In this paper, with the help of properties of P-linear below bounded points, tangent cones, cone k-interior points, projective cones, the geometric char-acteriz
An interpolation scheme constructing shape preserving piecewise de-gree 2k parametric polynomial curves is presented. For the given data set {Qi=(x1,yi) }n i-0,
This paper proposes an approach of constructing planar piecewiseclosed generalized Ball curve of 4th or 5th degree with all edges tangent to a givencontrol poly