数学建模:地貌图的完成
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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
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. G- M" D; s% x6 v) E1 I& {3 c1、首先打开MATLAB软件,在其主界面的编辑器中写入下列代码:
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[x,y] = meshgrid(1:10); %构造测量网格
* w- [& e: @$ y K3 S( G6 H1 g- uh = [0,0.02,-0.12,0,-2.09,0,-0.58,-0.08,0,0;...& d R/ s; d+ j. L
0.02,0,0,-2.38,0,-4.96,0,0,0,-0.1;...' e2 {- U% V" r6 V+ }: ]% t
0,0.1,1,0,-3.04,0,-0.53,0,0.1,0;...
( g+ w1 i% S" u8 j 0,0,0,3.52,0,0,0,0,0,0;...0 ?' }- }% G! q' a
-0.43,-1.98,0,0,0,0.77,0,2.17,0,0;...* y) n% I$ ?/ V- y/ K
0,0,-2.29,0,0.69,0,2.59,0,0.3,0;...
' h/ y& m b9 u' o -0.09,-0.31,0,0,0,4.27,0,0,0,-0.01;...
2 e* T0 q5 s z# y, K5 v+ y% m 0,0,0,5.13,7.4,0,1.89,0,0.04,0;...
( S0 `# Y& B9 G+ o 0.1,0,0.58,0,0,1.75,0,-0.11,0,0;...
! o5 r% s, C1 ?! G, M' w1 X 0,-0.01,0,0,0.3,0,0,0,0,0.01]; %测量数据点
3 K$ Y8 Q; h7 h. {$ s+ t[xi,yi] = meshgrid(1:0.1:10); %构造插值网格
) @" r5 [ |; g( S phi = interp2(x,y,h,xi,yi,'spline'); %二维插值命令" w" Q6 R7 |! t
surf(hi); %画出地貌图' {# U8 ^; q8 F; D. N. g. d5 I. a
xlabel('X'),ylabel('Y'),zlabel('H'); %添加坐标轴名称- `9 E. }! U& v" b
3 X# _1 _- m1 Q# d8 w, C1 X2、命名保存好之后,直接点击运行按钮,结果如下所示:# s$ T$ K& F3 N. Z
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至此,关于地貌图的绘制基本介绍完毕,请大家继续关注!!!$ v: B4 h2 r+ h( J, G# U6 J/ L
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