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Using Spline Handles

Question asked by Robert Jost Employee on Oct 26, 2012
Latest reply on Jul 3, 2015 by Guy Pommares

Hi All,

 

Rob with SolidWorks Product Definition here.  I have a question for anyone that uses spline handles. 

Handles.jpg

When using the handles on spline control points, note we can pull the handle on each side separately.  If you want each side to move symmetrically, you can hold down the Alt key and drag just one side. 

 

My question is, who out there wants to weight either side of a control point separately, like this?

Separate Handles.jpg

 

The reason I ask is because if you do, if affects the curvature of the spline.

Broken Curvature.jpg

 

I realize smooth surfaces are not the only use case for splines. So, if you typically do weight each side of a spline point separately, please let me know, and why you find this helpful.

 

Also, while we’re on the subject, currently it is possible to apply dimensions and constraints to spline handles in order to control various things (tangency weighting, angle etc.).  Is there anything additional you wish you could do to spline handles?  For example, set two to be equal, or rotate them separately? 

Rotate.jpg

 

If so, please let me know the use case as well.

 

Thanks everyone,

Rob

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