How to plot 3D heat map in Matlab
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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.
7 个评论
Adam Danz
2021-6-13
Use surf(X,Y,Z,C) where x and y are vectors or matrices and z and c are matrices (C is your variable, w).
Kaushal Kishore
2021-6-13
Cris LaPierre
2021-6-13
Do your x and y vectors contain repeating values? I.e. do they represent a grid of coordinate pairs, or a single line of points?
Kaushal Kishore
2021-6-13
Kaushal Kishore
2021-6-13
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')
Kaushal Kishore
2021-6-14
采纳的回答
Image Analyst
2021-6-14
0 个投票
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.
I'm attaching a 2-D demo (not 3-D)
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