Merge pull request #1483 from AnalyticalGraphicsInc/wallGeometry

Fix WallGeometry bug

Author: pjcozzi

CHANGES.md

@@ -49,6 +49,7 @@ Beta Releases
 * `BingMapsImageryProvider` now uses HTTPS by default for metadata and tiles when the document is loaded over HTTPS.
 * `RequestErrorEvent` now includes the headers that were returned with the error response.
 * Added `CesiumInspector` widget for graphics debugging.  In Cesium Viewer, it is enabled by using the query parameter `inspector=true`. 
+* Fixed `WallGeometry` bug that failed by removing positions that were less close together by less than 6 decimal places. [#1483](https://github.com/AnalyticalGraphicsInc/cesium/pull/1483)
 
 ### b25 - 2014-02-03
 

Source/Core/WallGeometryLibrary.js

@@ -51,7 +51,7 @@ define([
     }
 
     function latLonEquals(c0, c1) {
-        return ((CesiumMath.equalsEpsilon(c0.latitude, c1.latitude, CesiumMath.EPSILON6)) && (CesiumMath.equalsEpsilon(c0.longitude, c1.longitude, CesiumMath.EPSILON6)));
+        return ((CesiumMath.equalsEpsilon(c0.latitude, c1.latitude, CesiumMath.EPSILON14)) && (CesiumMath.equalsEpsilon(c0.longitude, c1.longitude, CesiumMath.EPSILON14)));
     }
 
     var scratchCartographic1 = new Cartographic();

Specs/Core/WallGeometrySpec.js

@@ -63,6 +63,17 @@ defineSuite([
         }).toThrowDeveloperError();
     });
 
+    it('does not throw when positions are unique but close', function() {
+        expect(function() {
+            return WallGeometry.createGeometry(new WallGeometry({
+                vertexFormat : VertexFormat.POSITION_ONLY,
+                positions    : ellipsoid.cartographicArrayToCartesianArray([
+                                    Cartographic.fromDegrees(-47.93121266896352,-15.771192496304398),
+                                    Cartographic.fromDegrees(-47.93119792786269,-15.771148001875085)])
+            }));
+        }).not.toThrowDeveloperError();
+    });
+
     it('creates positions relative to ellipsoid', function() {
         var coords = [
             Cartographic.fromDegrees(49.0, 18.0, 1000.0),