摘要
由画法几何原理可知平面面积等于其正投影面积乘以该平面与投影面夹角的余弦。将此关系转移到曲面的投影 ,可建立曲面面积的直观、精确求解方法。而应用曲面展开直接为计算机提供了精确。
According to principle of descriptive geometry, the area of plane equals projection of the plane divided by cosine between plane and projection of plane. visual and exact solution of curved surface is built when the relationship is turned to projection of curved surface. But development of the curved surface is used to provided exact and fast solution with computer immediately.
出处
《浙江工业大学学报》
CAS
2000年第S1期14-18,共5页
Journal of Zhejiang University of Technology
关键词
曲面
法线
展开
计算机
curved surface
math
projection
development
computer
