Geometry and Interpolation of Curves and Surfaces

This text takes a practical step-by-step approach to algebraic curves and surface interpolation motivated by the understanding of the many applications in engineering analysis approximation and curve plotting problems. Because of its usefulness for computing the algebraic approach is the main theme but a brief discussion of the synthetic approach is also presented as a way of gaining additional insight before proceeding with the algebraic manipulation. The authors start with simple interpolation including splines and extend this in an intuitive fashion to the production of conic sections. They then introduce projective coordinates as tools for dealing with higher order curves and singular points. They present many applications and concrete examples including parabolic interpolation geometric approximation and the numerical solution of trajectory problems. In the final chapter they apply the basic theory to the construction of finite element basis functions and surface interpolants over nonregular shapes. Professionals students and researchers in applied mathematics solid modeling graphics robotics and engineering design and analysis will find this a useful reference.