protected void requestTile(DrawContext dc, Tile tile) { Vec4 centroid = dc.getGlobe().computePointFromPosition(tile.getSector().getCentroid(), 0); if (this.getReferencePoint() != null) tile.setPriority(centroid.distanceTo3(this.getReferencePoint())); RequestTask task = new RequestTask(tile, this); this.getRequestQ().add(task); }