[gdal-dev] Projection info when creating GeoTIFFs

[Andrea Battisti]

Hi all,


I have a quick question on how the Projection information is handled
when creating GeoTIFF files using GDAL's GTIFF driver.

As stated here:
http://www.gdal.org/frmt_gtiff.html

GDAL uses some auxiliary .csv files to pick-up the correct CS.

>From this message:
http://lists.osgeo.org/pipermail/gdal-dev/2008-October/018555.html

I see that those files are: pcs.csv and gcs.csv but it is unclear to me
if they should (or not) be edited adding the desired projection.


How does the process work for a generic Projection?
As an example, what are the steps needed to convert an existing file
using the 'tpeqd' projection (wkt: 'PROJECTION["Two_Point_Equidistant"]' )
to a GeoTIFF file with the same projection?
Using GDAL's CreateCopy doesn't seem to preserve that projection, while
it does with different output drivers, e.g. HFA, VRT...



Thanks in advance!

-- 
Andrea Battisti
Applied Coherent Technology Corp.