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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Not sure what version you’re working with. In 6.0 it should be as simple as:<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"> IMAGETYPE GIF<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> TRANSPARENT TRUE<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">No need for any funky output format, just use the default.<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>
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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""> mapserver-users-bounces@lists.osgeo.org [mailto:mapserver-users-bounces@lists.osgeo.org]
<b>On Behalf Of </b>forums<br>
<b>Sent:</b> Wednesday, December 21, 2011 6:12 AM<br>
<b>To:</b> mapserver-users@lists.osgeo.org<br>
<b>Subject:</b> [mapserver-users] Image output issues<o:p></o:p></span></p>
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<p class="MsoNormal">Hi all:<o:p></o:p></p>
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<p class="MsoNormal">I'm wondering if there's a good solution to the issues I'm having. I would prefer to use JPEG format for my maps, overall they look better and are smaller. But I have two issues I'm wondering about.
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">1) I can't seem to find a way to turn off anti-aliasing. Is it possible to turn it off with JPEG ? I want the crisper look of aliased lines for the various (MULTI)LINESTRING elements like state/county/country/coastlines, etc.<o:p></o:p></p>
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<p class="MsoNormal">2) The images are washed out or are lighter in color. Hard to explain, it's as if it's over exposed film.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">If I use GIF output, these problems go away, but other problems are introduced. For instance the image size goes up too much and the quality of the other features goes down.<o:p></o:p></p>
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<p class="MsoNormal">I have one of the Nasa Blue Earth images as a base rastar layer, then place roads and other features on top of it.<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 can use PNG images, but those are also too large and I still have the antialiasing problem with certain features.<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've considered using a jpeg for the blue marble, then a transparent gif for the overlay, and joining the two.<o:p></o:p></p>
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<p class="MsoNormal">I can't seem to get the GIF transparency to work though. (Manually setting the transparency and overlaying the GIF on the JPEG seems to produce a reasonable result.)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Gif declaration:<o:p></o:p></p>
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<p class="MsoNormal"> OUTPUTFORMAT<o:p></o:p></p>
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<p class="MsoNormal"> NAME "gif"<o:p></o:p></p>
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<p class="MsoNormal"> DRIVER GD/GIF<o:p></o:p></p>
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<p class="MsoNormal"> MIMETYPE "image/gif"<o:p></o:p></p>
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<p class="MsoNormal"> IMAGEMODE PC256<o:p></o:p></p>
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<p class="MsoNormal"> EXTENSION "gif"<o:p></o:p></p>
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<p class="MsoNormal"> FORMATOPTION "TRANSPARENT=ON"<o:p></o:p></p>
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<p class="MsoNormal"> END<o:p></o:p></p>
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<p class="MsoNormal"> IMAGECOLOR 55 55 55<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Jpeg declaration:<o:p></o:p></p>
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<p class="MsoNormal"> OUTPUTFORMAT<o:p></o:p></p>
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<p class="MsoNormal"> NAME "jpeg"<o:p></o:p></p>
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<p class="MsoNormal"> DRIVER AGG/JPEG<o:p></o:p></p>
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<p class="MsoNormal"> MIMETYPE "image/jpeg"<o:p></o:p></p>
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<p class="MsoNormal"> IMAGEMODE RGB<o:p></o:p></p>
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<p class="MsoNormal"> EXTENSION "jpg"<o:p></o:p></p>
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<p class="MsoNormal"> END<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Can anyone provide any help?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thank you.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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