How to plot the points of intersection between a sliced plane (MRI data) and a line?

I have a 3d matrix representing a volume.

I would like to take two points with Data Cursor, plot a line connecting that plot, and then on vertical and horizontal slices of that volume (3D MRI head) see the point where line penetrated the slice.

Thanks.

[Tanguy]

Hi Tomislav,

You can use the line tool of imtool3D (line button on the right of the viewer)

load mristack.mat
tool = imtool3D(mristack);
tool.setAspectRatio([1 1 5]); % pixel size 1x1x5 mm3

You'll get that

Then switch to axial view and do the same

Hope that helps!

Answer 1

[Sean de Wolski]

Might want to try FEX:slice-o-matic

[Tomislav]

Thanks.

Answer 2

[Matt J]

RBLINE will probably be a useful tool for making this.

[Tomislav]

I cant get it to work for 3D. In 2D its a nice tool, but I need to cross a line trough 3D axis.

Thanks.

[Matt J]

I don't think you can draw a line interactively in 3D, for reasons we discussed here.