protected RegionShape(Sector sector) {
      super(sector);

      // Create the default border shape.
      this.setBorder(new SurfaceSector(sector));

      // The edges of the region shape should be constant lines of latitude and longitude.
      this.setPathType(AVKey.LINEAR);
      this.getBorder().setPathType(AVKey.LINEAR);

      // Setup default interior rendering attributes. Note that the interior rendering attributes
      // are
      // configured so only the SurfaceSector's interior is rendered.
      ShapeAttributes interiorAttrs = new BasicShapeAttributes();
      interiorAttrs.setDrawOutline(false);
      interiorAttrs.setInteriorMaterial(new Material(Color.WHITE));
      interiorAttrs.setInteriorOpacity(0.1);
      this.setAttributes(interiorAttrs);

      // Setup default border rendering attributes. Note that the border rendering attributes are
      // configured
      // so that only the SurfaceSector's outline is rendered.
      ShapeAttributes borderAttrs = new BasicShapeAttributes();
      borderAttrs.setDrawInterior(false);
      borderAttrs.setOutlineMaterial(new Material(Color.RED));
      borderAttrs.setOutlineOpacity(0.7);
      borderAttrs.setOutlineWidth(3);
      this.getBorder().setAttributes(borderAttrs);
    }
 public void setInteriorColor(Color color) {
   ShapeAttributes attr = this.getAttributes();
   attr.setInteriorMaterial(new Material(color));
   this.setAttributes(attr);
 }