基于Z-buffer的工程图投影消隐算法  

Engineering Drawing Projection Hidden Line Removal Algorithm Based on Z-buffer

作　　者：付耀明 陶长城 FU Yao-ming;TAO Chang-cheng(School of Materials Science and Engineering,Hubei University of Automotive Technology,Shiyan 442000,China;Shengji Hengxin Industrial Equipment Technology Co.,Ltd,Shiyan 442000,China)

机构地区：[1]湖北汽车工业学院材料科学与工程学院,湖北十堰442000 [2]圣基恒信(十堰)工业装备技术有限公司,湖北十堰442000

出　　处：《电脑与电信》2024年第12期28-32,共5页Computer & Telecommunication

摘　　要：为了处理三维线框模型在二维平面上的投影问题,提出了一种新的物体空间消隐算法。该算法受Z-buffer算法启发,但与传统的Z-buffer算法不同,本算法将逐像素对比扩展为逐线段对比,通过储存每个拆分后线段的深度信息(Z值),对比线段的实际深度信息和可视深度信息,从而实现对线框模型的消隐,同时提高了计算效率。实验结果表明,该算法在提高图形的可读性和真实感方面具有显著效果,为工程制图提供了一种高效且准确的投影转换方法,具有重要的实际应用价值。To address the projection of 3D wireframe models onto a 2D plane,this study proposes a novel object-space hidden line removal algorithm.Inspired by the Z-buffer algorithm,this method ex-tends the comparison from pixel-by-pixel to line-by-line.By storing the depth information(Z-value)of each segmented line and comparing the actual depth information with the visible depth information,the algorithm effectively hides the lines of the wireframe model.This approach enhances computational efficiency.Experimental results demonstrate that the algorithm significantly improves the readability and realism of graphics,providing an efficient and accurate projection conversion method for engineering drawings,with substantial practical application value.

关 键 词：计算机图形学 线框模型 消隐算法 物体空间消隐 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]