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1. 6 Chapter 2 A new concept CHAPTER 3 Geoportal s layout In order to leave the largest area possible to the map area the other elements have been grouped when ever possible The layout is then cut in only three parts one of them almost negligible e The header e A central panel with the map e A left panel giving access to lots of functionnalities GAM DRIS Username eeeeseee Risk Management Portal for Gambia Select Organize Locate Print Geo catalogue Q ale fl A willl Temporal Profiles gt gt om Base Layer pe Es Sj General data 3 C Administrative boundaries 68 C Topographic map 3S Elevation ID Elevation SRTM O Sopes 63 C Hydrography Land use 3 O Soils 3 J Climate 1950 2000 from WorkdClim 33 Population LEC Population by administrative unit GBOS 2013 OEC Population density hha GBOS 2013 LEIC Population density in 2010 AFRIPOP 63 7 Education 3 G Health 8 O Infrastructures Land related hazards C Marine related hazards Lon 17 087 Lat 14 833 H 50km J 20 mi 1 5000000 y Figure 3 1 Global layout 3 1 Header panel The header panel is the simplest part It contains The site s name Geoportal for Risk Management for Gambia Release 2 10 3 1 GAM DRIS User name eoccccce Sign in nglis y ES a k Management Portal for Gambia EA Figure 3 2 Header panel e The login form for registered users an2. Locate tab regroups some positionning tools zoom by administrative areas searching for a place in an external placenames database Print tab is the printing configuration panel Geo catalogue tab is the form to search for data in the metadata database This is the library database search area 3 3 Left panel the control center 9 Geoportal for Risk Management for Gambia Release 2 10 3 1 10 Chapter 3 Geoportal s layout CHAPTER 4 Building a map Most of the geoportal is about mapping select overlays organize overlays compose them in order to print some maps Here is a typical workflow using the map 4 1 Select overlays This happens in the left panel first tab Every checked layer is added to the map It is hierarchically organized in a tree like structure unfold a folder to see what s inside It can contain several kinds of nodes e other folders Folders are represented with a when closed and a 3 when open e WMS layers They are the most common map layers They are represented with a icon and a checkbox e Chart layers They are less common They will show as pie or bar charts at some locations on the map They are represented with a AS icon and a checkbox Some nodes have a description it will pop up when leaving the mouse over for a second 4 2 Organize overlays This is the function of the second tab the Organize tab The layers checked in the Select tab are initially stacked a
3. Chapter 3 Geoportal s layout Geoportal for Risk Management for Gambia Release 2 10 3 1 3 3 Left panel the control center Select Organize Locate Print Geo catalogue E Base Layer Sj General data 3 Sj Administrative boundaries ORE Gambia GBOS LEIC Regions GBOS LSE Districts GBOS S wards GBOS 3 Topographic map Y Sj Elevation OEC Elevation SRTM 3 0 Stopes 3 Hydrography J Land use 8 O Soils C Climate 1950 2000 from WorkiClim 3 3 Population A S Population by administrative unit GBOS 2013 51 Population density h ha GBOS 2013 DAE Population density in 2010 AFRIPOP Sj Education O schools GBOS 2013 LSE Specialised schools GBOS 2013 OSE Colleges GBOS 2013 USI University GBOS 2013 4 J Health J Infrastructures EJ Land related hazards C Marine related hazards Figure 3 4 Left panel The left panel is composed of several tabs Select tab is a hierarchical list of cartographic overlays layers Checking a layer will add it to the map After checking the layers to display it will be necessary to order them properly add some transparency etc This happens in the next tab Organize tab is merely empty at the beginning It gets filled as one checks some layers in the Select tab The checked layers are added in the Overlays folder It is the place to reorganize them manage them consult them
4. Ek RRR Gy ad AS AA 31 8 2 PlAnimatios 0 0 0 000 a 32 8 3 Index willl Temporal profiles Geoportal for Risk Management for Gambia Release 2 10 3 1 User Manual This is the public user documentation for the Geoportal for Risk Management in Gambia Last update December 01 2014 Author Jean Pommier pi Geosolutions jean pommier pi geosolutions fr http www pi geosolutions fr Contents 1 Geoportal for Risk Management for Gambia Release 2 10 3 1 2 Contents CHAPTER 1 Preface The interactive web site for Risk Management described in this documentation is born from cutting edge open source cartographic tools It was built using several open source components known for their seriousness GeoNetwork on line cataloging software GeoServer web map server Open Layers web mapping library bound with ExtJS GeoExt Javascript high level framework and Post greSQL PostGIS as database The result is more a software than a web site Let s say an on line software This kind of software is usually called a Geoportal In the following chapters we will call it the Geoportal for Risk Management in Gambia or simply Geoportal It has been developed on World Bank s initiative Geoportal for Risk Management for Gambia Release 2 10 3 1 4 Chapter 1 Preface CHAPTER 2 A new concept Geoportals are a recent concept and still not completely grown up They answer to a need
5. a metadata sheet available Road Network too has a metadata sheet 14 Chapter 4 Building a map Geoportal for Risk Management for Gambia Release 2 10 3 1 View Metadata A layer having metadata will be represented with the M indicator When selected left click on it the M button on the panel s top toolbar will be activated On the layer s context menu right click on the layer the Metadata entry will be activated too Clicking on one of those will open the metadata sheet if you have access rights to this metadata Oth erwise a message will tell you don t have the access rights meaning the access is restricted to some registered users you have to log in tenos am risk pigeo fr ar risk an2_10 apps gcoportal index htmI hi ena Figure 4 7 Opening the metadata sheet on the right See also the Geo catalog section about metadata 4 4 3 Use transparency curtain swipe controls Transparency It is possible to make a layer partially transparent This allows to overlay several layers for example overlay hillshade data over a topographic map to add some elevation effect on the map e Organize tocas Frnt coat A QLD fF rro cy yall remocralrrones gt Plarmatons 4 gt LP IM A Base layers Figure 4 8 Overlapping slopes information over a topographic map enhances the map with some 3D effect A right click on a layer
6. for secure and organized storage for geospatial data and usually offer some tools to manipulate the stored data search view etc Historically geoportals are two part tools e A mapping component in which the user can display geospatial data in an online dynamic inter face This is common case that people don t go further The second part is more for advanced users e A cataloging component usually separated from the first one Its role is to give storage and search facilities for documents including geospatial ones It occurs to be the most important part This is in fact a kind of library cataloging software The informations sheets it uses are called metadata The Geoportal for Risk Management in Gambia features a new concept combining those tools in a unique portal It brings several advantages such as e Better and easier interaction between catalog and dynamic map Geospatial data stored in the catalog can be added to the map by a simple click The search results are directly displayed over the map The map geospatial overlays are constantly connected with their metadata and you can consult them at any moment e Common tools are developed once only e Mutualized computer coding resulting in lighter solution and easier updates e A unique interface simpler access This makes the Geoportal a true Information System rich and complete Geoportal for Risk Management for Gambia Release 2 10 3 1
7. press the pause button 8 3 uill Temporal profiles This tool is activated by clicking the sell Temporal Profile button on the map s top toolbar Temporal Profiles 2 nx NDVI SoilMoisture vel peppa Annual data Display the NDVI variation on an area over the last year 10 days intervals Yearly variations M Decade 1 Choose the year to display E Decade 2 Year 2000 v x 255 E Decade 3 o UA 01 02 03 04 05 06 07 08 09 10 11 12 Figure 8 4 NDVI index annual data graphic age Apply The form of the mouse cursor changes to a question mark Click a place on the map where you want to get some profiling information It will open a window The window has several tabs one per dataset e NDVI Normalized Difference Vegetation Index e Soil Moisture indicator e VCI Vegetation Condition Index For each of these layers two kind of profiles are available e Annual data select a year press Apply and the data are recovered one value by decade each 10 days and displayed as a graphic e History of a decade select a decade month then day of the month press Apply and the history of the values taken by the index over the years is displayed as a graphic Other documents e User Manual PDF 34 Chapter 8 Advanced tools Geoportal for Risk Management for Gambia Release 2 10 3 1 e Editor amp Administrator Manual e Editor amp Administrator PDF 8 3 sill Temporal profiles 35 G
8. THE WORLD BANK KR Working for a World Froe of Poverty Geoportal for Risk Management for Gambia Release 2 10 3 1 Jean Pommier December 01 2014 Contents Preface 3 A new concept 5 Geoportal s layout 7 Sl Header panel a2 oe a he Ree RR RA wR Rae Had whe DE Gee ede HS 7 3 2 Central panel Interactive MAP ocios bo ee ea oe Ba A e 8 3 32 Lett panel the controlicenter gt s e sh miea SS be Sa ee da Ba a A 9 Building a map 11 41 Selectiovetlays 24 6206404848 veh beeen ed EXER SEES ew ew 11 42 Organizeoverlays 2 2 64 vad EPR ha ws Ca eg eR we Oa Sed a Pad we 11 4 3 Change the background Map xo iras ga eo ead Bada So we De aS 11 44 Manage an overlay e i e m e ma ek a kw i ee ee Pe ee pe ee Ba aE Bee 13 AD lt Addiother layers 4 5 es 6 5 a ee ee eS Ea Ae Bae Bo a ee Be 17 Using the map 19 a Sl ab a a y Zoom in zoom out pan the MaP o o 19 5 2 i Query layers ace hye ed du Be Ee ae ee e a a A 20 5 3 MeastninE es p ae se eat ae a eae a Gd Hate le oe a a a He de o 20 5 4 d gt ASTON che Ge ee we eek Ge ae Go Glee d ad es 21 5 5 SY Save restore the map ee 21 Printing 23 Onl Print taD see web ek a ee ee ee a te 23 Geo catalog 25 Tal Search orii espada a doe Pe de Panes Sekt waned ad a PE ew Sa A Ss 25 Ta RESUS tne eZ ane II A ok ee ee ee ede E Bd eee ne Bd 27 Woo HOOMMAES a ecr axe ae ein aoe E 28 Advanced tools 31 S1 E Polygon Query iega oeie a aig aa wh
9. ain to compare locally the Soil association map with the Land Use data Note Don t forget the curtains settings are persisted for this layer even if the layer is removed from the Organize tab It will reset only after reloading the page in the browser It is of course possible to reset the curtains manually by moving the sliders back to their initial positions Note The maximum number of layers one can compare using the curtains is 4 letting one layer for each quadrant It is even possible to use transparency to combine some more layers But this is an extreme scenario 4 4 4 Remove the overlay There are three ways to remove a layer from the map and from the Organize tab e Choose Remove in the contextual menu 16 Chapter 4 Building a map Geoportal for Risk Management for Gambia Release 2 10 3 1 e Select the layer and choose the E button from the toolbar on the top of the panel e uncheck the layer change tab and come back again Note This last solution uses the auto clean functionality of the Organize tab every unchecked layer is removed when one changes tab This allows to keep the Organize panel quite well ordered 4 5 Add other layers 4 5 1 Add an external WMS layer It is possible to add overlays from external cartographic services through the first button in the tab s toolbar Add WMS WMS means Web Map Service This tool allows you to look in a list of avail able servic
10. and is simpler than switching to zoom in mode 5 1 2 Pan Along with zooming in out it is necessary to be able to move the map Actually this is the default tool activated at startup Select O to switch to pan mode In this mode to move the map click on the map keep the mouse pressed and move the mouse Release when done 19 Geoportal for Risk Management for Gambia Release 2 10 3 1 a 5 2 L Query layers A a Select L to switch to query mode While in query mode click somewhere on the map to retrieve the layers values on this point Only queryable layers see Information about the overlay will be queried The query can take some time as it requests the information from the map server The result is displayed in a pop up window e on the left part are listed all the layers that have returned values Sometimes a same layer appears several times this means it returned several records often happens when querying on a polygon intersection or on a stacked group of points Sometimes a layer doesn t appear at all if it has no data at this place e on the right are displayed the informations data for the layer selected on the left panel Select another layer the informations will update accordingly The queried location is shown on the map using a marker Select Organize Locate Print Geo catalog a aa vmn mall Temporal Profies IF PD Animations 4 gt Q By O Vite je TS z F Featur
11. aphic criteria select extent e Relation type Vv Advanced Search Options Keyword Y Organization Category 7 id m When Spatial representation Scale Catalogue gt Options X Search 48 Search results Figure 7 1 Search form with advanced options unfolded The form in the Search tab gives wide means to query the catalog depending on relevant fields in the metadata sheets Each search field defines a specific search criteria that gets combined with the others 25 Geoportal for Risk Management for Gambia Release 2 10 3 1 The first form field with no label is a free search field and corresponds to the usual search field of a search engine like Google s for example The words entered in that field are looked for in the whole content of the metadata sheets Each sheet containing one of the word is selected as belonging to the search results This is just a beginning you can add more search criteria e Resource type most data are classified in Datasets Data series correspond to series like for example the whole set of topographic 1 250 000th scale maps The Service Web Map Services and Feature catalog are more rare and reserved to experts e Geographic criteria one of the ideas of geocatalogs is precisely to take into account the ge ographic positioning of objects Therefore we can deal with those information while searching for data Select extent by clicking on thi
12. d administrators e The language switcher the site is available in English and French e The help link gives access to some helpful links including this documentation 3 2 Central panel Interactive map eaan i A 1 1000000 v Figure 3 3 Central panel the map The central panel contains the map and most of its tools toolbar on the top scale and coordinates widget on the bottom right corner The map itself is interactive meaning you can move the center of the map zoom in or out add some overlays etc In default mode you are in pan mode if you keep pressed the left button of your mouse and move the mouse you will move the map The pan mode is activated with the hand button in the map s toolbar You can zoom in or out either by using the mouse s wheel or by selecting one of the zoom buttons just left of the hand button in the toolbar Using the zoom in button the one with the you can draw a rectangle defining the area on which you want to zoom Returning to the initial point of view is done using the Full extent button the first button on the left Returning to the previous zoom and back to the next can be done using the history buttons the blue arrow buttons You can even perform more advanced actions which will be detailed on Advanced tools Note A tooltip is available for each button on the map s toolbar it will show if you leave the mouse over the button for a while 8
13. e info 3 Sj Base layers gt OpenStreetMap Y Selected features Name Kiang West NP tbr O Bing Aeria Natural parks andreserv permeter 17 68 mies 3 Overlays E Land use Area 19 413 sq mi E Search results E Land use Ba E Natural parks and reserves Legend GB Bird Reserve QB Forest Park I National Park Nature Reserve Park Memorial 4 8 E Land use Figure 5 1 Both layers are shown as queryable in the Organize tab Querying on a place where both layers have data a polygon for the Natural parks layer returns one value for the Natural Parks layer and two for the Land Use layer must have fallen on a boundary between two polygons To quit the query mode you can switch back to pan mode 5 3 Measu ring The P button is actually a two fold button Clicking on the button itself will activate the Distance T Measurement tool But clicking on the ll icon just on the right of it will open a submenu to choose between Distance Measurement a or Area Measurement Ei tool Both tools work in a similar way 20 Chapter 5 Using the map Geoportal for Risk Management for Gambia Release 2 10 3 1 To measure a distance select P and draw the line on the map each left click with the mouse will draw a corner Starting with two corners it makes a line and the measure gets displayed A double click will end the measurement Measuring a surface is done the same starting with the third corner it makes a polygon and
14. enter some keywords Those keywords are only looked for in the words set as keywords in the sheets not in the whole content use free search field for this If clicking on the arrow on the right of the field a list of available keywords is proposed Auto completion is also available Organization you can restrict the search based on which organization owns the metadata Category GeoNetwork gives the possibility to attach given categories to the metadata This is a complementary approach to the keywords use You can restrict the search to certain of these categories When by default this fields set is folded thus invisible You can unfold it by clicking on the arrow on the left It is used to restrict the search on temporal criteria Metadata change date you can for example select all the data that have not been updated since at least 5 years Or on the contrary data published less than 1 month ago x Temporal extent same thing but on the data date itself as defined in the metadata sheet x The fields can be reset by clicking the any time check box Spatial representation allows to filter on the data type raster data text vector video etc Scale when checked a cursor allows you to set the scale extent to apply Catalog the geocatalog can perform what is called harvesting It can harvest other cata logs for example the FAO geocatalog that can contain relevant data for our purpose Th
15. eoportal for Risk Management for Gambia Release 2 10 3 1 36 Chapter 8 Advanced tools Index A Animation Control 31 B Background Layer 11 C Chart Layer 11 Control Animation 31 Curtain 16 History 21 Measure 20 Move 19 Pan 19 Polygon Query 31 Query 19 Restore map 21 Save map 21 Transparency 15 Zoom 19 Curtain Control 16 G Geo catalog 24 graphics 34 H help 8 History Control 21 L Layer 9 Background 11 Chart 11 Query 19 WMS 11 login form 8 M Measure Control 20 Metadata 24 Move Control 19 N NDVI 34 O Overlay 9 P Pan Control 19 PDF 21 Polygon Query Control 31 Print 21 Q Query Control 19 Layer 19 R Restore map Control 21 S Save map Control 21 Search 24 Soil Moisture 34 37 Geoportal for Risk Management for Gambia Release 2 10 3 1 T Temporal Profile 34 Transparency Control 15 V VCI 34 W WMS Layer 11 Z Zoom Control 19 38 Index
16. es or to add a new one you must know its WMS URL It then lists the available overlays associated to this service and you can choose a add some of them to the map 4 5 2 Add a layer from the catalog Its is also possible to add overlays from a search in the Geo catalog When overlays are attached to a metadata it is possible by clicking the icon to add them to the map This operation will be explained in the Geo catalog section 4 5 Add other layers 17 Geoportal for Risk Management for Gambia Release 2 10 3 1 18 Chapter 4 Building a map CHAPTER 5 Using the map Manipulating the map is mostly done using the mouse and the map s top toolbar 5 1 a a y Zoom in zoom out pan the map 5 1 1 Zoom Zooming in or out can be performed by simply scrolling the mouse s wheel It can also be done using the three first buttons on the map s top toolbar a will reset the map s position and zoom a switches the mouse in zoom in mode While in this mode it is no longer possible to move the map Click with the mouse to draw a rectangle The application will zoom the map the closest possible to this rectangle A single click no rectangle will zoom one level closer a switches the mouse in zoom out mode a mouse click will zoom the map one level farther centered on the click One last way to zoom in is to press the shift key click with the mouse and draw a rectangle This can be one while in pan mode
17. g licence restrictions So take care to put some data in lt the background for printing or you could get something ff like a white squared area a Title y Comment Layout A4 landscape MA Resolution 127 dpi 52 Scale 1 500 000 DA Angle o SN Lon 14627 e 3 669 Generate PDF 1 1000000 PA Figure 6 2 Print form on the left orange extent box overlaid on the map A Generate PDF button on the bottom triggers the document s production It may take a moment since the document s generation is made on the server and requires to process the active layers Then the browser should output a PDF file to open in a PDF viewer or save to the disk Note As stated in the Print tab Google and Bing backgrounds can t be used for the printing This is due to licence restrictions from those companies allowing the use for view but not for export print It is therefore advised to use another background OpenStreetMap works fine or any overlay that will cover the background 24 Chapter 6 Printing CHAPTER 7 Geo catalog This is the search engine for the Geoportal for Risk Management in Gambia It allows you to perform searches in the cataloged data As the time goes an increasing amount of data will be stored in the catalog making it a reference about Risk Management in Gambia 7 1 Search form Select Organize Locate Print Geo catalog Search form Resource type Geogr
18. is use the pause button lt moves to the previous image backward animation button loops over the images playing backward The animation will keep playing until you press the pause button or the forward animation button which will revert the play L pause button this will stop any animations in play 2 forward animation button loops over the images playing forward The animation will keep playing until you press the pause button or the backward animation button which will revert the play ii moves to the next image gt l moves to the last the more recent image If an animation is running it will move to the last image but will not stop the animation for this use the pause button 8 2 gt Animations 33 Geoportal for Risk Management for Gambia Release 2 10 3 1 8 2 3 Animation map layer When you start playing the images a new layer is added in the Organize tab with the dataset s name You can use it as any other map layer play on opacity curtain settings visibility reorganize with other layers etc If you close the animation window the layer is kept visible This allows you to use it without having to keep this window around If you want to remove the layer simply unckeck it or remove it right click choose remove Note Be aware that if you close the window while an animation is playing it will keep playing To stop it from playing open the animation tool again and
19. ng the legend For some layers scanned maps the legend is very large and will not be readable in the panel not large 4 4 Manage an overlay 13 Geoportal for Risk Management for Gambia Release 2 10 3 1 enough It is then possible to open it in a pop up window right click on the overlay and select Open legend in popup oy ee 3 Overlays Search results E E Soil association Legend 3 a E Elevation SRTM 7 Figure 4 5 Soil association layer comes from a scanned map Its legend is too large for an easy display The best way then is to open it in a separate pop up window 4 4 2 Information about the overlay Some icons on the right of the layer s name tell the user which information tools are available for this layer fa e L says the layer is queryable meaning you can use the Query tool on this layer F says the layer is enabled for the Polygon Query tool eM says some metadata are available for this layer They are just informative icons telling the user which actions he will be able to perform Then each of these actions will be trigged in their own way see further 23 Overlays Search results El E Road Network i M E E Population density in 2010 AFRIPOP i M 8 El Elevation SRTM An 8 E Topographic map Land amp survey 2005 fi E E Gambia GBOS i Figure 4 6 Here all the layers are queryable Population density and Elevation are enabled for Polygon Query and have
20. nting function allows to generate a PDF page with an extract from the map title comments and legend This PDF page can then be easily printed sent or integrated in larger documents GAM DRIS Gambian Risk Management Geoportal village Land Use on the Upper i a River Region i Extract of the Land Use map Natural Parks on the Upper River Region Background is OpenStreetMap GAM DRIS Gambian Risk Management Portal 26 11 2014 Page 1 2 Figure 6 1 Print output first page 6 1 Print tab Printing is controlled from the Print tab It contains a form in which you can define the title the com ments to incorporate and several parameters Simultaneously an orange square box should appear on the map It represents the extent that will be taken in consideration while printing The box automatically centers on the map center Its size is 23 Geoportal for Risk Management for Gambia Release 2 10 3 1 determined by the Scale field By default and when the map refreshes the portal tries to optimize the box s size to the current view Select Organize Locate Print Geo catalog a an i A jon Query pill Temporal Profiles f DJ Animations 4 gt Ey 9 Print Please note that this isn t truly a print page but a PDF page generator This PDF you can then print or save on your computer Warning Google and Bing based backgrounds will not show in the printed view This is due to Google Bin
21. opens a contextual menu with some actions available for this layer One of these actions is called opacity and opens a slider By moving this slider on can change the layer s opacity from 1 completely opaque to O invisible Note Setting the opacity to O invisible will automatically uncheck the layer It is important to 4 4 Manage an overlay 15 Geoportal for Risk Management for Gambia Release 2 10 3 1 remember it since unchecked layers are automatically cleaned from the Organize tab Curtain swipe controls Sometimes one want to compare two overlapping layers One way of doing this is to use the trans parency Another way keeping both layers full opacity is to use the curtain controls It works as if the active layer were a curtain folding the curtain leaves room to what lies behind Moving the curtain over the layer lets the user see on this cleared area the underlying layer Curtain control is available both for vertical and horizontal directions Open the contextual menu by right clicking on the layer position the mouse over the proper curtain horizontal or vertical and move the slider Select Organize Locate Print Geo catalog a a awi A willl Temporal Profies gt P Animations 4 BoM i Sj Base layers gt OpenStreetMap O Bing Aerial 33 Overlays E Search results 3 E soil association la E Land use Figure 4 9 Using the horizontal curt
22. ose harvested catalogs are also queried in the search Using this field you can choose to restrict the search to one or more catalogs e Options allows you to define display and sorting parameters for the search results display Finally but you don t have to fill all the field you trigger the search by clicking on the Search button 7 2 Results After searching in the catalog database the Search Form folds itself and gives place to the Results panel This panel lists the search results 10 by 10 Figure 7 3 Search results list Hovering a result with the mouse opens a tip showing the full abstract In the map the rectangles represent the extent of each result one color per result The highlighted one is the current hovered result 7 2 1 Results list Each result element shows 7 2 Results 27 Geoportal for Risk Management for Gambia Release 2 10 3 1 e A checkbox to select the result you can perform actions on selected metadata using the top tool bar s Other actions menu e The title You click it to open the full metadata sheet e The summary truncated if too large e The keywords list e A thumbnail if available Click it to open the large thumbnail e An icon list on the right telling you the additional feature of this data data to download geospatial data to display in the map web links Those icons are not clickable but just give you the information To go further you ha
23. putatblay density in 2010 AFRIPOP FB JE cambia e El cambia esos ea aao i A willl Temporal Profiles gt Animations 4 gt M Figure 4 2 Reorganizing the layers 12 Chapter 4 Building a map Geoportal for Risk Management for Gambia Release 2 10 3 1 seca organizo Locate Prt Geocatabs lT Q M Ez 2 Base layers OpenStreetMap O Bing Aerial Sj Overlays E search results O Regions GBOS i M a O Natural parks and reserves Bea O Land use a 0 ii BB Porvoon Query mil Temporal Profiles Fr P Animations 4 b Ey y myer E A ry it TH PR e i p a Fih y y 3 b y le Lada a gips Lon 16 594 Lat 13 459 4 15000 v Figure 4 3 OpenStreetMap background on Banjul Note OpenStreetMap images are easier to compress and will result in less bandwith requirements than Bing Aerial so if you have no need for Bing Aerial background you may prefer using OpenStreetMap Note Bing maps are not supported for printing licence issue The right background for printing is then OpenStreetMap 4 4 Manage an overlay 4 4 1 View the legend For most of the overlays there is a small downward arrow just left of the checkbox Clicking this arrow will unfold the legend underneath the overlays row Clicking it again will fold the legend a E water bodies i Legend M Lake Pond E River Sand Figure 4 4 Unfoldi
24. s button you can draw on the map an extent box for the search By default all data intersecting this box even partially will be selected This behavior can be changed with the Relation type list If not satisfied with the drawn box you can redraw it as much as you want You can remove the box by clicking the remove button To disable the Select extent button you can click on the hand button in the map toolbar it is attached to the same buttons toggle group WKT geometry this field grayed is not meant to be used it is more of a control field for advanced users Relation type it allows you to define the kind of relation assumed for the box The most interesting are Overlaps default choice All the data whose extent overlaps even partially the box are selected Encloses all the data whose extent contain the box are selected x Fully Outside of the data outside of the box are selected x Within selects the data whose extent is strictly within the box Sect Oraanze Locas deaag iA Sere Gambia x xY XK Soarch dh Figure 7 2 Advanced search using both geographic extent definition and some advanced options e Advanced search options this field set allows you to set more criteria more precise Be careful that by defining too much criteria you may end with no result 26 Chapter 7 Geo catalog Geoportal for Risk Management for Gambia Release 2 10 3 1 Keywords we can
25. s they come in the tree like structure Sometimes it will be good but most often this will not be the right order it will be necessary to reor ganize them This is the main purpose of this panel Reorganizing the layers is simple just click on the layer to move keep the mouse pressed and move the layer to its new place The place where it will be inserted is shown by a dotted line When in the right place release the mouse s button 4 3 Change the background map The default background map is a Bing Aerial map It is possible to change it for OpenStreetMap back ground The background choice is in the Base Layers folder in the Organize tab 11 Geoportal for Risk Management for Gambia Release 2 10 3 1 Select Organize Locate Print Geo catalog Q a a y fi FA willl Temporal Profiles P Ol SS Base layers gt OpenStreetMap O Bing Aerial 3 Sj Overlays 6 Search results E El Colleges GBOS 2013 E El specialised schools GBOS 2013 8 El Population density in 2010 AFRIPOP FA El districts GBOS i M E Gambia GBos Figure 4 1 Layers stacked as they come administrative boundaries are hidden underneath the Popula tion opaque layer Select Organize Locate Print Geo catalog O M Qj Base layers OpenStreetMap O Bing Aerial 83 Overlays a Search results E El colleges GBOS 2013 8 e El specialised schools GBOS 2013 e E Districts 6808 i 3 amp E Po
26. tandard query tool only allows to perform punctual queries While this satisfies many needs there are some cases when you want to collect some information on a surface rather than on punctual locations Say for example you need to know how many people live in a given area at risk Or you want to know the lowest or the highest elevation in this area You will not do this using punctual queries You will use this new polygonal queries tool This tool will be available for only specific layers You basicly have to select one of those layers draw on the map the polygon defining the area you want to query and get the results 8 1 2 Identify suitable layers This is done in the Organize tab left panel suitable layers have the a icon see Information about the overlay Selecting a suitable layer mouse click on it should enable the Ed Polygon Query button on the map s top toolbar 8 1 3 Use the Polygon Query tool Click on the Ed Polygon Query button on the map s top toolbar it will switch the mouse to Polygon Query mode and open a window on the left with some informational text but no data yet Then draw a polygon on the map each mouse click will add a corner a double click will close the polygon and trigger the query This then may take a while for the server to compute and return the data The data is then displayed on the bottom part of the window Draw again a new polygon close it by double click and the result will upda
27. te accordingly To quit the Polygon Query mode switch back to another too in the map s top toolbar say the Pan mode for example 31 Geoportal for Risk Management for Gambia Release 2 10 3 1 GAM DRIS Risk Man QAQA D fi Erone meo I EAT 5 S Y We A the re O Big Aerial Query tool in the map s toolbar ai The Poygon Query toolis currenty atve Gi search resuts anes The window pops up Bi Gambia 680S 8 E E Population density in 2010 AFRIPOP ip 1 This icon tells us that Population density if enabled for Polygon Query LEENE a 1 1000000 Y Figure 8 1 Using the Polygon Query tool 8 2 P Animations Some data are meaningful only if one can browse them in their temporal dimension The Temporal Profiles tool gives one way of exploring these data Another way is to play animations Like it is usually done with cloud weather data A player has been implemented for such use the animations tool Each dataset that can be used with this tool is configured by an Administrator The portal User can select the dataset to animate load it and play the animation either backward or forward or step by step 8 2 1 Activate Animations tool One can activate the tool by clicking the P Animation button in the map s top toolbar a aW ip qa pee ee Animations ax 1 Open the fess Animations tool 2 The tool s window opens Select the dataset you want to animate Here onl
28. the measured area gets displayed QIAA Povon auey il Temporal Prones P Animations 4 gt Q By a Figure 5 2 Measuring the covered area of a river floodplain area on the Soil association overlay 5 4 4 b History Using the arrows buttons 4 and b you can go back forward in the previous zoom views a bit like the history arrows of a web browser 5 5 SY ES Save restore the map You can save the map configuration for further reload It allows you to suspend a working session and restore it later in order to get back to where you were last time Or to send the file to a colleague that could restore the same environment you were working in This is done using WMC Web Map Context protocol This is a standardized way to store a map s composition Saving is done using the SY button It will offer you to save a file with a cml extension This is the file that will contain all the necessary information to further restore the map s composition Save it somewhere on the computer or send it to the persons with whom you want to share the map Restoring the composition is done using the button selecting the file on the computer and pressing Load button Choosing Merge button would add the layers in to the current map Load will replace the current map with the saved one 5 4 d b History 21 Geoportal for Risk Management for Gambia Release 2 10 3 1 22 Chapter 5 Using the map CHAPTER 6 The pri
29. ve to pass by the complete metadata sheet click on the title On the right border a colored line tells you what color is used for the extent as drawn on the map This way you can visually identify the result s extent on the map When hovering a result its extent is made brighter On the bottom right the referent organism is shown if available When hovering the result for a while a tooltip is shown It contains the whole summary Finally double clicking on the result entry positions the map on its extent Detailed Post Harvest Assessment The Gambia 20 December 2011 2 January 2012 EJ FE View mode gt Actions A Mge Figure 7 4 A metadata sheet 7 3 Toolbars 7 3 1 Top toolbar The top toolbar allows you to e Sort the results based on a different criteria 28 Chapter 7 Geo catalog Geoportal for Risk Management for Gambia Release 2 10 3 1 e Select unselect results e Perform actions on selected results For simple visitors the available actions are mostly limited to exporting data in several formats If logged in other actions are available such as edition duplicate metadata set privileges etc 7 3 2 Bottom toolbar It gives you control over the results pagination 7 3 Toolbars 29 Geoportal for Risk Management for Gambia Release 2 10 3 1 30 Chapter 7 Geo catalog CHAPTER 8 Advanced tools 3 1 E Polygon Query 8 1 1 Presentation The s
30. y Eumetsat meteo data is available Figure 8 2 Open the Animations tool select the dataset to animate A window pops up You first have to choose the dataset you want to animate and then load it click on the Load button A progress bar will keep you informed on the loading status all data have to be loaded before you can start playing the animation This allows for more fluidity afterwards 32 Chapter 8 Advanced tools Geoportal for Risk Management for Gambia Release 2 10 3 1 If you load the dataset for the first time it may take some sime Afterwards it should be quite straight forward since the data are cached in the browser When the dataset has finished loading the second half of the window gets accessible the player part composed of e A slider telling you where you are on the dataset It starts on the last image for meteo data the current meteo e A field telling you the date associated with this image e A row of buttons for animation control You can play the animation either by moving the slider or using the animation control buttons E Eumetsat meteo animation Animation ready for play Animation layer Figure 8 3 Data is loaded the animation layer is added in the Organize layers list 8 2 2 Animation control buttons This is a 7 buttons row Is moves to the first oldest image If an animation is running it will move to the first image but will not stop the animation for th
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