Research on Contours Made by Rapid Prototyping Technology

Abstract:

Using triangulation to generate contours is time-consuming and it needs lots of post-processing work. This paper presents a new contour generation method based on Rapid Prototyping technology. It stratifies point clouds by adopting Rapid Prototyping technology. The feature points are derived by calculated the weighted coordinates of points of the upper and lower layers. The feature points are projected onto a plane and converted to grid image. The image outline is extracted and edge tracking is performed by the line segment of the grid. Finally B-spline fitting is used to generate the contours. Experiment has shown that the proposed method not only generates contour lines with good quality but also improve the efficiency of operations by reducing the process of building a triangular network.

Key words:Contour; Rapid prototyping technology; Stratification thickness; Characteristic points; Row and column line segment