From d99ebea93075b67ba435374d2de641a76c8c7da1 Mon Sep 17 00:00:00 2001
From: Jason Wray <jason@mapbox.com>
Date: Sat, 6 May 2017 16:28:50 -0400
Subject: [PATCH] [ios] Check for NaN when calculating scale bar width

---
 platform/ios/src/MGLScaleBar.mm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/platform/ios/src/MGLScaleBar.mm b/platform/ios/src/MGLScaleBar.mm
index 383710ea3..1216e400b 100644
--- a/platform/ios/src/MGLScaleBar.mm
+++ b/platform/ios/src/MGLScaleBar.mm
@@ -161,7 +161,8 @@ static const CGFloat MGLFeetPerMeter = 3.28084;
 }
 
 - (CGFloat)actualWidth {
-    return self.row.distance / [self unitsPerPoint];
+    CGFloat width = self.row.distance / [self unitsPerPoint];
+    return !isnan(width) ? width : 0;
 }
 
 - (CGFloat)maximumWidth {