<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
I am looking to improve responsiveness.<br>
If the vector data is avalible on the client, features modifications,
layer toggling, selection, etc. is going to be very fast.<br>
Tooltips and links would put significantly less strain on the server.<br>
<br>
I would still use a "base map" to avoid having to transfer too much
coordinate data (ea. buldings).<br>
<br>
A second gain would be more control over the rendering process. I can
see problems with supporting <br>
all style options, and making them behave exactly the same. There would
also be problems with<br>
label overlapping and such.<br>
<br>
But I would not mind this, because I can tell the user to set it up in
a particular way to achieve the desired effect.<br>
<br>
<pre class="moz-signature" cols="72">Regards, Kenneth Skovhede, GEOGRAF A/S
</pre>
<br>
<br>
Zac Spitzer skrev:
<blockquote
cite="mid:7a85053e0806260143o761623b2me276f66744f4e9f4@mail.gmail.com"
type="cite">
<pre wrap="">So if your talking about a vector based viewer, you could hitch onto
the DWF support in the mapguide server.
I am, however, sceptical if there is much to be gained there
performance wise using GDI+ coz anything which is going
to really benefit from that sort of acceleration is going to require a
lot of vector data to be transferred down to the client
and then you are going to need to support all the stylisation options
for a mapguide layer plus all the interactions
between layers for labelling etc.
having everything as vectors in mapguide 6.5 was quite useful and
allowed for some funky tricks...
so to take a step back, what are the things your're looking to improve on?
personally i think there's some pretty easy http tweaks to the
mapguide server which would really,
really boost performance, like setting cache headers (last modified,
cache expiry) for tiles allowing a plain
old proxy server to serve tiles without any mapguide server overhead
z
On Thu, Jun 26, 2008 at 6:04 PM, Kenneth Skovhede, GEOGRAF A/S
<a class="moz-txt-link-rfc2396E" href="mailto:ks@geograf.dk"><ks@geograf.dk></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Silverlight uses GDI+, which also supports hardware acceleration.
I would prefer Silverlight over Java because it intergrates better with the
html DOM (IMO).
As for codebase, the current viewers are based on Javascript, and they are
limited to
manipulating pre-rendered images.
The DWF viewer is some of it, but it is still ActiveX based.
I suppose one could make plugins for all browsers, but it still difficult
to persuade regular web users to install it.
Since Silverlight/Moonlight is more likely to be installed already,
and backed by Microsoft, it will probably be easier.
Flash is another option, but it is terribly hard to work with (IMO).
Regards, Kenneth Skovhede, GEOGRAF A/S
Carl Jokl skrev:
I think that there could potentially be a number of alternatives to using an
Active X based viewer. I could see potential also for both Flash or Java to
create a viewer too. One problem with the Active X viewer in relation to the
clients of the company I work for is the security / administrative problem
for our clients. Organisations internet security policies could interfere
with deployment of an Active X control. I would think though that the same
issue would apply to a Java based viewer too. Silverlight might work better
in this regard.
One of the reasons I find the Java option interesting is the availability of
JOGL essentially allowing a Applet or Web Start application to be able to
take advantage of Hardware accelerated graphics. I don't know if any
alternative viewers have been worked on. If much of MapGuide is open source
would that include the viewer? If so it might be possible to start from the
existing viewer source code and port it to another platform.
Kenneth Skovhede, GEOGRAF A/S wrote:
Has anyone started or is considering starting development of a viewer in
Silverlight/Moonlight?
Such a viewer should be able to achieve performance that is comparable
to the MapGuide 6.5 viewer,
without the need for an ActiveX plugin.
--
Regards, Kenneth Skovhede, GEOGRAF A/S
_______________________________________________
mapguide-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:mapguide-users@lists.osgeo.org">mapguide-users@lists.osgeo.org</a>
<a class="moz-txt-link-freetext" href="http://lists.osgeo.org/mailman/listinfo/mapguide-users">http://lists.osgeo.org/mailman/listinfo/mapguide-users</a>
_______________________________________________
mapguide-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:mapguide-users@lists.osgeo.org">mapguide-users@lists.osgeo.org</a>
<a class="moz-txt-link-freetext" href="http://lists.osgeo.org/mailman/listinfo/mapguide-users">http://lists.osgeo.org/mailman/listinfo/mapguide-users</a>
</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
</blockquote>
</body>
</html>