本帖最后由 kong12 于 2009-9-9 22:06 编辑
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5 s0 p1 w1 ^5 l. x0 K* G/ w太平洋战争二维坐标系详解 : I6 M# t9 g* S( U! ?8 i4 f
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例如:
+ L7 [4 V! k5 K+ B坐标55,67
2 x! v2 B- \+ i; E' f2 d我们用x,y,分别代表这两个坐标。 x=55 y=672 G6 Y$ `! K( t. s2 l) ?& L5 D
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。 $ ^9 R7 a& \2 {: m9 }
如图所示:
( ^& b( U& v- D+ _3 b, b ``````````````
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# z$ J# o9 {; \& g3 I# [```````````````````│ 5 I" n7 b; f$ E5 |, r5 @
```````````````````│ $ N* ]1 I9 B6 e) }% `! G
```````````````````│
& m5 t" M# W( H. ^4 A```````````````````│ 9 X2 t' r% L$ w2 ~0 n7 s
````````───────┼──────→右(x轴)
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, B$ E& d# n0 p5 Z```````````````````│ ?6 J0 I" F% h. C# i3 g% _
```````````````````│ $ m. v/ B& r0 \- u4 {% {
```````````````````│ ( S+ }7 q) Z' p: k
↓
, ?, @; S. u) t- e5 K" i' H 下(y轴)4 G. |2 ~& ]6 n m m
````````````````太平洋战争二维坐标系 |