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GDAL Raster Provider for MapGuide 2.6 and 3.0
This page provides installation and configuration tips for the !GDAL Raster Provider for MapGuide Open Source 2.6 and 3.0. This document is a work in progress. Please post any feedback on this document to the mapguide-users list.
Introduction
The default GDAL FDO provider provided by MapGuide 2.6 and 3.0 is built using the standard driver profile of GDAL 1.10. That is to say of the drivers listed here:
The default GDAL FDO provider will only support the drivers where Compiled by default is unconditionally Yes
To support additional raster/vector formats, you need to source an alternate binary build of GDAL/OGR. Usually the place to get such alternate GDAL/OGR binaries is at GISInternals
Unfortunately, due to the nature of C++ code (MapGuide, FDO and GDAL all being written in it), you must make sure to download the GDAL/OGR package that is built with the same MSVC compiler used to build MapGuide Open Source 2.6 and 3.0 which is MSVC 2012.
Sadly, GISInternals does not offer a binary of GDAL 1.10 built with MSVC 2012, meaning this option of using custom GDAL binaries not possible.
Fortunately, GISInternals offers a Development Kit that allows us to build our own custom GDAL binaries using MSVC 2012.
Jackie Ng has made available a custom build of GDAL 1.10 with additional raster and vector format support thanks to the availability of this GISInternals Development Kit:
- GDAL 1.10 for MapGuide Open Source 2.6/3.0 32-bit
- GDAL 1.10 for MapGuide Open Source 2.6/3.0 64-bit
The custom build of GDAL 1.10 required some modifications to the DevKit to support compilation against GDAL 1.10. These modifications can be found on Jackie's GitHub repository
Additional Driver Support
This custom build of GDAL 1.10 offers support for the following additional raster formats:
ECW (rw): ERDAS Compressed Wavelets (SDK 3.x) JP2ECW (rw+v): ERDAS JPEG2000 (SDK 3.x) FITS (rw+): Flexible Image Transport System GMT (rw): GMT NetCDF Grid Format netCDF (rw+s): Network Common Data Format WCS (rovs): OGC Web Coverage Service WMS (rwvs): OGC Web Map Service HTTP (ro): HTTP Fetching Wrapper Rasterlite (rws): Rasterlite PostGISRaster (rws): PostGIS Raster driver MBTiles (rov): MBTiles
And support for the following additional vector formats:
-> "PostgreSQL" (read/write) -> "NAS" (readonly) -> "LIBKML" (read/write) -> "Interlis 1" (read/write) -> "Interlis 2" (read/write) -> "SQLite" (read/write) -> "VFK" (readonly) -> "OSM" (readonly) -> "WFS" (readonly) -> "GFT" (read/write) -> "CouchDB" (read/write) -> "ODS" (read/write) -> "XLSX" (read/write) -> "ElasticSearch" (read/write) -> "PDF" (read/write)
For more information about these formats, consult the respective GDAL and OGR driver format pages.
NOTICE: Due to licensing terms that prohibit redistribution, the raster/vector format support in this custom build of GDAL is not the same as the GDAL binaries made available on GISInternals. In particular, the Development Kit does not contain the libraries needed to build GDAL with support for the following formats:
- Raster
- MrSID
- Vector
- Oracle OCI
Also, the Development Kit targets GDAL 1.11 instead of GDAL 1.10. As a result, certain build configuration parameters are not applicable or invalid when using the DevKit to build against GDAL 1.10, meaning support for the following formats have been omitted as well:
- Raster
- JP2OpenJPEG (GDAL 1.10 requires OpenJPEG 2.0, the DevKit bundles OpenJPEG 2.1 that GDAL 1.11 requires)
- Vector
- MySQL (assorted compiler/linker errors when building against GDAL 1.10)
Licensing
NOTICE: ECW Technology must be licensed from ERDAS if it used in a server application like MapGuide. Please see the following link for information on the licensing. http://iws.erdas.com/gis/can-i-use-ecw-technology-in-my-third-party-server.aspx
NOTICE: Additional plugins and libraries included in this distribution may be under radically different licenses, you MUST obtain valid licenses for each of these dependent libraries. License information for such plugins and libraries can be found in RTF format on the GISInternals buildsystem repository on GitHub: https://github.com/gisinternals/buildsystem
Installation
Unzip the zip distribution to the FDO directory of your MapGuide installation, which by default is:
C:\Program Files\OSGeo\MapGuide\Server\FDO
If prompted, overwrite any existing files.
Then set an environment named GDAL_DRIVER_PATH that points to the new gdalplugins under your FDO directory (NOTE: In previous versions of this guide, it told you to have the gdalplugins directory under the MapGuide Server's bin directory. The change of instructions here is to allow both FDO and the included set of GDAL/OGR console applications to be able to load these GDAL/OGR plugins)
Make sure that mapguide is reading the correct co-ordinate system is being read from the source files, override it if necessary.
Debugging
Configuration
The default serverconfig.ini settings set by the installer should be sufficient. No additional serverconfig.ini modifications are required.
In addition to CPL_DEBUG, GDAL offers many other runtime configuration options via environment variables. See here for the full list
