本帖最后由 kong12 于 2009-9-9 22:06 编辑
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: q% E F/ \- F6 M9 \" S太平洋战争二维坐标系详解
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例如： 6 ]* \4 c5 s! x+ O( Z
坐标55,67 E7 f% f" o' a& ^- a
我们用x，y，分别代表这两个坐标。 x=55 y=67
( {/ V$ O' F+ @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 K8 N; R0 ~. ?7 }3 G. ^如图所示：
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``````````````````` - d) D" |( K2 B7 Y$ j2 @ E
```````````````````│
# }4 q+ \! H1 l9 S" Z```````````````````│ ( N. l1 ]; \% |( ?1 C
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5 k: ]: A( Q! J9 g7 s( l3 }4 v: P4 y& I```````````````````│ 7 A( I* s* `, C$ U
````````───────┼──────→右（x轴）
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* I3 ?4 P' D% y```````````````````│
. n6 Q) x* I# }; ]```````````````````│ ' _4 c, p1 n$ j$ A" n w3 U
```````````````````│
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下（y轴）# i' f+ V( C" [9 R; k( C0 o4 [
````````````````太平洋战争二维坐标系 | 
发表于 2009-9-8 19:34
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发表于 2009-9-9 21:33
| 