Patent ID: 6441823
Filing Date: 2002-08-27
Classification: G06T

Abstract:
A computer curve construction system for constructing a curve that includes a plurality of curve components that are connected with a certain type of continuity, the system comprising:a user input device; a display device; and a processor coupled to the input device and the display device, wherein the processor responds to signals from the input device for generating a curve component from a group of curves consisting of a peak-point curve, a point-point curve, a point-tangent curve, a point curve and a curvature curve and providing output to the display device for displaying each selected curve component,the processor being operative to define and provide output for displaying each subsequent curve component after a first curve component connected to a previous curve component with a particular type of continuity in a category consisting of geometric order 0 (G0), geometric order 1 (G1) and geometric order 2 (G2).