Updated RasterSymbolizer (markdown)

tmcw 2011-12-09 12:14:02 -08:00
parent 01f87ea1be
commit 9fd80edec0

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<!-- Name: RasterSymbolizer --> <!-- Name: RasterSymbolizer -->
<!-- Version: 19 --> <!-- Version: 19 -->
<!-- Last-Modified: 2010/03/12 07:06:11 --> <!-- Last-Modified: 2010/03/12 07:06:11 -->
<!-- Author: albertov --> <!-- Author: albertov -->
# RasterSymbolizer # RasterSymbolizer
The RasterSymbolizer is used to render an image from any [GDAL supported format](http://www.gdal.org/formats_list.html) using the [wiki:GDAL] plugin or from GeoTiff's using the [wiki:Raster] plugin. The RasterSymbolizer is used to render an image from any [GDAL supported format](http://www.gdal.org/formats_list.html) using the [[GDAL]] plugin or from GeoTiff's using the [[Raster]] plugin.
* Mapnik does not yet support on-the-fly reprojection of raster layers (like it does for vector layers) * Mapnik does not yet support on-the-fly reprojection of raster layers (like it does for vector layers)
* Therefore it is necessary to first (externally) warp an image to the Spatial Reference System (srs) used in the map (e.g. using the `gdalwarp` command from the gdal-utilities). * Therefore it is necessary to first (externally) warp an image to the Spatial Reference System (srs) used in the map (e.g. using the `gdalwarp` command from the gdal-utilities).