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gdal plugin: allow nodata value to be set on-the-fly as layer param #1161

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springmeyer opened this issue Apr 3, 2012 · 1 comment
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gdal plugin: allow nodata value to be set on-the-fly as layer param #1161

springmeyer opened this issue Apr 3, 2012 · 1 comment
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Mapnik 2.1

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@springmeyer
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This is useful for paletted data where the rastercolorizer is overkill and just one color needs to be marked transparent. It can be accomplished by using gdal_translate with -a_nodata <value> but we should allow this to be done in mapnik to avoid needing to pre-process the data for this simple case.
@springmeyer springmeyer mentioned this issue Apr 3, 2012
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springmeyer pushed a commit that referenced this issue Apr 3, 2012
support nodata for paletted images and allow user to set nodata on-th…
46b16c9 
…e-fly - closes #1160 and #1161 - refs #688 and refs #730 and refs #50 and refs #1018
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solved by 46b16c9, closing.

@springmeyer springmeyer mentioned this issue Sep 25, 2013
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