[OpenLayers-Users] Google + WMS = misalign

[Gregor at HostGIS]

> As to your problem: Are you sure the transformation from whatever projection
> your data was originally in to the sphericalMercator is done correctly by
> whatever mapserving software you have?

I was wondering about that too. Hrm. This is MapServer and PROJ.4 The 
original data is in EPSG:23031, which is UTM zone 31N with some European 
datum.

My PROJ EPSG file has this for 900913:
+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 
+k=1.0 +units=m +nadgrids=@null +no_defs

Now, example 1:
    http://eixos.planol.info/icc/
The two basemaps are from someone else's server in EPSG:23031, and the 
two overlays are from two more servers, one of them (Comerc) being our 
own. Nice alignment, indicating that our definition for 23031 must be right.

Then there's the Google one:
    http://eixos.planol.info/google/
With the above definition for 900913, the reprojection should happen 
properly, no?

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