mapserver/mapserver — pull request #4805 by gchang (2013-11-06 20:47:11+00:00)
Title: Allows floating point NoData/NULLVALUEs for floating point images.

For floating point DEM inputs, I needed specify a floating point NoData value so that it would be included in the output. It was being truncated as an integer, when it should have parsed it as a float.