[mapserver-dev] Error classifying 16bit data using GDAL in MapServer - #3624

Smith, Michael ERDC-CRREL-NH michael.smith at usace.army.mil
Mon Dec 6 07:03:20 EST 2010

All (primarily Frank),

I¹m getting an assertion failed error trying to classify 16 bit data in
MapServer trunk. This is working find in 5.6.5 so its a recent change,
probably dealing with the new rendering interface work.


Doing something like this

  NAME "0 - 1" EXPRESSION ([pixel] >= 1 AND [pixel] < 25 ) STYLE
  COLOR 227 227 227


mapserv57: mapdrawgdal.c:2196: msDrawRasterLayerGDAL_16BitClassification:
Assertion `rb->type == MS_BUFFER_GD' failed.

Against this dataset

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