Length of spline

Forum about TopSolid'Design 7 release.

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jacs
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TopSolid Module: TopSolid'Design
TopSolid Version: 7.6
Location: Los Angeles

Length of spline

Unread post by jacs » Thu Feb 04, 2016 1:37 am

Hi,
Anybody knows how to drive the length of a spline in TS7?
I have a spline with fix end points and I want to constrain the length of that spline to a given value.
When using the dimension tool in a sketch, it will let me put a length dimension but as a driven dimension and not a driving dimension :x

d.k.liu
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TopSolid Module: TopSolid'Design
TopSolid Version: 7.5

Re: Length of spline

Unread post by d.k.liu » Mon Feb 15, 2016 7:06 am

I don't have the most elegant solution to your problem but perhaps you can try using the 'optimize' command.
If you can parameterize your spline curve with a single variable x, e.g. angle of a control point
1. Create a 'Length parameter' L for the spline curve
2. Use 'Optimize Parameter' and fill in the following fields:
Measurement: L
Target: <desired length of spline>
Driver: x
3. Choose sensible min, max and tolerances etc.

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