In missile test, the transformation methods from earth rectangularcoordinate to geodetic coordinate are often used.
在靶场试验任务中，经常要用到地心直角坐标到大地坐标的转换算法。
2
Rectangularcoordinate must be input when we use computer to draw CAM contour line or use numerically controlled machine to process it.
采用计算机绘制和数控机床加工凸轮廓线时，都要输入直角坐标值。
3
And the paper achieved conversion from the completed polar coordinates to rectangularcoordinate, and solved two key problems, dead address and blind zone phenomenon.