| 19 | 19 | 6. '''PostGIS / WKT Raster Driver''': Implementation of read-only GDAL [http://gdal.org/gdal_drivertut.html driver] for [http://postgis.refractions.net/support/wiki/index.php?WKTRasterHomePage WKT Raster] extension to [http://postgis.refractions.net/ PostGIS]. The WKT Raster is ''is an ongoing project aiming at developing raster support in PostGIS (...) goal is to implement the RASTER type as much as possible like the GEOMETRY type is implemented in PostGIS''. [http://mateusz.loskot.net/?p=291 WKT Raster crash course #1] gives detailed overview of the project background. In short, implementation steps will include parsing of [http://svn.osgeo.org/postgis/spike/wktraster/doc/RFC2-WellKnownBinaryFormat WKB format], define specializations of [http://gdal.org/classGDALDataset.html GDALDataset] and [http://gdal.org/classGDALRasterBand.html GDALRasterBand], implement read operations for bands. The idea behind WKT Raster in GSoC 2009 is to deliver a prototype (or proof of concept) that can be used as a base for further development, so only two raster types are considered: 1 band of [http://gdal.org/gdal_8h.html GDT_Byte] ([http://en.wikipedia.org/wiki/Grayscale Grayscale]), 3 x 1 band of GDT_Byte ([http://en.wikipedia.org/wiki/RGB_color_model RGB]). Knowledge: [http://en.wikipedia.org/wiki/Raster_graphics raster] graphics, basic understanding of [http://en.wikipedia.org/wiki/Well_known_binary Well-Known-Binary]-like formats, [http://www.postgresql.org/docs/8.3/static/libpq.html libpq], C (strong), C++ (basic). |
