Opened 6 years ago
Closed 6 years ago
#7114 closed defect (fixed)
ENVI driver does not support "major frame offsets" and "minor frame offsets"
Reported by: | liminlu0314 | Owned by: | warmerdam |
---|---|---|---|
Priority: | normal | Milestone: | |
Component: | GDAL_Raster | Version: | svn-trunk |
Severity: | normal | Keywords: | ENVI major_frame_offsets minor_frame_offsets |
Cc: |
Description
The file "p1bg06931.N18.1b" can be displayed normally using ENVI, but cannot be displayed correctly in QGIS.
The following code can solve this problem, which has been added in the file https://trac.osgeo.org/gdal/browser/trunk/gdal/frmts/raw/envidataset.cpp#L2330
const char* pszMajorFrameOffset = NULL; pszMajorFrameOffset = CSLFetchNameValue(poDS->papszHeader, "major_frame_offsets"); if (pszMajorFrameOffset != NULL) { char **papszMajorFrameOffsets = poDS->SplitList(pszMajorFrameOffset); CPLString tempString; int nTempCount = CSLCount(papszMajorFrameOffsets); if (papszMajorFrameOffsets && nTempCount == 2) { tempString = papszMajorFrameOffsets[0]; int nOffset1 = atoi(tempString.c_str()); tempString = papszMajorFrameOffsets[1]; int nOffset2 = atoi(tempString.c_str()); nHeaderSize += nOffset1; nLineOffset += nOffset1 + nOffset2; } }
Test data link: https://www.dropbox.com/s/qupzg8bkwlwxohz/NOAA18.zip?dl=0
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