本帖最后由 kong12 于 2009-9-9 22:06 编辑 9 z- n. l8 U5 a: f1 Q4 D. X
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太平洋战争二维坐标系详解 3 q8 u8 C0 H* N& _8 @
- c' }6 A$ _2 z& c例如: , B( w `( T W% V# i2 ^/ O
坐标55,67 " O: w" ^& H* J& c' L1 l) w
我们用x,y,分别代表这两个坐标。 x=55 y=67$ m3 J( @; h/ x/ _; |" C
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。
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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。 6 d# W+ N7 V. H: ?
如图所示:
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````````───────┼──────→右(x轴) 2 H$ N' y: b4 q9 W4 i/ u
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下(y轴)4 i# _1 b7 e1 |% l
````````````````太平洋战争二维坐标系 |