[gdal-dev] GXF -- Grid eXchange File to AAIGrid -- Arc/Info ASCII Grid No Value Issue

[David Baker (Geoscience)]

All,

Using OpenEV from FWTools version 2.4.7 to convert the GXF file found at http://pubs.usgs.gov/of/2000/ofr-00-0042/data/ from the GXF format to AAIGrid format I have found an issue.  In the GXF file the #DUMMY value/string is -1e32 and this is the same value/string found in the data portion of the GXF file.  After conversion in the AAIGrid file, the NODATA line reads

NODATA_value -1.0000000000000001e+032

but the value -1.0000000331813535e+032 is found in the data portion of the AAIGrid file where the value -1.0000000000000001e+032 should be found.  As OpenEV uses GDAL/OGR to do the conversion I have posted this issue here.

Thanks,

David M. Baker
Senior Geologist - Chief Technology Advisor
Chesapeake Energy Corporation
405-935-3715 office
405-496-5373 cell
david.m.baker at chk.com<mailto:david.m.baker at chk.com>


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