diff options
Diffstat (limited to 'docs/source/faq.rst')
| -rw-r--r-- | docs/source/faq.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/source/faq.rst b/docs/source/faq.rst index 77639cdc..a03eae31 100644 --- a/docs/source/faq.rst +++ b/docs/source/faq.rst @@ -102,7 +102,7 @@ How do I use EPSG coordinate system codes with PROJ? There is somewhat imperfect translation between 2D geographic and projected coordinate system codes and PROJ descriptions of the coordinate system -available in the ``epsg`` definition file that normally lives in the ``proj/nad`` +available in the ``epsg`` definition file that normally lives in the ``proj/data`` directory. If installed (it is installed by default on Unix), it is possible to use EPSG numbers like this: @@ -123,7 +123,7 @@ to use EPSG numbers like this: # # +proj=latlong +datum=NAD27 +ellps=clrk66 +nadgrids=conus,ntv1_can.dat -The proj/nad/epsg file can be browsed and searched in a text editor for +The ``proj/data/epsg`` file can be browsed and searched in a text editor for coordinate systems. There are known to be problems with some coordinate systems, and any coordinate systems with odd axes, a non-greenwich prime meridian or other quirkiness are unlikely to work properly. Caveat Emptor! |