Mr. Daniel Floden 0 Report post Posted December 4, 2013 Hi I've tried to understand how to do this the most straight forward way but I cannot find the suitable functions for it.I want to do a generic curve with x and y inputs. And the x and y needs to be functions of a number of predefined B-spline curves.So if I for instance would like to set x as (A^2 * sin B ), where A and B are predefined B-spline curves in my project. How do I do this the most effective way by feature programming? BRDaniel Share this post Link to post Share on other sites
Karsten Wenzke 12 Report post Posted December 4, 2013 Hey Daniel, You can find a sample project 'genericcurve' and find it attached (documentation Browser-> Samples -> genericcurve). Additionally I attached a project file (GenericCurveFtrDef) with your specifications. Best Regards Karsten GenericCurveFtrDef.fdbgenericcurveSample.fdb Share this post Link to post Share on other sites
Mr. Claus Abt 14 Report post Posted December 5, 2013 Hi Daniel,In principle you have to be aware if you are using f(t) or f(x(t)). If you are mapping x=t you can speed up your function. This is possible by using Greville spaced bspline points, see picture below I found this excerpt on https://syllabus.byu.edu/view/SnfjQFxAdIyY.html#scheduleContainer chapter 6 on bsplines. There are more sources if you search the internet. Have funClaus Share this post Link to post Share on other sites