Contactsheets for 3D-slices behave as 3D-surfaces

[rcassani]

This PR has as goal to have the same functionality in ContactSheets for 3D figures: MRI slices and surfaces. The difference was reported in this Forum thread:

https://neuroimage.usc.edu/forums/t/45757/10

With these changes, contact sheets from 3D MRI slices will now have:

• Time stamp
• Colorbar

These two elements will be hidden (as the current behaviour) if and only if there is not data (sources and TF) plotted on the MRI slices, AND volume contact sheets are requested.

For MRI slices: contactsheet Time with Data (source values)

Before	With this PR

For MRI slices: contactsheet Volume without Data

Before	With this PR

EDIT: Images have been updated to current state of PR

[rcassani]

@tmedani, @chinmaychinara91 could you provide some feedback on this PR.
It does look good to me.

[chinmaychinara91]

Open Default Anatomy MRI > Right click > Snapshot > Choose any of the View contact sheet and choose the defaults from Contact sheet GUI. Getting the error below:

When specified as a graphics object, first argument must be one or more axes objects.

Error in view_contactsheet (line 221)
    [az,el] = view(hAxes);

Error in figure_mri>@(h,ev)view_contactsheet(hFig,'volume','y',DefaultOutputDir) (line 1103)
        gui_component('MenuItem', jMenuSave, [], 'Volume contact sheet: Coronal',  IconLoader.ICON_CONTACTSHEET, [], @(h,ev)view_contactsheet(hFig, 'volume', 'y', DefaultOutputDir));

[rcassani]

@chinmaychinara91 Good catch, I forgot the calls from the MRI viewer

[tmedani]

all looks good to me,
thanks Ray

[tmedani]

One comment: is it better to have just one color bar?

[rcassani]

@tmedani, it is possible that the maximum of the colormap is set to local then it will be different across contactsheets.

@chinmaychinara91, commit 94f5313 handles the case you found. How about now?

[tmedani]

@tmedani, it is possible that the maximum of the colormap is set to local then it will be different across contactsheets.

I see, so it is then easier to tune each figure locally.

The thing that bothers me is the size of the figure, which is much smaller.

[chinmaychinara91]

@rcassani looks good now.

[rcassani]

The thing that bothers me is the size of the figure, which is much smaller.

This bothered as well. It has now been addressed!
EDIT: No yet

[tmedani]

Awesome :)

[rcassani]

Ok, this is now ready.

One of the changes, is that all contactsheets are obtained from 3D figures, even when initiated from the MRI viewer. This is to handle the time legend and colorbar.

Also the removal of the useless black background is now done across all the contact images, so the final composite image can be cut into equal size pieces, and all the pieces have the same spatial scale. This was not possible before as the removal was different for each (contact) image.