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GDAL WKT Raster driver documentation
1 - Introduction
WKT Raster is the project that provides raster support on PostGIS.
This driver was developed during the Google Summer of Code 2009. The driver only supports reading of regularly blocked in-db rasters. There are other functionalities under development:
- Reading of non-regular blocked rasters.
- Out-db raster support.
- Create and modify rasters.
- Integration with the GDAL utility programs.
1.1 - Credits
Development
- Jorge Arévalo develops the driver
1.2 - More information
- WKT Raster documentation page here
- Introduction to WKT Raster format and description of the work done during the Google Summer of Code 2009 here
- Search for "WKT Raster" in the PostGIS-users and PostGIS-devel forums archives or in Nabble or write to these forums.
2 - Installation
2.1 - Requirements
For using GDAL WKT Raster driver, you will first need to install:
- PostgreSQL version 8.3 or higher
- Proj4 library version 4.4 or higher
- GEOS library version 3.2.0 or higher
- PostGIS version 1.4.0 or higher
- WKTRaster PostGIS extension version 0.1.6SVN or higher
2.2 - Installed precompiled binaries
For the moment, there is no precompiled binaries. You can find precompiled binaries for the whole GDAL library here. The driver will be part of the library for 1.7.0 version.
2.3 - Compiling and installing from sources
2.3.1 - Compiling on GNU/Linux
Follow the instructions to compile the requisites here (only the 5 first steps). After this, you will have to get the code of the fork of GDAL version 1.7.0SVN developed for the Google Summer of Code 2009. You can export the source code with Subversion from here by:
>$ svn export http://www.gis4free.org/gdal_wktraster
The fork version of GDAL is compiled like the official one. You can find instructions on how to build GDAL library on UNIX-like systems here.
Once the driver is added to the official GDAL trunk, you should get the source code of GDAL from official's GDAL repository.
2.3.2 - Compiling on Windows
The GDAL library with the WKT Raster driver hasn't been yet compiled on Windows.
