matlab slice without interpolation

Asked Apr 23 '14 at 00:28

Active Apr 23 '14 at 18:18

Viewed 291 times

I'm trying to visualize some 4-D data using matlab's slice tool. But because the array is 4x4x4, i would like to visualize it by slicing at all levels.

I use the following code to generate a plot:

data=round(rand(4,4,4));
h=slice(data,1:4,1:4,1:4);
set(h,'FaceAlpha',0.3,'EdgeAlpha',1)
colormap gray

But the plot ends up representing a 3x3x3 array.

So it looks like matlab is interpolating some values. I've searched around to no avail -- how can i visualize the 4D data without interpolation (i.e., so each value in the array is represented by a cell in the figure)?

edited Apr 23 '14 at 18:18

asked Apr 23 '14 at 00:28

Nolan Conaway

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What do you mean by 4D data? `rand(4,4,4)` is 3D. – Cape Code Apr 23 '14 at 00:37
@Jigg The value would probably be considered the 4th dimension in this case. – chappjc Apr 23 '14 at 00:56
Yeah, like a 3D surface represented by a 2D matrix. – Rafael Monteiro Apr 23 '14 at 00:58
There are 4 slices. Look at the number of faces, not the number of cubes. – chappjc Apr 23 '14 at 01:03
@chappjc I understand that there are four faces, but how can i generate a plot in which each voxel / cell represents an individual value in the data array? – Nolan Conaway Apr 23 '14 at 16:09
Check this question: http://stackoverflow.com/questions/9960456/matlab-need-to-make-a-4d-plot-3d-colour-color – yuk Apr 23 '14 at 18:54

matlab slice without interpolation

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