Saâd, Can you provide the vrt file causing the crash? Also, please show me the error messages you got.
On Thu, Apr 12, 2012 at 7:21 PM, Saâd HESSANE <[email protected]>wrote: > Thank you Chaitanya for the answer, > > I do the test with the kenel element like the documentation : > > >> <Kernel normalized="1"> >> <Size>3</Size> >> <Coefs>0.11111111 0.11111111 0.11111111 0.11111111 0.11111111 >> 0.11111111 0.11111111 0.11111111 0.11111111</Coefs> >> </Kernel> >> > It's the same probleme, gdal_translate crash. But if the VRTRasterBand > have just one KernelFilteredSource element, gdal_translate work fine and > apply the filtre correctely. > > The poblem appears if there are more than one KernelFilteredSource element > in the VRTRasterBand. > > > > 2012/4/12 Chaitanya kumar CH <[email protected]> > >> Saâd, >> >> There should be a Kernel element in a KernelFilteredSource. >> FYI, all the pixels whose kernel has a nodata pixel will be reported as a >> nodata pixel. >> >> On Wed, Apr 11, 2012 at 3:20 PM, Saâd HESSANE <[email protected]>wrote: >> >>> Hy all, >>> >>> I have a VRT file generated with buildvrt utility : >>> >>> <VRTDataset rasterXSize="52436" rasterYSize="32400"> >>>> <SRS>...</SRS> >>>> <GeoTransform>...</GeoTransform> >>>> <VRTRasterBand dataType="UInt16" band="1"> >>>> <NoDataValue>0</NoDataValue> >>>> <ColorInterp>Gray</ColorInterp> >>>> <ComplexSource> >>>> <SourceFilename relativeToVRT="1">1.tif</SourceFilename> >>>> <SourceBand>1</SourceBand> >>>> <SourceProperties RasterXSize="8449" RasterYSize="6429" >>>> DataType="UInt16" BlockXSize="8449" BlockYSize="1" /> >>>> <SrcRect xOff="0" yOff="0" xSize="8449" ySize="6429" /> >>>> <DstRect xOff="0" yOff="0" xSize="10721" ySize="8158" /> >>>> <NODATA>0</NODATA> >>>> </ComplexSource> >>>> <ComplexSource> >>>> <SourceFilename relativeToVRT="1">2.tif</SourceFilename> >>>> <SourceBand>1</SourceBand> >>>> <SourceProperties RasterXSize="8772" RasterYSize="6407" >>>> DataType="UInt16" BlockXSize="8772" BlockYSize="1" /> >>>> <SrcRect xOff="0" yOff="0" xSize="8772" ySize="6407" /> >>>> <DstRect xOff="43664" yOff="25993" xSize="8772" ySize="6407" /> >>>> <NODATA>0</NODATA> >>>> </ComplexSource> >>>> </VRTRasterBand> >>>> </VRTDataset> >>>> >>> >>> It's work fine with a gdal_translate. >>> Now I want to apply a filter kernel to the VRT. I have to use the >>> KernelFilteredSource. >>> The gdal api say that VRTKernelFilteredSource is a sub-class of >>> VRTComplexSource. So a VRTKernelFilteredSource *is *a VRTComplexSource. >>> But if I replace VRTComplexSource by VRTKernelFilteredSource, >>> gdal_translate crash. This is the new VRT : >>> >>> <VRTDataset rasterXSize="52436" rasterYSize="32400"> >>>> <SRS>...</SRS> >>>> <GeoTransform>...</GeoTransform> >>>> <VRTRasterBand dataType="UInt16" band="1"> >>>> <NoDataValue>0</NoDataValue> >>>> <ColorInterp>Gray</ColorInterp> >>>> <KernelFilteredSource> >>>> <SourceFilename relativeToVRT="1">1.tif</SourceFilename> >>>> <SourceBand>1</SourceBand> >>>> <SourceProperties RasterXSize="8449" RasterYSize="6429" >>>> DataType="UInt16" BlockXSize="8449" BlockYSize="1" /> >>>> <SrcRect xOff="0" yOff="0" xSize="8449" ySize="6429" /> >>>> <DstRect xOff="0" yOff="0" xSize="10721" ySize="8158" /> >>>> <NODATA>0</NODATA> >>>> </KernelFilteredSource> >>>> <KernelFilteredSource> >>>> <SourceFilename relativeToVRT="1">2.tif</SourceFilename> >>>> <SourceBand>1</SourceBand> >>>> <SourceProperties RasterXSize="8772" RasterYSize="6407" >>>> DataType="UInt16" BlockXSize="8772" BlockYSize="1" /> >>>> <SrcRect xOff="0" yOff="0" xSize="8772" ySize="6407" /> >>>> <DstRect xOff="43664" yOff="25993" xSize="8772" ySize="6407" /> >>>> <NODATA>0</NODATA> >>>> </KernelFilteredSource> >>>> </VRTRasterBand> >>>> </VRTDataset> >>>> >>> >>> It's weird, I expected a polymorphism between VRTComplexSource and >>> VRTKernelFilteredSource. >>> So the question : how can I apply a filter to a VRT? >>> Thank you ! >>> >>> >>> _______________________________________________ >>> gdal-dev mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/gdal-dev >>> >> >> >> >> -- >> Best regards, >> Chaitanya kumar CH. >> >> +91-9494447584 >> 17.2416N 80.1426E >> > > -- Best regards, Chaitanya kumar CH. +91-9494447584 17.2416N 80.1426E
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