Master curved forms in your architectural sketches with the grid method! This tutorial shows you how to use a perspective ...

Quadratic Non-uniform hyperbolic B-spline curves with a local parameter are presented in this paper. The changes of a local shape parameter will only affect one curve segment. With the increase or ...

For each branch/line, the BFM contains a nonconvex quadratic equality. A mathematical formulation of its convex hull is proposed, which is the tightest convex relaxation of this quadratic equation.

Sketching a timeless tribute Exhibition honors 20th-century artist with nearly 100 of his works on his 130th birth anniversary, Chen Nan reports.