scale iOS pinches at gesture center

2014-02-05 14:35:40 -05:00
parent 74b522ac6e
commit e7dd28f6e0
1 changed files with 3 additions and 1 deletions
--- a/ios/MBXViewController.mm
+++ b/ios/MBXViewController.mm
@@ -199,7 +199,9 @@ class MBXMapView

        CGFloat newZoom = self.zoom + (pinch.scale > 1 ? (pinch.scale / tolerance) : ((1 - pinch.scale) * -tolerance));

-        mapView->map.setScale(powf(2, newZoom));
+        double scale = mapView->map.getScale();
+        double new_scale = powf(2, newZoom);
+        mapView->map.scaleBy(new_scale / scale, [pinch locationInView:pinch.view].x, [pinch locationInView:pinch.view].y);
    }
 }