Plotting discretized field in 2D

7 次查看（过去 30 天）

显示更早的评论

Spyros Polychronopoulos 2018-6-12

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/405177-plotting-discretized-field-in-2d

评论： Anton Semechko 2018-6-12

采纳的回答： Anton Semechko

在 MATLAB Online 中打开

I have x,y Cartesian Coordinates and a value next to them that I would like to plot in color in the corresponding x,y.

xy = linspace(0,20,11);
x_y_value = [(combvec(xy,xy) )' rand(121,1)];

Here I would like to plot 2x2 squares at x,y (two first columns of x_y_value matrix) colored according to the value (third column of x_y_value matrix).

I am looking something like the attached image.

Thank you

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Anton Semechko 2018-6-12

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/405177-plotting-discretized-field-in-2d#answer_324263

在 MATLAB Online 中打开

Here is an example:

x_lim=[0 20];
x=linspace(x_lim(1),x_lim(2),11);
[X,Y]=meshgrid(x);
F=randn(size(X)).*X-randn(size(X)).*Y;
figure('color','w')
imagesc(x_lim,x_lim,F)
axis equal
set(gca,'XLim',x_lim+[-1 01],'YLim',x_lim+[-1 1])