Hi Martin and Jesse, During last week I've added TPS algorithm (by subclassing WarpGridBuilder). I've also Implemented the functionality that should allow user to save generated controlling grid into the text files and on other hand I've added Provider for WarpGridtransform2D that can build this transform from proper files (I'm just tuning this – It is still buggy but should work soon.) The file as such is having same structure as definitional by ESRI (more here
http://edndoc.esri.com/arcsde/9.2/concepts/geometry/coordref/coordsys/geographic/transformationmethods.htm – at the bottom of the page). In this way it can be also defined in EPSG database. One thing that may should be controversial is the problem with integer values for the grid that are expected for WarpGridTransform2D. Current implementation is that the WarpGridBuilder can have explicitly defined transformation from grid to world coordinates (for raster it is coverage.getGridGeometry.getMatTransform), but it should be also use to 'enlarge' the grid so the decimal point is moved. On other hand there is no way how to express this world to grid transformation into the grid file. One my thought is also to store the grid values like image with .prj and .wld file. Bests, Jan. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
