From e7dd28f6e04b360e9e094637e298cfc336fac533 Mon Sep 17 00:00:00 2001
From: "Justin R. Miller" <incanus@codesorcery.net>
Date: Wed, 5 Feb 2014 14:35:40 -0500
Subject: [PATCH] scale iOS pinches at gesture center

---
 ios/MBXViewController.mm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ios/MBXViewController.mm b/ios/MBXViewController.mm
index 560cbd292..8ed1136ee 100644
--- 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);
     }
 }