[OpenLayers-Users] Failing with Ka-Map...

[Jeff Dege]

> -----Original Message-----
> From: Christopher Schmidt [mailto:crschmidt at crschmidt.net] 
> Sent: Thursday, August 10, 2006 12:25 PM
> To: Jeff Dege
> Cc: users at openlayers.org
> Subject: Re: [OpenLayers-Users] Failing with Ka-Map...
> 
> On Thu, Aug 10, 2006 at 10:47:07AM -0500, Jeff Dege wrote:
> > I have, after some playing around, an installation of ka-map v0.2
> > working against the gmap demo map data.  I'm now trying to 
> get the map
> > to display using OpenLayers' kamap layer type.
> > 
> > [...]
> > 
> > And this is what I get:
> > 
> >    http://www.visi.com/~jdege/openlayers-test.gif
> > 
> > What am I missing?
> 
> Currently, your ka-Map is being displayed in meters, but OpenLayers is
> working in degrees. It seems likely that this is cuasing the effect
> you're seeing. 

I noticed that.

> In order to work in a different unit in OpenLayers, you will 
> need to set
> two things: One, a different maxExtent, and two, a different
> maxResolution.
> 
> It looks like you need, as an option (alongside controls: []):
> 
>   maxExtent: new OpenLayers.Bounds(-2200000,-712631,3072800,3840000),
>   maxResolution: 'auto'
>
> This will set the extent to match the gmap75 demo (I believe 
> -- I pulled
> this from googling) and it will set the maxResolution such that the
> entire map is displayed within the div you're setting up. 

I tried it the other way round - I modified the gmap mapfile to use
decimal degrees and a latlong projection (WGS84), and then changed the
kamap layer to use degrees, and things still didn't work.

I tried your way, and that didn't work, either.  (The OpenLayers viewer
starting off zoomed all the way out - like it's still thinking these are
degrees.)
 
> If this doesn't work, let me know where I can find the gmap75 
> demo, and
> I'll get to work on trying to figure out how to solve the problem.

You can download gmap_ms4w_ms48.zip from the
http://dl.maptools.org/dl/ms4w/ page.

Thanks.