Hello Manuel,<br><br>I am not an expert with MapServer, but I can suggest you to do all the queries in WMS mode (or other OGC query), because it is a standard and it already works to you.<br><br>Taking a look to my MapServer configuration, I have the following:<br>
<br> OUTPUTFORMAT<br> NAME gif<br> ...<br> <b>TRANSPARENT ON</b><br> END<br><br>I hope this can help you.<br><br>--<br>Regards<br>Gracia<br><br><div class="gmail_quote">2010/11/12 Manuel Aymerich <span dir="ltr"><<a href="mailto:maymerich@argongra.es">maymerich@argongra.es</a>></span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div link="blue" vlink="purple" lang="ES">
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<p class="MsoNormal"><span lang="EN-US">Hi,</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">I am working with mapserver to provide a
wms service in which users can select a map area and get a pdf print as an
output. On one my vector layers, I’ve inserted some new png symbols with an
alpha channel. Everything works great in the WMS mode, transparency for those
symbols is supported. However, when the users wants to get the pdf of an
area, I make a mapserver CGI call in MODE=MAP to retrieve the map area as
a single image an construct the pdf output on the fly. In this MODE=MAP case,
transparency for those symbols is not supported.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Here is a visual example of the problem I
am facing, so that you can all judge it yourselves:</span></p>
<p class="MsoNormal" style="text-indent: 35.4pt;"><span lang="EN-US">+ <a href="http://labs.argongra.com/demo/WMSmode.png" target="_blank">WMS mode (transparency for
symbols supported)</a>.</span></p>
<p class="MsoNormal" style="text-indent: 35.4pt;"><span lang="EN-US">+ <a href="http://labs.argongra.com/demo/MAPmode.png" target="_blank">Map mode (symbols
transparency)</a>.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">It seems that when mapserver merges all
layers into one in map mode to obtain a single output image, symbol features
are rendered without transparency support.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">At the layer level I’ve set <<
</span><span style="font-size: 9pt; font-family: "Courier New";" lang="EN-US">OPACITY
alpha >>, </span><span lang="EN-US">but the problem persists. Any clue
of want I might be missing? Is this a mapserver bug?</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Any help or hint will be appreciated.
Thanks in advanced, regards,</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Manuel Aymerich</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
</div>
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<br></blockquote></div><br>