Mathematical Model of the Identical Slope Surface  

作　　者：Hu Jian-guo 1, Chen yue-ping 2 1. School of Urban Studies,Wuhan University,Wuhan 430072, Hubei, China 2.College of Politics and Administration,Wuhan University, Wuhan 430072,Hubei, China 

出　　处：《Wuhan University Journal of Natural Sciences》2002年第1期54-58,共5页武汉大学学报（自然科学英文版）

摘　　要：The formation of the identical slope surface and the method of construction are discussed. On the basement of building the parameter equation of variable-radius circle family envelope, the frequently used parameter equation of the identical slope surface of the top of taper moving along column helix, horizental arc and line is built. The equation can be used to construct the identical slope surface’s contours, gradient lines and three dimensional figures correctly.The formation of the identical slope surface and the method of construction are discussed. On the basement of building the parameter equation of variable-radius circle family envelope, the frequently used parameter equation of the identical slope surface of the top of taper moving along column helix, horizental arc and line is built. The equation can be used to construct the identical slope surface’s contours, gradient lines and three dimensional figures correctly.

关 键 词：Key words identical slope surface family of circles mathematical model envelope elevation projection CONTOURS 

分 类 号：O185.2[理学—数学] O186.11[理学—基础数学]