[Gdal-dev] DEM 'no_data' specification

Jim Julian julian at preferred.com
Tue Feb 4 16:08:17 EST 2003


    Does GDAL allow user specification of a 'no_data' value for DEM? If
  not, would it be practical/possible to add this?
  My idea is this:
     Images are a perfect media for porting information to mainstream,
  non-GIS applications, e.g. Matlab, image analyzers, etc. Since 'no_data'
  specifications are merely position holders in the file, allowing the user
  to specify their own value would resolve some data scaling problems
  in other applications, as well as allowing construction of visually accurate
  data images .

                                                                     Jim Julian

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