本帖最后由 kong12 于 2009-9-9 22:06 编辑 & }: I* }" M, p
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太平洋战争二维坐标系详解
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6 ?3 A* X: C8 h) b: l例如:
+ B1 i+ U P" E% o, _5 u: r坐标55,67 " R6 P- h% D' ^, ]5 O
我们用x,y,分别代表这两个坐标。 x=55 y=67# w1 m6 v, x* a# X+ p5 m. o7 E
那么,x就是指向正右的,y是指向正下。大地图最左上角是零点。 ' P+ z, [ S+ w5 X8 u+ j8 R. {9 Y
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值得注意的是,我们这里的坐标不是象大家所想的那样,它不同于常用的平面直角坐标系。
! m! X; t3 ~" J3 ?; b/ @如图所示: 5 M- ?# ]: I6 p. I1 L6 k/ h% {; B0 O
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````````───────┼──────→右(x轴) 7 f" f: E5 y- P7 K q
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下(y轴)
+ {) G; Q+ f( l) q" N# p) g7 L5 S* H- P````````````````太平洋战争二维坐标系 |