How to plot 3D heat map in Matlab

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Kaushal Kishore
Kaushal Kishore 2021-6-13
评论： Kaushal Kishore 2021-6-14
Hi. I have (x,y,z) coordinates with measured values called (w) corresponding to these (x,y,z) coordinates. I want to produce a heat map for the measured value (w) in 3D. Is there anyway to do that.
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Adam Danz
Adam Danz 2021-6-14
Ran in:
You could try a bubble chart if surf doesn't work out for you.
data = [
0 0 0.2 3
0.5 0 0.3 6
1 0 0.4 8
1.5 0 0.5 3
2 0 0.6 2
0 0.5 0.2 5
0.5 0.5 0.3 4
1 0.5 0.4 3
1.5 0.5 0.5 8
2 0.5 0.6 2
0 1 0.2 3
0.5 1 0.3 5
1 1 0.4 6
1.5 1 0.5 1
2 1 0.6 2
0 1.5 0.2 3
0.5 1.5 0.3 6
1 1.5 0.4 4
1.5 1.5 0.5 6
2 1.5 0.6 8
0 2 0.2 6
0.5 2 0.3 2
1 2 0.4 4
1.5 2 0.5 6
2 2 0.6 4];
bubblechart3(data(:,1),data(:,2),data(:,3),ones(size(data,1),1),data(:,4),'MarkerEdgeColor','none')

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采纳的回答

Image Analyst
Image Analyst 2021-6-14
There is not much heat to plot in that small data set. You might just visualize it with plot3() and make the markers somewhat large.
If you want to interpolate between the few discrete points, you can use scatteredInterpolant.
F = scatteredInterpolant(x,y,z,v) creates a 3-D interpolant of the form v = F(x,y,z).
I'm attaching a 2-D demo (not 3-D)

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