public void addPath(List<Position> coords, String tooltip) {
        Path shape = new Path(coords);
        shape.setAttributes(attrPoly);
        shape.setAltitudeMode(WorldWind.CLAMP_TO_GROUND);
        shape.setPathType(AVKey.GREAT_CIRCLE);
        shape.setFollowTerrain(true);
        shape.setTerrainConformance(40);
        if (tooltip != null) {
            shape.setValue(AVKey.HOVER_TEXT, "hover: " + tooltip);
            shape.setValue(AVKey.ROLLOVER_TEXT, "rollover: " + tooltip);
        }
        addRenderable(shape);
    }