Powerwarp Userguide - Product Documentation
Contents
1. EIE 11 LIII FIOR FIOR A Make sure that after the function points of the grid do not end up on top of each other as the warp module can not handle grid points lying on top of each other Grid elements should always be quadrangles not triangles Therefore it is advisable to make the shape slightly bigger than the grid Wrong e Compensate will create the compensated path for the selected path for Sleeve warping See 10 Printing on shrink foil on page 32 p 10 Distortion Defines the Distortion Percentage for Fit to Path V 100 50 200 The distortion indicates the ratio between the vertical size of the lower grid element and the vertical size of the upper grid element The vertical size of the elements in between will be equally spread In the example above you can see that at a distortion of 100 all grid elements have the same vertical size At 5096 the topmost element is half as high as the bottom element At 20096 it is double the height Undo Grid This will undo the last changes made to the Grid Keep in mind that the regular Undo function does not affect grid cha2. UOCE mu ausus on Pista EE CER E err IGI uu gases aas leet qas ee CEE EEEE EE aie ec E LEE T ELI Sr EET ER sees gees peel ee oA top TETTE PERE EEE 555 6 BES let ed 8 299 C Pita ps TES ER der Ge 2551969196 ee CONG COCOS PERE EEE EEE EEE EEE EH 29 QNS 555466 itd da tal odd 555555555566 Hee ee EENE EE RES EEE IR SSIS 55555596505 EIL TIT 555555555 E35 979999 09 01 0 999 9 09 99 ER 95 959 99 Ee EE OST feche 64 ed EE ER EE SINCE D wl iD mi e 5 Hoste at a p 29 9 Cardboard Cone Cups Cardboard Cone Cups can be warped using a circular grid Just lik
3. IH PEE rM s EN LAWL P Pl 4 M W E ed Lees d PowerWarp on ArtPro 8 6 p 46 12 Appendix 12 1 Grid File Formats The coordinates should be defined in an ASCI file The coordinates can be separated by a blank space a tabula tion or a carriage return The grid files are normally created with a spreadsheet but they can be typed in a plain text document too There are 3 ways to define a grid based on a normal grid normal or transpose grid or based on a parallel grid The normal grid allows for more possibilities since it can have any shape For parallel grids the grid must contain parallel lines only A grid file should contain e ArtPro Warp File V1 0 Unit millimeters or inches can be used MM or INCH Width indicates the number of horizontal grid points Height indicates the number of vertical grid points e Quadrants indicates the number of quad rants the full grid consists of In this way it is possible to de 7st SUE scribe for a regular grid only a quadrant quadrant part a half or a quarter of the grid needed it will be mirrored Ath Sr horizontally to the right 2 quadrant quadrant Quadran
4. x Locality 1096 E E ee 4 Y 9 1 75 e i mt ur Pd 2 UST x Locality 5096 1 S C 4 ty E 1 a P gom 1 pu i 3 x Locality 90 x Locality 90 p 9 PowerWarp on ArtPro 8 6 How Same Direction Same Waypoint Locality any 25 points were selected the original location of the point clicked on for moving is marked destination is marked o Same Direction If Locality is switched off and How is set to Same Waypoint several points can be moved together without any side ef fect Same Waypoint The lower the Locality percentage with Same Waypoint the bigger the movement will be of most points Grid points which are closer to the point that is being dragged with the cursor will always be moved more Locality being switched off is more extreme than Locality of zero percent PowerWarp on ArtPro 8 6 e Fit to Path H V When applying this function the grid selected in the Which popup dialog source grid or destination grid is scaled hori zontally or Vertically to fit into the selected path see picture The size of the cells is not influenced in the other direction TESTI
5. PEAT EEEH E A HEHHE Fee HH HHHH LLLIILLLLLLLLLL ITUNES HHTHH EHHH In EEE Bee ett ROCCO A RO REET HHHH EH EE UH HHT mun us ELIT TTE aV ex 697 S HAT 69007 5 CHEER LP nnn EEE P 5 a HHHH SLELEELELEEELELI ESSERE 2442 22222 SS eee oa TS or grid consisting out of 4 quadrants PowerWarp on ArtPro 8 6 49 12 4 Symmetrical grids in ArtPro If you know that you will be working with Partial grids in Artpro 8 x you should make sure that your grid is symmetric In ArtPro 9 0 this will be done automatically when creating the grid uS Fin Ped es 4 ERKENE inq X y VN Iw PW 457 jx 2 T i ree eae Y X 4 t lt P t Jii NX gt d NJ StH v e Create Grid EB Complex Source Section Density 7 Height 20 mm Width 0 mm Destination Section Height 20 Baseline at D 96 Mirror No Arc
6. Radius Angle to make sure that the de formed printed grid of the master cup would not cover the side of the cup Link Values completely There will be quite a big overlap but by adding two horizontal ref erence lines where the ideal top and bottom of the cup height should be you will be able to position the job correctly after wards by putting it in between these two reference lines on the source grid e Radius radius of bottom flat part of the can 10 Angle 90 p 17 e Angle 360 degrees Density Source E 11 Height Source Width Now check the Link Values checkbox This will calculate the corresponding width explained in the technical appendix Calculated example h original height of the cup e g 100 mm original radius of the cup e g 50 mm a addition to the height of about 1096 PowerWarp on ArtPro 8 6 source grid towards their new position as displayed by the newly calculated height h a a 120 h Scan e g 120 mm based on the previous values newly calculated radius 10 h e g 40 mm based on the previous values Save the grid Make a printout of this grid on the substrate Do not forget to put a reference point on the circular grid somewhere on the i left horizontal line of the circular destination grid This is neces sary for positioning
7. the top left of the selected artwork click the Warp but ton in the Grid Warp dialog box to start warping the se lected items towards the destination grid TIT HAHA Finally the resulting source grid will look like this p 15 PowerWarp on ArtPro 8 6 4 3 Examples 4 3 1 Grid example Source Grid 4 3 2 Artwork example Source Destination PowerWarp on ArtPro 8 6 p 16 5 Metal Cups Cans and Drawn caps The technique explained below is similar to the blister pack one 5 1 Production workflow print the job on the flat substrate metal the substrate is then shaped drawn into shape this gives the final result where the image should look normal not affected by the shape of the object With the warp module we will have to invert the deformation caused by the machine that is stretching the substrate 5 2 Grid creation for round Metal Cups and Drawn caps First create a basic grid with Create Grid Circular e Eg eon co circular he source grid will be rectangular and the desti Source Section nation grid will be round Density 3 mm ed Height 4n mm Width 100 mm e Density 3 mm to 5 mm e Height source and des Destination Section tination height of the can Height 40 mm 2026 Baseline at Adding 10 on both sides of the height is necessary Use
8. Oversampling If oversampling is on the CT s calculated for the warped vi gnettes and images will be calculated at a higher resolution and then downsampled to the defined resolution This will re sult in a smoother image and gradations e Resolution for Gradients This parameter defines the resolution used when images in ternal CTs are created for gradients during warping Internal images are created when vertical horizontal or circular gra dations and multistep gradations are warped e Noise for Gradients The Noise for Gradients option allows to apply noise to a gra dation when creating an image This noise allows to avoid banding in the gradation PowerWarp on ArtPro 8 6 2 3 Grid Options e Grid Warp Load Grid Full wam Current Create Grid show Grid Grid Full save Grid in Inch i JF Erase Grid Grid ta Paths 1 Grid Editing Which Source Grid FE How Same Direction Locality f Fit to Path Compensate Path 3 9 Modify Tool FittoPath V Distortion 100 Undo Grid Compensate Color 2 3 1 Grid Options Create Grid Will open a new dialog box for the creation of grids see 3 Grid Creation on page 12 Show Grid this is a toggle to switch the grid visualization on or off Save Grid Enables you to save a grid you have created or changed as an ASCII
9. Powerwarp Userguide TP Table of Contents Introduction 7 Drinking Cups 1 Procedure amp Conversions 8 Rounded Cardboard Box Iso PTT 5 1 2 Gridwarp 5 9 Cardboard Cone Cups 9 1 Grid creation 30 2 Dialog Box Overview 9 2 Grid 31 TTE IIT DOTT 6 9 3 Conversion Formulas 31 2 2 Waro s n i o 6 e CC 8 10 Printing on shrink foil 2 81 Grid QOUONS 04 05 tuam ERROR rt me 8 10 1 When to use Sleeve 32 2 92 GNC uar ciat 8 10 2 Design for Shrink Sleeves 32 10 3 Production workflow 34 3 Grid Creation 10 4 Sleeve Mode amp Sleeve Mode options 36 3 1 Grid Creation principles 12 3 1 1 Basic grid 12 11 3D View grid Gh Gere uice i 11 1 Generating 39 3 1 3 Sleeve 12 39 Printi id 13 112 aura durata st cidem wu ed qti 40 M 9 40 3 3 Basic Springs T 13 11 2 2 Close 40 3 3 1 Density 13 11 2 3 Rotate 180 40 3 3 2 2 2 4 13 11 2 4 Use selecti
10. done during production Now you have your master blister pack a 4 12182892 5772242822 BE 12 ZA 25 esana 6304 gt gt p 14 This is a small shaped ob Use the Modify Grid tool for moving every point to its new po ject that can be placed sition based on the underlying scan flatbed scanner to get a dig ERG ital image from the de formed grid This image will be used for the manual deformation which will be explained in detail more next When the scan is placed in a new document load the grid that was printed for de formation Position the scan in a way that as many un warped points as possible are lying on top of their cor responding points on the scan note for the pictures underneath 50 black is the TIFF of the scanned grid the small 100 black lines are the grid lines J 9 2 N y J LILLL LB LE LE men a B This tiff file is obtained by scanning the blister object Now you will be able to use HHHH 17 this grid by loading it when ever you need to warp this type of blister pack ZELLE 11 17224 Open a job containing all artwork position the ruler at
11. load them one by one select the right part of the design on the source grid and warp Place the Ruler in the middle of the destination grid and rotate the warped result as many times to fill the complete circular form Before loading the second grid make sure that the ruler is placed on the right position with center on the top left corner of the source grid PowerWarp on ArtPro 8 6 p 24 7 Drinking Cups There is more than one technique for printing drinking cups It First create a basic grid with Create Grid Conic mostly depends on the material that is being used for the cre ation of the cups cardboard which is printed flat and is folded afterwards into the right shape and plastic cups which are be n CS ing printed after the cups are shaped This last technique is Ex 0 done by printing all colors on one rubber sloping block which ma is located in the printing system The cups are then rolled against this rubber block letting the ink being transferred upon Large diam 0 mm the plastic surface Small diam 0 mm The source grid will be rectangular and the destination grid will be a segment of a rounded grid Density 3 mm to 5 mm e Height do not measure the vertical height of the object but place the ruler on the object itself for measuring the sloping side e Larger diameter top diameter of the cup e Smaller diameter bottom diameter of the cup E L
12. stretched or shrunk when warped onto the destina tion grid The density has an influence on the speed of the warp calcula tion A Density ranging from 3mm to 5mm is advisable for most grids Circular grids might need a lower density value if the seg ments of the circular parts are not smooth enough The Width and Height of the grid should be big enough to cover the object maybe even with a surplus of a few cells on certain sides 3 3 2 Height Measure the Height Therefor do not measure the vertical height if the object would have a sloping side but place the rul er on the object itself for measuring the slope side 3 3 3 Width The value that has to be filled in for Width is not always exactly the width but depending on the object it could be the value from the circumference or inner circle on the technical drawing Since the basic element of the grid is one cell it is recommend ed to fill in values for both Height and Width which are dividable by the Density value Otherwise the grid cells will be adapted in size automatically when the grid is created and this could be annoying for measuring afterwards For sleeves the grid should be the size of the sleeve without the overlap 13 PowerWarp on ArtPro 8 6 4 Blister packs 4 1 Production workflow 4 2 Grid Creation print the job on the flat substrate plastic the substrate is then shaped heated stretched into a shape this gives the final r
13. the multiples of 70 mm lying near to 502 65 are 490 mm repetition 7 times and 560 mm repetition 8 times As Baseline is linked to the source Width this means that when filling in those new source Width values ArtPro automatically calculates the corresponding Baseline value For 490 mm this becomes 5 03 and for 560 mm 22 82 If we choose the first possibility the design lying closer to the inner circle will have minimal deformation choosing the second possibility we will have minimum deformation at 22 82 meaning at radius distance 80 22 82 x 40 89 128 mm We will choose the second value This means that after warp ing we will have to rotate the result 8 times to fill the complete circular plate PowerWarp on ArtPro 8 6 Rotate 10x over Rotate 6x over Rotate 7x over 360 10 degrees 380 8 degrees 360 7 degrees 0940099 mM EET A Using the same method we calculate and generate the grid for the other two parts the middle part and the upper part For the middle part we would like to have the Baseline at around 50 Filling in this value gives us a source width of 628 32 mm Changing this to 630 mm multiple of 70 gives us a new Base line at 50 6796 which is very close to what we want For the last part we want a value around 90 this gives us a width of 728 85 mm The best multiple of 70 here is 700 mm giving a new Baseline at 78 52 When the grids are created
14. Ange E Arc Angle 10 mm D 40 mm 90 40 0 40 90 In this example you can clearly see that on the right side the number of parts is an odd number resulting in a non symmet rical grid This means that in this case you can not divide the grid in 2 parts However if this situation occurs it is very easy to force this grid to a symmetric grid To get around this problem simply split the right straight part into 2 equal parts In this example we split the straight part of 20 mm indicated in red into 2 equal parts of 10 mm The result is now symmetric and the grid can be divided in 2 parts Of course you need to do this before you start editing the grid PowerWarp on ArtPro 8 6 40 90 40 mm D 40 mm 90 10 mm D 0 mm 0 f Link Values f Create Grid Baseline at D 96 Mirror AA Use Arc Angie Angle 10 mm D 40 mm 9D Link Values p 50 12 5 Formulas of Link Values The following are formulas which explain the relation between the parameters from the Create Grid dialog boxes Source width R x 2 x angle 180 x pi with angle in degrees Inner Radius Baseline at 100 x Destination Height Having a relation between parameters means
15. Fewer design elements can be placed in that area Also note that as the design is not rectangular this can limit the possibilities to use background images This can howev er be avoided by not compensating the background image and place it undistorted on the sleeve resulting in a distorted image after shrink Compensate or don t compensate When you create a design for a sleeve it would be fantastic if the designers could define which elements would need to be compensated for distortion and which wouldn t or put differently which elements are superior or inferior to the de sign This would guarantee your design being produced as you had it in mind and it would make life for the pre press de partments much easier Often designs include vertical columns patches to differen tiate important areas like nutrition panels These column like areas make it hard to decide if you would need to compen sate or not as this is a matter of personal opinion The images underneath give a good example on the left hand side the nutrition panel was not compensat ed for shrink on the right hand side the panel is compensat ed correctly p 33 However in relation with other elements the well compen sated straight panel does not look so perfect any more see on the right This proves that the decision to compensate or not will even tually depend on your own preference and can change de pending on the design itself Therefo
16. circumference are stretched and do not look like the original design anymore when trying to copy rotate the resulting warp a number of times to fill the complete plate we find out that the beginning and end do not match the elements overlap with an unaccept able deviation The solution to all this is the use of the Baseline at parameter It defines what height the grid baseline should be set at This is the section of the grid where the least amount of deformation will occur or where the warping is not extreme in such a way that the result would be misformed and unacceptable The value of Baseline at is a percentage of the height value where 100 is the top of the source grid and 0 is the bottom of the source grid as shown below 096 We also see that when changing this parameter the width of the source grid is changing too This is easy to understand as objects on the outside of the circle having the same length as the original objects at Baseline 10096 the width of the source grid will be the length of the outer circumference p 22 In the example below we used one grid without changing any thing to the Baseline at which is by default set at O96 H o 6 X e v 4 2 gt 4 Using a Baseline at 10096 will make the objects the outside look like the original objects but then objects lying on the in side will have maximum distortion in this case a compres
17. for Gradients 7 O Oversampling 7 P Path fit to path 10 Print printing a grid 13 Procedure 5 p 58 Q Quadrants 6 8 47 R Radius 13 Hesolution for CT 7 for gradients Heverse Warp 6 Hounded Cardboard Box 27 S Save Full 1 2 1 4 8 save 3D view as movie 41 save 3D view frame as tiff 41 save grid 8 save grid in inch 8 Show Grid 8 Shrink foil see Sleeve Sleeve 32 design for sleeves 32 sleeve grid 12 sleeve mode 7 36 warping text 37 when 32 Slices 40 42 Spring Mass Models 43 System requirements 4 T Text sleeves 37 warping text 5 U Undo Grid 11 View 3D view 39 Visualisation show grid 8 W Warp 6 keep original 6 reverse 6 Warping conversion 5 Waypoint same direction same waypoint 10 same waypoint 9 Width 13 PowerWarp on ArtPro 8 6 Artwork Systems Group N V EskoArtwork Kortrijksesteenweg 1095 9051 Gent Belgium Tel 32 9 216 92 11 Fax 32 9 216 94 64 info artwork systems com AWSG Limited Mary Rosse Centre Phase 11 Holland Road The National Technology Road Limerick Ireland Tel 353 61 33 61 36 Fax 353 61 33 68 33 info ie artwork systems com Artwork Systems S A Paris Nord II 47 All e des Impressionnistes BP 52335 Villepinte F 95941 Roissy CDG Cedex France Tel 33 0 1 48 17 00 90 Fax 33 0 1 49 38 09 78 info fr artwork systems com Artwork Systems Inc 219A Rittenhouse Circle Bristol PA 19007 USA Tel 1 215 826 4500 Fax 1 21
18. from the source grid to the destination grid This same button is used to perform a reverse warp check the Reverse Warp checkbox and select the objects that are located on the destination grid to warp them back to the source grid See also e Reverse Warp on page 6 ECL ERE ES T EE GE SE 11212141 ERIS Load Grid If a grid was saved before it can be loaded after clicking this button The source grid will be positioned in the lower right corner of the ruler After loading a grid file you can start editing the grid but the grid file remains untouched unless you save and overwrite it Full 1 2 1 4 x2 x4 When set to the grid will be read as specified in the grid file It will also use the quadrant parameter specified in the file See also 12 1 Grid File Formats on page 47 The main factor to determine the outcome of partially 1 2 or 1 4 loading a grid is the number of segments in the original grid If the number of segments is a multiple of 4 or 2 a quarter or half of the segments of that grid will be loaded In the other cases the resulting number of segments will be 1 4 or 1 2 of the original and an extra segment is added created in such a way that the width of the saved source grid will be exactly 1 4 or 1 2 of the original source grid When multiplying the loaded grid the grid as defined in the file will be treated as a q
19. grid Slices with a start position point outside of the grid will be ignored COV EIU The vertical position of the Start position point will be round ed to the nearest grid position and define the shape and ma terial properties of the grid at that point The slice will be scaled internally so that the circumference of the slice matches the width of the grid at that position This means the original size of the slice does NOT have any influence on the result The design will then be wrapped counter clockwise around the slice starting at the Start Position point The different Slices will be positioned at their vertical location and placed with their center of gravity exactly above each other The illustration underneath shows the original slice objects in ArtPro original a 3D representation on how they are placed on top of each other 3D and a top view You can clearly see the center of gravity gray square of every object is placed on top of each other The Start Position point is indicated in red original Top View C In between these slices the shape will be extruded from one slice to another using the Stretch Shear Bend and Pres sure values Above the top slice and below the bottom slice there is no spring mass model applied C 7 C Horizontal Spring Mass Model To create a Horizontal Spring Mass Model the slices need to be placed above or below the chosen grid The start posi
20. latter case the mathematical result will be less accurate e Shrink foil or sleeves Based on a rectangular grid using Sleeve Mode See 10 Printing on shrink foil on page 32 p 12 3 2 Printing a grid 3 3 4 Angle For circular grids or circular parts of complex grids the circular To print a grid part is defined by the angle and the Arc or the Angle and the Load a grid or create one e click the Grid To Paths button in the Gridwarp dialog e While the paths are still selected use the Stroke function C lt t and the Paint Style i to define the line thick 3 3 5 Arc Radius ness and color When defining a circular grid e Print the job p or a circular part of a complex grid you can choose to de 3 3 Basic settings fine it by Arc length or by Ra dius This will always be the Inner Radius or the Inner Arc length uninfluenced by the Baseline At setting Some basic settings will be explained more into detail and in general first because they will be available in the Create Grid dialog boxes of almost any grid type 3 3 1 Density the value from this field defines the width and height of a single cell from the grid Such a square shaped single cell is the basic part of a grid and defines four points in the source grid that cor respond with four points in the destination grid Based on these four points the item within the cell from the source grid will be deformed
21. source or destination grid on a man ual basis In the Which pop up menu you have the choice be tween Source Grid and Destination grid Only one can be edited at the time Click the Modify Tool button and use this new cursor to select the grid points that have to be moved f you need to move one point at the time it is very easy by clicking on an unselected point you can drag it to the de sired location without having to click a second time e Several points can be moved by clicking and dragging a rectangle that covers those points or use the shift key and click to select multiple points To move click on one of the selected points and drag in the desired direction The way several moving points behave during the movement depends on the How and Locality set tings in the Modify Grid dialog box These options are de scribed next In case of a misplacement you can always return one step by clicking the Undo button in the Modify grid dialog box Which The Which setting allows to define if you want to modify the Source grid or the Destination grid e How Same Direction How Same Waypoint x Locality 10 50 90 x Locality 10 50 90 25 points were selected the original location of the point 25 points were selected the original location of the point be clicked on is marked the destination is marked o ing clicked on for moving is marked the destination is M NONE marked o
22. text file This is the grid format which can be loaded afterwards Details about the structure of such grid file can be found in the appendix Full 1 2 1 4 If a grid is saved you can choose whether the grid should be saved completely Full or partially 1 2 or 1 4 The main factor to determine the outcome of partially saving a grid is the number of segments in the original grid If the number of segments is a multiple of 4 or 2 a quarter or half of the segments of that grid will be saved In the other cases the resulting number of segments will be 1 4 or 1 2 of the original and an extra segment is added created in such a way that the width of the saved source grid will be exactly 1 4 or 1 2 of the original source grid However if you know that you will be working with Partial grids in ArtPro you should make sure that your grid is sym PowerWarp on ArtPro 8 6 metric See 12 4 Symmetrical grids in ArtPro on page 50 for more info e Save Grid in Inch Forces the Grid file to be saved with Inch as unit instead of mm see 12 1 Grid File Formats on page 47 e Grid to Paths Will make an exact replica of the grid as paths The paths will be put in a separate layer called If a stroke is created based on these paths it enables you to print the grid e Erase Grid Will erase the virtual grid the paths in the Grid layer will stay 2 3 2 Grid Editing e What A tool to edit either the
23. that certain com binations of values are not possible Therefor when filling in some values with the option Link Values on other values may change automatically using the above formula We describe in detail what parameters are adjusted automatically e Angle Will update the Source Width Will also force Source and Destination Height to the same value if the Baseline at pa rameter is not zero Source Height Will update the Source Width No changes will appear if the Baseline at is zero Destination Height will also be set to this value Destination Height If this value is different from the Source Height the Baseline at parameter will be forced to zero Source Width will be set to Radius x angle Source Width Will update the Radius if this version is still zero If the Radius already has a value then the Baseline at percentage is up dated Radius Arc length Will update the Source Width value Baseline At Will update the Source Width value Will also force Source and Destination Height to have the same value if Baseline at is set to zero 51 PowerWarp on ArtPro 8 6 Index Numerics 3D View 39 export 41 spring mass models 43 using slices 40 42 A Angle 13 Arc 13 Baseline 22 Blister packs 14 C Cans 17 Cardboard Box rounded cardboard box 27 Ceramic flat ceramic printing 22 using the baseline 22 Color compensate 11 Compensate 10 compensate graphics for sleeves 32 path co
24. the lo cation of the Artwork on the cup p 42 11 4 3 Spring Mass Models To make realistic 3D models of deformation of materials like paper a spring mass physical model has been implemented The spring mass model is only used if more than 1 slice is ap plied and in combination with a rectangular grid although warping is NOT used here Slice Material Properties e sling Material Prope ties stretch 2 100 0 8 Shear 100 0 g 96 Bend 109 0 Pressure 2 0 B The Slice Material Properties define how the material will be have The Stretch Shear and Bend properties allow to define how strong the force will be to stretch shear or bend the material between two slices The values range from O rubber balloon to 10096 paper pressure defines the pressure inside the volume be tween the slices In between the different slices the stretch shear and bend properties of the material will be the linear average of those of the adjacent slices The pressure will be the square root of the product of the pressure values of the adjacent slices Vertical Spring Mass Model To create a Vertical Spring Mass Model the slices need to be placed next to the chosen grid as it is for slices with cups see above The start position of a slice is the top center of the slice This Start position point needs to be positioned vertically between the top and the bottom of the
25. top drawing showing the result of unwrapping the cone cup or in a 3D model bot tom drawing Here are some formula s that can be used e Formulas for the angle m Z x 180 e Formulas for hee 2 2 pue 4 g 4 180 PowerWarp on 8 6 10 Printing on shrink foil 10 1 When to use Sleeve warping The method for shrink sleeves is only valid for circular symetric bottles It is based on the assumption that the shrinking is done equally all around the bottle As explained in 3 1 3 Sleeve grid on page 12 this can depend on the shrinking method For non circular but symetric bottles the same method as for circular bottles can be used but the accuracy can not be guar anteed Again it will work if the shrinking is equal all around the bottle but for non circular shapes this is less obvious For non circular non symetric shapes it is not advised to use sleeve warping as the result would be unpredictable 10 2 Design for Shrink Sleeves Why compensate graphics for sleeves A small example will illustrate why pre press specialists must pre compensate for shrink Let s imagine we will print a round apple on a sleeve of a bottle of apple juice When the apple is positioned on the sleeve where the shrink is relatively small e g in the middle the apple will retain its round shape more or less When you print the apple somewhere on the top of the bottle where
26. 5 826 4510 info us artwork systems com ArtPro 8 6 Copyright 1992 2008 Artwork Systems N V All Rights Reserved Artwork Systems Ltd The Business Centre Edward Street Redditch Worcestershire B97 GHA United Kingdom Tel 44 0 1527 592550 Tel 44 0 1527 592466 info uk artwork systems com Artwork Systems GmbH amp Co KG Burkheimer StraBe 3 D 79111 Freiburg Germany Tel 49 761 452 980 Fax 49 761 452 98 22 info de artwork systems com
27. 8 6 ArtPro Warp file V1 0 Unit MM Width 8 Height 5 Quadrants 2 begin 000 100 200 300 400 100 10 10 10 20 10 30 10 40 20 0 20 10 20 20 20 30 20 40 30 0 30 10 30 20 30 30 30 40 40 0 40 10 40 20 40 30 40 40 end begin 001 103 204 306 10 0 11 10 12 20 13 30 20 0 20 10 20 20 20 30 30 0 29 10 28 20 27 30 40 0 39 10 37 20 36 30 end 12 3 Grid Examples grid consisting out of 2 quadrants 4 TRANSPOSE begin transpose 0 0 9 870384 0 0 11 88297 0 0 14 17188 0 0 3 550527 10 02627 3 656031 12 02571 3 736952 14 28764 7 280231 10 3744 7 522388 12 3679 7 680264 14 61256 PARALLEL ArtPro Warp file V1 0 Unit MM Width 25 Height 18 Quadrants 4 begin parallel 0 0 3 0 6 0 9 0 0 0 3 0 6 0 9 0 end PowerWarp on ArtPro 8 6 p 48 S TTTITIITTITTIITD amp Soe Sooo wae Toco i Sooo corer LEEEREXG eee eee ee HHHH CS TA T SN SN NS HHHH TIL ooo o HLT SECA SEE
28. 9 he 9 Rex esr EE 48 12 4 Symmetrical grids in 50 12 5 Formulas of Link Values 51 PowerWarp on ArtPro 8 5 Introduction I Definition The Gridwarp module is a powerful and professional utility that allows technical and free deformation of line art text and imag es Copyright Copyright O 1992 2008 Artwork Systems N V All rights re served Artwork Systems ArtPro Artworker and ArtPrinter are trademarks of Artwork Systems N V These notes may not in whole or in part be reproduced in any form by print ohotocopy microfilm or any other means with out prior written consent of Artwork Systems N V PowerWarp Requirements PowerWarp as described in this manual is an additional mod ule of ArtPro The Contone module or ArtColor module for im age editing on pixel level is mandatory for warping non flat color objects IV About this User Guide This user guide is an addition to the ArtPro manual and de scribes an optional module of ArtPro The user guide is meant to be used as both a manual with a look up information guide and a tutorial The reader should have a basic knowledge of ArtPro and Art Color PowerWarp on ArtPro 8 6 1 Procedure amp Conversions 1 1 Procedure Elements located on a source grid are transposed onto a des tination grid keeping into account the distortion given to one of these g
29. EREEREE Ven peu AC EHE A PERCE ee ret et eer rere a a T ec eect 0 12 PowerWarp on 8 6 Create Grid sje ee es ore Source Section e PowerWarp on ArtPro 8 6 of the side panels has been split up in two half side panels lo cated on the two outer parts of the destination grid Notice that the destination grid with 9 parts is centered and is equally built up around the center Here a grid was created that exists out of 9 parts 4 rounded parts for the rounded corners and 5 straight parts for the 4 side panels which are located in between those rounded parts One EIS E x Z 1 5 F 5 oy 2 4M MN EB EB tells els ic E ps t X t 7 LAP gt 979 ERR LEELA Wy Up Sewer UY TATE LT LILI PPE PATA LOFT PERRET T PTT ALTA LT CORE PLT HELTER LT PERE EET AT BCC THEE er Pe ee es ed eed et Pie tet ete nat tell WENN pope Ir Eg EEL ES EE tial LEEECEEELELEL EERE LEHRER
30. See 8 Rounded Cardboard Box on page 27 PowerWarp on ArtPro 8 6 e Cardboard Cone Cups Based on a circular grid See 9 Cardboard Cone Cups on page 30 3 1 2 Manual grid creation If there is deformation after printing other than shrinking sleeves the grid needs manual adjustments To create the source and destination grid you use the basic measurements of the object This grid should be printed and deformed The part of the object with the grid printed on should then be made as flat as possible to be able to scan it Place the scanned picture in an ArtPro document where you remake the original grid as exact as possible on top of the placed scan Then you can see that slight adjustments have to be made to the grid These adjustments should be done manually with the Modify Grid tool Blister Packs Based on a rectangular grid See 4 Blister packs on page 14 e Metal cups cans and drawn caps Based on a round elliptical or complex grid See 5 Metal Cups Cans and Drawn caps on page 17 3 1 3 Sleeve grid For Sleeves ArtPro provides a more automatic way to create the grid as for most modern sleeve shrinking methods we can assume a regular deformation and therefor use mathematical approximations Some shrinking methods like using steam will shrink the sleeve equally all over the bottle while other methods like hot air can generate a bigger shrinking on the side s where the air is blown onto the bottle In this
31. Warp on ArtPro 8 6 6 Flat Ceramic Printing his technique is also OSS based on the Circular grid es es creuar The special thing about Source Section ceramic warping is that Density 5 the resulting warp will not have any further distor tion The warped result in ArtPro will be printed on Destination Section the ceramic surface No Height 40 eye catching deformation Height 40 mm Width 100 mm mim Baseline at 0 will occur during or after printing Use Radius Angle 13 Radius 60 mm Production workflow Angle 90 the design is warped the design is printed on Link Values an almost flat substrate ceramic dish With the warp module we will have to get the design into the right shape Imagine we have a flat piece of artwork created by a designer and we want to warp this design on a circular plate The plate and the design have the following dimensions e Source Height design 40 mm e Source Width design 70 mm e Radius inner radius of the plate 80mm e Destination Height outer radius 120 mm 40 mm If a normal circular grid is used and we warp one single design element we get the result shown later on We notice the fol lowing three things PowerWarp on ArtPro 8 6 the elements which are very close to the inner circumference have no or minimal distortion and are the way we want them to be the elements close to the outer
32. any source illuminating the whole object from every direction If the Ambient light is high shadows will be invisible The amount of ambient light can be set using the slider or by entering a percentage e Spot Spot light is light coming from a specific point the light source When using only Spot light the parts of the object that can not be reached by the light source will appear black or darker so shadows will appear The amount of Spot light can be set using the slider or by entering a percentage 11 3 8 Background You can choose an arbitrary TIFF to be displayed as back ground The Tiff should be 1024 x 1024 pixels or 512 x 512 or 256 x 256 The path of the current background is shown in the 3D settings dialog Shift clicking the button will empty it so no Tiff will be used 11 3 9 3D View Clicking the Open 3d View button will re generate the 3d View based on the 3D Settings and View Settings dialog 11 3 10 Reset Pos Resets all values within the 3D view settings dialog p 41 11 3 11 Export C 3D export settings QuickTime VR settings Nr of horizontal frames 36 Nr of vertical frames 19 Save object as QuickTime movie Save object as QuickTime VR Y Save frame as Tiff 500 ppi Save frame as Tiff saves the current frame as an RGB Tiff The size in pixels is the same as the current window size the ppi can be changed in the 3D View Settings dialog with t
33. arge Diameter CR 2 2 MIO Patter The cardboard drinking CUD workflow is explained in more de tail below Production workflow print the job on the flat substrate cardboard the substrate is then shaped folded into shape this gives the final result where the image should look normal not affected by the shape of the object No stretching or shrinking of the substrate occurs during this procedure the warp module is used to get the design in the right shape of the unfolded object Smal Diameter p 25 PowerWarp on ArtPro 8 6 Save the grid The grid file is ready to use right away Since there is no stretch or shrink deformation of the substrate no additional changes Source Grid should be made to the grid I Open job containing all artwork position the ruler at the top of the selected artwork click the Warp button in the Grid Warp dialog box to start warping the selected items towards the destination grid ML beet aca b als bel badgere p Tp ree M Rew 111 2 MNRE _ Eradcrask of Badge arse Membro ux or qom ed a T The Badge Phase ail World Destination Grid PowerWarp on ArtPro 8 6 p 26 8 Rounded Cardboard Box The Complex grid option can C Create G
34. between those round E g le fo fu fo fu lo ju fo fa 1 Set l ist a lt e E 3 3 E E E E E E E E E S AA AEE 8585 gee s g ale le jo e la lo le F T as F T A ES t 3 5 bj OD OR COE OO e g SR RO ES SC SI SI EST S DS GE C Y PELLETIER TO LI UD SO EERILY ITAL PUDE p TER a HHHH PEAR PREECE eC KOE REE ae SELFEELEELECLEHLTELEELLEILT LIT PALA rd il tal eet el LETHE eet eet te HTT a EE Berrie th ra tet ES i a at eat el LLLEHELELEFHEFFEFFH EGG EEEPHEPETEEEEETETEEEELT ge a CEO ON a se od a WS TO ITEAE amp qiue Mim Pree eee cee EE er WAND CEERHEE
35. e single go See the example underneath Underneath there is an example of the importance of how warping is calculated depending on the design As you can see when warped as individual objects the line between the yellow and red square is no longer parallel p 37 By warping it as a single object i e without Outlines Text or with Outline2 Text and Group Compound if the de sign element is a group m E HH Rae Tg Without With Group Compound Group Compound HH AN SSL UA T 2 ee AE TELA gj A a i LET LI TL TIT TI A 01018 5 Warped as Warped as 1 single object individual objects e Group Selection The Group Selection option is to be used when warping in Nexus Whereas in ArtPro sleeve warping can be done based on a selection the Group Selection option allows Nexus to warp based on groups By selecting the objects you want to be warped together usually in bands of the original and making it a group in combination with the PowerWarp on ArtPro 8 6 Group Selection option in Nexus you can get the same result as selecting and warping in ArtPro PowerWarp on ArtPro 8 6 p 38 11 3D Vie
36. e the ceramics the resulting warp will not have any further dis tortion The warped re sult ArtPro will be printed on the card board surface No eye catching deformation will occur during or after printing One of the most impor tant things to keep in mind when creating a grid for Cone warping is that the grid warp module can only handle quadrangle grid elements Therefor the bottom of the grid will be stripped to avoid the creation of tri angular grid elements However this will not influence the final result if the user extends the artwork downwards The Height used for the grid Height will be the length of the side of the cone cup H minus the length of the stripped part h PowerWarp on ArtPro 8 6 9 1 Grid creation values All values necessary for the creation of the correct grid is based on only 2 parameters the length of the side of the cone cup H and the angle a If any other pair of values is given these can be used to calculate the side of the cone and the an gle For some conversion formulas see 9 3 on page 31 Density Create Grid It is highly recommended to 8 lt circular use 0 5 mm Source Height Density 05 As explained above the M _ Height for the grid will be the _ total height of the cup Destination Section the stripped part Height 152 mm 50 Height H h Baseline at 0 we aene 18 T
37. esult where the image should look normal not affected by the shape of the object With the warp module we will have to invert the deformation caused by the machine that is stretching the substrate This is the un deformation or SHRINK that can be established with GridWarp This is the machine deformation or STRETCH This explains why the grid we should change is the source grid while the destination grid will have to remain unchanged rectangular 7 Te B 2 LI wi i PowerWarp on ArtPro 8 6 sen 6548830 2 928 EDAR TESS 6 TOE First a basic grid has to made which consists of a rect angular source and destina tion grid Therefor click on the Density 5 mm Create Grid button in the Grid Height 60 Warp dialog box Then click the first icon Rectangular Three values have to be filled in Width 5n mm e Density 3 mm e Height the example object is about 50 mm high but we ll fill in 85 mm e Width the example object is about 35 mm wide but we ll fill in 50 mm Rectangular will automatically make a rectangular source grid and a rectangular destination grid which are exactly the same Save the grid Print the grid on the substrate Deform the substrate in exactly the same way as it would be
38. he 3D bitmap can be refreshed by using the shortcut Cu comma This will recalculate the 3D image bitmap 11 3 3 Random Angle If the Random Angle option is selected the 3D representation will rotate with random angles showing the box automatically from different positions 11 3 4 Angles Ver Hor controls the angle from which the viewer looks at the object in both dimensions The angle can be changed interactively in the 3d view by simply clicking and dragging in the window p 40 11 3 5 Distances Depth Height allows the user to control the distance between the viewer and the rendered object in both dimensions The Distance can be changed interactively in the 3d view window by shift clicking and dragging in the window 11 3 6 Perspective This slider allows to change the perspective angle to match camera lenses ranging from fish eye to telelense 11 3 7 Lightings e Attach The light source used for the Diffuse light can be positioned in two ways If the Attach option is on the light source is at tached to the camera This means no matter how the object is rotated the surfaces closest to the camera will be illumi nated When switching the Attach option off the light source posi tion is kept relatively to the object This means if the object is rotated the light source is rotated as well so even the un lighted parts of the object can be brought to front Ambient Ambient light is light without
39. he Bitmap Resolution setting Save object as QuickTime Movie To render a movie the object is rotated 360 degrees around its current Y axis You can change the Y axis with the 3D view Angles Ver setting The number of frames in the movie can be changed in the 3D export dialog the Nr of hor izontal frames setting When this number gets bigger the angle that the object rotates between each frame gets small er which results in a smoother but larger movie Save object as QuickTime VR A VR Virtual Reality movie allows you to rotate the object left and right by 360 degrees but also up and down by 180 de grees Beware this requires the number of horizontal frames times the number of vertical frames images to be stored so VH movies can get very large and take a long time to generate The default number of frames rotates the object by 10 de grees between each frame The Quicktime files are cross platform and can be used both on PC and on Macintosh PowerWarp on ArtPro 8 6 11 4 Using Slices 11 4 1 The Principle of using slices When creating a 3D representation the base shapes around which the grids are wrapped are circles resulting in round sleever models cups or oylinders Using slices you can define another cross cut shape or slice e g to create an oval cup such as the example underneath in case of this example the cross cut shape should be an el lipse so as you can see underneath the s
40. he height of the stripped EN m part h is defined by the Em length of the Arc see below and the Angle using the fol TE Create Grid lowing formula _ 40 x Density x 180 Angle x x h or in another form _ Density x 2 292 Angle h Source Width The value for width does not matter as it has no influence on the grid Destination Height The same as the Source Height Baseline At should be set at 100 to start see also 6 Flat Ceramic Print ing on page 22 Arc Angle Arc 40 x Density the Angle is the angle Link Values should be OFF p 30 9 2 Grid Example 1 4 poo q 0 1 2 5 14 5 9 11012121415 17 18 120 The example above shows a grid for cone cups Notice that the graphic design shown in magenta extends the source grid generating the tip in the warped version When creating a 3D preview this will result in a nice cone see previous page 9 3 Conversion Formulas When receiving the information about the cone mostly from the CAD department you will not always receive the informa tion you need First of all you have to get only the dimensions for the printed part excluding all glue strips bleed etc Next it can be possible that you need to recalculate the de sired angle and height from other dimensions The dimensions can be represented in a flat 2D model
41. ie partly on one side of the grid at the beginning and partly on the oth er side at the end only for destination grids over 360 de grees and source grids with vertical left and right edges ap if 5220 Extend Source Grid PA IPA PP a UPA PN PP IPA IP PN PPA IPA A e Flip Source Grid If the Flip Source Grid option is on the original on the source grid will be mirrored vertical and horizontal i e rotated over 180 degrees before warping Warp with Flip 7 Source Grid PT E IL E LU Bee 511411 Lum p ge p pop pep pg p e Sleeve Mode will enhance the warping functionality for sleeves see 10 Printing on shrink foil on page 32 It will also force the 3D functionality to use Sleeve Mode The other Sleeve Mode op tions are also discussed in that chapter Resolution for CT default set at 300 dpi For each original image in the source selection a new image will be created during warping using the image resolution defined in the Resolution for CT field in dpi This option enables the user to boost the resolution for the images in the warp result in extreme deformation circum stances _ Destination Grid 9 d s lia Dee Ls a he Source Grid In this example the resolution for the CT would be set at 600 dpi or more because of the extreme deformation
42. ill be warped as if they were on the center of the source grid retaining their position For the example shown above the result when warping with PowerWarp on ArtPro 8 6 p 36 e Outlines text When the Sleeve Mode option is on the selection will be warped by placing it to the center warp it and displace it again For text this will be done character by character to avoid text blocks being distorted Text converted to outlines will be treated as regular objects so they will all be warped at one go This will result in a less uniform warp for the text see example underneath on the left If the Outlines text option is on individual objects compounds will be warped one by one See the example underneath on the right LIA I LITTIT TEXT Li a Lab a LIETITTIIT111 AY LI Without With Outlines Text Outlines Text OUFUNET EG ZONE TEC eee ee mmmm MEME 117 S ic cC 3 e Group Compound If the Outlines Text option is on individual objects will be warped one by one see above However for some objects e g logos you would want them to be warped as a single object By creating a group of these objects and switching on the Group Compound option Groups will be treated as a compound and thus be warped in on
43. impor 1 Printed plates ready for drawing the cans out of tance because of the can drawing technique Horizontal changes are never to be registered the can stretches in the vertical direction only The horizontal deviation is negligible 2 Plate with cup barcode on bottom Below output of the grid was made on film then transmitted to the metal plate From this plate a master cup can be drawn 3 Plate with cup barcode on side Undistorted picture and text on the bottom The distortion informa tion must be digitized by adapting the virtual source grid If this would not be done the images and text on the sides of the cup would be wav ing See picture at the right p 19 PowerWarp on ArtPro 8 6 5 3 Grid Creation for oval cans Grid Creation for oval cans is exactly the same as for round cans but instead of a circular grid we re using an elliptical grid First create a basic grid with Create Grid Elliptical he source grid will be Create Grid rectangular and the desti Source Section nation grid will be rounded Density 0 mm Height 0 mm Density 3 mm to 5 mm e Height source and desti nation height of the Destination Section 20 Height 0 mm Adding 1096 on both sides Width 0 mm Baseline at 0 of the height is necessary to make sure that the de Hor Radius 0 mm formed printed grid of the Vert Radius 0 mm master cup wou
44. ions are not filled in completely Most common will be a rectangular box with rounded corners This means there are 8 parts in the destination grid e g e straight left Length 60mm Angle 0 e rounded Radius 100mm Angle 15 e straight top Length 20mm Angle 05 e rounded Radius 100mm Angle 15 e straight right Length 60mm Angle 0 e rounded Radius 100mm Angle 15 e straight bottom Length 20mm Angle 0 rounded Radius 100mm Angle 15 Use Radius for a rounded part of the box The Angle can not be zero Use Length of a straight part of the box In that case the Angle must be zero In other words you can not combine Length and Angle for de fining a rounded part of the grid Now check the Link Values checkbox This will calculate the corresponding width explained in the appendix see 12 Ap pendix on page 47 Save the grid The grid file is ready to use right away Since there is no stretch or shrink deformation of the substrate no additional changes should be made to the grid PowerWarp on ArtPro 8 6 Create Grid 0 mm Link Values Create Grid p 28 come ed parts Notice that the destination grid with only 8 parts is not P centered and is not equally built up on both sides Below a grid that was created that exists out of 8 parts 4 rounded parts for the rounded corners and 4 straight parts for the side panels which are located in
45. ld not cov er the side of the cup com pletely There will be quite a big overlap but by adding two horizontal reference lines where the ideal top and bottom of the cup height should be you will be able to position the job correctly afterwards by putting it in between these two reference lines on the source grid e Horizontal Radius horizontal radius of bottom flat part of the can 1096 e Vertical Radius vertical radius of bottom flat part of the can 1096 Density Link Values Source HEHHEEERHHHHHEEEHHHHHEEH Height Source Width Now check the Link Values checkbox This will calculate the corresponding width explained in the technical appendix Calculated example h original height of the cup e g 100 mm rv original vertical radius of the cup e g 50 mm original vertical radius of the cup e g 75 mm a addition to the height of about 1096 PowerWarp on ArtPro 8 6 newly calculated height h a a 120 h e g 120 mm based on the previous values Rv newly calculated vertical radius rv 10 h e g 40 mm based on the previous values Hh newly calculated horizontal radius rh 1096 h e g 65 mm based on the previous values am ms 2 The following steps are exactly the same as for a round grid above output of the grid was made on film then transmitted to the metal plate From this plate a master cup can be drawn Below an exa
46. lice used in this case was an ellipse ar UR LESE DITE 11 4 2 Defining slices In order to use slices the following conditions must be met e Use Selection as slices option This option in the 3D View settings must be on e Slice Shape The Slice to be used must be a closed polygon Open lines can NOT be used as slices PowerWarp on ArtPro 8 6 e Slice position The Slice to be used must be positioned next to the chosen grid Destination grid for regular warping Source grid if Sleeve Mode is used The top center of the slice must be vertically between the top and the bottom of the grid Slice properties Although the Slice Material Properties only influence the re sult for Spring Mass Models see 11 4 3 Spring Mass Models on page 43 these properties need to be applied for the ap plication to recognize the polygon as a Slice Simply select the shape open the Properties dialog and click Apply Selected In order for ArtPro to take the slice shape it needs to be se lected when creating the 3D view Slice Rotation The top center of the Slice is used as the start point The left and right sides of the grid will be glued together at that point Rotating the slice will change the position of the art work on the 3D result See the example underneath The top center is indicated by the red dot As the resulting 3d view at the right clearly shows the top center defines
47. mpensation for sleeves 35 Compensate Color 1 1 Cone Cups 30 Conversion 5 Convert grid to paths 8 Create grid creation 12 Create Grid 8 PowerWarp on ArtPro 8 6 Cups cone cups 30 drinking cups 25 D Delete erase grid 8 Density 13 Direction same direction 9 same direction same waypoint 10 Distortion 11 Drawn caps 17 Drinking Cups 25 E Edit grid editing 8 Erase Grid 8 Export 3D view 41 Extend Source Grid 7 r Fit fit to path 10 Flat Ceramic Printing 22 Flat color 5 Flio Source Grid 7 G Gradients noise for gradients resolution for gradients warping gradients 5 Grid basic grid warping 12 create 8 creation for blister packs 14 creation for cone cups 30 creation for oval cans 20 creation for round metal cups and drawn caps 17 creation for sardine cans 21 creation of a grid for sleeves 35 erase 8 example for blister packs 16 extend source grid File Formats 47 flip source grid 7 Full 1 2 1 4 6 8 grid creation 12 grid editing 8 grid to paths 8 Load 6 manual grid creation 12 printing a grid 13 save grid 8 show grid 8 sleeve grid 12 undo 11 units for save 8 Grid File Formats 47 Gridwarp Definition 4 Gridwarp Module 4 H Height 13 p 52 Images oversampling Resolution for CT 7 resolution for gradients warping images 5 K Keep Original 6 L Lineart convert grid to lineart 8 Load Full 1 2 1 4 6 Load grid 6 Locality 9 10 M Metal Cups 17 N Noise
48. mple of a can and the flat plate P f Isidis 1770 DIEI 72 Km SARDINES p 20 5 4 Grid Creation for Sardine Cans points of the source grid towards their new position as dis played b For this you can use the Complex grid just like the Circular grids The only difference is that the operator has more options for the creation of the basic ArtPro grid which now can be not only round but oval shaped too First create a basic grid with Create Grid Complex The source grid will be rectangular and the destination grid will be a com bination of rounded parts and straight parts Density 3 mm to 5 mm e Height source and destination height of the can 1096 e Radius radius of bottom flat part of the can 10 e Length for the straight parts e Angle all 4 angles should be 0 Now check the Link Val Nj Density 5 mm ues checkbox This will Above the basic grid as printed calculate the correspond first on the substrate for the for 25166 DER ing width explained in the mation of the master can technical appendix m Height 49 mm Save the grid n Do not forget to put a ref On the right you can see the pa nase ME erence point see also rameters for this basic grid page 14 on the circular Use Radius Angle 18 grid somewhere on the left E Ade hori
49. nderneath tions If Sleeve Mode is off the warping sieeve Nem is done the same way as for any Outlines Text i other grid However for sleeves Group Compound this gives extreme deformation for 11 elements on the outside of the source grid whereas there should be no more deformation as for objects in the center since the result will be round EE Eu Jim llli ma i L E H E Best results can be achieved by warping in parts instead of se lecting the whole design and warp it By splitting the job up it is possible to decide for every single object or group of objects whether or not it should be warped and how Keep in mind that in most cases the design should be limited by the bottom of the uncompensated shape see earlier In the picture underneath the printable area is shown in yellow both on source and destination grid To avoid these excessive warp results the Sleeve Mode should be used When warping with Sleeve Mode on a specific rou tine to warp is used The center point of the selection and the correlation between the center point of the individual objects is warped in the normal way to define the new position of the warped objects The individual objects are first moved to the center of the grid warped and then moved to the earlier cal culated position In this way all objects w
50. nges There is only one Undo Grid possible Compensate Color Allows to compensate for color changes caused by shrink ing See 10 Printing on shrink foil on page 32 11 PowerWarp on ArtPro 8 6 3 Grid Creation 3 1 Grid Creation principles There are basically 3 types of grid creation The flow chart un derneath shows the distinction between the 3 First of all you have to consider if and how the object will be physically deformed later on in the production process Based on this knowledge you can understand what kind of de formation you need and what grid source or destination that should be deformed For every production technique there will be a different solution Create basic grid Deformation after printing 1 warp using basic grid 2 Manual grid creation 3 Sleeve grid When the artwork is not deformed after printing you can use the basic grids generated by ArtPro automatically which are not material or machine dependent You have the choice be tween Rectangular Circular Complex and Conic grids To create this source and destination grid you only need the basic measurements of the object 3 1 1 Basic grid warping e Flat Ceramic printing For Ceramic plates and dishes Based on a round grid See 6 Flat Ceramic Printing on page 22 e Drinking cups Based on a complex or round grid See 7 Drinking Cups on page 25 Rounded Cardboard Boxes Based on a complex grid
51. on as slices 40 dt teat 13 11 2 5 3D View 40 _ ae ee 15 11 3 3D View 40 11 3 1 Rotate speed 40 11 3 2 Real Time 40 4 Blister packs 112222 Random ANGE scarce or dtr ricos us 40 4 1 Production workflow 14 11 3 4 Angles 40 42 Gnid 14 11 3 5 Distances 41 4 8 16 11 25 Perspective 41 2 3 1 Grid examples 16 e 2 iS Ci 4 3 2 Artwork rc 16 11 3 9 3D eee 41 11 3 10 Reset POS 41 5 Metal Cups Cans and Drawn Gapa 41 93 WorKllow eene nn nnn hr 11 4 Using 42 5 2 Grid creation for round Metal Cups and Drawn caps 17 11 4 1 The Principle of using slices 42 5 3 Grid Creation for oval 20 1174 2 DINING 42 5 4 Grid Creation for Sardine 21 11 4 3 Spring Mass Models 43 6 Flat Ceramic Printing PowerWarp on ArtPro 8 5 2 12 Appendix 12 1 Grid File 47 12 2 Definition of the Grid Coordinates 47 12
52. r right side of a 3D View Underneath is an example of a 3D view using slices see later without left and with right the Close Bottom option 11 2 3 Rotate 180 The Rotate 180 option allows to turn the design upside down before creating the 3D View 11 2 4 Use selection as slices For more information on using slices see 11 4 Using Slices on page 42 11 2 5 3D View Clicking the 3d View button will generate the 3d View based on the settings of the 3d Box Generation and View Settings dialog PowerWarp on ArtPro 8 6 11 3 3D View Settings 3D view settings Animation 2 fa Rotate Speed 0 1 Real Time Update 1 Random Angle Angles z a Vertical 0 zL 180 180 2 E 0 Distances 100 10000 fa Dph 1000 7 1000 1000 a 0 gt Perspective io 120 fe Angle 45 5 Lighting 100 fa TE e 20 Oks 1 Attach to camera fa Ambien 0 90 30 2 Background f Select Image f Open3D View ResetPos Export una 11 3 1 Rotate speed defines horizontal rotation speed 11 3 2 Real Time Update If the Real Time Update checkbox is on every change in the ArtPro window will immediately update the bitmap on the 3D representation For complex jobs it is advisable to reduce the 3D bitmap resolution in the preferences to reduce calculation times If the option is switched off t
53. rate How this can be done is described step by step e 1 Draw the shape First a path has to be created show ing the shape of the bottle based on the actual height and diameters Measure the largest and smallest di ameters of the bottle and the heights in order to create the shape as correct as possible Create a path based on the measurements e 2 Compensate Doc Select the path and click the Compensate button ArtPro will create a new shape based on the selected path The width of the new path will be the circumference of the bottle at the given height so it will be the width of the original path multiplied by pi Therefor Compensate will only work for round bottles For any other shape the circumferences should be calculated manually The height of the new path will be the length of the side of the original path representing the height of the sleeve before shrinking The point most to the left of the original path will remain un changed as this represent the height with the biggest diam eter and thus the point where the sleeve will attach to the bottle first and the rest of the shrinking will be in correlation to this point Arc length Height Outer left point As in most cases the sleeve is put over the bottle while this is standing up the design might have to be clipped by the bottom of the original shape resulting in a blank strip at the bottom of the bottle af
54. re it is important that the designer make this decision and brief the pre press about his her choices PowerWarp on ArtPro 8 6 10 3 Production workflow print the job on the flat sub strate shrink foil the substrate is glued to gether into a cylinder shape M Apart from the personal opinion there is of course still the technical limitation that you cannot print more than the sleeve width So your decision might depend on this too As you can see on the picture below the compensated panel at the right will consume a huge part of the sleeve width in the bottle neck not because the panel takes up more space but because the available surface is smaller at that place The uncompensated panel only uses its original width and that can be beneficial if you want to use the space for more im portant design elements like the apple or an important brand name etc the oylinder shaped foil is brought around an object e g a bottle the foil is then shrunk by a heating device whereby the foil is automatically set around the object this gives the final result 3 where the image on the shrunk foil should look normal not affected by the shape of the object the bottle iod bpri E PowerWarp on 8 6 p 34 The warp module is used to invert the deformation caused by the heating apparatus that is shrinking the subst
55. rid be used for these kinds of LETS warping Just like the ceramics the re Source Section sulting warp will not have any Density 0 mm further distortion The o oo Height 0 mm warped result in ArtPro will be printed on the cardboard O0 ET surface No eye catching de IRI formation will occur during or ENS o ES after printing Baseline at 50 Production workflow Mirror No HJ print the job on the flat sub strate cardboard Use Radius Angle 13 the substrate is then Are Angle shaped folded into shape 0 0 this gives the final result where the image should look normal not affected by the s _ shape of the object 0 mm 0 mm D No stretching or shrinking of 0 mm 0 gt the substrate occurs during 0 mm 0 this whole procedure the warp module is used to get m hc the design in the right shape 0 a of the unfolded object 0 TEN F3 Link Values Create a grid with Create Grid Complex The source grid will be rectangular and the destination grid will be a combination of rounded parts and straight parts e Density 3 mm to 5 mm e Source Height height of the box Do not measure the straight vertical height but the sloping height 27 TOMATO LAUGE WITH 2 SERVINGS WET WE 2002 11800 Depending the type of box the following opt
56. rids Practically Once a grid has been created see further it is a highly pro ductive tool which warps or deforms in 4 quick steps e select those items that have to be warped position the ruler at the top left of this selection load the grid file with the Load Grid button click the Warp button in the Grid Warp dialog box e Grid Warp Load Grid Full H4 Wamp Current Warp Options Grid Options 3D View Reverse Warp Sleeve Made Keep Original Outlines Text Extend Source Grid 4 Group Compound Flip Source Grid Group Selection Resolution far Images 500 ppi E Oversampling Resolution for Gradients 150 ppi b Moise for Gradients 11 1 2 Gridwarp Conversion The difference with Path Warp is not only the use of a grid i o a path but there are a lot more possibilities in gridwarp Along with paths you can also warp text gradations and pictures Linear vertical horizontal and circular gradations will be con verted to internal images to enable the deformation A multistep gradation will also be converted to CT automatical ly but you have the option to keep a multistep gradation in the final result by warping the shape of the multistep and reapply ing the warped shape to the multistep object PowerWarp on ArtPro 8 6 2 Dialog Box Overview 2 1 General e Warp Clicking this button will start to warp the selected objects
57. sion Using a Baseline at 0 will make the objects at the inside look like the original objects but then objects lying on the outside will have maximum distortion in this case a stretch It is becoming obvious to use different grids depending on the position of the original object on the source grid we will use a different grid with a baseline set accordingly In this example the artwork can be divided into 3 different hor izontal parts so that each part can be warped with minimal de formation This means 3 different grids are needed one with a baseline set at about 2596 the others at 5096 and 75 If it is not possible to divide the job in different horizontal parts we will have to choose the baseline at 5096 p 23 1 1 The source grid with the original items The result when using a grid with using a grid with baseline at 0 baseline at 10096 Take the lower part of the design the part that will appear on the inner side of the circular grid e Density 5 mm e Source Height 40 mm e Source Width leave this at mm for now e Destination Height 40 mm e Baseline at 0 e Radius 80 mm e Angle 360 e result when The source width will be calculated automatically if Link Values is checked 502 65mm This part must be repeated around the circle so that beginning and end match This means that the source width must be a multiple of the design width In our example
58. ter shrinking p 35 3 create a grid Use Create Grid Rectangular Both the source grid and the destination grid will be rectan gular To define the dimensions of the compensated path select it and open the box dialog Density 3 mm to 5 mm Height fill in a value slightly smaller than the measured ver tical size of the compensated shape e Width for best results fill in a value slightly smaller than the horizontal size of the compensated shape 4 Fit to path Open the Modify Grid dialog Position the Compensated path centered over the source grid so that the grid is vertically completely inside the path Make sure which is set to Source Grid Click Fit to path lt gt Do realize that this is the source grid This means that the original objects that you want to warp must be positioned onto this grid and can not fall outside of this source grid It is obvious that on the smallest part of the bottle there can not be as many objects as elsewhere thus there the source grid is smaller 5 Warp Position all the design elements that need to be deformed on the source grid Objects that for design reasons do not need to be warped can be positioned directly onto the rectangular destination grid To warp objects select them and click the Warp button PowerWarp on ArtPro 8 6 10 4 Sleeve Mode amp Sleeve Mode op Sleeve Mode is shown u
59. the grid on the scan later on Be sure the grid is properly centered so that the circular refer ence lines are completely horizontal on the deformed can and that the vertical reference corresponds to a fixed reference zero direction on the machine Deform the substrate in exactly the same way as it would be done during production Now you have your master can Here you can see the refer To get a digital image from the printed grid you have to cut ence marks which are highly away the bottom of the cup What s left now is a metal oylin recommended to create They a der Cut open the cylinder with a vertical cut right there where will come in handy if it comes HH the grid got marked and flatten the substrate to be able to to positioning the virtual grid LEER 2 scan the deformed on the scanned deformed grid 3 This image is used for the deformation of the source grid as done for the blister pack load the original grid in an ArtPro doc ument Place the scan and position it underneath the source grid Use the Modify Grid tool and start moving the points of the Above the grid printed to create the master can PowerWarp on ArtPro 8 6 p 18 Below the final grid with the adapted source grid Additional Examples Notice that especially the vertical adjustments are of
60. the shrink is much bigger the apple will shrink differently in different directions depending on the shape of the bottle and the apple will become more egg shaped Anyone can understand that if you compensate for this distortion that is when you print an egg shaped apple so that after shrink it becomes round again the sleeve will look much better without distortion with distortion e The Design From the very start of designing the designer should take in account the surface of the bottle the sleeve is designed for Regardless of the shrinking the surface of the bottle is much smaller in the bottle neck Therefor the surface to be de signed for should be smaller in the bottle neck area This design shaped like the jacket of the bottle should be PowerWarp on ArtPro 8 6 distorted to a rectangular sleeve which after shrinking onto the bottle will have the original size of the design The first step is to calculate the jacket of the bottle based on the heights and diameters and adapt the design to this shape At the right you see a drawing of the shape of the bottle Next the shape of the jacket created using the Compensate function see further with the graphics applied on it Next is the warped design on a rectangular shape p 32 After warping this gives the result as drawn in step 1 but at tached to the bottle It is obvious that in the bottle neck area the printable surface is smaller
61. tion will be the left center of the slice and the grid will be wrapped clockwise around the slices starting at the start position point The rest of the model is analogous to the vertical model PowerWarp on ArtPro 8 6 e Vertical Spring Mass Model Example Chips bag This first example uses very thin slices at the right of the orig inal using the pressure to get the bag effect in between Un derneath a couple of views on the 3D result eoo Chips zout finish ap Stretch Shear Bend Pressure Slice Material Properties 100 100 100 100 60 50 50 40 PowerWarp on ArtPro 8 6 p 44 Vertical Spring Mass Model Example Tube relatively low pressure Underneath a couple of views This second example uses a very thin slice on top and a cir the SD result cular slice at the red part at the right of the original using a PowerGel finish ap SAL TEC SN AE DELES LELCINE VALNE ET rr p 45 PowerWarp on ArtPro 8 6 e Horizontal Spring Mass Model Example candy bar are overlapping at the right side the rounded shape comes This third example uses a very thin slice on the outsides and first because of the location of the start position point left a rounded shape to the inside Note that although the slices center Underneath a couple of views on the SD result
62. ts and vertically down 4 Quadrants See also e Full 1 2 1 4 x2 x4 on page 6 and e Full 1 2 1 4 on page 8 Source Grid starts with begin and ends with end In between these two words you find the source grid coordinates Destination Grid starts with begin and ends with end In between these two words you find the destination grid coordinates You can easily check this by creating a small grid file yourself and opening it in Simpletext 47 12 2 Definition of the Grid Coordinates There are three ways to define a grid 1 Normal grid Begin Vertical amp Horizontal coordi nates from all grid points following each other Grid coordinates can be sepa rated by a tab a space or a carriage return The grid points are read from left to right End 2 Transpose grid Begin transpose Vertical amp Horizontal coordi nates from all grid points following each other Grid coordinates can be sepa rated by a tab a space or a carriage return The grid points are read from top to bottom and then from left to right End 3 Parallel grid Begin parallel First the height values rep resented by the horizontal lines followed by all width values represented by the vertical lines End OM Y h 4 dili ib wy h d WU normal Grid T parallel Grid PowerWarp on ArtPro
63. uadrant of a grid with 2 x2 or 4 x4 quadrants The grid will be mirrored vertically x2 or both ver tically and horizontally x4 PowerWarp on ArtPro 8 6 2 2 Warp Options Keep in mind that loading a grid with the x2 or x4 option can give unexpected results if the selected grid file is not a quad rant of the final grid you want to achieve e Current The name of the loaded grid file will be displayed in the Grid Warp dialog box after Current e Grid Warp f Load Grid Full H4 4 Warp Options Grid Options 3D View Reverse Warp Sleeve Made Keep Original Outlines Text Extend Source Grid C Group Compound Flip Source Grid Group Selection de Resolution far Images 300 4 Oversampling Resolution for Gradients 150 ppi H Noise for Gradients 11 e Reverse Warp will warp the selected paths from destination grid back to source grid See also e Warp on page 6 Keep in mind that this option also influences the SD view See 11 3D View on page 39 for more information Keep Original The original paths are kept along with the warped result e Extend Source Grid Allows you to have objects fall outside the source grid to the right The part of the job outside the grid will overlap the be ginning of the warp so as to make a perfect join This possi bility will avoid having to split up paths which should l
64. w Step amp Repeat 3D View or ArtRender is a module that allows for the creation of a 3D representation of boxes folding carton and cups conic shapes The 3D view for boxes can be found in the ArtPro manual 11 1 Generating a SD View A 3D View can be generated for cup warps and oylindric ob jects including sleeves p 39 When generating a 3D view the Destination grid is used as base for the 3D rendering If the Reverse Warp option is on the Source Grid is used instead Generating a 3D view with the Sleeve Mode option on will make ArtPro to use the Source Grid for the creation of the shape and the Destination Grid for the design This means that objects placed immediately on the Destination Grid without warping will also be shown on the 3D rendering Some examples of 3D Renderings are shown below Nordic mhoorse ale in PowerWarp ArtPro 8 6 11 2 3D Settings C Grid Warp 1 F d f Load Grid f Wap Current warp Warp Options Grd Options Close Top Left Clase Bottom Right Rotate 180 F3 Use selection as slices Properties 3D View Settings Create 3D Model 11 2 1 Close Top Left The Close Top Left option allows to close the top side or left side of a 3D View 11 2 2 Close Bottom Right The Close Bottom Right option allows to close the bottom side o
65. zontal line of the circular destination grid This is necessary 9 BE 0 for positioning the grid on the scan later on Then print the grid 720 790 on the substrate After using the modify tool to re 50 0 Deform the substrate in exactly the same way as it would be position the grid points according 20 90 done during production Now you have your master can to their position on the scan the 15 mm 0 This is an object that can not be placed on a flatbed scanner final result is created and looks 20 mm 90 to get a digital image from the deformed grid To get this image like this 0 you have to cut away the bottom of the cup What s left now is 20 mm 790 a metal cylinder Cut open the cylinder with a vertical cut right there where the grid got marked and flatten the substrate Put this on the scanner for scanning the deformed grid Save the scan as a TIFF file to be able to use it at its full resolution in Art Pro as a placed picture Go to Edit Preferences Display Picture Display Resolution to set the right resolution and then map the TIFF This image will be used for the manual deformation of the source grid similar to the way the grid of the blister pack was edited load the original grid in an ArtPro document Place the scan in the same document and position it underneath the source grid Use the Grid Editing tool and start moving the p 21 Power
Download Pdf Manuals
Related Search