nakarte

commit 3fb738bce9d3c37917e9876596005e91cb0d44ea
parent 5dc166de76527a2a935de1ba2f50e918d9281e36
Author: Sergej Orlov <wladimirych@gmail.com>
Date:   Sun, 19 Mar 2017 02:09:19 +0300

[print] even more precise page latLng bounds calculation: account for different datum radiuses

Diffstat:
M
src/lib/leaflet.control.printPages/pageFeature.js
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/lib/leaflet.control.printPages/pageFeature.js b/src/lib/leaflet.control.printPages/pageFeature.js
@@ -35,9 +35,10 @@ const PageFeature = L.Marker.extend({
         },
 
         _getLatLngBounds: function() {
+
             const centerLatLng = this.getLatLng();
             const centerMerc = L.Projection.SphericalMercator.project(centerLatLng);
-            const mercatorScale = Math.cos(centerLatLng.lat * Math.PI / 180);
+            const mercatorScale = Math.cos(centerLatLng.lat * Math.PI / 180) * L.CRS.Earth.R / L.Projection.SphericalMercator.R;
             const mercatorPageSize = L.point(...this.paperSize).multiplyBy(this.scale / 10 / mercatorScale);
             let sw = centerMerc.subtract(mercatorPageSize.divideBy(2));
             let ne = centerMerc.add(mercatorPageSize.divideBy(2));