Swisstopo maps as overlay with Google Maps API

[Martin Weggler]

Hi

I got several Google Map APIs displaying swisstopo pixel maps as an option. All these maps are not displaying ( no error notice  in console ) since ca. Feb. 11, 2015. Any suggestions what I missed? Examples for swisstopo as overlay on a Google Map API welcomed.

Thank! Martin

Used code:

 

       var PixelkarteType = new google.maps.ImageMapType({


            isPng:         true,
            maxZoom:     20,
            minZoom:     7,
            opacity:    0.8,
            name:         "Landeskarte",
            tileSize:     new google.maps.Size(256, 256),
            credit:     'swisstopo',
            getTileUrl: function(coord, zoom) {
                var config = {
                    service: "http://proxy-wxs.ign.fr/url/http:/api.geo.admin.ch/main/mapproxy/service?",
                    layers: "ch.swisstopo.pixelkarte-farbe",
                    extension: "jpeg"
                };
                var url = WMSGetTileUrl(coord, zoom, config);
                return url;
            }
        });

       function WMSGetTileUrl(coord, zoom, config) {
            var proj = map.getProjection();
            var zfactor = Math.pow(2, zoom);
            var top = proj.fromPointToLatLng(new google.maps.Point(coord.x * 256 / zfactor, coord.y * 256 / zfactor));
            var bot = proj.fromPointToLatLng(new google.maps.Point((coord.x + 1) * 256 / zfactor, (coord.y + 1) * 256 / zfactor));

            var bbox = top.lng() + "," + bot.lat() + "," + bot.lng() + "," + top.lat();

            var url = config.service + "LAYERS={0}&FORMAT=image/{1}&SRS=EPSG:4326&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap" + "&STYLES=&BBOX={2}&WIDTH=256&HEIGHT=256";
            url = url.format(config.layers, config.extension, bbox);

            return url;
        }

[Marc Monnerat]

Hello Martin,

Bad and good news...

The bad news is the old api (http://api.geo.admin.ch) has been shut down last week. So everything http://api.geo.admin.ch is now dead.

The good news is that in the new  geo.admin.ch API (http://api3.geo.admin.ch, with a '3'), we  now offers a reprojection service. You don't have to go through the French API

You may have a look at the documentation and you try my example:

http://www.procrastinatio.org/mercator/google.html

Cheers,

Marc

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http://map.geo.admin.ch/

[Martin Weggler]

Hi Marc. Work perfectly again.

[Cédric MOULLET]

Hello,

If you want to use the tiles of the swiss federal spatial infrastructure, you need to register to the swisstopo web acccess WMTS http://www.swisstopo.admin.ch/internet/swisstopo/en/home/products/services/web_services/webaccess.html 

It's not allowed to use an external proxy to access the tiles, or do you have a specific agreement with IGN ?

Best regards,

Cédric

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