Plotting a 3D matrix with plot3

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Amit Chakraborty
Amit Chakraborty 2022-9-21
评论： Bjorn Gustavsson 2022-9-22
I have 3 Matrices .
P = rand (2,2,3) ; % row=2, col =2, slice (z axis) =3
Q = rand (1,2);
R = rand (1,2);
I want to plot the Matrix P with corresonponding to Q and R matrix in such a way that :
In 3 dimensional plot => X axis : Q Matrix ; Y axis : R Matrix ; Z axis =P Matrix.
Thank you for your kind help !
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Amit Chakraborty
Amit Chakraborty 2022-9-22
编辑：Amit Chakraborty 2022-9-22
@Walter Roberson @Bjorn Gustavsson
So, I am giving the original matrix size of all the three vectors.
LambdaL = linspace(0.000001,0.0001,20); % [Matrix in X axis]
LambdaT = linspace(0.000001,0.0001,20); % [Matrix in Y axis]
slices = [1 2 3 4 5]; % [Matrix in Z axis]
The Final Resultant matrix P : rand(20,20,5)
Consider that Using LambdaL and LamdaT the matrix P is generated.
My plot should be like that :
1) in X-axis: LambdaL value should be there
2) in Y-axis: LambdaT value should be there
3) in Z axis : The value inside matrix P should be plotted.
So in short, for Slice no. 1 there will be 20x20 value , Same for Slice no. 2- Slice no. 5
Sorry, if I made confusion. Thank you both for your reply.

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回答（1 个）

KSSV
KSSV 2022-9-22
Ran in:
LambdaL = linspace(0.000001,0.0001,20); % [Matrix in X axis]
LambdaT = linspace(0.000001,0.0001,20); % [Matrix in Y axis]
z = [1 2 3 4 5]; % [Matrix in Z axis]
[LL,LT,Z] = meshgrid(LambdaL,LambdaT,z) ;
P = rand(20,20,5) ;
% plot plane at x = .000001
slice(LL,LT,Z,P,LambdaL(1),[],[])
% plot plane at x = .000001 and y = 0.0001
slice(LL,LT,Z,P,LambdaL(1),LambdaT(end),[])
% plot all planes along x
slice(LL,LT,Z,P,LambdaL,[],[])
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Bjorn Gustavsson
Bjorn Gustavsson 2022-9-22
Sometimes I have had success with manipulating the "alpha" properties of the surfaces slice generates:
phSl = slice(LL,LT,Z,P,LambdaL,[],[]);
set(phSl,'FaceAlpha',0.7)
shading flat
If that type of visualization is what you're after matlab is a bit lacking, and the best software I've encountered is vis5d - which is an open software project that does this type of volume renderings, primarily for weather-data.

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