Set root object for scene hierarchy. Root objectcoordinate system becomes scene global coordinate system.
为阶层式场景设置根对象,根对象的坐标系会成为场景全局坐标系。
2
Moving objectcoordinate measurement is performed using laser tracking measurement system (LTS) that is based on spherical coordinate method.
在球坐标激光跟踪测量系统中采用球坐标法可将空间运动物体的三维坐标求出。
3
The coordinate transformation matrix based on the direction cosine parameters from the objectcoordinate system to the world coordinate system is derived by vector algebra.