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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You can specify geographic extents of the output using gdalwarp’s –te (target extents) parameter.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tom<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> gdal-dev-bounces@lists.osgeo.org [mailto:gdal-dev-bounces@lists.osgeo.org]
<b>On Behalf Of </b>Andreas<br>
<b>Sent:</b> Friday, September 20, 2013 11:55 AM<br>
<b>To:</b> gdal-dev@lists.osgeo.org<br>
<b>Subject:</b> [gdal-dev] Get dataset area after geotrasform between coordinate systems<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I'm using gdalwarp to convert a raster dataset from EPSG:4326 to EPSG:2202<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">$>gdalwarp -s_srs "EPSG:4326" -t_srs "EPSG:2202" inputfile.tif outputfile.tif<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">after that, the output file is correted converted to the new coordinate system, but the output raster image has some blank area at the boorders. I need obtain the lower left corner coordinates from the output raster file including the blank
area.<o:p></o:p></p>
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<p class="MsoNormal">My question: is enought use the information obtained from gdalinfo (lower left corner coordinates)?<o:p></o:p></p>
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<p class="MsoNormal">It does includes the blank area?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Is there a way to cut-off these blank area from output file or just inform gdalwarp to crop the image just to valid data? <o:p></o:p></p>
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