3D plot

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zozo 2011-12-19

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/24278-3d-plot

回答： James Ryland 2017-5-11

Antenna_X_Pos=[-0.0012;0.1419;-0.0672;-0.1121;0.1173;0.0653;-0.1458;0];
Antenna_Y_Pos=[0.1495;-0.0374;-0.1328;0.0896;0.0880;-0.1347;-0.0340;0];   
Antenna_Z_Pos=[0.1269;0.0798;0.0428;0.0002;-0.0407;-0.0816;-0.1249;0];
%scatter3(Antenna_X_Pos,Antenna_Y_Pos,Antenna_Z_Pos),view(-90,90)
%grid on
for j=1:360
   theta(j)= j / 180 *pi;  % [Edited, Jan Simon: inlined "degtorad()"]
   for m=1:90
       sita(m)= m / 180 *pi;
[SP_X(j,m) SP_Y(j,m) SP_Z(j,m)] = sph2cart(theta(j),sita(m),10); 
        for i=1:numel(Antenna_X_Pos)
        Distance(i,j,m) = sqrt(((Antenna_X_Pos(i) - SP_X(j,m))^2 +(Antenna_Y_Pos(i) - SP_Y(j,m))^2+(Antenna_Z_Pos(i) - SP_Z(j,m))^2));
        end
     end
  end
       Distance

How can I plot Distance in 3D (using i,j,m) ?

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Walter Roberson 2011-12-20

You cannot surface plot an 8 x 360 x 90 array. The closest you can come is to use isosurface()

zozo 2011-12-20

thank you @walter

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回答（1 个）

James Ryland 2017-5-11

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/24278-3d-plot#answer_266664

If you store your distance data as 3D array 8 x 360 x 90 you have several ways to visualize what it looks like.

Both of these solutions turn 3D scaler fields into voxels with color and transparency, thus allowing you to visualize 3D density or distance fields.

Solution 1: Volumetric 3 is a full matlab application for visualizing layered 3D density matrices. It was designed to work with fmri and mri but it can handle arbitrary 3D arrays stored as .mat files.

https://www.mathworks.com/matlabcentral/fileexchange/59161-volumetric-3?s_tid=srchtitle

Solution 2: A much simpler tool is Vol3D. But with a lot of programming on your end you can get it to do pretty much anything volumetric 3 does, in that they use highly similar (though distinct) techniques for generating visualizations.