Therefore, when observing the sundial, it is important to first find out the projection position in the two different periods.
所以在观察日晷时，首先要了解两个不同时期晷针的投影位置。
It can also identify and monitor the position of the eyes, so it knows exactly where each image needs to be beamed, and passes this information on to the holographic-projection system.
它还可以发现与跟踪眼睛的位置，因此可以知道在什么位置投射什么图像，然后传递这种信息给全息投影系统。
It put forward an effective new method to resolve the inverse position by using the conversion of coordinates and projection in analytic geometry, the method was simulated and verified by MATLAB.
运用解析几何中的坐标变换和投影，得出一种有效求解位置反解的新方法，通过MATLAB软件对该方法进行了仿真和验证。
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