本帖最后由 kong12 于 2009-9-9 22:06 编辑
( {# \0 X5 h0 N( G) C. r- ^7 C, X
太平洋战争二维坐标系详解 * G# d/ @6 ~8 e9 B( I! K
! c7 [2 q2 N- _ G$ S- N; C例如: 8 A4 I% E' q7 d7 ~
坐标55,67 . L% i; t* ?7 K1 U9 s
我们用x,y,分别代表这两个坐标。 x=55 y=67
) i0 U/ B9 _% d" i, W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。
& E2 Y g5 s4 o$ t8 N2 G
5 y n$ L+ g2 ]: L8 G7 @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。
- M6 `6 p/ z4 o3 p; F5 @如图所示:
7 S% [, T; i6 k6 m- X2 w ``````````````
4 M0 k9 k, T3 A. C``````````````````` _3 `7 l \: U! X( Y @4 d% F
```````````````````│ 0 o" v& f$ i& ?
```````````````````│
' F# N+ @7 Y/ G; m* l- W```````````````````│ 6 y0 X+ G- D; n* { P& \5 ^; a
```````````````````│
) f6 r. h d3 m2 k2 w1 r````````───────┼──────→右(x轴) % D! U2 ~* D- O7 v& K u/ ~( }
```````````````````│
5 F' b$ ]1 d/ c; Z' g; [1 ^```````````````````│ 8 |2 ?4 [: q% c, k0 b' X5 ~! o8 p
```````````````````│ + L z, o! e4 [: r- U# l
```````````````````│ 3 q( g1 O1 I4 t; R& u4 g
↓
2 s6 W: ]- r2 E1 \# j0 ? 下(y轴)* D$ t! I7 U4 S/ v% q
````````````````太平洋战争二维坐标系 |