<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Hi Thomas<br>
<br>
You could try to reduce the image size using 8bit PNGs, see the 3rd
output format in <a class="moz-txt-link-freetext" href="http://mapserver.org/mapfile/outputformat.html">http://mapserver.org/mapfile/outputformat.html</a>.<br>
<br>
Peter<br>
<br>
On 04/12/2012 06:20 AM, Thomas Joseph wrote:
<blockquote
cite="mid:65BEB16FA7472A47ADFC80A42BF04FE801ADC1BA@awtsbs01"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<meta name="Generator" content="Microsoft Word 12 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal">We have recently upgraded from Mapserver
5.7 to 6.0 and although the AGG anti-alias lines look great
the output image size has increased significantly from the
previous rendering without anti-alias. I was just wondering
if there is a way to turn off the anti-alias for polyline
rendering in Mapserver 6.0. From the documentation it
appeared that the previous GD driver did not include
anti-alias by default. We have attempted to switch the
outputformat from the new default AGG to the previous GD
driver using the outputformat directive in the map file as
shown below. This changed the image size slightly suggesting
that mapserver was using a different driver to render, however
the lines were still rendered with anti-alias on and the image
was still relatively large compared to previous mapserver
verison.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">OUTPUTFORMAT<o:p></o:p></p>
<p class="MsoNormal"> NAME "GDpng"<o:p></o:p></p>
<p class="MsoNormal"> DRIVER GD/PNG<o:p></o:p></p>
<p class="MsoNormal"> MIMETYPE "image/png"<o:p></o:p></p>
<p class="MsoNormal"> IMAGEMODE RGB<o:p></o:p></p>
<p class="MsoNormal"> EXTENSION "png"<o:p></o:p></p>
<p class="MsoNormal">END<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Previously in Mapserver 5.7 we did not
specify an outputformat we simply used IMAGETYPE PNG24 and the
output was generated without anti-alias. Any suggestions
would be greatly appreciated. If you need additional
information let me know.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">tom<o:p></o:p></p>
<p class="MsoNormal" style=""><span style="color: rgb(31, 73,
125);"><o:p> </o:p></span></p>
<p class="MsoNormal" style=""><span style="color: rgb(31, 73,
125);"><o:p> </o:p></span></p>
<p class="MsoNormal" style=""><span style="color: rgb(31, 73,
125);"><o:p> </o:p></span></p>
<p class="MsoNormal" style=""><span style="color: rgb(31, 73,
125);"><o:p> </o:p></span></p>
<p class="MsoNormal" style=""><span style="color: rgb(31, 73,
125);"><o:p> </o:p></span></p>
<p class="MsoNormal" style=""><span style="color: rgb(31, 73,
125);"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<!--[object_id=#awtwater.com#]-->
<p align="left"> </p>
<p align="left">
</p>
<hr>
<p align="left">THIS EMAIL IS CONFIDENTIAL. Its use or disclosure
by any person other than the addressee is unauthorised. Anyone
other than the intended recipient must not rely on the content
of this email or any attachment to it. The sender cannot
guarantee that this email or any attachment to it is free of
computer viruses or other conditions which may damage or
interfere with other computer systems.</p>
<p align="left">
</p>
<hr>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
mapserver-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a>
<a class="moz-txt-link-freetext" href="http://lists.osgeo.org/mailman/listinfo/mapserver-users">http://lists.osgeo.org/mailman/listinfo/mapserver-users</a>
</pre>
</blockquote>
-- <br>
<pre class="moz-signature" cols="72">Peter Hopfgartner
<a class="moz-txt-link-freetext" href="http://www.r3-gis.com">http://www.r3-gis.com</a>
</pre>
</body>
</html>