<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE></TITLE>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD>
<BODY text=#000000 bgColor=#ffffff>
<DIV dir=ltr align=left><SPAN class=281312611-03082008><FONT face=Arial
color=#0000ff size=2>here is another example with animation and
OpenLayers</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=281312611-03082008><FONT face=Arial
color=#0000ff size=2><A
href="http://gis.ibbeck.de/ginfo/apps/Pentominoes/pentominoes.html">http://gis.ibbeck.de/ginfo/apps/Pentominoes/pentominoes.html</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=281312611-03082008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=281312611-03082008><FONT face=Arial
color=#0000ff size=2>click 'starten' or 'start' to begin the
animation.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=281312611-03082008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=281312611-03082008><FONT face=Arial
color=#0000ff size=2>Arnd Wippermann</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=281312611-03082008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV><BR>
<DIV class=OutlookMessageHeader lang=de dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>Von:</B> mapserver-users-bounces@lists.osgeo.org
[mailto:mapserver-users-bounces@lists.osgeo.org] <B>Im Auftrag von </B>Bill
Thoen<BR><B>Gesendet:</B> Samstag, 2. August 2008 20:07<BR><B>An:</B>
mapserver-users@lists.osgeo.org<BR><B>Betreff:</B> [mapserver-users] MapServer
Animation Examples of Pipeline Flow?<BR></FONT><BR></DIV>
<DIV></DIV><FONT size=+1><FONT face=sans-serif>I've got a little project that
requires an "eye-catching" display of flow through a network of gas pipelines.
I'm using MapServer 5.0.3 (with AGG) on Fedora Core 9 and I want to stick with
open source technology if possible.<BR><BR>Are there any examples out there of
MapServer showing animation effects along a linear feature (i.e. road, river,
pipeline, information flowlines, etc.) that I could look at to get some
ideas?<BR><BR>The first thought I had was to move colored dots along a pipeline
in the direction of flow and use a timer to pace the animation. Each dot would
represent the day's load from a source and they would move based on pipe
diameter, pressure and other parameters that affect flow. This works, but the
down side is that eventually you have a lot of objects to juggle and performance
goes to heck.<BR><BR>Then I thought of using a series of textures for each
pipeline segment and swapping them iteratively to simulate an animating.
<BR><BR>What won't work is rendering the entire map image each time; that would
go from eye-catching to mind-numbing pretty fast. So is there a way with
MapServer to display a map base, but allow for objects to be "floated" on top in
such away that I don't have to re-render the the entire map each time? (like an
AJAX tool for mapserver?)<BR><BR>If anyone has any ideas or knows of examples
they could point me to, I'd appreciate it.<BR><BR>- Bill
Thoen<BR><BR></FONT></FONT></BODY></HTML>