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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Dear Bborie,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Many thanks for your response.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Date: Thu, 29 Dec 2011 11:51:13 -0800<o:p></o:p></p><p class=MsoNormal>From: Bborie Park <<a href="mailto:bkpark@ucdavis.edu">bkpark@ucdavis.edu</a>><o:p></o:p></p><p class=MsoNormal>“What version of GDAL are you using? You'll want to be using what will<o:p></o:p></p><p class=MsoNormal>be 1.9 (currently beta 2). But there is an additional question about<o:p></o:p></p><p class=MsoNormal>whether or not GDAL's PostGIS Raster driver has been updated to the<o:p></o:p></p><p class=MsoNormal>PostGIS Raster's current (and probably final) format for the<o:p></o:p></p><p class=MsoNormal>raster_columns view.”<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>A quick check revealed I was using the commands built from GDAL1.8 which we use in our modelling programs to create GTiffs for matrix storage. I downloaded prebuilt binaries for 1.9 from <a href="http://www.gisinternals.com/sdk/PackageList.aspx?file=release-1600-x64-gdal-mapserver.zip">http://www.gisinternals.com/sdk/PackageList.aspx?file=release-1600-x64-gdal-mapserver.zip</a> . These include postgis raster support. Needless to say everything now works as intended.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>“You may be better off considering the use of ST_AsPNG, ST_AsJPEG and<o:p></o:p></p><p class=MsoNormal>ST_AsTIFF. You should be able to glean the important bits needed from<o:p></o:p></p><p class=MsoNormal>the following links<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>A ASP.NET based viewer<o:p></o:p></p><p class=MsoNormal><a href="http://www.bostongis.com/blog/index.php?/archives/174-Minimalist-Web-based-ASP.NET-PostGIS-2.0-Spatial-GeometryRaster-Viewer.html">http://www.bostongis.com/blog/index.php?/archives/174-Minimalist-Web-based-ASP.NET-PostGIS-2.0-Spatial-GeometryRaster-Viewer.html</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>A PHP based viewer<o:p></o:p></p><p class=MsoNormal><a href="http://www.bostongis.com/blog/index.php?/archives/175-Minimalist-Web-based-PHP-PostGIS-2.0-Spatial-GeometryRaster-Viewer.html">http://www.bostongis.com/blog/index.php?/archives/175-Minimalist-Web-based-PHP-PostGIS-2.0-Spatial-GeometryRaster-Viewer.html</a><o:p></o:p></p><p class=MsoNormal>“<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I will take a look at these when I have a little more time as it would be useful to be able to extract the images I need directly into a viewer (openJump/QGis and even Arc) for visualisation. I have not yet been able to construct a query for rasters in openjump (I am new to SQL also!), albeit I have had no problem with vector data. I’m sure I will have more questions before I am done!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Best wishes<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Darrel<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Prof Darrel Maddy<o:p></o:p></p><p class=MsoNormal>Chair of Quaternary Science<o:p></o:p></p><p class=MsoNormal>Newcastle University UK<o:p></o:p></p></div></body></html>