名称 

说明 

 

kIdentity 

零长度向量 

 

kXAxis 

X方向的单位向量 

 

kYAxis 

Y方向的单位向量 

 

kZAxis 

Z方向的单位向量 

 

x 

This is x, a member of class McGeVector3d. 

 

y 

This is y, a member of class McGeVector3d. 

 

z 

This is z, a member of class McGeVector3d.