Antenna surface current distribution

I had an antenna design in CST microwave studio. I want to draw the surface current distribution of the antenna in Matlab. I export the. txt file of the surface current distribution from CST, please see the attached files. Is it possible to draw the surface current distribution of the antenna using the Matlab environment?

[darova]

You have nodes and some values in them. Do you have an order of how those vertices should be connected?

Face1 = [1 2 3];

Face2 = [6 7 8];

[irfan Ullah]

Well, thank you for your reply but I don't know about the order of vertices. The attached xlsx file is only surface data that I can extract from the CST simulator.

[darova]

try this

A = xlsread('Surface current.xlsx');
%%
x = A(:,1);
y = A(:,2);
z = A(:,3);
v1 = A(:,4);

xx = linspace(min(x),max(x),30);
yy = linspace(min(y),max(y),30);
zz = linspace(min(z),max(z),30);
[X,Y,Z] = meshgrid(xx,yy,zz);
V = griddata(x,y,z,v1,X,Y,Z);
%%
sx = [min(x)+5 max(x)-5];
sy = [min(y)+5 max(y)-5];
% sz = [min(z)+5 max(z)-5];
sz = linspace(min(z)+5,max(z)-5,5);
p = slice(X,Y,Z,V,sx,sy,sz);
set(p,'edgecolor',[1 1 1]*0.5)

axis equal vis3d

[irfan Ullah]

Thank you for your help. I have tried the code you suggested. The plot does not look right. I was expecting that the outcome should be the same to the examples provided on the Matlab website:https://uk.mathworks.com/help/antenna/ref/current.html

[darova]

You can try scatter3

ind = (v1-min(v1))/(max(v1)-min(v1))*254+1;
cmap = jet(255);
cmap = cmap(round(ind),:);
scatter3(x,y,z,10,cmap,'fill')
colorbar

It's the best you can do with pointcloud. See also isosurface

You need more information/data to create surface/body