Mr. Bodo Hasubek 3 Report post Posted July 31, 2016 Hi all, I am fighting a bit with offset curves. The plan is to create an offset curve that is perpendicular w.r.t. to a surface curve on a given surface. So I set up a domain curve and set it as the ThicknessCurve in my offset curve.Nothing useful happens, unless I enable "BothSides" and at least a "BlendingPositionLE". However, I want neither: Neither an Offset on both sides, nor rounded edges.Here's the program snipped: // s is the surfce to which the offset should be perpendicular,// dc is a domaincurve created beforesurfacecurve base(s, dc) // Domaincurve for constant offsetline dcOC([0,1,0], [1,1,0]) offsetcurve offs(base)offs.setDistance(NULL) // Disable fixed offsetoffs.setThicknessCurve(dcOC)offs.setThicknessFactor(0.1)offs.setBothSides(true)offs.setBlendPositionLE(0.01) Am I missing something? Regards,Bodo Share this post Link to post Share on other sites
Mr. Carsten Fuetterer 9 Report post Posted August 1, 2016 Hi Bodo, yes, this functionality is right now just implemented for both sides true and used for impeller design. I have to ask our developers if it will be available in future releases for any offset curve type.In the meantime, you have to create to create a feature, which creates points which are normal to the surface on a surfacecurve and interpolate them. As a start you can use the feature curve normal point. best regards Carsten Share this post Link to post Share on other sites
Jörg 29 Report post Posted August 1, 2016 Hi Bodo, Thanks for this question - and sorry for not having it available right away. I think this is a good request, but also not absolutely trivial since approximation and accuracy assumptions are required. Is it ok for the time being to go for the solution that Carsten suggested? CheersJoerg Share this post Link to post Share on other sites
Jörg 29 Report post Posted August 1, 2016 Do you really want to activate both sides? So I guess your thickness function goes down to zero at the transition, right? Share this post Link to post Share on other sites
Mr. Bodo Hasubek 3 Report post Posted August 1, 2016 Hi Carsten and Jörg, thanks for the replies. I already wrote a feature that interpolates perpendicular points, no problem. Good enough for ship building ;-) I'm actually using it to create stringers along my hull surfaces. So in the ideal case the first and the last points should have the same x-coordinate as the original surface curve. However, that need's to be fixed manually for this special case, since this is an extra assumption. Cheers,Bodo Share this post Link to post Share on other sites