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OpenLayers has nice support for vectors. It supports many formats, you
can easily add WKT geometries for example. This is the best way to go
if you want to add simple or dynamic overlays.<br>
The postcode finder you mentioned uses a tiled layer. Such a layer can
be rendered using Mapnik. I have a nice example in [1]: Google Hybrid
like, but with OSM data on top of their aerial images (unfortunately my
site is Dutch, but it shows the idea).<br>
<br>
Cheers,<br>
Steven<br>
<br>
<br>
[1]
<a class="moz-txt-link-freetext" href="http://squall.student.utwente.nl/betonning/waterkaart.html?zoom=14&lat=53.17767&lon=5.41759&layers=0B0FT">http://squall.student.utwente.nl/betonning/waterkaart.html?zoom=14&lat=53.17767&lon=5.41759&layers=0B0FT</a><br>
<br>
<br>
Peter Körner schreef:
<blockquote cite="mid:4AB8AD6A.101@mazdermind.de" type="cite">
<pre wrap="">John Smith schrieb:
</pre>
<blockquote type="cite">
<pre wrap="">2009/9/22 Peter Körner <a class="moz-txt-link-rfc2396E" href="mailto:osm-lists@mazdermind.de"><osm-lists@mazdermind.de></a>:
</pre>
<blockquote type="cite">
<pre wrap="">You may want to take a look at <a class="moz-txt-link-freetext" href="http://topo.geofabrik.de/">http://topo.geofabrik.de/</a>
</pre>
</blockquote>
<pre wrap="">I can't read German, is there a download link or something?
</pre>
</blockquote>
<pre wrap=""><!---->
Oh I'm sorry I missread your mail..
I thought you wanted to have hill-shading for your map ;)
As far as I understand you, take a look on openlayers [0]
As shown on [1] it supports drawing vector-data on maps. As I don't have
any special knowledge about the usage, I can't help you any further, but
I'm sure so. here will.
Peter
[0] <a class="moz-txt-link-freetext" href="http://openlayers.org/">http://openlayers.org/</a>
[1] <a class="moz-txt-link-freetext" href="http://openlayers.org/dev/examples/behavior-fixed-http-gml.html">http://openlayers.org/dev/examples/behavior-fixed-http-gml.html</a>
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