为什么？

不对称！用两根对称的曲线,spline/through point/assign curvatrues进行了定义，连接线左右不对称。为什么？（必须经过绿点）::6::6::6
    

tupian

Procedure:
  
  .Assign Slope/Curvature at an end point  
  .Snap the change Slope handle to the end point of another spline or a  
datum plane
  .select the symmetric option from the menu that appears.

Procedure:
  
  .Assign Slope/Curvature at an end point  
  .Snap the change Slope handle to the end point of another spline or a  
datum plane
  .select the symmetric option from the menu that appears.