Thanks Arnd, It works very good.
On the other hands, I have another question related with it.
I am overlaying google maps with mapguide's layers. The problem is that the
displaying scales are different.
Google maps MAPGUIDE
144000 100000
72000 52000
36000 27000
18000 14000
9028 7197
4514 3728
2257 1931
1129 1000
Then the overlay of these two layers (google and mapguide) doesn't coincide.
For example: The corner of the street1 and street2 in google layer is 200m
toward the north of
the that corner itself in mapguide layer. It happens due to that google
layer is to the scale of 1:2257 and mapguide layer is to the scale of
1:1931.
Is there any way that both layers have the same scales?
Regards
Arnd Wippermann wrote:
>
> Hi Rodolfo,
>
> the patch from the old post is really not needed and there are only 21
> zoomlevels for Wuppertal.
>
> Looking now at the question with a better understanding of OpenLayers, I
> see, that I have only to set the numZoomLevels for the map object and
> MAX_ZOOM_LEVEL for the Google layers.
>
> The default values are
>
> MAX_ZOOM_LEVEL = 19
> numZoomLevels = 16
>
> With the set
>
> MAX_ZOOM_LEVEL = 21 (0 - 21 => 22 numZoomLevels)
> numZoomLevels = 21+1
>
> i can get the result without any patch.
>
>
> var maxZOOMLEVEL = 21;
>
> map = new OpenLayers.Map('map',
> {
> maxExtent: new
> OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
> numZoomLevels: maxZOOMLEVEL+1,
> maxResolution: 156543.0399,
> units: 'm',
> projection: new OpenLayers.Projection("EPSG:900913")
> });
>
> var gsat = new OpenLayers.Layer.Google(
> "Google Satellite",
> {type: G_SATELLITE_MAP, sphericalMercator : true, MAX_ZOOM_LEVEL :
> maxZOOMLEVEL}
> );
>
> At http://gis.ibbeck.de/ginfo/ you can zoom up to 21 zoomlevels.
>
> I hope, that helps.
>
> Arnd Wippermann
>
> _______________________________________________
> Users mailing list
> [email protected]
> http://openlayers.org/mailman/listinfo/users
>
>
-----
Rodolfo Moreno
CivilEng
--
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