[gdal-dev] How to extract Well Known Text Coordinate System
information (WKT)..., OGR unresolved reference problem
Zermeno, Robert J CIV NAVAIR, 472100D
robert.zermeno at navy.mil
Thu Apr 22 10:52:12 EDT 2010
I am enjoying the simplicity of GDAL with integrating with various formats. I have two related questions.
1. How can I simply extract individual pieces of WKT? Meaning, The returned string from GetProjectionRef() returns a WKT format coordinate system string describing the geographical reference the image pertains to. I would like to grab each of the components.
2. This is kind of a question:
Instead of parsing through the XML myself, I thought GDAL already has this functionality. I have tried to perform:
poSRS->GetPrimeMeridian(), but I receive an unresolved reference compile error. This is odd to me. I can do the GDAL API tutorial section that uses OSRSetUTM(), OSRDestroySpatialReference(), OSRExportToWKt().
I have tried to include all main ogr.h files: ogr_api.h, ogr_spatialref.h, ogr_core.h, ... But no such luck.
The platform I am using is Borland C++. I compiled a dll and lib file through MSVC 2008 and used Borland coff2omf.exe to properly convert the lib file.
3. Another question popped into mind:
When compiling, should I change option in GDALRoot/nmake.opt to comment out DLLBUILD. I have INCLUDE_OGR_FRMTS set to "YES". What would you think I'm missing.
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