数学建模:地貌图的完成
; O$ |8 U9 u4 h4 j' G
+ L7 E8 H+ j, M8 J8 V7 ~0 A
^, S2 T$ p% R1 `" u$ ~: G9 Q下面来简单介绍一下关于数学建模中的一些基本建模基础:如何对一个地貌进行建模
& ^. s$ p$ e- Q" O0 w' }& q0 U! y. [; g) c2 c% e
1、首先打开MATLAB软件,在其主界面的编辑器中写入下列代码:
/ Y3 k0 ], d5 x* y5 O. J+ \0 a% m% k
[x,y] = meshgrid(1:10); %构造测量网格
9 @) e8 B- w5 m) D6 s8 ~: J; e& Ih = [0,0.02,-0.12,0,-2.09,0,-0.58,-0.08,0,0;...
$ a2 ^1 |6 w, \5 y# Z- [$ z 0.02,0,0,-2.38,0,-4.96,0,0,0,-0.1;...
6 V1 P- `8 Q" J* D5 a 0,0.1,1,0,-3.04,0,-0.53,0,0.1,0;...
, Q+ v2 }% h" b) b9 J 0,0,0,3.52,0,0,0,0,0,0;..." W. L& B4 e- t$ \8 m* G0 e$ S
-0.43,-1.98,0,0,0,0.77,0,2.17,0,0;...
2 u( U+ X! S( f' V3 s# x6 M 0,0,-2.29,0,0.69,0,2.59,0,0.3,0;...
8 W2 @) T" ^3 e# f0 T! ^, x3 ~ s -0.09,-0.31,0,0,0,4.27,0,0,0,-0.01;...
- E0 z; c0 T' h6 d( ~, k$ T 0,0,0,5.13,7.4,0,1.89,0,0.04,0;...# }, ]7 j5 Z* |8 g5 Y) G
0.1,0,0.58,0,0,1.75,0,-0.11,0,0;...
! w0 T' V7 N7 R8 c0 h 0,-0.01,0,0,0.3,0,0,0,0,0.01]; %测量数据点
% r, I8 }8 p( b) x[xi,yi] = meshgrid(1:0.1:10); %构造插值网格
: p/ `% }9 d0 l* ~, ]' rhi = interp2(x,y,h,xi,yi,'spline'); %二维插值命令
: F% f% Q* W- N1 P0 y# qsurf(hi); %画出地貌图4 X! N/ _, S1 D3 v& C9 U
xlabel('X'),ylabel('Y'),zlabel('H'); %添加坐标轴名称; @( D# S% Y: K. H; d
$ F) Y2 S: F2 [2 W& I6 s T' z$ T. W
2、命名保存好之后,直接点击运行按钮,结果如下所示: I1 J- J$ J; c! E G, r6 x
, i. U# v; r4 v3 {8 s5 d, `
, g L, q* Q% X! Y0 H/ H
& B" k; `0 g" |( u3 b至此,关于地貌图的绘制基本介绍完毕,请大家继续关注!!!; w0 T8 z" [4 N( V
+ y+ c; t3 h6 i s- W
, a" H, d0 [/ G O# L9 l& s: [
|