protected void addPath(RenderableLayer layer, List<Position> positions, String displayName) {
ShapeAttributes attrs = new BasicShapeAttributes();
attrs.setOutlineWidth(5);
Path path = new Path(positions);
path.setPathType(AVKey.LINEAR);
path.setAltitudeMode(WorldWind.RELATIVE_TO_GROUND);
path.setAttributes(attrs);
path.setValue(AVKey.DISPLAY_NAME, displayName);
layer.addRenderable(path);
// Show how to make the colors vary along the paths.
path.setPositionColors(new ExamplePositionColors());
}
