ab坐标系与xy坐标系的坐标换算
换算关系如下:A=(X-Xo)Cos a-(Y-Yo)Sin a X=Xo+ACos a+BSin aB=(Y-Yo)Cos a+(X-Xo)Sin a Y=Yo-ASin a+BCos aa=12.7509°其中Xo=3454640.507172 Yo=613643.230706 求A=2551.50 B=3016.60 的XY坐标
X = Xo + ACos a + BSin a
= 3454640.507172 + 2551.50 * Cos12.7509° + 3016.60 * Sin12.7509°
= 3457794.886356
Y = Yo - ASin a + BCos a
= 613643.230706 - 2551.50 * Sin12.7509° + 3016.60 * Cos12.7509°
= 616022.289296
坐标 X =3457794.886356,Y =616022.289296 。
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