Research On Geometric Constraint Representation Equation Between Two Cubes Of Bezier Curve

Computer Aided Design technology is a kind of technology that use hardware and software of computer to do modeling, modify, analyze or optimize work.It is a main symbol of CAD technology which is the SDRC company proposing parametric design and variational design. Many mechanical design problems in designing of the CAD can be treated as geometric constraint solving. At present, The algorithms of geometric constraint solving mainly construct geometric graph, including points, lines and conic curves. But geometric graph often apply cubic curve or more frequencies curve in practical mechanical design. The thesis proposes a special cubic Bezier curve as a special geometry primitive, This algorithm not only expands the drawing scope of geometric constraint solving but also gives a symbol solution of geometric constraint equation between two special cubic Bezier curve, at last, the example is effective by proving.