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CLC2006/InterChange User Manual

1. LUCAS directory contains LUCAS2000 and LUCAS2006 point databases in ArcView shape file format with names LUCASOO shp dbf shx and LUCASO6 shp dbf shx respectively LUCAS field photos if available have to be copied from the separate source CD DVD or from internet into the photo00 and photo06 subdirectories respectively Prior to beginning the interpretation each map sheet directory contains two subdirectories and four files One of the four files is the project file interch2 apr which contains InterChange program The other three files make up the CLC2000 source database in ArcView shape file format The name of these three files must be exactly the same as the map sheet directory containing them The record structure the fields name size and type are strictly bound in the dbf file The two subdirectories bear the same names for all sheets Revision and Change Before starting the interpretation these contain only satellite images to be used in the corresponding tasks Revision subdirectory includes images from the early 2000 s needed for the correction of CLC2000 database practically the ones that were originally used for creating the CLC2000 database In Change subdirectory images from around year 2006 for change detection should be placed An example of directory structure before beginning the interpretation J Program of LUCAS SE al interch2 apr en sl eoy O32 dbf EE sl eov_032 shp EE sl eov_032 shx dE Rev
2. database polygon The rest outside selected polygon will disappear Thus outside the selected polygon you can draw the line on a simpler track The program creates the cut out polygon only if it is made up of a single part In case a multipart polygon would be created the program sends an error message and the drawing is unsuccessful In the error message dialog box you can decide whether to continue or stop trying If the created or remaining polygon is under the size limit you are also given an error message In this case you can decide whether you wish to execute splitting or not If you used the tool properly the bold polygon outline and or the mask disappears at the end of operation If due to improper use they do not disappear you can switch mask off with F7 keyboard shortcut or Polygon mask button Do not use this button before finishing the splitting operation or you exit the operation without performing the splitting In this case the bold outline left can be erased with Rewrite codes command The two polygons created with this tool inherit the original polygon s CLC code comment remark and error data When cutting out a non island piece from a polygon either Cut out polygon tool and Split polygon tool can be used Choose the tool that allows simpler operation with a smaller possibility of errors 4 1 3 Unifying polygons Unifying polygons is possible only in the CLC2000 database in the 2000 window In 2006 window the neighbouring pol
3. might appear in mapsheet directories These are temporary files created by ArcView during certain operations These files are normally automatically deleted when exiting ArcView however in certain cases deleting fails During a longer work process these temporary files might pile up Their presence does not cause errors though spoil perspicuity of directory content If disturbed by this you can delete all delta files when ArcView is not running Be careful not to delete any other files CLC2006 Support Package InterChange 3 User Interface 3 1 The modified interface When opening InterChange project window a modified ArcView interface appears Only those menus buttons tools and popup menus have been modified that are associated with 2000 window or 2006 window Edit View and Help menus button bar tool bar and popup menu have been changed File Theme Graphics and Window menus in the View window are left unaltered these are the same as the original ArcView menus 3 2 Edit menu Cut Themes Copy Themes Delete Themes Undo last edit Lil Bedalast edit Chr Union polygons Fa Deles D ou a D al Select tool Fe Search RI Eind nert Fa Save workspace F1 Settings Error checking Code statistics Import remarks Undo last edit Ctri Z state of polygons is rolled back to that at the beginning of the last editing operation Included in the popup menu too Redo last edit Ctri Y after performing Undo la
4. XY co ordinate x as 815000 Y za000 If the point specified in the XY co ordinate window falls outside the area of the map sheet you are working on the program sends an error message 4 3 9 Code statistics Select Code statistics button or the Code statistics command in Edit menu As a result the program calculates and displays four statistics and summary dialog The appropriate dbf files can be found in the mapsheet directory 21 CLC2006 Support Package InterChange e In the Code statistics window you can see aggregate data of the CLC2000 and Change database You can simply select sorting method for CLC2000 statistics or Change statistics Refresh all button recalculates all statistics Close all button closes four statistical tables and the dialog too e CLC2000 statistics stat2000 dbf collects all different codes and lists them It also counts how many polygons each code contains Pieces and calculates their total area Area and average area too Average e Change statistics statchng dbf collects all different Code2000 Code2006 pairs and lists them It counts how many polygons each change pair contains Pieces and calculates their total area Area and average area too Average The last column of the table contains the probability of the given change type P built in the change probability table e Change area statistics statarea dbf gathers change polygons into area intervals and shows how many polygons e
5. black green 30 CLC2006 Support Package InterChange yellow and magenta are the most suitable It is recommended to set different colours for CLC2000 and change database 7 2 Colourings and masks 7 2 1 Colouring of polygons ee Choice Box Colouring off r On the right side of the toolbar you find Polygon colouring labelled as Choice Box drop down list which allows you to switch on polygon colourings The colouring can be switched off with selecting the Colouring off line in the list the Colouring off button the View Colouring off menu command or the F8 keyboard shortcut Colouring polygons by errors Polygons appear in different colours according to their error type invalid missing code size error and both errors During error correction you get an overview of the position and number of polygons with error Code errors are up to date while size and shape errors are up to date only right after running error checking Colouring polygons by CLC codes One of the applications of the finished database is producing maps This colouring shows polygons according to the internationally set CLC colour coding Selecting this colouring the polygons appear in colours specified for the third level three digit CORINE categories zero coded polygons are white Before switching this colouring on it is recommended to switch off the visibility of background satellite images Colouri
6. C Errors size errors To code and merge errors C Remark delete polygon Mask Search Close 4 3 7 Search for change type All searches within Change database can be restricted to technical change polygons or real change polygons To carry out these select the relevant one from Change type check boxes If you select both the program searches among all polygons in Change database If you miss selecting at least one the program sends an error message You can search for all technical polygons too regardless of their other characteristics For this open Search window and in the Find what frame on the left select Category radio button Don t type any code into the code text boxes beside the radio button When clicking at Search button program sends a warning and begins the search for technical change polygons CJ Search in Change database Ei Find what Change type I technical IT real cae NETE zaag Bes Rm Comment C Errors size errors To code and merge errors C Remark delete polygon Mask Search Close 4 3 8 Find XY co ordinate With the Find XY tool an arbitrary co ordinate point can be find On clicking this button the XY co ordinate window opens In this window you can type in the co ordinates you are looking for Clicking the Find button brings the given co ordinates to the centre of the window and labels the location with a cross The scale of the window does not change
7. This remark is used only in the change database The old and or new code given by the interpreter is definitely incorrect on the basis of available satellite images After the colon the proposed correct code pair should be given e Correction Modify code or document clearly why you think your interpretation is correct Not a real change Proposed code in both dates is This remark is used only in the change database The change polygon does not outline a real change After the colon the proposed correct code should be given e Correction Delete polygon from change database and if necessary modify original code in CLC2000 database or document clearly why you think your interpretation is correct Delete polygon This remark appears only in the change database The polygon should be deleted because 28 CLC2006 Support Package InterChange e itis smaller than the size limit and there is no reason to keep it e it does not outline a real change e Correction Delete polygon with the Delete polygons tool Technical change This remark used only in the change database The change area should be marked as technical change e Correction Mark change area as technical change Further remarks are logical combinations of the ones listed above 29 CLC2006 Support Package InterChange 7 Information support 7 1 Code labels 7 1 1 Handling code labels Switching off and on code labels In areas with a lot of relatively s
8. can be seen If you click on Next button the next polygon found appears in the window By clicking on Next button repeatedly the program goes round all polygons found so after the last polygon it steps to the 18 CLC2006 Support Package InterChange first again In case there are no polygons matching search criteria or there are no more polygons because you have changed their data the program sends the following message Could not find After closing the Find xxx window you can still move to the next polygon matching the last search criteria with F3 keyboard shortcut InterChange program preserves the last search criteria for CLC2000 and Change database separately If 2000 window is active F3 continues last search in CLC2000 database or alternatively if 2006 window is active F3 continues last search in Change database F Find code change x gt 211 231 cc real Polygon 17 5 If you click on Mask button in the Search window the program will mask out all polygons matching the criteria instead of jumping on matching polygons one by one In case you do not wish to start a search the Search window can be closed with the Close button or the close widget in the window s upper right corner 4 3 2 Search for CLC code Open Search window and in the Find what frame on the left select Category radio button Type the wanted code into the code 2000 text box beside the radio button If 2006 window was active before opening the Search
9. databases Equivalent to Code statistics button Import remarks Imports supervisor s remark database created by InterCheck 2 0 Equivalent to Import remarks button CLC2006 Support Package InterChange 3 3 View menu Hew Theme Add theme oom to full extent oom to selected Zoom jr oor out Previous zoom Backspace Hestore workspace F12 CLC data window FY Toggle codes F5 Rewrite codes FE Polygon mask FY Colouring off Fe Add theme adds more themes layers to the active window Equivalent to Add theme button Zoom to full extent shows the full extent of all layers Equivalent to Zoom to full extent button Zoom to selected zooms to the size of selected polygons Equivalent to Zoom to selected button Zoom in zooms in on the centre of a view Equivalent to Zoom in button Zoom out zooms out from the centre of a view Equivalent to Zoom out button Previous zoom Backspace zooms to previous extent of the windows Used several times it zooms back to earlier scales Equivalent to Previous zoom button Restore workspace F12 window co ordinates and scale are rolled back to the workspace last saved Equivalent to Restore workspace button Find XY opens XY co ordinate window to find an arbitrary co ordinate point Equivalent to Find XY button CLC data window F9 opens and closes CLC data window Equivalent to CLC data window button Toggle codes F5 switches off on code l
10. follows in the order of their appearance LUCAS 2000 data Ei SSU A HU 037 139 13 date 06 07 2007 Land cover code C11 secondary Broadleaved forest Land use code We secondary Forestry D DU Close LUCAS point ID date of surveying in case of low data accuracy only a warning icon use Identify tool for further information primary and secondary land cover code and their text description primary and secondary land use code and their text description 34 CLC2006 Support Package InterChange LUCAS data window and LUCAS photo viewer instead of LUCASOO shp and or LUCAS06 shp files can only use specific LUCAS data files created with help of InterPrepare program LUCAS2000 points are located in groups of ten You can jump from one point to the next previous with help of arrow buttons in the bottom of the LUCAS data window LUCAS2006 points have a scattered non regular distribution so for this database arrows are not applicable The View photos button starts an external program called LUCAS photo viewer LUCAS photo viewer displays the main data of the currently selected LUCAS point as well as the field photographs belonging to the point if any The default position of LUCAS photo viewer program window when inactive is the bottom right corner of the screen covering as small part of ArcView s working area as possible Detailed information on the use of LUCAS photo viewer can be found in the progr
11. is unifying the polygons first then splitting them along the right borderline again This case though you have to specify the smaller polygon s code again because it is lost during unification For borderline modification in Change database delete then polygon with the Delete polygons tool and recreate it finally give CLC code to them Re interpret the area This remark refers to an area usually covered by several polygons that is misinterpreted and there are several border or code mistakes in it Remark might include explanation or if required a more detailed description can be read in the report e Correction In CLC2000 database unify the specified polygons in the given area with Union polygons tool then interpret the area again according to recommendation with Split polygon tool or Cut out polygon tool finally give CLC code to them In CLC2006 database delete the specified polygons in the given area with Delete polygons tool then re create the the change polygons finally give CLC code to them Missing change This remark used only in the change database The interpreter failed to outline the change area e Correction Create required change polygon Impossible change This remark used only in the change database The code change given by the interpreter is definitely improbable e g 111 gt 211 e Correction Modify code or Delete polygon from change database Wrong change code pair Proposed change from 2000 to 2006
12. linked files at their original path If the project is saved to another location and with a different name with File Save Project As command it will use and mutually overwrite the linked files together with the original project For this reason the empty project containing one of the CLC2006 Support program automatically sets its parameters depending on directory structure upon it s first starting The empty CORINE database files are created in the project directory also upon the first start Therefore CLC2006 Support Package project files should not be moved after their first opening as this renders them useless 2 2 Installation e Create a new directory for CLC2006 work at any location on your computer The directory name is optional but is must not exceed 8 characters Suggested names are e g clc clc2006 or corine Be careful that you use short directory and file names 8 3 usable characters A Z 0 9 and _ SS Ui only on all directory levels of paths referred to in CLC2006 work see example e Start install exe program which is found in root directory of the source CD or other data medium prepared and delivered by the CLC2006 national central team Select source and destination directory The program automatically specifies the source directory so normally you do not need to modify it As destination directory select the directory created on the basis of the first paragraph Click Install button The inst
13. parts the program gives an error message and the operation will be unsuccessful In the error message dialog box you can decide whether to continue or stop trying If any of the created polygons is under the size limit you are also given an error message This case you can decide whether you wish to execute splitting or not If a change area can delineate only on satellite images in 2000 window select polygon with Ctrl click In this case the bold outline of the selected polygon appears in 2000 window instead of 2006 window Program gives a warning message Draw the splitting line in 2000 window With help of satellite images for year 2000 you can draw the splitting line in the usual way The result of the operation appears once again in 2006 window lf you used the tool properly the bold polygon outline and or the mask disappears at the end of operation If due to improper use they do not disappear you can switch mask off with F7 keyboard shortcut or Polygon mask button Do not use this button before the splitting operation is finished or you exited the operation without performing the splitting If you do so the bold outline left can be erased with Rewrite codes command The two polygons created by splitting inherit the original polygon s CLC code comment remark and error data When cutting out a non island piece from a polygon either Cut out polygon tool and Split polygon tool can be used Choose the tool that allows simpler operation with a smal
14. releasing mouse by striking two keys with your left hand Strike F2 keyboard shortcut and the number key corresponding to the tool within the toolbar Identify F2 0 gives information on the attributes of a polygon selected by clicking on it in an active theme Distance F2 1 gives the distance defined by a line you draw with the mouse and displays it in the status bar Area F2 2 gives the area of a polygon drawn with the mouse in hectares Label F2 3 labels the polygon with its code at the location you click at inside the polygon ol Magnifier F2 4 Zooms in on the location you click at or on the box you define in the window Reducer F2 5 Zooms out from the position you click at or from the box you define in the window Pan F2 6 drags and moves the content of the window Select polygon F2 7 selects the polygons you click on or you drag a selection box over In the 2006 window you can initiate the creation of a change polygon with this tool With click selects remark point if any With Ctrl click selects LUCAS data point Cut out polygon F2 8 cuts an island or piece from the selected polygon Split polygon F2 9 splits the polygon into two separate polygons along a line drawn across the polygon with the pointer Save screen Sets wider polygon outlines as well larger code labels befor creating screen shots for documents and reports 3 Popup menu Popup menu appe
15. the Select polygon tool select the polygon s you wish to delete Select the first one with left click the others with Shift left click Same can also be used for deselecting a polygon Once the polygons are selected press Del key choose Delete polygons button Zl or Edit Delete polygons menu command The program sends an error message if there is no polygon selected The program draws a bold outline around the area to be deleted if polygons are properly selected CLC2006 Support Package InterChange Then a dialog box appears asking for confirmation Check carefully whether the polygons selected for deleting are really the ones you wish to delete On answering Yes the program performs the operation 4 1 5 Undoing operation Command for the last performed polygon editing operation can be withdrawn before performing a new operation with Ctrl Z keyboard shortcut or with Undo last edit command in Edit or popup menu The undone operation can be redone also before performing a new operation with Ctri Y keyboard shortcut or with Redo last edit command in Edit or popup menu Delete last point Outline off Pan oom IP oom out Redo last edit 4 2 Editing CLC data 4 2 1 The CLC data window CLC data window serves viewing specifying and modifying the data of individual polygons The window can be opened with CLC data window button E the F9 keyboard shortcut or the View CLC data window menu command Whe
16. window you will find a code 2006 text box as well Thus in the change database you can search for code 2000 code 2006 or code change code pair Not only three digit codes but also one or two digit codes eg 11 Urban fabric can be specified as search criteria If you type in a non existing code as search condition the program sends an error message when starting search When searching in CLC2000 database you can specify progress status unchecked and or ready polygons when searching in Change database you can specify change type technical and or real changes too If technical check box is selected program deletes the content of the code 2000 text box because in this case CLC2000 and CLC2006 codes must be identical 2 Search in Change database X Find what Change type technical W real code 2000 211 2006 SE Ce size errors To code and merge errors ere C Comment Errore C Remark Mask Search Close 4 3 3 Search for comment Open Search window and in the Find what frame on the left select Comment radio button Type a typical expression word or word fragment of the wanted comment into the Comment text box beside the radio button If you wish to find all polygons with any comment type asterisk as wanted text into the text box The program does not differentiate between lower and upper case letters during search By searching in CLC2000 database you can specify progress stat
17. 2 Saving workspace In case you wish to return later to a given part of the map sheet you can save the temporary view co ordinates and scale of the window with Save workspace button Edit Save workspace menu command or F11 keyboard shortcut After this you can move or zoom on the map sheet as you wish When you want to return to the workspace saved click Restore workspace button EK select View Restore workspace menu command or use F12 keyboard shortcut to restore the workspace area and scale you last saved The file containing data of the workspace is saved to the given map sheet s working directory Thus a separate workspace can be saved for each map sheet and can be restored any time later 5 3 Order of operations Revision and correction of CLC2000 database The revision of CLC2000 database which is found in the 2000 window should be done before beginning to interpret changes For revision always use satellite images in the Revision directory taken around 2000 Maximise 2000 window with the Tile windows on off button oO while revising the database After you have finished revision start error checking and correct errors found Repeat this procedure until no more errors are found in CLC2000 database Interpreting changes creating change database After finishing the revision of CLC2000 database divide screen between 2000 window and 2006 window with Tile windows on off button and perform change interpretation Systemat
18. 2000 satellite image or if it already exists as a polygon in CLC2000 database use Ctrl click for selection The area of the original patch in hectares appears in status bar e Next outline the changed area of the land cover patch in the 2006 window on the CLC2006 satellite image or if it already exists as a polygon in Change database use Ctrl click for selection In the status bar appears the area of the changed patch At the same time Area change window opens and shows the area of original patch first measure the area of the changed patch second measure and the size of change In Area change window you can see the change type too In Hints text box you find short instructions on how the given change should be interpreted 33 CLC2006 Support Package InterChange CZ Area change X Original area I 2000 26 34 ha Changed area 42006 43 86 ha Change ach 1752 ha Hints 4 Simple change in esisting polygon A 2000 gt 25 ha A 200E gt 25 ha SA ch 5 ha Interpret those change areas of the land cover patch that are larger than 5 ha and those that are elementary changes of a complex change greather than 5 ha Help button A t H opens the corresponding help topic The window can be closed with two buttons The default button out of the two is always the one whose use is the most likely according to the Hint s text Instead of clicking on it the default button can be operated quicker with striking
19. CLC2006 Support Package InterChange 2 0 for interpreters of land cover changes User Manual Copyright MLOG Instruments Ltd Hungary www mlog hu CLC2006 fax 36 1 416 56 50 Program development and text Gabor Taracsak English translation Barbara Kosztra January 2007 CLC2006 Support Package InterChange Content COMEN EE 2 Ac INtEFE HANGS PFOGlaMMosinissesicncossancacannesconramsernasinsstossivesassiuwncusninonniinwosenmanetudnedentonndmecdnemanceeiils 4 1 1 CLC2000 Support PACKS E 4 EE E E E EH 5 rA TNS SUC 0S E E E eases E E N E EEE NEA A E E A E A N T E 7 2 1 Projeti Eed 7 eZ ee EE PAC FIS Opening Of a ee EE 7 2 4 Customizing the workspace 8 Be MSO MOU EE 9 3 1 Tne Modea Bee EE 9 aE TON EE 9 sc VOW MONU EE 10 A TOP MONU ee 10 mo Moyen ee EE 10 70 lo TOO rr E E E AEE E E E EE ee ee ee 12 SE EE 12 4 interpretation ODCTAUIONS EE 13 Gs Oe O DOVO eee eee ee nee eee eet en eee eee ee ee nee ee een eer eee A er eee 13 delt MLO ONY OUM EE 13 da E Cuting out ee e el EE 14 By lig os IPAM VIG ONY OOM EE 15 e 1 4 Deleting IOI AON WEE 15 4 1 5 Undoing Baden E 16 aa T NS Oe Oko E 16 load Pea TE CLC Gata Te ele EE 16 4 2 2 Specifying th CLC el 17 4 2 3 Application Of COMMU EE 17 A a WV AO E EE 18 SE e EE 18 Oe dP Sale le ele UE 18 d Oe 5 De ACORN COO E 19 M29 Deane 1Ol e eu E 19 d E Oe A OM Ee 20 30 en TOP E 20 4 3 6 Search for Progress status 20 4 3 7 Search for change type EEN 21 4 3 8 Find X
20. Change 2 0 Edt View Theme Graphics Window Help Choice Box Colouring off sl Seale 1 17 956 BE tt 0 x CLC2006 Support Package InterChange 2 First steps 2 1 Project file characteristics ArcView program handles land cover databases grouped in so called projects A single project might contain several independent files such as raster databases satellite images scanned maps vector databases land cover maps vectorized maps tables graphs layouts scripts The project file links these project elements Project file has apr extension Individual elements remain independent files regardless of their belonging to the project Project contains only links according to path and file name not the files themselves However the project file s text contains in full the links created between files within ArcView current settings of ArcView s windows menus and controls newly created dialog boxes and supplementary macros Thus the individual settings and tools developed within a project such as the ones in CLC2006 Support macro packages are available only when the given project or projects created by modifying it is opened Since a project file stores links to files with full path the project file containing the links should not be simply moved to another location or computer not even if all linked files are moved or copied to that location If you move a project file this way the re located project will search for the
21. In case the polygon has more than one neighbour so it is not an island polygon the code of the polygon to be unified should be given after the colon e Correction Unify polygon with the specified neighbour with the Union polygons tool Split polygon The polygon consists of two or more areas with different category codes Remark may also include the recommended way of splitting and the code of polygons to be created e Correction 27 CLC2006 Support Package InterChange Split the polygon with the Split polygon or the Cut out polygon tool then modify the codes of the parts according to the suggestion From inside the polygon cut Used in case of usually large polygons that include small land cover patches that the interpreter failed to outline e Correction The specified locations can be found with help of the XY co ordinate button in the CLC data window Draw the new polygon with the Cut out polygon tool and give CLC code to it Draw polygon s border more precisely The polygon borderline is inaccurate does not properly match the patch of land cover category in the satellite image e Correction Correct polygon borderline Borderline modification in CLC2000 database must be carried out with the Split polygon and the Union polygons tool However with these tools only one piece of area can be moved from one polygon to the other at a time If you have to modify two polygons borderline at more points a more effective method
22. LOG and the authors This agreement does not grant for the User any commercial or intellectual property rights in the Software The Software is protected by copyright law of Hungary and international treaty provisions as well as other intellectual property laws and treaties All trademarks and service marks mentioned in Software or documentation are the property of their respective owners The Software is licensed not sold and not received as a present by the User The User may not commercially distribute sublicense resell or otherwise transfer for any consideration or reproduce for any such purposes the Software or any modification or derivation thereof either alone or in conjunction with any other product or program Further the User may not modify the Software User agrees not to adapt translate reverse engineer decompile disassemble decrypt or otherwise attempt to discover the source code of the Software or any subset of the Software Any such unauthorised use shall result in immediate and automatic termination of this license and may result in criminal and or civil prosecution The Software is being delivered to the User as is MLOG and the authors of the Software disclaim all warranties expressed or implied including without limitation the warranties of merchantability and of fitness for any purpose assume no liability for damages direct or consequential which may result from the use of the Software Entire risk arising out of use
23. Y co ordinate sisccsetss die Gematinndionn dopduiceiademswnanes ddbjedoeysiiedinandebhennts Soeuwts Adee douwsciedvenclenastioseeosavined dae 21 4 3 9 ele E 21 4 4 Error CHECKING and CONMCCHON EE 23 AAA Stating SrO Ee ln Le ME 23 E deele e E 23 5 The interpretation procesS eer ennn nnne nnmnnn nnne 24 SREE EEE E 24 eA VII WOKS e 24 De Order ee e E 24 5 4 Revision Of CLC 2000 database anaes 25 5 9 JATCTPICHING CHAN OCS EE 25 SEENEN 26 6 1 The CONN OC OI EE 26 6 2 OPPO CHOON aler COMMU ON EE 26 ORC Ee ee Ae 68 lt fee ee ree ee em ene ere ae eee er eee ener ee ee 2 CLC2006 Support Package InterChange t Ir tel a E SUPPONE EE 30 ee E COO IOG eatery ences tee oe ees ares a en sense E ae ness anni eee ae 30 1 1 1 Handling ee e EE 30 7 1 2 Setting label properties 20 2 0 ecccccecccceeeceeeeececeecesseeceeeeeseaeeeeseeessaueesseeeeeseeesseseeeeaseeeeses 30 la COOU ana ee 31 1 2 1 Colouring of ee e el 31 Fak POVON un 31 7 2 3 Searching with help Of mask ees 32 Ta Z is DANO SCICEM VOOM eege 32 FB AION MAUON feiere ne 33 POWs WAC WIE LOOM E 33 WZ DIZOHC ACK TO EE 33 To CLUCAS data VOW EE 34 PA SY SLC Ter e EE E S uaitanannvanisdan dined cuthandagunnsiesthca slap E EEES EEE EE 35 TAT General Del erscnsiis EA EE E Ea 35 FO GLC C006 Delp siap a E ne ee eee eer ee 36 7 4 3 Popup texts and status bar 36 ISSO al Ch SONS E 37 ro pad EE ee ee 37 9 Special GECKEN 38 TOCCO S UE 0 EE 38 9 2 OGLCZ2000 Source EN 39 93 C
24. a macro package written in Avenue ArcView s own macro language The software is a supplement to ArcView 3 2 3 3 GIS Working with CLC2006 Support Package requires a basic knowledge of using ArcView GIS The use of the CLC2006 Support Package significantly facilitates updating change detection quality control and correction of land cover databases by means of computer assisted visual photointerpretation Minimum system requirements e IBM PC compatible computer e 2 GHz processor e 512 MB RAM e 17 monitor at least 1024x768 pixel resolution e Windows 95 98 or Windows NT 2000 XP operation system e ArcView GIS 3 2 3 3 software CLC2006 Support Package consists of four interrelated programs all which can be used independently InterPrepare for the national central team InterPrepare can be used for the preparation of source files and work directories for change detection to be carried out with InterChange For interpreting changes with InterChange program a pre described directory structure has to be built for the interpreters The directory structure should contain all files needed for change detection The source data must have a pre set record structure All the above tasks can be simply solved with InterPrepare CLC code table editor allows substitution of standard English CLC nomenclature category names and descriptions with national language nomenclature in InterChange program Nomenclature can be edited and can also be extended with fo
25. a result of interpretation you have to submit the shp shx and dbf files from the Revision and the Change subdirectory A further technical control of these databases with a computer and a thematic control by another expert is highly recommended For thematic control a slightly different program called InterCheck part of CLC2006 Support Package should be used The controlling expert Supervisor can put down his her notes on mistakes and correction suggestions for the interpreter corrector in the Remark database created by InterCheck program During thematic control the remarks referring to polygons or to individual points of the map sheet are written in this database Using CLC2006 Support Package thematic control and correction based on supervisor s remarks is simple to carry out and also to repeat several times during interpretation procedure In case the interpretation made with InterChange and thematic control is made by InterCheck the same single directory structure and files can be used throughout the production procedure Copying or moving of files is not necessary The two actions interpretation and control only reads but never overwrites each others data Naturally interpreter and supervisor should never work simultaneously on a single map sheet In order to ensure maximum security it is highly recommended to regularly make backup saves of CLC2000 and change data files containing the results of work from each map sheets Re
26. abel Magnifier Reducer Pan Select polygon Cut out polygon Split polygon If CLC data window is active Alt H CLC code help Alt W write in data into the database Alt C close CLC data window If Area change window is active Alt H open help for change interpretation Alt continue with change interpretation Alt C close Area change window 37 CLC2006 Support Package InterChange 9 Special information 9 1 Directory structure Change detection with InterChange program requires a pre defined directory structure which has to be built up for all interpreters This structure can be easily created with help of InterPrepare program part of CLC2006 Support Package This directory structure can then be copied to any optional place on the hard disc of the computer used by the interpreter Interpreters may receive the directory structure built for them either on CD or any high storage capacity data medium or they might download it through a sufficient fast network Within the directory structure the Program directory contains the files needed for running InterChange program In Doc directory you will find InterChange s printable documentation in PDF format printable keyboard template and other written information A separate subdirectory belongs to each map sheet to be interpreted The name of this subdirectory is recommended to refer to the topographic identification of the map sheet or working unit but must not exceed 7 characters
27. abels Equivalent to Toggle codes button Rewrite codes F6 deletes and rewrites all code labels Equivalent to Rewrite codes button Polygon mask F7 switches on off the mask covering the selected polygon s surroundings Equivalent to Polygon mask button Colouring off F8 switches off colouring switched on with Choice box list Equivalent to Colouring off button 3 4 Help menu How to Get Help Inter bange help About ArCH eu About Interchange InterChange help opens the help for InterChange program Equivalent to InterChange help button About InterChange shows the banner of InterChange program 3 5 Button bar AAO JEN Save project ArcView s original Save Project button Equivalent to File Save Project menu command Save workspace saves momentary co ordinates and scale of windows Equivalent to Edit Save workspace menu command 10 CLC2006 Support Package InterChange Add theme adds more themes layers to the active window the same as ArcView s original Add theme button Equivalent to View Add theme menu command Import remarks Imports supervisor s remark database created by InterCheck 2 0 Equivalent to Edit import remarks menu command Zoom to full extent shows full extent of all layers Equivalent to View Zoom to full extent menu command Zoom to selected adjusts scale to the size of selected polygons Equivalent to View Zoom to s
28. ach interval contains Pieces and calculates their total area Area too Probability statistics statprob db f gathers change polygons by change probability P counts how many polygons belong to each probability Pieces and calculates their total area Area GJ Code statistics i x Table Sort by C Code 2000 Ce Code 2006 Piece Area Average i CLC2000 statistics Ce Change statistics Number of polygons 423 Total area 146259 ha Change database Number of polygons 19 Changed area 2223 ha in percent of total area 1 522 Retresh all Close all Close Possible values of P probability of code change e 0 technical change Code2000 Code2006 or code error Code2000 0 e 1 probable change e 2 rarely occurring change careful checking recommended e 3 improbable change very careful checking and documentation recommended c Change statistics all 122 1 E 196 1 PPE eee EEL ELLE nannan PPE EEL EEL ELLE nannan PPP EEE ELLE LLL nannan 1 0 ha 5i 17 EEE eee Pee eee If you double click any row in a table the program starts a search for polygons with the selected code change type area or change probability respectively This search method is especially useful for repeated checking of rarely occurring and almost improbable changes 22 CLC2006 Support Package InterChange 4 4 Error checking and corr
29. all program copies the needed directories and files to the specified destination directory and deletes their read only attribute The read only attribute of files on a CD is always set and it does not change after copying You must not change the name of directories or files A map sheet working unit directory cannot be moved after the first opening of the included project file 2 3 First opening of a project Start ArcView program With File Open Project command open the interch2 apr project file in the map sheet directory you wish to work on If Program directory is incomplete the program gives an error message and the start is unsuccessful In case of successful opening the InterChange macro package automatically starts Then from the original source database in the main sheet directory the program creates CLC2000 database in the Revision subdirectory and loads it to 2000 window The CLC2000 database is given the same name as the map sheet directory except for an r ending r shp r shx and r dbf ending The empty change database is created in the Change subdirectory and is loaded into 2006 window Files of the change database bear the name of map sheet directory with a c ending c shp c shx and c dbf ending The original source database in the map sheet s base directory remains unchanged during interpretation After creating and loading CLC2006 Support Package InterChange databases InterChange sets theme legends and some other pa
30. am s own help Close button of LUCAS data window closes both LUCAS windows E LUCAS photo viewer Thumbnail images settings E put down window 7 4 Help system 7 4 1 General help General InterChange help The general InterChange help you are just reading can be opened with the Help InterChange help menu command or the InterChange help button in the button bar The help window is similar to that used in Windows programs You can choose a help topic in the Contents or search for key words and expressions in the help index 35 CLC2006 Support Package InterChange Context sensitive help On clicking gt gt What is this lt lt help button in the button bar the cursor changes its shape Click on any button tool or menu command with this question marked cursor and the general help window opens with information on the selected control element The cursor then assumes its former shape so you have to click gt gt What is this lt lt help button again in order to ask specific information again If you click with question marked cursor on a control in any InterChange dialog box CLC data CLC code help Search Settings the corresponding help topic appears If any of the above dialog boxes is active F1 key can also be used to open the corresponding help topic 7 4 2 CLC code help CLC code help window can be opened by clicking on Code help button in the CLC data window It gives you a detailed description of the catego
31. ars when you right click in the 2000 window or 2006 window Within the menu you can select a command without releasing right mouse If you release right mouse button the popup menu disappears Delete last point Outline off Pan oom in oom out Undo last edit Bedo last edit Delete last point deletes the last point given while drawing a line or polygon Repeating the operation deletes the previous points one by one Outline off switches off the bold outline that appears around the selected polygon while performing Split polygon or Cut out polygon command Pan moves the content of the window so that the window centre is at the pointer s location Zoom in zooms in on the window so that the window centre is at the pointer s location Zoom out zooms out from the window so that the window centre is at the pointer s location Undo last edit state of polygons is rolled back to that at the beginning of the last polygon edit operation Equivalent to Edit Undo last edit command Redo last edit after performing Undo last edit command state of polygons is rolled forward by the last undone polygon edit operation Equivalent to Edit Redo last edit command CLC2006 Support Package InterChange 4 Interpretation operations 4 1 Editing polygons 4 1 1 Splitting polygon With the Split polygon tool an existing polygon can be cut into two separate parts First select the polygon to be
32. ated land C Ce Side SEI Code help saan 211 aang 133 Code help Comment Comment T technical change Frequently used comments Frequently used comments A A A Field photo available No 3214 ee height white Close window EE Au SE With the Window height slider you can adjust the size of the CLC data window by changing the height of CLC code list Write button writes the contents of the CLC data window into the database while Close button closes the window CLC data window covers a significant part of the screen In the case of drawing splitting unifying or searching for large polygons or whenever you need a large screen area it is recommended that you close this window This can be done with the Close button Alt C keyboard shortcut or the close widget in the upper right corner of the window When one of the View windows is active F9 keyboard shortcut closes or reopens CLC data window 4 2 2 Specifying the CLC code With the Select polygon tool select the polygon whose data you wish to edit When CLC data window is opened the data of the selected polygon appear in it Code 2006 Area 43 56 ha 131 132 Mineral extraction sites SUE sites Pee ELLE LLL eer TL bt tr 141 RO urban areas 1 42 sport and leisure facilities nE 211 PA 133 Code help DEED T technical change Select the line of the right CLC code from the list of category codes The code number of the select
33. click the endpoint is a vertex too If you wish to zoom in or out during drawing use popup menu s Zoom in or Zoom out command In case the polygon stretches outside the area seen in the window use popup menu s Pan command which moves the content of the window so that pointer is located at the centre of the window If a change area can delineate only on satellite images in 2000 window select polygon with Ctrl click In this case the bold outline of the selected polygon appears in 2000 window instead of 2006 window Program gives a warning message Draw the splitting line in 2000 window With help of satellite images for year 2000 you can draw the splitting line in the usual way The result of the operation appears once again in 2006 window Cases of successful polygon cutting out naturally only one polygon can be drawn at a time The left diagram shows the polygon as drawn with the tool the right diagram depicts the database polygon created 1 cutting out an island polygon 2 cutting out a polygon at borderline Cases of unsuccessful polygon cutting out bringing up an error message 3 The selected polygon would be cut into three parts 4 The new polygon is drawn fully outside the selected polygon The drawn polygon does not necessarily have to be an island be fully inside the selected polygon Only that part of the drawn polygon that is inside the selected one will make up the new 14 CLC2006 Support Package InterChange
34. des 10 30 satellite image 7 save project 7 10 save screen 12 30 32 save workspace 9 10 24 scale 8 search 9 10 18 select polygon 12 25 select tool 9 services 5 settings 8 9 10 30 32 show all remark 26 size 33 size error 20 sorting 21 split polygon 12 13 statistics 9 10 21 area 21 change 21 code 21 probability 21 status 31 status bar 36 CLC2006 Support Package stop button 23 submission 24 supervisor 26 system requirements 4 technical change 21 thematic control 26 theme 7 add 7 tile windows 10 toggle codes 10 30 toolbar 12 undo last edit 9 12 16 unifying 15 union polygons 9 10 15 user interface 9 video card 8 View menu 10 View window 9 What is this help 10 width 33 43 InterChange workspace 24 restoring 24 saving 24 writing data 18 XY co ordinate 21 zoom in 10 12 zoom out 10 12 zoom to full extent 10 zoom to selected 10
35. e polygons might also be born during intersection of overlapping polygons Small polygons on mapsheet border are usually parts of bigger polygons cut by mapsheet border In the course of error checking the program writes remark border into the Error field of these polygons and the third bit of error code is set These polygons will be selected neither when switching on error colouring nor when searching for size error Error checking does not mark those small polygons that were intentionally kept by the interpreter during the interpretation Marking polygons with shape error The program searches for polygons with average width under the width limit It writes the shape notice into Error field of these polygons data record and sets the second bit marking size and shape error in their error code field The program is unable to find polygons whose width is under the limit only in some places Marking polygons with invalid category code This operation serves finding those polygons that have an empty code field in their data record you forgot to give a code when creating it it lost code or was created during earlier parts of error checking and correction or the code field contains an invalid value which is impossible if interpretation tools were properly used For these polygons the program writes 0 into the code field C2000 xxx or C2006 xxx notice into the Error field and in the error code field it sets the first bit marking code error The n
36. e polygon itself as well also displaying its data in the CLC data window If a polygon contains a remark its text is displayed when selecting the polygon the same way as if the point itself would have been selected One polygon might contain more than one remark point When selecting such polygon only the number of included remarks is displayed in the remark textbox Remark 2 IY show all done 1S remarks in polygon You can view the text of these remark points jumping along the points one by one by clicking on the Next remark button in upper right hand corner of the text field During this the serial number of currently selected point total number of points in the polygon is displayed beside the Remark label 26 CLC2006 Support Package InterChange Remark 3 8 M chow all done Delete polygon A Processing and fulfilling the action requested in the remark can be registered by clicking on the done checkbox in CLC data window The program immediately writes done attribute to the point s data record and the colour of the point turns from red to green The done status can be deleted again with help of the checkbox after selecting such point again Remark 1 1 M show all M done E Draw polgon s border more precisely A In case you want only those remarks to appear on the screen that still wait to be fulfilled and the processed ones to disappear switch off by clicking the show all checkbox In switched off s
37. ecking the program lists the number and type of errors found in an information window If no error has been found the program reports it in a dialog box The result of error checking is written into a text file too You can find the text file in the map sheet directory under error r log name in case error checking was performed for the CLC2000 Revision database and under error e Log name in case error checking was performed for the Change database Results of further error checkings are added to the end of these files Error checking Error checking 2007 03 08 19 34 for the change database polygons with size error 1 polygons with invalid code 2 4 4 2 Error correction Open Search window and find the next polygon with error After correcting the error or even without it you can jump to the next polygon with the Next button of the Find next window or by pressing the F3 key The program jumps round the matching polygons cyclically meaning that after the last polygon it jumps to the first not yet corrected one If there are no matching polygons left the program sends a message Could not find Correction method of individual error types e In case of those polygons below size limit that you still wish to keep write in category code again and in the appearing dialog box choose keeping the polygon e Unneeded small polygons in the CLC2000 database must be unified with one of their neighbours during the correction In the chan
38. ection 4 4 1 Starting error checking If you follow the instructions of the printed user s guide and the pieces of advice in this help and you use InterChange program properly and carefully then the created land cover database is not likely to contain errors However programs have an efficient error finding and correcting tool in order to filter the results of accidental mistakes You should perform error checking and correction at least once when you finish interpretation and before submitting your results If you are not an experienced interpreter or you work on a difficult map sheet it is useful to perform error checking a few times during interpretation You can start error checking by clicking the Error checking button or select Error checking command in the Edit menu The program asks for confirmation The operation starts on clicking Yes lf 2000 window was active before starting error checking then the program will check CLC2000 database while it will check the change database if 2006 window was active before starting the operation You can find detailed description of the individual error checking operations in the chapter Special information During error checking a progress bar can be seen at the bottom of the screen While performing the most time consuming operations a Stop button appears beside the progress bar thus you can stop error checking The Stop button does not appear during shorter operations Upon completing the error ch
39. ed category appears in the Code text box The fastest way of moving in the list to the required line is to drag and drop the slider of the scroll bar on the right Detailed description of the selected code in the CLC code list is available by clicking on Code help button You can directly type the code number into Code text box without using the list After each digit typed in the program checks whether there are any existing CLC codes beginning with the given numbers If there are the program jumps to the first matching code and selects it If you type in a wrong value the program selects line Invalid code in the list If a change polygon is selected you can edit both code Select appropriate radio button to enable desired code text box If technical change check box is selected you can t select 2000 radio button or specify CLC2000 code because in this case CLC2000 and CLC2006 codes must be identical 4 2 3 Application of comments During interpretation you might need to add questions or notes to a polygon then search for them The Comment text box in CLC data window serves this purpose The comment added to a polygon appears in this text box when the given polygon is selected 17 CLC2006 Support Package InterChange The comment must not exceed 255 characters To add a new comment or to modify an existing one you can select from the drop down list of most common comments or type your comment in the text box The comment selected from the dro
40. elected from a list box A short comment can be added to polygons Interpreter can modify also CLC2000 code of change polygons Interpreter can add technical change attribute to change polygons Colour of polygon outlines as well as colour and size of code labels can be set separately for the two windows Centre of the workspace can be positioned to a user specified XY coordinate Actual coordinates and scale of the active View window can be saved to hard disc and can be reloaded with a click Interpreter can search for polygons according to several characteristics such as CLC code change type comment error Supervisor s remark progress status area change probability or technical change New principle and advanced features are available for importing searching and fulfilling Supervisor s remarks Main error prevention functions When selecting and writing in the CLC code the program does not allow the use of invalid category codes CLC2006 Support Package InterChange When editing polygons the program warns if the created polygon is smaller than the size limit or is a multipart polygon Non adjacent polygons cannot be unified An error checking and correcting tool helps to find and correct overlapping or multipart polygons selecting polygons below size limit with shape error with invalid or zero code Information support LUCAS land cover and land use data and field photos can be viewed with a single click if data avai
41. elected menu command Zoom in zooms in on the centre of a view Equivalent to View Zoom in menu command Zoom out zooms out from the centre of a view Equivalent to View Zoom out menu command Previous zoom zooms to previous scale Used several times zooms back to earlier scales Equivalent to View Previous zoom menu command 0 Restore workspace window co ordinates and scale are rolled back to the workspace last saved Equivalent to View Restore workspace menu command Tile windows on off changes from screen divided between the two windows to full screen view and back Union polygons unifies two selected adjacent polygons Can be used only when 2000 window is active Equivalent to Edit Union polygons menu command Delete polygons deletes selected polygons Can be used only when 2006 window is active Equivalent to Edit Delete polygons menu command CLC data window opens and closes CLC data window Equivalent to View CLC data window menu command Toggle codes switches off on code labels Equivalent to View Toggle codes menu command Rewrite codes deletes and rewrites all code labels Equivalent to View Rewrite codes menu command Settings opens Settings window in which code label and polygon outline colour code label font size and save screen parameters can be set Equivalent to Edit Settings menu command Polygon mask switches on off the ma
42. ely modified in the Settings window Modified settings are kept even if you use the Label the Magnifier the Reducer or the Pan tools with help of which you can adjust the view to be saved If the view is adjusted save it to the clipboard by pushing Ctir PrintScreen keys Open an image editor or word processor program paste image into a document and save to disc 32 CLC2006 Support Package InterChange In order to continue work choose Identify Distance Area Select polygon Cut out polygon or Split polygon tool This will reset the settings polygon boundary width and code label font size is readjusted according to original settings 7 3 Information providing tools 7 3 1 Identify tool The Identify tool in the toolbar provides the same service as in ArcView Clicking with it in 2000 window or 2006 window opens Identity results window which provides detailed information on the polygon you clicked on in the active theme If the desired theme is not active activate it with a sigle click on its name in the windows left side in the legend stripe In Identity results window on the left you can read the name of the polygon while on the right all data belonging to it in the table GJ Identify Results Clear Clear All 7 3 2 Size check tools Checking width Distance tool serves the checking of a land cover patch s or a polygon s width to make sure whether it is above width limit Begin the line to be measured with a sin
43. ge database simply delete unneeded small polygons Those extremely tiny polygons that were created by mistake along polygon borderlines might not be visible unless you zoom in on them a lot e Polygons with code error should be corrected by giving a category code to them e Neighbouring polygons with the same category code in the CLC2000 database have the error type merge These polygon pairs should be either unified or the code of one of them changed The operations above delete the corresponding bit from the error code and the error type text from the error field With error colouring you get an overview of the number and position of polygons with error 23 CLC2006 Support Package InterChange 5 The interpretation process 5 1 General advice When working with smaller performance computer on a map sheet containing a lot of polygons some editing and search operations might need significant time Be careful that in the meantime you do not strike a further key or start a new operation Always wait until the program fully performs the operation started and its result appears on the screen The program does not perform an automatic save after polygon editing operations because that would make the use of undo command impossible Periodically save your project while editing it For maximum data safety it is recommended frequently backup the CLC2000 and change databases from Revision and Change subdirectory of each map sheet directory 5
44. gle click As you move the pointer the distance between start point and the pointers position in metres can be seen in the status bar at the bottom of the screen With further clicks you can define the total length of a broken line as well Finish length measurement with a double click The length of the last section and the line s total length remains visible in the status bar Estimating polygon area and change area Interpreting a change area might require a long time and it might happen that during editing the polygon proves to be small and it ends up that it should not have been interpreted For this reason it is useful first to examine with the quick Area tool whether it is worth beginning at all the editing operation Outline roughly the area of the polygon you wish to create with the tool Vertexes can be drawn with left mouse click and last points can be deleted with right click Popup menu commands are available here too Upon closing line with a double click in the status bar you can read the area of the outlined part in hectares The area of existing polygons can be found out without drawing if you click on the polygon with Ctrl key held down Ctrl click method works for CLC2000 database polygons in 2000 window and only for change database polygons in 2006 window Area tool can also be used for estimating change areas To compare the area of a changed land cover patch in both window e first outline the patch in the 2000 window on the CLC
45. hange CALA DAS E 39 9 4 ege ee DIOCOSS EE 40 MO NGC EE 41 10 7 End user license agreement unene 41 Je EE 42 CLC2006 Support Package InterChange 1 InterChange program 1 1 CLC2006 Support Package Background CLC2006 Support Package is a significantly modified and improved version of CLC2000 Support Package The CLC2000 software has been developed for Remote Sensing Centre of Hungarian Institute of Geodesy Cartography and Remote Sensing FOMI in order to help the implementation of the European CLC2000 project managed jointly by the European Environment Agency EEA and Joint Research Centre JRC The CLC2000 software was also used by many European national teams 15 out of 30 participating countries used it for interpreting changes in CLC2000 project CLC2006 Support Package is distributed by MLOG Instruments Ltd Budapest Hungary www mlog hu CLC2006 fax 36 1 416 56 50 Main features CLC2006 Support Package operates under ArcView environment ArcView software is designed primarily for viewing GIS databases with tools for creating maps menus for handling databases and graphical editing tools At the same time ArcView includes only limited and less effective tools for creating and filling new polygon databases or modifying existing polygon databases As a solution CLC2006 Support Package under ArcView provides a cheap tool for quick and comfortable editing and handling of CORINE Land Cover databases CLC2006 Support Package is
46. ically examine the whole area all the polygons of the map sheet whether they contain changes If more satellite images are available for the year 2006 check for changes on all of them Check whether the change matches interpretation criteria Before beginning to create change polygons in a given area check the affected CLC2000 polygons whether they need further correction If you classify the affected polygons as correct create the change polygons on the basis of satellite images in the 2006 window Creation of change polygon consists of the following steps 1 take over CLC2000 polygon containing a change into the Change database 2 cut out change area from the polygon taken over 3 delete the unchanged part of polygon taken over 4 specify the new code of remaining change polygon Program InterChange facilitates these operation significantly A given CLC2000 polygon might of course contain more than one change area If this is the case steps 2 and 4 must be completed for all change areas To monitor the status of the work you can give a ready status to a CLC2000 polygon if you have examined it and all its changes have been delineated It is not recommended to carry out corrections in the CLC2000 database on the given area once you interpreted changes If however later you happen to find mistakes in a CLC2000 polygon that already has a change polygon on its area the program might delete change polygons depending on the type of correcti
47. izion E E 20000425 lan ee 20000425 sta ee E 20060512 lan d 20060512 sta SE E 20060802 Lan ee E 20060802 sta 38 CLC2006 Support Package InterChange 9 2 CLC2000 source database Data record structure of CLC2000 source databases as found in map sheet directories at the beginning of work e Shape field The polygon that the data record belongs to e Code2000 field numeric FIELD_ DECIMAL 5 digits O decimal CORINE category code data inherited from the original CLC2000 database e Area field numeric FIELD_ DECIMAL 12 digits 2 decimals Area of the polygon in square metre e Perimeter field numeric FIELD_ DECIMAL 12 digits 2 decimals Perimeter of the polygon in metre InterChange uses it for polygon identification and error prevention e Comment field character FIELD_VCHAR 255 characters Interpreter s comments on the polygon e Error field character FIELD_VCHAR 50 characters Errors of the polygon given as text e E field numeric FIELD DECIMAL 2 digits 0 decimal Errors of the polygon given numerically as a code e Done field numeric FIELD DECIMAL 1 digits 0 decimal Revised status of the polygon 9 3 Change database Data record structure of change databases created by InterChange e Shape field The polygon that the data record belongs to e CLC2000 field numeric FIELD_ DECIMAL 5 digits 0 decimal CORINE category code data of the change polygon inhe
48. lable on computer With optional error colouring the interpreter gets an overview of areas yet to be interpreted small polygons polygons with shape error or without code Code colouring shows interpreted areas with standard international CORINE colour coding Work status colouring allows the interpreter to follow the progress made in change detection the size and position of areas yet to be examined Code change colouring helps identification of those changes that are less likely to occur thus might need further consideration Code labels of polygons can be switched off on and can be refreshed A temporary code label can be placed anywhere in the polygon Detailed description of a chosen code can be obtained in a separate window with a single click Description might also be available in national language instead of English the content being the responsibility of the national project leader With the area measurement tool the area of a planned polygon can be quickly estimated e Advanced code polygon area and code change probability statistics available e Thicker polygon outlines as well as larger code labels can be switched on before creating screenshots for documents and reports InterChange program provides all menus pop up texts information lines and dialog boxes in English Detailed help context sensitive help and printable user s guide all in English are inherent parts of the program 2 Arc iew GIS 3 2 Inter
49. ler possibility of errors Left successful polygon splitting Right cases of unsuccessful polygon splitting bringing up an error message 2 the splitting line is outside the selected polygon 3 the splitting line does not entirely cross the selected polygon 4 the selected polygon would be cut into three parts 13 CLC2006 Support Package InterChange 4 1 2 Cutting out polygon With the Cut out polygon tool you can create a new polygon inside an existing polygon First select the polygon to be cut with a single click of this tool In case you have not selected any polygon you clicked on area not interpreted or you selected more than one polygon clicked too close to polygon borderline the program sends an error message A bold outline appears around the selected polygon which is helpful especially when splitting large or complex shaped polygons Bold outline can be switched off any time during drawing with popup menu s Outline off command Instead of or together with bold outline you can also use polygon masking This tool can be switched on with F7 keyboard shortcut or Polygon mask button after first click selection with split tool but before you begin to draw The new polygon s vertexes are defined with left clicks within the selected polygon s borderline Vertexes can be deleted backward one by one with right clicking and choosing Delete last point command from the popup menu Polygon drawing is finished with a double
50. mall polygons the code labels might disturb the interpreter during interpretation In these cases code labels can be switched off on the screen with Toggle codes button the Toggle codes command in the View menu or with the F5 keyboard shortcut Repeating the command code labels are switched on again This command does not refresh the content and position of labels so they will appear at the same position as before switching off Manual code labelling ArcView places code labels in the geometric centre of the polygon Therefore sometimes it is difficult to find the code label of polygons that are large have complicated shape or concentric position The labels might fall outside the view as well In order to solve this problem you can manually place code labels on any part of the polygon Choose Label tool EI Click at the required location inside the polygon and its code appears at that location This way you can place several code labels within a polygon These manual labels stay there when you switch labels off and on but they disappear after you perform any polygon editing operation or refreshed code labels Label tool works in 2000 window with CLC2000 database in 2006 window with Change database Rewriting code labels After significant zooming in or out code labels might appear outside the polygon they belong to This case you can delete and rewrite them with the Rewrite codes button the Rewrite codes command in the View menu or the F6 ke
51. n a single polygon is selected in the active view window the CLC data window displays the data of this polygon In other cases it appears with the default settings In the upper frame of the window you find supervisor remark information of the polygon if any e remark number selected all in polygon e show all remarks check box e remark done fulfilled checkbox e Next remark button e remark text In the lower frame you find polygon data e ready approved check box for CLC2000 polygons errors of the polygon if any area of the selected polygon expressed in hectares whole CORINE 1 100 000 land cover nomenclature with short name for polygons in the CLC2000 database CLC2000 code for polygons in the Change database CLC2000 and CLC2006 code radio buttons for selecting editable code technical change check box button for opening CLC code help list of most frequently used comments text box for displaying and writing in a comment button for clearing the comment text box CLC2006 Support Package InterChange CLC2000 data CZ Change of CLC data F show all done Remark Bj aani doe Polygon data ready Polygon data Error size Code 2000 Area 15 12 ha Code 2006 Area 43 56 ha Pastures Construction sites Annual and permanent crops Green urban areas Complex cultivation patterns Spork and leisure facilities Agriculture with natural vegetation Non irigated arable lard Agro foresty areas Permanently irrig
52. ng CLC2000 polygons by status While creating the change database there is a possibility of classifying CLC2000 polygons as ready if the whole area of the polygon is checked Status colouring shows these polygons in light grey while polygons yet to be checked remain transparent Thus you can check how much progress you have made in the change detection and where there are areas yet to be worked Colouring change polygons by probability of change To each change type pair of old code new code belongs a value indicating the probability of that land cover change Change colouring shows polygons with code error zero code and technical change polygons in red area of probable changes in grey area of rarely occurring changes in yellow and the area of improbable changes in magenta This colouring draws attention to areas of less probable changes which should be checked and documented with special care 7 2 2 Polygon mask A black mask around selected polygons can be switched on or off in the active View window with the Polygon mask button the View Polygon mask menu command or the F7 keyboard shortcut When the mask is switched on only the selected polygons are visible the rest of the view is black 31 CLC2006 Support Package InterChange Polygon mask is especially useful in avoiding mistakes when splitting or cutting out a polygon It is also a helpful tool when you examine polygons with complicated shape and you want to elimina
53. on made In this case you have to create the change polygons again If you modify CLC2000 database while already working on change database you have to repeat error checking and correction on them 24 CLC2006 Support Package InterChange Switching on status colouring you can check the progress made in change detection Perform error checking and correct errors in the change database after you have finished change detection Repeat this as long as the program finds any errors Even after this it is recommended to check each change polygon once more Pay special attention to checking and documentation of rarely occurring and improbable changes Submission and control As interpreter finished interpretation he she have to submit the shp shx and dbf files from Revision and Change subdirectories of each interpreted map sheet as a result Central team controls databases and documents the errors and mistakes If the original interpreter corrects the mistakes he or she must read the remarks of the supervisor and implement corrections 5 4 Revision of CLC2000 database The following cases might occur during the revision of CLC2000 database e The polygon has wrong code Modify code in CLC data window A polygon must be cut into pieces and be re coded Use Split polygon or Cut out polygon tool to perform the operation You have to unify more polygons into one Use Union polygons command e Polygon borderline has to be modified In 2000 window
54. or performance of the Software remains with the User 41 CLC2006 Support Package Index about InterChange 35 add theme 7 10 ArcView 4 area 12 33 area Change 33 Avenue 4 border polygon 40 button bar 10 category 17 change 21 probability 21 Statistics 21 change area statistics 21 change database 25 change interpretation 24 25 change statistics 21 change type 21 CLC code help 36 CLC data 16 17 editing 16 specifying 17 CLC data window 8 10 16 CLC2000 17 25 CLC2000 statistics 21 CLC2006 17 CLC2006 Support Package 4 CLCdata 18 writing 18 code 17 21 30 CLC2000 17 CLC2006 17 colour 30 font size 30 statistics 21 code error 20 code statistics 21 colour 30 colour depth 8 colouring 31 change 31 CLC code 31 error 31 probability 31 progress status 31 colouring off 10 comment 17 comment txt 17 control 24 copyright 4 CORINE 31 correcting 23 correction 26 cut out polygon 12 14 delete last point 12 delete polygons 9 10 15 deleting 15 delta files 8 directory 7 directory structure 38 distance 12 33 Edit menu 9 error 20 23 code 20 correction 23 merge 20 size 20 error checking 9 10 23 31 40 find next 9 18 find XY 10 finding 19 20 21 32 change type 21 CLC code 19 comment 19 errors 20 progress status 20 remark 20 with mask 32 XY co ordinate 21 font size 8 30 general advice 24 handling remarks 27 hardwa
55. p down list can be modified or completed in the text box The Delete comment button on the right side of the list clears Comment text box UE technical change Frequently used comments Field checking required A El You can find the list of most commonly used comment in the comment txt file in Program directory The list can be modified with help of any text editor program such as Windows Notepad In the text each paragraph forms a separate comment First two comments paragraphs in the text must not be modified at any case 4 2 4 Writing the data Content of the CLC data window is written into the land cover database with the Write button or Alt W keyboard shortcut if CLC data window is active The program checks the data and the selected polygon before writing in and if finds any error it sends an error message If data matches the criteria program writes data into the data table The outline of the selected polygon flashes a few times during this procedure so you can check whether data are written into the right polygon After writing in the data the data table is saved into the corresponding dbf file The polygon is deselected and the CLC data window assumes default settings In case you wish to continue editing the polygon data you have to select it again with the Select polygon tool Window height SCH SE write Close 4 3 Search 4 3 1 The Search window Search window can be opened with the Search button
56. polygon s data record During the creation of change database you have the possibility to classify as ready those CLC2000 polygons that you have examined This option should be chosen only if the whole area of the polygon has been thoroughly examined It is not recommended to use it in case of large polygons No only classify as ready The program writes in ready classification into the CLC2000 polygon s data record The option should be chosen only if you have examined the whole area of the polygon and there are definitely no or no more change areas in it It is recommended to use in two cases a small polygons without any changes b large polygons containing several change areas after all changes have been interpreted and the whole polygon is examined again No only delete ready classification Choose this option if you classified a polygon ready by mistake or if you have doubts about the polygon and you find necessary to check it later Use Split polygon or Cut out polygon tool for splitting up polygons taken over to change database in order to create change polygons While performing splitting consider warnings on polygons under size limit created Always delete unneeded pieces of the split polygon areas that have not changed with Delete polygons tool and keep only change areas Specify the change polygon s new code in CLC data window 25 CLC2006 Support Package InterChange 6 Quality control 6 1 The control procedure As
57. rameters Then saves the modified project in a name identical to that of the map sheet directory and sends a message announcing that the project is ready for starting work on With Add theme button or View Add theme command further themes layers can be added to the windows From the appropriate directory load the satellite images you need for interpretation using this command You can change the order of layers by dragging and dropping their names in the windows left side in the legend stripe Drag satellite images below the CLC2000 and the change theme respectively before starting interpretation It is recommended that you switch off with switch box beside the name those themes that you do not use at the moment because redrawing many layers might significantly slow the program s run This is applicable especially for satellite images and other raster files Save project again with File Save Project command or Save project button before starting interpretation Project creates the recommended workspace and window settings upon its first start It is possible though impractical to modify it On later starts the project will always appear with the setting at the last save 2 4 Customizing the workspace Before starting to work it is recommended to set monitor resolution to minimum 1024 x 768 pixels and colour depth to 65 536 colours Hi Color minimum If monitor and video card allow 1280 x 1024 pixels or higher and 16 million colour
58. re 4 help 35 36 Help menu 10 hotkeys 37 identify 12 33 import remarks 9 importing remarks 26 installation 7 interch2 apr 7 InterChange 4 5 7 9 10 35 about 10 35 help 10 35 installation 7 user interface 9 InterCheck 4 26 InterPrepare 4 invalid category code 40 keyboard shortcuts 37 label 12 30 license 41 LUCAS 5 34 LUCAS data window 34 LUCAS photo viewer 34 magnifier 12 mask 13 14 31 32 merge error 20 MLOG 4 41 monitor 8 new services 5 next 18 next remark 26 open project 7 outline off 12 pan 12 polygon 8 13 14 15 18 25 30 31 33 40 border 40 cut out 14 delete 15 finding 18 island 14 mask 13 14 31 multipart 40 neighbours 40 outline 8 13 14 42 InterChange outline colour 30 overlapping 40 redy 25 shape error 40 size 33 size limit 40 split 13 take over 25 unifying 15 width 33 polygon mask 10 popup menu 12 popup text 36 previous zoom 10 printscreen 32 probability 31 probability statistics 21 progress bar 23 progress status 20 project 7 10 copying 7 moving 7 open save 7 10 project file 7 quality control 26 ready 25 record structure 39 redo last edit 9 12 16 reducer 12 remark 5 21 26 27 remark done 26 remark finding 26 remark importing 26 remark next 26 remark show all 26 remark unchecked 26 resolution 8 restore workspace 10 24 revision 24 25 rewrite co
59. rited from the CLC2000 database e Code2000 field numeric FIELD_ DECIMAL 5 digits 0 decimal CORINE category code data of the change in year 2000 e Code2006 field numeric FIELD_ DECIMAL 5 digits 0 decimal CORINE category code data of the change in year 2006 e Area field numeric FIELD_ DECIMAL 12 digits 2 decimals Area of the polygon in square metre e Perimeter field numeric FIELD_ DECIMAL 12 digits 2 decimals Perimeter of the polygon in metre InterChange uses it for polygon identification and error prevention e Comment field character FIELD_VCHAR 255 characters Interpreter s comments on the polygon e Error field character FIELD_VCHAR 50 characters Errors of the polygon given as text e E field numeric FIELD_ DECIMAL 2 digits 0 decimal Errors of the polygon given numerically as a code e T field numeric FIELD_ DECIMAL 1 digits O decimal Technical change attribute e P field numeric FIELD_ DECIMAL 1 digits O decimal Probability of the change Label field numeric FIELD_VCHAR 16 characters Label of the change polygon Code2000 Code2006 39 CLC2006 Support Package InterChange 9 4 Error checking process Intersecting overlapping polygons Longest part of error checking so during this process a Stop button appears beside progress bar which enables you to stop the process Stop button does not appear while the program performs other shorter processe
60. ry code selected in the code list CLC code help window can be dragged and resized at will It is always placed in front of the other windows so it is recommended to close it with Close button when not needed any more As long as this window is opened its content follows the changes of CLC code list in CLC data window CJ CLC code help 133 Construction sites Spaces under constuction development soil or bedrock excavations earthworks 7 4 3 Popup texts and status bar If you need more information on controls created or modified in InterChange program you can find it in the popup texts and in the status bar at the bottom of the screen Popup text and status bar help appears if you moves the mouse pointer over a control Comment i technical change Frequently used comments A Field checking required Window height r Si SE write Close E Deletes the text in comment text box 36 CLC2006 Support Package InterChange 8 Keyboard shortcuts 8 1 Keyboard shortcuts If 2000 or 2006 window is active F12 Back Del context sensitive help select tool find next matching polygon union poligons code labels off on refresh code labels polygon mask on off colouring off open or close CLC data window save workspace restore workspace zoom to previous extent delete polygon Ctrl S Find open Search window Tool shortcuts after F2 0 D OO JO Om P WN Identify Distance Area L
61. s True Color is recommended When setting the monitor resolution do not use large fonts or individual font settings choose small fonts from the font size list When using larger fonts it might happen that some texts in the program are not fully seen or not perfectly readable CLC data window can always be seen in front of the other windows Dragging the header bar you can move the window The height of the window more precisely that of the CLC code list within the window can be adjusted with help of the Window height slider in the lower left corner In case you wish to use the whole screen during an operation it is recommended that you close CLC data window This can be done with Close button Alt C keyboard shortcut or the usual Windows close widget in the upper right corner When one of View windows are active F9 keyboard shortcut closes and opens CLC data window Scale of the View windows can be manually set Optimal scale value depends on the resolution of satellite images and other ancillary data and the actual interpretation task The usual recommended value is between 1 20 000 and 1 40 000 Larger scale might show unnecessary details and slow down work while smaller scale might hide some details Polygon outline colour code label colours and font size can be modified in the Settings window In most of the cases default yellow and magenta are the most suitable distinctive colour In the course of work files named deltal delta2
62. s of error checking Overlaps are those parts of the map sheet that belong to more than one polygon Finding and correcting overlaps might take several minutes depending on number and complexity of polygons and the computer s performance During the process the progress bar might not move on for some time when checking especially big and difficult polygons you are asked to have patience during this Taking apart multipart polygons Multipart polygons consist of more polygons in terms of topology but a single common data record belongs to them They could be created by unifying non adjacent polygons or by splitting a polygon with a single splitting line into three parts instead of two These possible mistakes are however checked and indicated during polygon editing so they are unlikely to appear After being taken apart multipart polygons lose the content of code comment error and remark data fields because they were presumably originally incorrect in case of at least one of the parts Re calculating polygon data After correcting topology errors the program re calculates area and perimeter values for each polygon Marking polygons under size limit The program writes the size notice into Error field of those polygons data record that are smaller than then size limit specified for the given database In the error code field of these polygons the program sets the second bit marking size and shape error These small sometimes undetectabl
63. sk covering the selected polygon s surroundings Equivalent to View Polygon mask menu command Colouring off switches off polygon colouring Equivalent to View Colouring off menu command Search You can search for polygons according to several features such as CLC code change type comment error Supervisor s remark progress status or technical change Equivalent to Edit Search menu command Find XY opens XY co ordinate window to find an arbitrary co ordinate point Equivalent to View Find XY menu command Code statistics calculates and opens tables containing code statistics of both databases Equivalent to Edit Code statistics menu command gt gt What is this lt lt help context sensitive help Gives information on the button tool or menu command selected with the pointer InterChange help opens the help for InterChange program Equivalent to Help InterChange help menu command Error checking starts error checking which finds and corrects overlapping and multipart polygons and finds polygons under size limit polygons with shape error average width under limit and polygons with invalid or missing code Equivalent to Edit Error checking menu command 11 CLC2006 Support Package InterChange 3 6 Toolbar D rea In order to support fast and effective interpretation tools in the toolbar can be selected not only with the mouse You can change tool without moving or
64. split by clicking on with this tool In case you have not selected any polygon you clicked on area not interpreted or you selected more than one polygon clicked too close to polygon borderline the program sends an error message A bold outline appears around the selected polygon which is especially helpful when splitting large or complex shaped polygons Bold outline can be switched off any time during drawing with popup menu s Outline off command Instead of or together with bold outline you can also use polygon masking This tool can be switched on with F7 keyboard shortcut or Polygon mask button after first click selection with split tool but before you begin to draw Position pointer outside the polygon s borderline where you want to start the splitting line Starting point and endpoint of splitting line must be outside the polygon otherwise the operation will be unsuccessful Be especially careful that you split the polygon to no more than two parts and that the parts are connected not multipart Define starting point and vertexes with left click and close the line at the endpoint with double click If you wish to zoom in or out while drawing use popup menu s Zoom in or Zoom out command In case the polygon stretches outside the area seen in the window use popup menu s Pan command which moves the content of the window so that pointer is located at the centre of the window In case you split the polygon into more than two separate
65. st edit command state of polygons is rolled forward by the last undone editing operation Included in the popup menu too Union polygons F4 unifies two selected adjacent polygons Can be used only when 2000 window is active Equivalent to Union polygons button Delete polygons Del deletes selected polygons Can be used only when 2006 window is active Equivalent to Delete polygons button Select tool F2 n opens Tool window and after pressing the n number key n 0 9 selects the appropriate tool See keyboard template Search Ctri S opens Search window You can search for polygons according to several features such as CLC code change type comment error supervisor s remark progress status or technical change Equivalent to Search button Find next F3 moves to the next polygon that matches search criteria Save workspace F11 saves momentary co ordinates and scale of windows Equivalent to Save workspace button Settings opens Settings window in which code label and polygon outline colour code label font size and save screen parameters can be set Equivalent to Settings button Error checking starts error checking which finds and corrects overlapping and multipart polygons and finds polygons under size limit polygons with shape error and polygons with invalid or missing code Equivalent to Error checking button Code statistics calculates and opens tables containing code statistics of both
66. tabase X Find what Change type technical WW real code 2000 2006 local I size errors M code and merge errors See f Category C Comment C Remark Mask Search Close Searching for polygon errors is recommended primarily after error checking in order to search for errors found by the error checking There is no point in searching for size error before error checking because size and shape errors are written to the polygons data records only during this procedure Code error can be searched for any time because code error is written to the new polygon s data record at the time of creation 4 3 5 Search for remark Search for remarks is needed only during the correction of mistakes revealed by quality control Open Search window and in the Find what frame on the left select Remark radio button Type a typical expression word or word fragment of the wanted remark into the Remark text box beside the radio button If you wish to find all polygons with any remark type asterisk as wanted text into the text box The program does not differentiate between lower and upper case letters during search After specifying criteria start search with the Search or Mask button 2 Search in Change database X Find what Change type technical J real code 000 006 C Comment C Errors size errors To code and merge errors Hema delete povgon SSCS mee f Categor
67. tatus of show all checkbox only red remark points appear on the screen the Next remark button jumps to the next unchecked point within the polygon and search tool finds also only the unchecked points when searching for remarks Remark 1 6 T show all done E B unchecked remarks in polygon A 6 3 Handling remarks This list of most frequently used remarks describes in which cases the quality Supervisor uses a given remark and how should it be handled during correction Questionable code check it This remark used only in the CLC2000 database The code cannot be specified on the basis of available satellite images More information is needed for deciding which code to use e Correction Check by fieldwork ask for information by phone or specify the code on the basis of other information Additional information should always be documented Wrong code suggestion This remark used only in the CLC2000 database The code given by the interpreter is definitely incorrect on the basis of available satellite images After the colon the proposed correct code should be given e Correction Modify code or document clearly why you think your code is correct Unify polygon with neighbour whose code is This remark used only in the CLC2000 database Polygon should be unified because e itis smaller than the size limit and there is no reason to keep it e its land cover does not differ from its neighbour s
68. te the disturbing presence of surrounding polygons 7 2 3 Searching with help of mask Set the search conditions in Search window then click Mask button This case the program will set off matching polygons with a black mask on their environment instead of jumping on them one by one You can move or change scale on the masked area at will If you do not need the mask any more you can switch it off with the Polygon mask button 2 the View Polygon mask menu command or the F7 keyboard shortcut Searching with mask is especially useful when looking for polygons with some similar features It can also be helpful when at an advanced state of work you are looking for polygons you still have something to do with With this method you can find polygons with e the same category code or change type e any comment or remark e agiven key word e g field checking in the comment or remark text e a given error type 7 2 4 Save screen tool Compilation or illustration of reports documents computer demonstrations might make necessary creating screenshots from certain parts of the map sheet Due to resizing thin polygon boundaries and tiny code labels are very often hardly if at all visible and readable on these saved images In case you want to make such screenshot for documentation purposes select the Save screen EI tool As a result the program increases polygon boundary width and code label font size These parameters can be fre
69. the Enter key Both buttons have a keyboard shortcut too e Use nterpret button Alt if you have to interpret the change area according to the Hints text On selecting this button 2006 window and Select polygon tool will become active e With Close button A t C the program restores the state before the window was opened Last used window and Area tool will become active 7 3 3 LUCAS data window When opening a map sheet for the first time program checks if there are LUCASOO shp and or LUCAS06 shp files in the LUCAS directory found on the same directory level as map sheet directories If LUCAS data are found they are loaded into the corresponding view window Data belonging to LUCAS points might serve as useful ancillary data during change mapping The full data content belonging to a LUCAS point can be displayed with the Identify tool D Incase the information found in LUCAS data window strongly contradict the satellite image check this additional information on the LUCAS point High observation distance low GPS accuracy and non field observation might be the cause of disagreement between LUCAS information and the satellite image However usually only certain data are needed during change mapping These can be viewed if you select the required LUCAS point by Ctrl clicking with the Select polygon tool If LUCAS data window is not opened yet the program opens it and loads in it the most important data of the selected LUCAS point These are as
70. the Search command in Edit menu or the Ctrl F keyboard shortcut On the left side of the Search window you find Find what radio button group which specifies the search target Further criteria or the text searched after can be specified for some of the searches By searching in CLC2000 database you can specify progress status unchecked and or ready polygons by searching in Change database you can specify change type technical and or real changes too After specifying criteria start search with the Search button CJ Search in Change database Ei Find what Change type technical J real code 2000 211 2006 SEN E IT se errors To code and merge errors CJ Search in CLC2000 database Ei Find what Progress status W unchecked ready code 000 SE eg size errors To code and merge errors f Category f Category C Comment C Errors Comment C Errore Next the program finds selects and enlarges the first polygon matching the search criteria In order to be easily identified the outline of the polygon flashes The same time as the polygon is selected the Find xxx window opens In the header of the window xxx is replaced by the search target The Find xxx window is always in front of all other windows in the foremost position First row of the window shows search criteria Below that the serial number of recently shown polygon number of all polygons found
71. there is no tool for deleting and re drawing polygons Borderline modification must be carried out with the Split polygon and the Union polygons tool However with these tools only one piece of area can be moved from one polygon to the other at a time If you have to modify two polygons borderline at more points a more effective method is unifying the polygons first then splitting them along the right borderline again This case though you have to specify again the smaller polygon s code because it is changed during unification 5 5 Interpreting changes If it is not obvious at first sight whether a change area is large enough to be interpreted measure its area with the Area tool before interpreting it While using this tool you also get further pieces of advice on the steps of interpretation In case you interpret a narrow patch be careful to check width with the Distance tool In the 2006 window click with the Select polygon tool to the area where you observed a change or to the polygon you examined A dialog window appears asking a question Take over selected polygon to change database There are four choices e Yes take over The program copies the CLC2000 polygon containing a change into the change database Then you can cut the area of actual land cover change from this polygon Yes take over and classify as ready The program takes over the polygon to the change database and writes in the ready classification to the CLC2000
72. umber xxx written to the Error field is the invalid code value usually zero the program found in code field during error checking Marking neighbours with similar code This process is performed only if 2000 window was active before starting error checking thus the CLC2000 database is being checked The process is also time demanding so a Stop button appears in the status bar beside progress bar to stop error checking with The program searches for neighbours with similar category code writes merge notice into the Error field and in the error code field it sets the fourth bit marking merge error 40 CLC2006 Support Package InterChange 10 License 10 1 End user license agreement This end user license agreement Agreement is a legal agreement between MLOG Instruments Ltd VLOG and customer of the software license User By installing and using the CLC2006 Support Package software Software User agree to be bound by the terms of this Agreement Subject to the terms and conditions of this Agreement and User s acceptance thereof MLOG hereby grants to User and User accept a personal non transferable non exclusive license which shall be revocable pursuant to the terms of this Agreement to installing the Software thus much computer as many corresponds to the number of purchased Software licences The Software is owned by MLOG and the software authors The structure organisation and code of the Software are valuable trade secrets of M
73. urth and fifth level categories if required InterChange for interpreters of land cover changes InterChange program provides a tool for the revision of CLC2000 land cover database and supports the interpretation of land cover changes in order to create the CLC2006 database The program provides a convenient and easy to use interface for editing polygons in CLC2000 and CLC Change databases for viewing and modification of polygons data and for finding and correction of errors generated during interpretation and editing InterChange program was designed specially for revision of existing land cover databases and interpretation of land cover changes It is unsuitable for primary interpretation of satellite images and for building up an independent land cover database For CLC2006 Support Package InterChange these purposes a separate program called InterView was developed which has been used in the production of national CLC2000 databases in Croatia Hungary and Serbia Montenegro InterCheck for checking final databases InterCheck program serves the checking of revised CLC2000 and CLC Change map sheets working units InterCheck program has been prepared primarily for supporting the CLC2006 Technical Team although national central teams might apply it as a tool for final checking of the completed CLC2006 and CLC Change databases InterCheck can be used for checking CLC2006 and CLC Change databases in any file format that can be added to ArcVie
74. us unchecked and or ready polygons by searching in Change database you can specify change type technical and or real changes too CZ Search in Change database X Find what Change type technical J real Categor code 2000 2006 Comment local Errors size errors T code and merge errors C Remark CLC2006 Support Package InterChange 4 3 4 Search for data errors Open Search window and in the Find what frame on the left select Errors radio button Beside this radio button you find two check boxes to refine search criteria If you select size errors check box the program searches for polygons under the given size limit When creating change polygons or giving a code to them the program sends a warning message if the polygon is below size limit If you still decide to keep these polygons they will not be displayed during size error search If you select code and merge errors check box the program searches for polygons with invalid category codes and for neighbouring polygons with the same category code only in CLC2000 database On selecting both check boxes the program searches for both error types If you fail to select at least one check box the program sends an error message By searching in CLC2000 database you can specify progress status unchecked and or ready polygons by searching in Change database you can specify change type technical and or real changes too CJ Search in Change da
75. vision and Change directory 6 2 Correction after control During thematic control the supervisor creates two ArcView shapefile format point databases with help of InterCheck program and writes his or her remarks and recommendations into text fields belonging to each point Files Remark_r shp dbf shx created in Revision subdirectory of the concerned map sheet contains remarks on CLC2000 database while files Remark_c shp dbf shx in Change subdirectory contain remarks on the change database In order to correct them remarks can be imported to the corresponding view window by clicking on Import remarks button or choosing the Edit Import remarks menu command The two remark databases can be imported separately as in certain phases of the work only either CLC2000 or the change datbase is under supervisor control creating only one database at a time Single remark points can be selected by clicking on them with the Select polygon tool Selected point is marked by its yellow colour meanwhile the remark s text is displayed in remark text field of the CLC data window Remark 1 1 M show all T done E Draw polgon s border more precisely In CLC2000 database all remark point necessarily fall into a polygon s area In change database however remark point might also be out of any polygon s area for example in a change area that the interpreter missed to delineate If selected point falls into a polygon s area the program selects th
76. w program as a theme ArcView shapefile ARC INFO coverage AutoCAD drawing etc i e not only those that has been prepared with InterChange 1 2 Services Red color indicates new services in InterChange 2 0 versus 1 0 Creating new change database When InterChange is started for the first time it automatically creates a workspace optimised for change detection and an empty change database on which the interpretation can immediately be started Polygon editing functions The interpreter can easily correct errors in the CLC2000 database and create new polygons in the change database create a new polygon inside a polygon split a polygon into two parts unify two neighbouring polygons delete polygons Tools supporting interpretation InterChange program displays CLC2000 database and the change database in two separate View windows 2000 2006 constantly synchronising their content All data belonging to a selected polygon are shown in the CLC data window The program keeps checking for interpretation rules and warns the interpreter when errors occur during data editing and data input Edited data are integrated into the corresponding database with a single click Interpreter can change from screen divided between two windows to full screen view of one window with a single click The environment of the selected polygon s can be masked out Data can be edited quickly usually also by using the keyboard CLC code can be s
77. y Mask Search Close If remark theme is absent in the active view window program displays a warning message Othervise finds and selects the first remark point matching the search criteria and displays remark text in CLC data window If the found remark point is located in a polygon program selects polygon too and displays its data in the CLC data window According to the setting of show all check box in CLC data window search occurs among all remark points or only among the unchecked remark points 4 3 6 Search for progress status All searches within CLC2000 database can be restricted to polygons already checked or polygons not examined yet To carry out these select the relevant one from Progress status check boxes If you select both the program searches among all polygons in CLC2000 database If you miss selecting at least one the program sends an error message 20 CLC2006 Support Package InterChange You can search for all checked or all not examined polygons too regardless of their other characteristics For this open Search window and in the Find what frame on the left select Category radio button Don t type any code into the code 2000 text box beside the radio button When clicking at Search button program sends a warning and begins the search for polygons with specified progress status flag Search in CLC2000 database x Find what Progress status W unchecked ready oe IE zaag Comment
78. yboard shortcut This operation is automatically performed each time after you edit polygons or you write in polygon data to the table 7 1 2 Setting label properties The optimal font size of code labels depends on the size quality and resolution of the monitor used during interpretation Sometimes you might need to change the colour of code labels and polygon outlines because of significant differences within satellite images You can open Settings window with the Settings button la or the Edit Settings menu command When opened the window shows settings of the CLC2000 and Change themes The code label and polygon outline colours and the code label font size can be modified with radio buttons as well In Save screen panel polygon outline width and code label font size can be set for creating screen shots for documents and reports Modify button performs the selected modifications Cancel button closes the Settings window without performing modifications CZ Settings X CLC2000 theme Colour C white blue Ce yellow cyan C ted magenta C geen black Font size Ge Int 15pt C 13pt 18pt Save screen Label font size mg Polygon border width 3 Colours should be chosen so that the lines stand out best in front of the area just being interpreted This depends very much on the quality and settings of the monitor used In most of the cases default Change theme Colour C white blue C pelon cyan C ted Ce magenta
79. ygons of a change area cannot be unified not even if their new code is similar The reason for this is that each polygon in the change database must keep its old code individually With the Select polygon tool select two neighbouring polygons you wish to unify Select the first one with left click the second with Shift left click Same can also be used for deselecting a polygon You can also select two polygons by dragging the selection box over them Once the two polygons are selected press F4 key choose Union polygons button CH or Edit Union polygons menu command The program sends an error message if you selected any number other then two polygons or if the selected polygons are not adjacent The program draws a bold outline around the area to be unified if polygons are properly selected Then a dialog box appears asking for confirmation Check whether the right polygons are selected for unification On answering Yes the program performs the operation The unified polygon inherits CLC code comment remark and error data except merge error from the larger polygon A maximum of two polygons can be unified with one operation Unification of more than two polygons requires more than one operation 4 1 4 Deleting polygon Polygons can be deleted only from the Change database in the 2006 window In the CLC2000 database in 2000 window you can only modify polygon borderline or change CLC code and you cannot delete a polygon With

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