Vadim,<br><br>(0,1,0,0,0,1) is the default transform and will be returned even in case of an error.<br><br><div class="gmail_quote">On Fri, Feb 18, 2011 at 2:09 PM, Vadim Shlyakhov <span dir="ltr"><<a href="mailto:vadp.devl@gmail.com">vadp.devl@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="im">Frank Warmerdam <warmerdam <at> <a href="http://pobox.com" target="_blank">pobox.com</a>> writes:<br>
<br>
<br>
> In theory it could make sense to have a dataset with a dataset level SRS<br>
> and geotransform, and also GCPs with a different SRS. In some cases the GCPs<br>
> are in a particular SRS (say lat/long) just because it is a convenient<br>
> coordinate system to collect the GCPs, not because it is representative of<br>
> the geometry of the image.<br>
<br>
</div>Thanks Frank, That was actually my understanding. BSB and Ozi have their GCPs in<br>
long/lat, so I thought that a feature for such a case.<br>
<br>
So, if you have GCP SRS, you don't need SRS set at the dataset level, do you?<br>
<br>
BTW I've noticed if a dataset doesn't have a geotransform, then<br>
ds.GetGeoTransform() returns (0.0, 1.0, 0.0, 0.0, 0.0, 1.0). Is that a feature<br>
or a bug?<br>
<div><div></div><div class="h5"><br>
<br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Best regards,<br>Chaitanya kumar CH.<br>/tʃaɪθənjə/ /kʊmɑr/ <br>+91-9494447584<br>17.2416N 80.1426E<br>