本帖最后由 kong12 于 2009-9-9 22:06 编辑
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( E# E( K, M% j太平洋战争二维坐标系详解
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例如： 9 k* ?% c/ u5 o- p2 T) r" O& } s
坐标55,67 " Q4 |4 p0 }3 f) m: E: v: {" Z
我们用x，y，分别代表这两个坐标。 x=55 y=67) u$ q$ y8 V. Z @, z
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。 ' ~( k# ?7 r, |! K$ r
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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。
4 [) m* \& i4 A% Q W如图所示：
" }. N% R0 e7 t1 c7 H" ~& O& Z ``````````````" i: k; U- ?' L/ A$ ^, e+ w' u/ P
``````````````````` 3 G4 z8 N. k4 n
```````````````````│ 5 k, d9 j5 H( P# _2 l7 z
```````````````````│ , S ]) e! O& K9 b2 y( o9 _
```````````````````│
" S$ J b8 K; p; D6 h# X0 }8 V, n" X```````````````````│ 4 \3 n0 R! K7 N/ c3 ]' u
````````───────┼──────→右（x轴） V H" J* w1 X) h# N
```````````````````│
! Y" J0 o' g; @ p W( p```````````````````│
' ]8 b0 }! P/ l& a```````````````````│ # O8 U" ?) k. P6 B& J
```````````````````│
7 h3 m% i5 a0 n+ F ↓% x. A% E# H0 n% j3 a
下（y轴）/ h; d* t3 X% {) G1 i5 \; }+ _: |& @
````````````````太平洋战争二维坐标系 | 
发表于 2009-9-8 19:34
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