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length of a interpolating C2 cubic spline (by Mark)
Is it possible for solvespace to show me the length of a (fully constrained) a interpolating C2 cubic spline ?
If that is possible, next step would be to constrain the length of some straght line (or other dimension) with the spline, and having the solver solve that. This might be a very tough job given the number of variables. Can other cad programs do this ?
If that is possible, next step would be to constrain the length of some straght line (or other dimension) with the spline, and having the solver solve that. This might be a very tough job given the number of variables. Can other cad programs do this ?
(no subject) (by Paul)
It should be possible to see it. Under the Analyze menu there is a Show Perimeter option.
Unfortunately since there is no closed form algebraic formula for the length of a cubic spline we can not make a constraint using the length.
Unfortunately since there is no closed form algebraic formula for the length of a cubic spline we can not make a constraint using the length.
(no subject) (by Paul)
The perimeter calculated will be based on the piecewise linear version of the curve used for display and triangulation. It will be more accurate with a lower chord tolerance setting.
(no subject) (by Mark)
thanks!
The Analyze -> Show Perimeter function works for me, with the default chord tolerance setting of 0.1 %.
The Analyze -> Show Perimeter function works for me, with the default chord tolerance setting of 0.1 %.
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