Axis ticks and colorbar labels in bold (heatmap)?

I created a heatmap and I've got my axis labels in bold for better visibility. I had to use this '\bf\ thing to be able to do that, because, apparently, the normal way of:

h = heatmap(X, Y, C, 'FontName', 'Times New Roman', 'FontSize', 13, 'FontWeight', 'bold');

doesn't work with heatmaps.

Now, I'd like to have the axis ticks and the colorbar labels in bold as well. Is that a way to do so in matlab? I couldn't find a solution for that by myself.

Answer 1

[dpb]

Another case where TMW is too clever by far in creating an opaque graphics object -- you have to use the hidden properties to find the underlying pieces.

hAx=h.NodeChildren(3);          % return the heatmap underlying axes handle
hAx.FontWeight='bold';
hCB=h.NodeChildren(2);          % the wanted colorbar handle
hCB.FontWeight='bold';

You can further explore the handles in the NodeChildren array at your leisure.

And, add your voice to the complaints to TMW about their being hidden properties and this propensity to do such nasty things to their users causing them to waste precious billable hours on trivia. If I were still consulting actively, I'd raise holy cain with them. As is, I complain here every chance I get for what good it may do and have communicated my distaste for the policy directly.

[M.G.]

It works, thank you so much :)

[Tony Hu]

Thanks a lot! I still wonder, how do you know this very hidden property of heatmap? It's like a magic honestly.

[dpb]

The best tool out there is <Yair Altman's getundoc>. It works here, unfortunately, even it can't get at the pieces of some of the more recent stuff that is truly opaque or that erases the underlying object if try to add/change anything even if can find the handle...

[Tony Hu]

That's really a great function! I feel like discovering a new world just like Columbus

[gchao]

This works! Amazing! Thanks @dpb!

[dpb]

I tried a new sample heatmap to see; no changes so far... :(