Occluded Line Removal for Wireframe Projection Drawing
Wireframe doesnt have the face information, so the occluded line of its projection drawing cant be eliminated by existing methods for solid. In this paper, an efficient algorithm for eliminating occluded line from projection drawing of wireframe is presented. In projection drawing, whether there is an intersection of two lines is identified by bounding box and directed triangle. Further, the visibility of intersection lines can be determined by projection model. The occlusion matrix make up for the lost depth information during projection. The connected matrix of topological relationships between vertices is renewed by an occlusion matrix, and then a new connected matrix can defined a new projection drawing without occluded line. Test results show the high efficiency and stability of this algorithm.
wireframe projection drawing occluded line intersection
Jun Zhao Yanmin Li
School of Mathematics, Physics and Software Engineering Lanzhou Jiaotong University Lanzhou, Gansu 730070, China
国际会议
太原
英文
451-454
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）