Adding titles squashes one of my images in a TiledChartLayout (R2020a)

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Matt J 2021-4-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/818015-adding-titles-squashes-one-of-my-images-in-a-tiledchartlayout-r2020a

评论： Matt J 2021-5-4

采纳的回答： Benjamin Kraus

I have a TiledChartLayout of 6 images that initially looks like this:

Then, however, I add titles to the upper 5 images and it squashes the lower image to a flat line, resulting in this:

I tried resizing the figure, to no avail. Why might this be happening and how do I prevent it?

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Matt J 2021-4-30

Maybe pre-set the title of the axes?

Same result...

Matt J 2021-4-30

在 MATLAB Online 中打开

testFig.fig

Seems to work fine in R2021a:

h=openfig('testFig');

str='ABCDE';

ax=flip(findobj('Type','axes'));

for i=1:5, title(ax(i),str(i)); ax(i).FontSize=15; end

h.Position(4)=1.1*h.Position(4);

figure(h)

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采纳的回答

Benjamin Kraus 2021-4-30

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/818015-adding-titles-squashes-one-of-my-images-in-a-tiledchartlayout-r2020a#answer_689025

编辑：Benjamin Kraus 2021-4-30

在 MATLAB Online 中打开

I opened the figure you created, and I see you have set the GridSize to [2756 3840].

TiledChartLayout is attempting to keep each of those axes the same height, so when you add a title to any axes in the second row it is going to make space for a title on all 2755 rows in between the axes.

A better approach is to leverage the south tile of the TiledChartLayout.

Generically:

t = tiledlayout('flow');
for i = 1:5
    ax(i) = nexttile(t);
    imagesc(ax(i),rand(100));
    axis(ax(i),'off','square');
    title(ax(i), char('@'+i));
    ax(i).FontSize = 15;
end
ax(6) = axes(t);
imagesc(ax(6),linspace(0,1,256).*[1;1]);
colormap(t.Parent, gray);
ax(6).Layout.Tile = 'south';
pbaspect(ax(6),[20 1 1])
axis(ax(6),'off')

Or better yet, use the regular colorbar:

t = tiledlayout('flow');
for i = 1:5
    ax(i) = nexttile(t);
    imagesc(ax(i),rand(100));
    axis(ax(i),'off','square');
    title(ax(i), char('@'+i));
    ax(i).FontSize = 15;
end
colormap(t.Parent, gray);
c = colorbar;
c.Layout.Tile = 'south';

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Benjamin Kraus 2021-5-4

@Matt J TiledChartLayout first shipped in R2019b, but there have been some bug fixes and improvements over the past few releases. One improvement (made in R2020b) is in how TileChartLayout handles axes with constrained plot box aspect ratios. The Colorbar gained the Layout property in R2020b as well.

Matt J 2021-5-4

Then, is there any workaround that will let me constrain plot box aspect ratios in 2020a?

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