Abstract: Curves and surfaces are often used in the product design. High-order equation surface, such as Z=f (x, y), is difficult to draw in 3D CAD software. A method that can rapidly and accurately draw high-order equation surface is introduced. It uses MATLAB to calculate the point matrix, saves the matrix to Notepod, transfers the data to *.ibl format which can be recognized by Pro/E, and applies Pro/E to generate and optimize the surface. This method can widen the ranges of surface design in Pro/E.

Key words: computer application, surface design, point matrix calculation, high-order equation surface