knuckle point in rhino

Discussion in 'Software' started by Brian.Lin, Nov 5, 2010.

  1. Brian.Lin
    Joined: Aug 2006
    Posts: 56
    Likes: 0, Points: 6, Legacy Rep: 10
    Location: TW

    Brian.Lin Junior Member

    Does Rhino can define a control point as knuckle?
    if yes, how to do it?

    thx.
     
  2. DCockey
    Joined: Oct 2009
    Posts: 5,005
    Likes: 493, Points: 83, Legacy Rep: 1485
    Location: Midcoast Maine

    DCockey Senior Member

    For discontinuous slope (aka kink or knuckle) in a degree 3 curve insert two additional control points, one on either side of the control point you want o modify. Then drag each of the added control points to the control point you want to modify. Use "Osnap" with "Point" on so the control points snap together when you drag them.

    If you just want discontinuous curvature but continuous slope follow a similar proceedure but only add one control point.

    Same proceedure for surfaces except you insert rows of control points and then drag the control points corresponding to where you want the kink.
     
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