Thanks, It seems however that the GridCoverage2D class will be displayed as a raster, i.e. an image composed of pixels representing the values of the data. What if I need to draw only the grid lines ? How can I change the lines colors depending on the data value ?
Le 19 nov. 08 à 00:57, Michael Bedward a écrit : > Hi Benoît, > > For your regular cells a GridCoverage2D can store data of the type > that you describe. Each cell can have multiple values. You can > convert the grid to other projections. > > See > http://javadoc.geotools.fr/2.6/org/geotools/coverage/grid/GridCoverage2D.html > > To my knowledge Geotools doesn't presently support irregularly gridded > data. Depending on the specifics of your data you could handle this > with a vector layer instead. I've done something similar when working > with a lattice of different sized, but still tesselated, cells. You > might also want to investigate JGrass which I think supports TINs > (triangular irregular networks): > http://jgrass.wiki.software.bz.it/jgrass/JGrass_Wiki > > Michael > > > 2008/11/19 Benoît Thiébault <[EMAIL PROTECTED]>: >> Hi ! >> >> I would like to manipulate data in a 2D grid (at least viewing it, >> changing its colors, changing its values, converting from a >> projection >> to another, etc.) >> >> This grid, in a first step, is going to be cartesian and regular, >> i.e. >> with dX and dY constant, each cell being a rectangle. >> >> The grid will contain values (water depth for example, but other >> infos >> as well), located in the center of the cell or on the edges of the >> cells. >> >> Is the GridCoverage2D class adapted for this usage ? >> >> In the future, the grid is planned to be irregular (dX and dY will >> not >> be constant, thus one will need to store each dX and dY or the >> position of all points of the grids) and even one day with cells that >> are irregular quadrilaterals. Is there a class adapted for this usage >> too ? >> >> Thanks >> >> Kind regards >> >> Ben >> >> ------------------------------------------------------------------------- >> This SF.Net email is sponsored by the Moblin Your Move Developer's >> challenge >> Build the coolest Linux based applications with Moblin SDK & win >> great prizes >> Grand prize is a trip for two to an Open Source event anywhere in >> the world >> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >> _______________________________________________ >> Geotools-gt2-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >> > Benoît Thiébault Société Artenum 24 rue Louis Blanc, 75010 Paris tel: +33 (0)1 46 94 67 54 Artenum - Science & Groupware - http://www.artenum.com ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
