Plot surface from non-anonymus function
2 ビュー (過去 30 日間)
古いコメントを表示
Santiago Ortiz Laverde
2021 年 2 月 27 日
コメント済み: Star Strider
2021 年 2 月 27 日
Hello guys,
I'd like to plot a surface from a global function. I don't know how to create the function, so it is applied to every value in a multidimensional array (mesh grid). There plenty of examples using anonymous functions, but I haven't found any from a non-anonymous one (which I call "global").
Take this function as an example
function z = test(w)
x = w(1);
y = w(2);
z = 2*x.^2 + 2*y.^2 +10*(1.1*y.^2 +3*x.^2).^0.5;
end
Is it possible?
Regards,
Santiago
0 件のコメント
採用された回答
Star Strider
2021 年 2 月 27 日
See if this does what you want —
function z = test(w)
x = w{1};
y = w{2};
z = 2*x.^2 + 2*y.^2 +10*(1.1*y.^2 +3*x.^2).^0.5;
end
x = -10:10;
y = -15:5;
[W{1},W{2}] = ndgrid(x,y);
Z = test(W);
figure
surf(W{1},W{2},Z)
grid on
Note that I created ‘w’ as cell arrays to pass its elements as matrices. Other than that change, your function is as you wrote it.
2 件のコメント
その他の回答 (1 件)
Hernia Baby
2021 年 2 月 27 日
編集済み: Hernia Baby
2021 年 2 月 27 日
clc,clear,close all;
w = [1:10;2:11];
x = w(1,:);
y = w(2,:);
f = @(x,y) 2*x.^2 + 2*y.^2 +10*(1.1*y.^2 +3*x.^2).^0.5;
[X,Y] = meshgrid(x,y);
z = f(X,Y);
figure
surf(X,Y,z)
grid on
0 件のコメント
参考
カテゴリ
Help Center および File Exchange で Graphics Object Programming についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!