JIG下使用正交的方法，考虑UCS

zhengjian211

1. 
   
2. if (ORTHOMODE == 1)
   
3.    {   
   
4.     Vector2d v1=new Vector2d (ptJigCenter.X-ptBase.X ,ptJigCenter.Y-ptBase.Y );
   
5.     double angle=v1.GetAngleTo (vecX2d);
   
6.     angle=Math.Abs (angle );//绝对值
   
7.     if (angle<0.25*Math.PI||(angle >0.75*Math.PI&&angle <1.25*Math.PI)) //偏向ucs的x轴，则锁定在x轴上
   
8.     {
   
9.      Plane p=new Plane (ptBase  ,mtUCS.CoordinateSystem3d.Yaxis );
   
10.      ptJigCenter=ptJigCenter .OrthoProject (p);
    
11.     }
    
12.     else//偏向ucs的Y轴，则锁定在Y轴上
    
13.     {
    
14.      Plane p=new Plane (ptBase,mtUCS.CoordinateSystem3d.Xaxis  );
    
15.      ptJigCenter=ptJigCenter .OrthoProject (p);
    
16.     }
    
17.    }
    

<br /> if (ORTHOMODE == 1)<br />    {    <br />     Vector2d v1=new Vector2d (ptJigCenter.X-ptBase.X ,ptJigCenter.Y-ptBase.Y );<br />     double angle=v1.GetAngleTo (vecX2d);<br />     angle=Math.Abs (angle );//绝对值<br />     if (angle<0.25*Math.PI||(angle >0.75*Math.PI&&angle <1.25*Math.PI)) //偏向ucs的x轴，则锁定在x轴上<br />     {<br />      Plane p=new Plane (ptBase  ,mtUCS.CoordinateSystem3d.Yaxis );<br />      ptJigCenter=ptJigCenter .OrthoProject (p);<br />     }<br />     else//偏向ucs的Y轴，则锁定在Y轴上<br />     {<br />      Plane p=new Plane (ptBase,mtUCS.CoordinateSystem3d.Xaxis  );<br />      ptJigCenter=ptJigCenter .OrthoProject (p);<br />     }<br />    }<br />