My problem is that I need more geotiffs with different resolution in one layer where will be used LATEST_ON_TOP overlap. So create one MapLayer per geotiff is not usable for me.
Then layers created by above approach will be mixed with different opacity into result image. Best regards Jaroslav Kubos -------------------------------------------------------------- Ing. Jaroslav Kubos Amberg Engineering a.s. Ptasinskeho 10 602 00 Brno Czech Republic Phone: +420 541 432 659 Email: [EMAIL PROTECTED] "Diego Fdez." Durán <[EMAIL PROTECTED]> 18.01.2008 14:24 Komu [EMAIL PROTECTED] Kopie [email protected] Předmět Re: [Geotools-gt2-users] imagemosaic and geotiffs On vie, 2008-01-18 at 12:58 +0100, [EMAIL PROTECTED] wrote: > > Hi all > > I would like to render image by StreamingRenderer composed from: > > - colored background > - N layers > * geotiffs in one layer are composed (setOverlap(LATEST_ON_TOP ) of > RasterSymbolizer?) with opacity 1 > * each layer prepared in previous step has opacity > * so result is composed from all layers > > I guess that for one layer of MapContext composed from multiple > geotiffs I need ImageMosaic. Right? If there is other solution I would > prefer it. E.g. add more instances of GeoTiffReader to layer. > Can't you create one MapLayer with each GeoTiffReader/ImageMosaicReader so the StreamingRenderer can select only the rectangle that must be drawn? > I have geotiffs with overviews and tiles. Is this used when image is > part of ImageMosaic? > Yes, if you have geotiffs with internal tiling the performance will be better (512x512 is enough). Zoom levels must be set in the LevelsNum field of .properties file (in theory, If've never used it yet) > My geotiffs can differ in resolution and/or pixel size in real coords. > Is this a problem? Performance? > > What I should set to .property file to field "Levels"? Smallest value > of pixel size from set? Absolutes pixel size values from geotiff image file (All files in the mosaic must have same resolution); gdalinfo file.tif returns: Pixel Size = (4.999971237289430,-4.999971237289433) in the .properties you must write: Levels=4.999971237289430,4.999971237289433 > Hope this helps. > Best regards > Jaroslav Kubos > -------------------------------------------------------------- > Ing. Jaroslav Kubos > Amberg Engineering a.s. > Ptasinskeho 10 > 602 00 Brno > Czech Republic > > Phone: +420 541 432 659 > Email: [EMAIL PROTECTED] > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users -- Diego Fdez. Durán <[EMAIL PROTECTED]> | http://www.goedi.net GPG : 925C 9A21 7A11 3B13 6E43 50DB F579 D119 90D2 66BB
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