Archived discussion

Curve fit & Curve join

Other usage issuesWed, 04/29/2009 - 10:163 replies

QuestionAuthorWed, 04/29/2009 - 10:16

Hi, I have two questions about curves
1- Is it possible to create a curve using some points (point cloud) (point data may be noisy so an approximate curve is being created)
2- Is it possible to join two curves (or surfaces) that have same tangent values at intersection? (reverse of splitting)

Thanks for replies
Author

Discussion

3 archived replies

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01Commenter-1Wed, 04/29/2009 - 12:31

Hi,

to 1) take a look at GeomAPI_Interpolate

02Commenter-1Thu, 05/07/2009 - 20:13

to 2) i dont know if it work, but you could try to create edges out of the curves, fuse them and create a adaptor-curve out of the result-edge. Maybe you will get a single adaptor-curve which you can convert back into a normal curve-format

03Commenter-1Thu, 05/07/2009 - 20:25

An alternative would be to iterate over the curves and read out the point with the function "D0". Out of the points you get, you can create with "GeomAPI_Interpolate" a b-spline curve.
Dont know if a b-spline curve is ok, because it is a chain of bezier-curves. But this way you will have precision lost, dont know how exact the result curve have to be.