a lot of work on th map-creator

mapview/3D/MapView3D.h

@@ -8,6 +8,7 @@
 
 class MapModel;
 class GridModel;
+class GridRenderer;
 
 class MapView3D : public QGLWidget {
 
@@ -23,20 +24,31 @@ public:
 		update();
 	}
 
+	void layerChange() {
+		update();
+	}
+
 	/** get the underlying data-model */
 	MapModel* getModel() {return model;}
 
+	/** get the renderer to use for the grid */
+	GridRenderer* getGridRenderer() {return gridRenderer;}
+
+
 	/** show 3D rendered floorplan */
 	void showFloorplan();
 
 	/** show 3D rendered grid derived from the floorplan */
 	void showGrid();
 
+
 private:
 
 	/** the underlying data-model */
 	MapModel* model = nullptr;
+
 	GridModel* gridModel = nullptr;
+	GridRenderer* gridRenderer = nullptr;
 
 	Point3 rot;
 	Point3 center;