1 files changed, 7 insertions, 1 deletions
diff --git a/src/positioning/qlocationutils_p.h b/src/positioning/qlocationutils_p.h
index d9e6524a..e3881f6f 100644
--- a/src/positioning/qlocationutils_p.h
+++ b/src/positioning/qlocationutils_p.h
@@ -229,7 +229,7 @@ public:
         return 6371007.2;
     }
 
-    inline static double earthMeanDiameter()
+    inline static double earthMeanCircumference()
     {
         return earthMeanRadius() * 2.0 * M_PI;
     }
@@ -256,6 +256,12 @@ public:
         return wrapLong(centerLongitude - leftOffset);
     }
 
+    static qreal metersPerPixel(qreal zoomLevel, const QGeoCoordinate &coordinate)
+    {
+        const qreal metersPerTile = earthMeanCircumference() * std::cos(radians(coordinate.latitude())) / std::pow(2, zoomLevel);
+        return metersPerTile / 256.0;
+    }
+
     /*
         returns the NMEA sentence type.
     */