/// <summary>
/// 获取终点
/// </summary>
/// <param name="line"><see cref="ISketchLine"/></param>
/// <returns><see cref="ISketchPoint"/></returns>
public static ISketchPoint GetEndPoint2Ex(this ISketchLine line)
{
return(line.GetEndPointEx() as ISketchPoint);
}
/// <summary>
/// 获取起点和终点
/// </summary>
/// <param name="line"><see cref="ISketchLine"/></param>
/// <param name="startPoint">起点 <see cref="Vector3"/></param>
/// <param name="endPoint">终点 <see cref="Vector3"/></param>
public static void GetPoints(this ISketchLine line, out Vector3 startPoint, out Vector3 endPoint)
{
startPoint = line.GetStartPointEx();
endPoint = line.GetEndPointEx();
}