How to put voxel intensity value in the plotting

Question

Amit Chakraborty 2022-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/1642080-how-to-put-voxel-intensity-value-in-the-plotting

回答： Chetan 2023-11-16

My question is that here we can see the three different co-ordinates but I want to show the voxel intensity value also with this . Can any one suggest me how to do it ?

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Answer 1

Chetan 2023-11-16

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https://ww2.mathworks.cn/matlabcentral/answers/1642080-how-to-put-voxel-intensity-value-in-the-plotting#answer_1353662

在 MATLAB Online 中打开

Hello @Amit Chakraborty,

I understand you're looking to plot 3D data and display voxel intensity in the tooltip.

You can achieve this with MATLAB's `datacursormode` function. Here's a brief example:

% Sample data
x = rand(100,1);
y = rand(100,1);
z = rand(100,1);
v = rand(100,1)*100; % Voxel intensity
% 3D scatter plot
scatter3(x, y, z, 'filled');
% Customize tooltip to include voxel intensity
h = datacursormode;
h.UpdateFcn = @(~,eventObj) {['X: ',num2str(eventObj.Position(1))], ...
    ['Y: ',num2str(eventObj.Position(2))], ...
    ['Z: ',num2str(eventObj.Position(3))], ...
    ['Voxel Intensity: ',num2str(v(eventObj.DataIndex))]};