dnyandevp Posted January 4, 2012 Share Posted January 4, 2012 I want to draw 3d arc using 3d point, how can we draw 3d arc in autocad? Please help me..... Quote Link to comment Share on other sites More sharing options...
eldon Posted January 4, 2012 Share Posted January 4, 2012 One way to draw a 3D arc is to set up a UCS based on the three 3D points. Then you can draw an arc through the three points. Then reset the UCS to World. Quote Link to comment Share on other sites More sharing options...
Dadgad Posted January 4, 2012 Share Posted January 4, 2012 That sounds right to me, as I don't believe there is any way to do it using 3DPOLYLINE, which lacks the niceties of the regular POLYLINE command. Quote Link to comment Share on other sites More sharing options...
JD Mather Posted January 4, 2012 Share Posted January 4, 2012 By definition an arc is 2D planar geometry. Set UCS to desired plane or rotate the arc to desired plane. Quote Link to comment Share on other sites More sharing options...
BIGAL Posted January 5, 2012 Share Posted January 5, 2012 Be aware that when you draw the arc in a true 3d plane when viewed from plan view it may appear elliptical. Quote Link to comment Share on other sites More sharing options...
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