How to remove colorbar and heatmap black borders?

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I need to remove colorabar and heatmap blck borders. Any idea?

Accepted Answer

Benjamin Kraus
Benjamin Kraus on 2 Dec 2020
Edited: Benjamin Kraus on 2 Mar 2022
If you want to remove the colorbar, you can set the ColorbarVisible property to 'off':
h = heatmap(magic(5));
h.ColorbarVisible = 'off';
Alternatively, use the colorbar command:
heatmap(magic(5))
colorbar off
To turn off the grid lines, you can either set the GridVisible property on heatmap:
h = heatmap(magic(5));
h.GridVisible = 'off';
or use the grid command:
heatmap(magic(5))
grid off
Heatmap does not provide any control over the outer border around the outside of the heatmap, or the color or thickness of the line, so if you want to change those things you will have to switch to a lower-level function like image or surface.
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More Answers (2)

Yue
Yue on 2 Mar 2022
h.GridVisible = 'off';
This will work to remove black borders.
  1 Comment
Benjamin Kraus
Benjamin Kraus on 2 Mar 2022
Thank you for reminding me about that. I've updated my answer above to reflect that you can set the GridVisible property. You can also use the grid command:
grid off

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Sophia Snipes
Sophia Snipes on 3 Aug 2022
For removing the black border of the colobar:
set(colorbar, 'Color', 'none')

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