clear ItemizedOverlay

2013-02-01 04:33:51 +01:00
parent 019c39d8b8
commit be67647bdd
2 changed files with 16 additions and 1 deletions
--- a/src/org/oscim/renderer/overlays/BasicOverlay.java
+++ b/src/org/oscim/renderer/overlays/BasicOverlay.java
@@ -71,13 +71,21 @@ public abstract class BasicOverlay extends RenderOverlay {

 	@Override
 	public void compile() {
+		int newSize = layers.getSize();
+		if (newSize == 0) {
+			BufferObject.release(vbo);
+			vbo = null;
+			isReady = false;
+			return;
+		}
+
 		if (vbo == null) {
 			vbo = BufferObject.get(0);

 			if (vbo == null)
 				return;
 		}
-		int newSize = layers.getSize();
+
 		if (newSize > 0) {
 			if (GLRenderer.uploadLayers(layers, vbo, newSize, true))
 				isReady = true;