This is a cagd library with the following functionality implemented so far

• splines (regular,periodic,rational).
• conic arc, circle, line.
• subdivide curve.
• split splines to bezier segments.
• extend splines.
• trim splines
• join splines
• interpolate points to form splines (both periodic and regular) using pchip.
• raise degree.
• insert knots.
• remove knot for curve fairing.
• cubic and quad approximation
• distance of a point to a curve.
• arc lengths of curves.
• implicitize 2d curves
• monomial and Bezier-Bernstein form of polynomial curves and change of basis.
• point inversion on spline to determine parameters.
• bspline surface, ruled surface, extrude.
• legendre polynomial form of bezier curves
• reduce degree of curves.
• hodographs of bsplines
• tessellating splines
• tight bbox computation of bsplines

My plan is to read up text books Hoschek/Farin/Piegl and translate the book ideas into code as much as I can in here. Well some ideas are new too 😄 The project uses fips to handle builds and catch to perform unit testing. Tested (via travis) with gcc 4.9 on osx and linux. On windows, i use vs2015.