[OpenLayers-Users] Using custom data with the Map Viewer Service

[Christopher Schmidt]

On Tue, Jan 30, 2007 at 09:08:38PM +0000, Alexandre Leroux wrote:
> 
> Hi list,
> 
> I've been making unsuccessful tests to make the OpenLayers Map Viewer 
> Service work. My first small project is extremely simple: plot some 
> locations for carpooling on a webpage using OpenLayers.



>  From this page, http://trac.openlayers.org/wiki/MapViewerService
> when I try
> <iframe
> src="http://www.openlayers.org/viewer/?controls=panzoom,mouse&center=42,-71&zoom=10&data=http://www.openlayers.org/dev/examples/textfile.txt" 
> 
> style="width:400px; height:400px"></iframe>
> it works. But if I move the textfile.txt to another publicly accessible 
> website (and change the html accordingly), even without changing it, I 
> get a "Unhandled request return Bad Request" error. What's wrong?

Can you give a URL to a text file that is causing the error? This sounds
like it is likely to be a proxy error on the OpenLayers server -- the
proxy we run there is special to make it access other domains without
being an open proxy.  

To be honest, I don't highly recommend use of the MVS for anything other
than playing: setting up OpenLayers yourself is probably just as simple
as trying to make the MVS do what you want it to.

http://openlayers.org/doc/ will get you started, after which
http://openlayers.org/doc/reference.html#OpenLayers.Layer.Text is
probably the next step on your journey. So long as the data you are
loading is from the same domain as your HTML page, you should have no
problems.

Regards,
-- 
Christopher Schmidt
MetaCarta