GDAL commands used for our [public map archive](/maps) **Lists information about a raster dataset** > gdalinfo -stats input.tif **Prepare image fro new map coordinate system with GCPs** > gdal_translate -of GTiff -a_srs EPSG:4326 -gcp x(longitude "pixel") y(latitude "line") easting(longitude degree decimal) northing(latitude degree decimal) input.tif output.tif **Warp an image into a new coordinate system** > gdalwarp -of GTiff -t_srs EPSG:4326 input.tif output.tif **Publish image map for tiled viewer. generating TMS tiles, KMLs and web viewers** > gdal2tiles.py --title="Map Title" --tile-format="jpeg" --zoom=12-23 --copyright=COPYRIGHT --googlekey=KEYCODE input.tif output_dir **generate MBTiles from GeoTiff** > raster2mb input.tif output.mbtiles **generate JPG from GeoTiff** > gdal_translate -of JPEG -b 1 -b 2 -b 3 input.tif output.jpg **convert raster data between different formats - With a_ullr** > gdal_translate -of GTiff -a_srs EPSG:4326 -a_ullr ulx uly lrx lry input.tif output.tif **convert geotiff to spherical mercator JPG** > gdalwarp -of GTiff -t_srs EPSG:900913 input.tif output.jpg **All gdal utility programs** http://gdal.org/gdal_utilities.html ###Customizations### **MrSID converting to GeoTIFF** Following advice listed on http://gdal.org/frmt_mrsid.html and http://casoilresource.lawr.ucdavis.edu/drupal/node/98, we're putting installing a modified GDAL to be able to convert USDA MrSID files into geotiff: > Add the DSDK path to configure: --with-mrsid=/Geo_DSDK-6.0.7.1407/ There is a bug in Geo_DSDK-6.0.7.1407//include/base/lti_sceneBuffer.h line 356: bool LTISceneBuffer::inWindow(lt_uint32 x, lt_uint32 y) const; // <--- line 356 > Comment out this line, and re-compile. Thanks to Mateusz Loskot on the GDAL IRC channel for pointing this out. gdal_translate file.sid file.tif