public static void ChangeLine(string name, Coordinates coordinatesStart, Coordinates coordinatesEnd)
{
Tvary shapes = new Tvary();
Line line = (Line)shapes.returnShape(name);
line.x1 = coordinatesStart.x;
line.y1 = coordinatesStart.y;
line.x2 = coordinatesEnd.x;
line.y2 = coordinatesEnd.y;
}
