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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You can set Opacity at the layer level.
<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">Here is the relevant part of the documentation:
<a href="http://mapserver.org/mapfile/layer.html#opacity">http://mapserver.org/mapfile/layer.html#opacity</a><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"><o:p> </o:p></span></p>
<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>rishi<br>
<b>Sent:</b> Thursday, March 05, 2015 12:38 AM<br>
<b>To:</b> mapserver-users@lists.osgeo.org<br>
<b>Subject:</b> [mapserver-users] mapserver mapfile for transparancy<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">hi all<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">i want to set transparency for colored polygons iam displaying a polygon layer on the google image and i want to set transparency so that background image has to visible in the
colored polygons<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">i have attached my map also<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">my mapfile is<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">MAP EXTENT 8240841.450745 2400319.900386 9218007.463612 3107183.406947<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">IMAGETYPE png <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">size 150 500<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333"> TRANSPARENT on <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">LEGEND <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">STATUS EMBED <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">POSITION LR <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">TRANSPARENT TRUE <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">END<o:p></o:p></span></p>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline;max-height:600px;word-wrap:normal;overflow:auto"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in">web<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> metadata<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> wms_srs "EPSG:4326 EPSG:900913"<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> end<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in">end<o:p></o:p></span></code></pre>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">LAYER CONNECTIONTYPE postgis<br>
CONNECTION "user=postgres password=****** dbname=mpdb host=localhost port=5432" DATA "geom FROM view_villagevidyut using unique village_code_c11"<o:p></o:p></span></p>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline;max-height:600px;word-wrap:normal;overflow:auto"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in">STATUS Default<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in">TYPE polygon<o:p></o:p></span></code></pre>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">labelitem "villname"<o:p></o:p></span></p>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline;max-height:600px;word-wrap:normal;overflow:auto"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> CLASSITEM "process"<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> CLASS<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> NAME "completed"<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> EXPRESSION "completed"<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> STYLE<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> COLOR 0 255 0<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> outlinecolor 121 188 255<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> END<o:p></o:p></span></code></pre>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">LABEL <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">SIZE 2 <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">color 121 188 255 <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">END <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">END <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">CLASS NAME "uncompleted"<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333"> EXPRESSION "uncompleted" <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">STYLE<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333"> COLOR 135 206 235<o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333"> outlinecolor 121 188 255 <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">END <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">END <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">CLASS NAME "plan not covered" <o:p></o:p></span></p>
<p style="mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;margin-left:0in;line-height:13.5pt;vertical-align:baseline;background-color:rgba(248,248,248,0.6)">
<span style="font-size:10.5pt;font-family:"Helvetica","sans-serif";color:#333333">EXPRESSION ""<o:p></o:p></span></p>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline;max-height:600px;word-wrap:normal;overflow:auto"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> STYLE<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> COLOR 240 128 128<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> outlinecolor 121 188 255<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> END<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> LABEL<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> SIZE 2<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> color 121 188 255 <o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> END <o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> END<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in">PROJECTION<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> "init=epsg:900913"<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"> END<o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in">end <o:p></o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in"><o:p> </o:p></span></code></pre>
<pre style="line-height:13.5pt;background:#EEEEEE;vertical-align:baseline"><code><span style="font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0in">END </span></code><span style="font-size:9.0pt;font-family:Consolas;color:#333333"><o:p></o:p></span></pre>
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