On Jul 11, 2012, at 1:13 AM, crdueck wrote: > i have a few questions regarding working with ON_BezierCurves.
You may want to use the underlying ON_Curve base class. > I want to > evaluate the tangents at the start and end points of a bezier curve. the > function ON_BezierCurve::TangentAt() seems to be what i want, but it > takes a double as its argument instead of a point. what does the double > represent? distance from the beginning of the curve? how can i get the > tangent at the beginning/end points of the curve? Yep, it's the "t" distance along the curve. Look for many other instances of TangentAt() in src/librt/primitives/opennurbs_ext.h Cheers! Sean ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ BRL-CAD Developer mailing list brlcad-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/brlcad-devel
