Introduction to GDAL

This tutorial will introduce you to the GDAL command line tools.

3. Reprojecting GIS data

3.2. Reprojecting vector data

For vector data the ogr2ogr command is used. The syntax is:

ogr2ogr -t_srs EPSG:XXXXX <output> <input>

Note that <output> and <input> are in a different order than for gdalwarp!

Here we'll convert the OpenStreetMaps road data to the Amersfoort/RD New projection.

1. Execute:
ogr2ogr -t_srs EPSG:28992 roadsreprojected.shp roads.shp

The command is executed (it takes some time), but gives a warning.

2. What does the warning mean?

More information about the ogr2ogr command can be found here.