Aji’s Journal

April 11, 2008

Extending GDAL with ECW Support

Filed under: Geographic Information System, Information Technology — admin @ 10:27 pm

MAIN REQUIREMENTS:

- Ubuntu 7.10 Gutsy Gibbon fresh installation + 5 repositories DVD
- checkinstall : a program to build .deb package from binary, to make package management easier.

We will try to compile and install PHPMapscript with .ECW (ErMapper Compression Wavelets) capabilities. GDAL (Geospatial Data Abstraction Layer) as its main library, doesn’t have default capability to read .ecw image. It needs external library from ErMapper, which has limited license.

These are what we have to do:
1. Compile and install libecwj2
2. Compile and install gdal 1.5.0
3. Install libgdal from your repositories
4. Test Gdal capability with gdalinfo
5. Compile and install MapServer
6. Check with phpinfo
7. Final Test
Thus, you should remove any installed packages mentioned above.

(more…)

March 31, 2008

Compiling PHPMapScript

Filed under: Geographic Information System, Information Technology — admin @ 4:58 pm

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