matlab - 如何在 Matlab 中绘制特定的等高线

Question

考虑这个例子：

X = 0:0.01:1;
Y = 0:0.01:1;
[x,y] = meshgrid(X,Y);
z = sin(x.*y);
contourf(x,y,z,'ShowText','on')

轮廓的值是自动确定的。如何绘制具有特定值（例如 [0.1,0.3,0.44,0.63,0.78,0.89]）的特定等高线？

Answer 1

如果所需的值是

  v = [0.1,0.3,0.44,0.63,0.78,0.89]

那么我们有

X = 0:0.01:1;
Y = 0:0.01:1;
[x,y] = meshgrid(X,Y);
z = sin(x.*y);
contourf(x,y,z,[0.1,0.3,0.44,0.63,0.78,0.89],'ShowText','on')

矢量“v”的位置必须在“z”之后。