- math.pow((line.endPointData().x() - line.startPointData().x()), 2) +
- math.pow((line.endPointData().y() - line.startPointData().y()), 2)
+ math.pow((line.endPoint().x() - line.startPoint().x()), 2) +
+ math.pow((line.endPoint().y() - line.startPoint().y()), 2)