通过七参数空间坐标转换可将WGS84坐标转换至地方坐标。
The seven-parameter space transformation model can be used to obtain local coordinates from observed WGS84 coordinates.
然后经过一系列空间坐标转换,将恒星视位置坐标统一转换到观测点坐标,得到恒星在指定时刻相对于观测者的视住置;
Then, the star visional coordinate is converted into the observation coordinate, and the star visional position is achieved in accordance with the observe at the named time.
视向量能够在全局坐标系中通过视点坐标减去表面坐标来创建,并且要把结果转换到切线空间中。
The eye vector can be created in global coordinates by subtracting a surface position from the eye position and transforming the resulting vector into tangent space.
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