How can I plot the exported ASCII file from fluent?
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Hello,
I have exported the data (ASCII) of a plane from fluent. I want plot the data in MATLAB. It would be great if you can give an idea or share any code to do that.
In that file the data are as following:
nodenumber, x-coordinate, y-coordinate, z-coordinate, phase-2-vof
1, 2.549813583E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
2, 2.569617473E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
3, 2.609225254E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
4, 2.648833034E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
5, 2.688440814E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
6, 2.728048594E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
7, 2.767656374E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
8, 2.807264154E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
9, 2.846871934E+00, 3.150000000E+00,-2.192098192E-08, 0.000000000E+00
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채택된 답변
Rik
2020년 6월 12일
The code below simply ignores the z-values, since there only seems to be a single line in the yz plane that was actually considered.
data = readtable('vof_data2.txt');
x = data.x_coordinate;
y = data.y_coordinate;
z = data.z_coordinate;
p2v = data.phase_2_vof;
resolution=[300 300];
figure(1),clf(1)
subplot(1,2,1)
plot3(x,y,p2v,'.')
xlabel('x')
ylabel('y')
zlabel('phase value')
v=[];[v(1),v(2)]=view(180,90);
title('point cloud')
axis tight
axlim=axis;
%ignore z for now
F=scatteredInterpolant(x,y,p2v,'linear','none');
[X,Y]=ndgrid(linspace(min(x),max(x),resolution(1)),linspace(min(y),max(y),resolution(2)));
Z=F(X,Y);
subplot(1,2,2)
surf(X,Y,Z,'EdgeColor','none')
view(v(1),v(2))
axis(axlim)
댓글 수: 6
Rik
2022년 5월 24일
It can probably be done. First you need to load the data, then transform it into a format a display function can understand. The answer above interpolates the data to a surface, but that might not be required for your application.
Please post a separate question, in which you attach an example file, give an outline of what you want to achieve, and show what you have tried so far. Feel free to post a link here.
Mohamad Zulhisyam
2022년 5월 25일
Here is the link for the question https://www.mathworks.com/matlabcentral/answers/1726920-how-can-i-display-4th-dimensional-plot-using-ascii-data-from-ansys-fluent
Thank you.
추가 답변 (1개)
Ameer Hamza
2020년 6월 12일
If this is stored in a .txt file, then you can use readtable like this
data = readtable('test.txt');
x = data.x_coordinate;
y = data.y_coordinate;
z = data.z_coordinate;
p2v = data.phase_2_vof;
댓글 수: 12
Rik
2020년 6월 12일
How would you do it in words? What is the meaning of your image? What do the dimensions and the colors represent?
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