Modified RadarVolume to suppress rendering when the vertex buffer is empty.

pdavidc · pdavidc · commit a3a561177335 · 2015-12-22T14:55:35.000-08:00
diff --git a/src/gov/nasa/worldwindx/examples/RadarVolume.java b/src/gov/nasa/worldwindx/examples/RadarVolume.java
@@ -233,7 +233,7 @@ protected boolean isOrderedRenderableValid(DrawContext dc)
     {
         ShapeData shapeData = this.getCurrent();
 
-        return shapeData.triangleVertices != null;
+        return shapeData.triangleVertices != null && shapeData.triangleVertices.capacity() > 0;
     }
 
     @Override

Original file line number	Diff line number	Diff line change
`@@ -233,7 +233,7 @@ protected boolean isOrderedRenderableValid(DrawContext dc)`
`233`	`233`	`{`
`234`	`234`	`ShapeData shapeData = this.getCurrent();`
`235`	`235`
`236`		`- return shapeData.triangleVertices != null;`
	`236`	`+ return shapeData.triangleVertices != null && shapeData.triangleVertices.capacity() > 0;`
`237`	`237`	`}`
`238`	`238`
`239`	`239`	`@Override`