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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Is the data you’re using raster only? Wonder if vector drawing exhibits the same issue.<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><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Steve<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><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> Mohamed Saâd HESSANE [mailto:saad.hessane@gmail.com] <br><b>Sent:</b> Tuesday, April 26, 2011 4:07 AM<br><b>To:</b> Frank Warmerdam; Lime, Steve D (DNR)<br><b>Cc:</b> thomas bonfort; mapserver-dev@lists.osgeo.org<br><b>Subject:</b> Re: [mapserver-dev] Precision about geotransform<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hy List,<o:p></o:p></p><div><p class=MsoNormal>There's no other explication?<o:p></o:p></p></div><div><p class=MsoNormal>Thank's<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>2011/4/22 Mohamed Saâd HESSANE <<a href="mailto:saad.hessane@gmail.com">saad.hessane@gmail.com</a>><o:p></o:p></p><p class=MsoNormal>Hy list,<o:p></o:p></p><div><p class=MsoNormal>@Lime : I use python mapscript :<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><blockquote style='margin-left:30.0pt;margin-right:0in'><div><div><p class=MsoNormal><span style='background:#FFCCCC'>#!/usr/bin/python</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'># -*- coding: iso-8859-1 -*-</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'>import mapscript</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'>import time, csv</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'>if __name__ == '__main__' :</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> mapFile = 'mapfile/mapFile.map'</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> maps = mapscript.mapObj(mapFile)</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> csvFile = csv.writer(open('rotation.csv', 'a'), delimiter='\t')</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> for i in range(360) :</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> maps.setRotation(i)</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> avg = 0</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> for j in range(5) : # 5 test and get the average</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> start = time.clock()</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> maps.draw()</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> end = time.clock()</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> avg += end-start</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> avg /= 5</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> print i, avg</span><o:p></o:p></p></div></div><div><div><p class=MsoNormal><span style='background:#FFCCCC'> csvFile.writerow([str(i), '%.2f' % avg])</span><o:p></o:p></p></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>The script write a csv file that you can import in OOo Calc or MS Excel. And then make a radar graphic.<o:p></o:p></p></div><div><p class=MsoNormal>I use a 5 GB datasource of SRP rasters, tileindexed, and having overview. The size is 600x600, and the zoom level is 1.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>@Frank : I m doing a lot of tests about rotation, zooming, resizing... to benchemark mapserver, and set a limit to my futur application. That is why it's important to me to know why it's take less/more time in specific angles.<o:p></o:p></p></div><div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>2011/4/21 Frank Warmerdam <<a href="mailto:warmerdam@pobox.com" target="_blank">warmerdam@pobox.com</a>><o:p></o:p></p><div><div><p class=MsoNormal>On 11-04-21 10:32 AM, Mohamed Saâd HESSANE wrote:<o:p></o:p></p><p class=MsoNormal>Hy list,<br>I have a question. I'm doing a benchmarking test of a rotated map, and i get<br>the result in the attached file.<br>My question is why it take more time to draw a map rotated at 45° than a map<br>rotated at 90° or 183° ???<br>Thank you !<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'>Mohamed,<br><br>It is not obvious to me why you are seeing the odd performance-base-on-angle<br>results you are encountering. I implemented the rotation support, and the<br>raster resampler used for warping rasters.<br><br>Best regards,<br><span style='color:#888888'>-- <br>---------------------------------------+--------------------------------------<br>I set the clouds in motion - turn up | Frank Warmerdam, <a href="mailto:warmerdam@pobox.com" target="_blank">warmerdam@pobox.com</a><br>light and sound - activate the windows | <a href="http://pobox.com/~warmerdam" target="_blank">http://pobox.com/~warmerdam</a><br>and watch the world go round - Rush | Geospatial Programmer for Rent</span><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>