<div>Thanks Chaitanya,</div><div><br></div><div>I intended to avoid all this writing to make sure the nadgrid is used:</div><div><br></div><i>gdalwarp -s_srs "+proj=utm +zone=30 +ellps=intl +units=m <font class="Apple-style-span" color="#FF0000">+nadgrids=R2009V9.gsb +wktext</font>" -t_srs "+proj=longlat +ellps=GRS80 +towgs84=0,0,0" rast_23030.tif rast_4258.tif</i><div>
<br></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8">But after reading this[1] I just realise that there is not such a configuration file to search for in GDAL.<br><div><br></div><div>After all is not that big issue.</div>
<div><br></div><div>Thanks anyway. </div><div><br></div><div>By,<br><meta http-equiv="content-type" content="text/html; charset=utf-8"><div><br></div>[1] <meta http-equiv="content-type" content="text/html; charset=utf-8"><span class="Apple-style-span" style="font-family: Verdana; font-size: 13px; "><a href="http://www.osgeo.org/pipermail/gdal-dev/2007-April/012561.html">http://www.osgeo.org/pipermail/gdal-dev/2007-April/012561.html</a></span><div>
<font class="Apple-style-span" face="Verdana"><br></font></div><div><a href="http://www.osgeo.org/pipermail/gdal-dev/2007-April/012561.html"></a><font class="Apple-style-span" face="Verdana"><br clear="all"></font>Eloi Ribeiro<br>
GIS Analyst<br>39,45º -4,40º<br><a href="http://eloiribeiro.wordpress.com">http://eloiribeiro.wordpress.com</a><br>
<br><br><div class="gmail_quote">On Sun, Oct 17, 2010 at 14:46, Chaitanya kumar CH <span dir="ltr"><<a href="http://chaitanya.ch">chaitanya.ch</a>@<a href="http://gmail.com">gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Eloi,<br><br>You can find the files at gdal/data/pcs.csv and gdal/data/gcs.csv<br>You may also want to refer to <a href="http://www.gdal.org/ogr/osr_tutorial.html" target="_blank">http://www.gdal.org/ogr/osr_tutorial.html</a><br>
<br><div class="gmail_quote"><div><div></div><div class="h5">
On Sun, Oct 17, 2010 at 5:18 PM, Eloi Ribeiro <span dir="ltr"><<a href="mailto:eloi.ribeiro@gmail.com" target="_blank">eloi.ribeiro@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
<div><div></div><div class="h5">
In other words,<div><br>When I ask GDAL for: </div><div><i>gdalwarp -s_srs EPSG:23030 -t_srs EPSG:4258 rast_23030.tif rast_4258.tif</i><br><br></div>GDAL knows that 'EPSG:23030' means '+proj=utm +zone=30 +ellps=intl +units=m +no_defs'. <br>
So my question is: From witch file GDAL gets that information from?<br><div><div><br></div><div>Cheers,</div><div><div><br clear="all">Eloi Ribeiro<br>GIS Analyst<br>39,45º -4,40º<br><a href="http://eloiribeiro.wordpress.com" target="_blank">http://eloiribeiro.wordpress.com</a><br>
<br><br></div><div><div></div><div><div class="gmail_quote">On Mon, Oct 11, 2010 at 14:55, Eloi Ribeiro <span dir="ltr"><<a href="mailto:eloi.ribeiro@gmail.com" target="_blank">eloi.ribeiro@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><span style="font-family:Verdana;font-size:13px">Hi all, <br><br>I would like that every time a I use gdalwarp for some EPSG codes [1] transformation it would use by default the nadgrids [2] (for Portugal and Spain) that I have under the folder '/usr/share/proj/'.<br>
<br><div style="margin-top:0px;margin-bottom:0px">For that purpose in PostGIS I needed to add '+nadgrids=nadgrid_file_name.gsb' at the end of the line of the 'proj4text' field text in table 'spatial_ref_sys' for each EPSG code I wonted to use the nadgrid.</div>
<br><div style="margin-top:0px;margin-bottom:0px">So I suppose there must be a similar way of doing this with GDAL. How can I achieve this with GDAL?</div><br><div style="margin-top:0px;margin-bottom:0px">Thank's!</div>
<br>[1] 27492,27493,20790,20791,23029,23030,23031,3763,4258,4326<br><div style="margin-top:0px;margin-bottom:0px">[2] pt73_e89.gsb, ptLX_e89.gsb, ptLB_e89.gsb, ptED_e89.gsb, R2009V9.gsb, BALR2009.gsb<br></div></span></div>
<font color="#888888">
<div><br></div><br clear="all">Eloi Ribeiro<br>GIS Analyst<br>39,45º -4,40º<br><a href="http://eloiribeiro.wordpress.com" target="_blank">http://eloiribeiro.wordpress.com</a><br>
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<a href="http://lists.osgeo.org/mailman/listinfo/gdal-dev" target="_blank">http://lists.osgeo.org/mailman/listinfo/gdal-dev</a><br></blockquote></div><font color="#888888"><br><br clear="all"><br>-- <br>Best regards,<br>
Chaitanya kumar CH.<br>
/tʃaɪθənjə/ /kʊmɑr/ <br>+91-9494447584<br>17.2416N 80.1426E<br>
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