[晶体]心射切面投影

心射切面投影; 极平投影

conic projection───[测]圆锥投影

isometric projection───等角投影，正等侧投影

polyconic projection───[数]多圆锥投影

conic projections───[测]圆锥投影

axonometric projection───轴侧投影；三向图

polyconic projections───[数]多圆锥投影

trimetric projection───三度投影

approach is first posed by using gnomonic projection, based on the problem remaining unresolved, which is about the coating joint modeling and the joint overlap of spherical equilateral polygon.───根据极平投影作晶体图和计算机绘图原理，本文建立了一种新的晶体形态计算机绘图系统。

According to the principle of V. Goldschmidt 's gnomonic projection and crystal computer graphics, a new system of computer graphics of crystal shape is presented in the paper.───球面上共焦点之椭圆、双曲线，在球心投影中仍投影成共焦椭圆、双曲线。

The theory of gnomonic projection and its application───日晷投影原理及其应用

Ellipsoidal Gnomonic Projection by Double Projection Method───采用双重投影法的椭球面日晷投影