<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>My program does MANY other things that GDAL can’t. I’m using GDAL as a small part of something much larger. I need to do the transformation at runtime.</span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Marc,<br><br>proj4 usually comes with the gdal library. Instead of coding your own program, first try the ogr2ogr utility[1] that comes with the gdal library.<br><br>[1]: <a href="http://www.gdal.org/ogr2ogr.html">http://www.gdal.org/ogr2ogr.html</a><o:p></o:p></p><div><p class=MsoNormal>On Tue, Oct 18, 2011 at 1:36 PM, <<a href="mailto:dev4cx4m9z@snkmail.com">dev4cx4m9z@snkmail.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I have a GIS database with all coordinates stored in WGS84 datum. I am trying to translate the coordinates of the database to the datum of my map. I am creating two OGRSpatialReference, one for WGS84 and one for the current map. I am then creating an OGRCoordinateTransformation. When I do so I get a PROJ.4 error – “No PROJ.4 translation for destination SRS, coordinate transformation initialisation has failed”<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Question – Do I HAVE to use PROJ.4 to do the translation? Can I not just load the SRS with a WKT? I wish to avoid PROJ.4 as I’m unsure how to build it.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>_______________________________________<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Marc Hillman, Melbourne, Australia<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a href="http://users.tpg.com.au/users/mhillman/" target="_blank">http://users.tpg.com.au/users/mhillman/</a><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>marc .hillman @ t p g . c o m . a u<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.5pt;font-family:Consolas'>Eagles may soar, but weasels don't get sucked into jet engines.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.5pt;font-family:Consolas'>Early bird gets the worm, but the second mouse gets the cheese.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.5pt;font-family:Consolas'>If Barbie is so popular, why do you have to buy her friends?</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.5pt;font-family:Consolas'>All those who believe in psychokinesis, raise my hand..</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div></div><p class=MsoNormal><br>_______________________________________________<br>gdal-dev mailing list<br><a href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a><br><a href="http://lists.osgeo.org/mailman/listinfo/gdal-dev" target="_blank">http://lists.osgeo.org/mailman/listinfo/gdal-dev</a><o:p></o:p></p></div><p class=MsoNormal><br><br clear=all><br>-- <br>Best regards,<br>Chaitanya kumar CH.<br><br>+91-9494447584<br>17.2416N 80.1426E<br><br><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>No virus found in this message.<br>Checked by AVG - <a href="http://www.avg.com">www.avg.com</a><br>Version: 2012.0.1831 / Virus Database: 2092/4558 - Release Date: 10/17/11<o:p></o:p></p></div></body></html>