[OpenLayers-Users] Google EPSG:900913 and Italian EPSG:3003

[Kiks]

I'm making some progress.. but nothing appens

I downloaded proj4js and added these references:
    <script src="OpenLayers-2.8/proj4js/lib/proj4js-compressed.js"></script>
    <SCRIPT type="text/javascript"
src="OpenLayers-2.8/proj4js/lib/projCode/tmerc.js"></SCRIPT>
    <SCRIPT type="text/javascript"
src="OpenLayers-2.8/proj4js/lib/projCode/merc.js"></SCRIPT>
    <SCRIPT type="text/javascript"
src="OpenLayers-2.8/proj4js/lib/defs/EPSG3003.js"></SCRIPT>
    <SCRIPT type="text/javascript"
src="OpenLayers-2.8/proj4js/lib/defs/EPSG900913.js"></SCRIPT>

I created the file the EPSG3003.js

Proj4js.defs["EPSG:3003"] = "+proj=tmerc +lat_0=0 +lon_0=9 +k=0.9996+x_0=0
+y_0=0 +ellps=intl +a=6378388.0 +rf=297.0000000000601+units=m +no_defs";

but the google satellite map is not beeing reprojected...


Kiks wrote:
> 
> Hello to all, 
> I've got a layer in Epsg:3003 for the zone near Parma in Italy.
> Coords in epsg: 3003 (Gauss Boaga projection, fuso ovest) are about E
> 1545000 ; N 4935000
> I would like to overlay a google maps satellite layer that is in
> epsg:900913
> 
> I tried this:
> 
> ...
>  var Gsat = new OpenLayers.Layer.Google("Google Satellite",
>                 { type: G_SATELLITE_MAP,
>                   'sphericalMercator': true,
>                     projection: new OpenLayers.Projection("EPSG:900913"),
>                     displayProjection: new
> OpenLayers.Projection("EPSG:3003"),
>                     units: "m",
>                     numZoomLevels: 18,
>                     maxResolution: 156543.0339,
>                     maxExtent: new OpenLayers.Bounds(-20037508,
> -20037508,20037508, 20037508.34),
>                     isBaselayer: true,
>                     'reproject': true
>                 });
> 
>   var Vect = new OpenLayers.Layer.WMS("Catasto e PTCP",
>                 "http://localhost/mapserverms4w/mapserv.exe",
>                 { map: 'CG.map',
>                     layers:
> 'ptcp_poly,ptcp_line,CG_GEO_PARTICELLE,CG_GEO_STRADE,CG_GEO_ACQUE,CG_GEO_FABBRICATI,CG_GEO_TESTI,CG_GEO_PARTICELLE_LABEL',
>                     format: 'aggpng24',
>                     //format: 'image/jpeg',
>                     transparent: 'off'
>                 },
>                 { maxExtent: new OpenLayers.Bounds(1530500, 4905500,
> 1575000, 4935000),
>                     scales: [500, 1000, 2000, 5000, 10000, 15000, 20000],
>                     units: 'm',
>                     projection: new OpenLayers.Projection("EPSG:3003"),
>                     displayProjection: new
> OpenLayers.Projection("EPSG:3003"), 
>                     gutter: 0,
>                     ratio: 1,
>                     wrapDateLine: true,
>                     isBaselayer: false,
>                     singleTile: true,
>                     transitionEffect: 'resize'
>                    
>                 });
> 
> ...
> 
> the problem is that if I activate the google layer, coords seem to be
> wrong: instead of 1545000; 4920000 for a point in Gauss Boaga, google
> satellite show me the same point at coord 1070000; 5539000
> 
> I can't understand where I'm wrong, because I'm quite sure that my
> mapserver layer is in EPSG:3003
> 
> Thanks to everybody,
> Kiks
> 
> 
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