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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When I try to get any bigger output from WCS (in this case 12000x12000 pixels RGB) with a request like
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="http://localhost:8060/cgi-bin/mapserv.exe?map=c:/ms4w_data/wcs_vv_jr.map&service=WCS&version=2.0.0&request=GetCoverage&CoverageID=orto_vv&format=image/tiff&geotiff:tiling=true&geotiff:tileheight=256&geotiff:tilewidth=256&geotiff:compression=jpeg">http://localhost:8060/cgi-bin/mapserv.exe?map=c:/ms4w_data/wcs_vv_jr.map&service=WCS&version=2.0.0&request=GetCoverage&CoverageID=orto_vv&format=image/tiff&geotiff:tiling=true&geotiff:tileheight=256&geotiff:tilewidth=256</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I get errors like this<br>
<br>
<ows:ExceptionReport version="2.0.0" xml:lang="en-US" xsi:schemaLocation=<a href="http://www.opengis.net/ows/2.0%20http:/schemas.opengis.net/ows/2.0/owsExceptionReport.xsd">http://www.opengis.net/ows/2.0 http://schemas.opengis.net/ows/2.0/owsExceptionReport.xsd</a>><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><ows:Exception exceptionCode="NoApplicableCode" locator="mapserv"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><ows:ExceptionText><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">msWCSWriteFile20(): General error message. msSaveImage() failed msSaveImageGDAL(): General error message. Failed to create output GTiff file. TIFFAppendToStrip:Write error at scanline 1024<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"></ows:ExceptionText><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"></ows:Exception><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"></ows:ExceptionReport><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I managed to get bigger images = more pixels by asking for compressed output with &geotiff:compression=jpeg<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I wonder what is the limiting resource and if there is something I could improve with some configuration. Because the output is a tiled GeoTIFF but the error is about writing a strip I guess that Mapserver is writing
first an interim TIFF.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-Jukka Rahkonen-<o:p></o:p></span></p>
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