I have some rasters (PNGs) that when I try to re-style give me the error
Sep 17, 2015 12:54:31 PM
org.geotools.renderer.lite.StreamingRenderer$RenderRasterRequest execute
WARNING: Band number 3 is not valid.
java.lang.IllegalArgumentException: Band number 3 is not valid.
at
org.geotools.renderer.lite.gridcoverage2d.ColorMapNode.visit(ColorMapNode.j
ava:148)
at
org.geotools.renderer.lite.gridcoverage2d.RasterSymbolizerHelper.visit(Rast
erSymbolizerHelper.java:220)
at
org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer.symbolize(Gr
idCoverageRenderer.java:464)
at
org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer.renderCovera
ge(GridCoverageRenderer.java:438)
at
org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer.renderImage(
GridCoverageRenderer.java:386)
at
org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer.paint(GridCo
verageRenderer.java:1141)
at
org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer.paint(GridCo
verageRenderer.java:1103)
at
org.geotools.renderer.lite.StreamingRenderer$RenderRasterRequest.execute(St
reamingRenderer.java:3494)
at
org.geotools.renderer.lite.StreamingRenderer$PainterThread.run(StreamingRen
derer.java:3667)
when I set the style on the layer. I am not too cognisant of rasters, what
am I doing wrong?
What would be the best approach to style this particular type of raster
(if at all) and if so, how do
interrogate the grid coverage to find out how to go about styling?
I cannot catch this exception as it is not percolated to the where I can
catch it so my whole map rendering goes haywire.
Thanx
Gaby
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