fix ring classification

mapbox · Mar 16, 2016 · e4ec4c6 · e4ec4c6
1 parent 8a8f615
commit e4ec4c6
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/vectortilefeature.js b/lib/vectortilefeature.js
@@ -210,7 +210,7 @@ function classifyRings(rings) {
         var area = signedArea(rings[i]);
         if (area === 0) continue;
 
-        if (!ccw) ccw = area < 0;
+        if (ccw === undefined) ccw = area < 0;
 
         if (ccw === area < 0) {
             if (polygon) polygons.push(polygon);