From c5ba5b0456a711d157e317f220e9c739226e7f50 Mon Sep 17 00:00:00 2001 From: Joar Wandborg Date: Tue, 10 Jan 2012 01:54:37 +0100 Subject: Installed leaflet in extlib --- .../geo/projection/Projection.SphericalMercator.js | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 extlib/leaflet/src/geo/projection/Projection.SphericalMercator.js (limited to 'extlib/leaflet/src/geo/projection/Projection.SphericalMercator.js') diff --git a/extlib/leaflet/src/geo/projection/Projection.SphericalMercator.js b/extlib/leaflet/src/geo/projection/Projection.SphericalMercator.js new file mode 100644 index 00000000..be0532ff --- /dev/null +++ b/extlib/leaflet/src/geo/projection/Projection.SphericalMercator.js @@ -0,0 +1,23 @@ + +L.Projection.SphericalMercator = { + MAX_LATITUDE: 85.0511287798, + + project: function(/*LatLng*/ latlng) /*-> Point*/ { + var d = L.LatLng.DEG_TO_RAD, + max = this.MAX_LATITUDE, + lat = Math.max(Math.min(max, latlng.lat), -max), + x = latlng.lng * d, + y = lat * d; + y = Math.log(Math.tan(Math.PI/4 + y/2)); + + return new L.Point(x, y); + }, + + unproject: function(/*Point*/ point, /*Boolean*/ unbounded) /*-> LatLng*/ { + var d = L.LatLng.RAD_TO_DEG, + lng = point.x * d, + lat = (2 * Math.atan(Math.exp(point.y)) - Math.PI/2) * d; + + return new L.LatLng(lat, lng, unbounded); + } +}; -- cgit v1.2.3