//----------------------------------------------------------
ofPolyline ofPolyline::fromRectangle(const ofRectangle& rect) {
    ofPolyline polyline;
    polyline.addVertex(rect.getMin());
    polyline.addVertex(rect.getMaxX(),rect.getMinY());
    polyline.addVertex(rect.getMax());
    polyline.addVertex(rect.getMinX(),rect.getMaxY());
    polyline.close();
    return polyline;
}