Adjustment of Contour Plot
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I have data consist of X(x coordinate) Y(y coordinate) Z(velocity). I created below countour plot with below code:
xyz = readmatrix('velocity.txt');
plot(xyz(:,1),xyz(:,2),'.')
I = scatteredInterpolant(xyz(:,1),xyz(:,2),xyz(:,3));
[x,y] = meshgrid(unique(xyz(:,1)),unique(xyz(:,2)));
contourf(x,y,I(x,y))
colorbar
However, I tried to plot contour graph with special software It gives more detail about ploting given below:
I want to plot in this format in Matlab.
-The contour line more smooth and rounded
-Contor line magnitude is given
Note: Iteration method is "Krigging" but in MATLAB it could be different I tried to plot contour graph similar to last image. Thank you.
4 个评论
The problem is that there’s nothing between the three values with the highest z-values to provide any contrast between them, so the interpolation functions correctly consider them as a continuum.
xyz = readmatrix('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1255417/velocity.txt');
x = xyz(:,1);
y = xyz(:,2);
z = xyz(:,3);
figure
stem3(x, y, z)
hold on
scatter3(x, y, z, 50, z, 'filled')
hold off
colormap(turbo)
view(160,30)
The only way to show them as specific isolated areas in the contourf plots would be to fill between them with some lower values. (I attempted that, however the result was weird, so I’m not posting it.)
.
JACK LONDON
2023-1-7
Adam Danz
2023-1-7
There are some kriging interpolation function on the file exchange you could try:
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2023-1-7
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