Set aspect ratio in tilelayout
138 ビュー (過去 30 日間)
古いコメントを表示
When I run this code, the two plots are not each "square" (aspect ratio 1:1)
function [] = plotSVD( A )
A = [1, 2; 0, 2];
theta = linspace(0,2*pi, 1000);
x1 = cos(theta);
y1 = sin(theta);
tempBecauseMatlabIsStupid = A*[x1;y1];
x2 = tempBecauseMatlabIsStupid(1,:);
y2 = tempBecauseMatlabIsStupid(2,:);
% Two plots
tiledlayout(1,2) % Requires R2019b or later
ax1 = nexttile;
pbaspect(ax1,[1 1 1]); % doesn't do anything
axis equal; % doesn't do anything
plot(ax1,x1,y1)
ax2 = nexttile;
pbaspect(ax2,[1 1 1]); % doesn't do anything
axis equal; % doesn't do anything
plot(ax2,x2,y2)
end
Currently, to make them "square", I have to manually adjust the width of the window.
How can I make MATLAB print them "square"? Ideally, I'd like the figure to show in a window AND save to a PDF, with each of the two plots in the figure having an aspect ratio of 1:1
3 件のコメント
Adam Danz
2020 年 9 月 21 日
編集済み: Adam Danz
2020 年 9 月 21 日
That's because you are applying it incorrectly.
"% doesn't do anything"
Those lines are doing exactly what they should be doing but you're losing those settings when you plot data to the axes.
See my answer for the correct way to apply these settings.
採用された回答
Adam Danz
2020 年 9 月 21 日
編集済み: Adam Danz
2020 年 9 月 21 日
You either need to apply the settings after plotting the data or you need to execute "hold on" after applying the settings, before doing the plotting. I suggest doing the prior.
tiledlayout(1,2)
ax1 = nexttile;
plot(ax1,x1,y1)
axis equal; % <---- move to after-plot
daspect(ax1,[1 1 1]); % <---- move to after-plot
pbaspect(ax1,[1 1 1]); % <---- move to after-plot
or
tiledlayout(1,2)
axis equal;
daspect(ax1,[1 1 1]);
pbaspect(ax1,[1 1 1]);
hold on % <------- add this
ax1 = nexttile;
plot(ax1,x1,y1)
Demo: difference betwteen DataAspectRatio and Plot Box Asepct Ratio
When you set axis equal, the DataAspectRatio is set to [1 1 1] and the associated mode properties are set to manual. Also, the “stretch-to-fill” behavior is disabled. So, no need to set daspect when using axis equal.
pdadpect sets the plot box aspect ratio which is different than the DataAspectRatio. Here's a demo showing the difference:
Default axes within a figure that has been expanded horiziontally a bit. Note that the x and y ticks are the same but the grid does not form squares.
x = 1:20;
y = x*.8;
plot(x,y)
grid on
set(gca, 'XTick', 0:5:20, 'YTick', 0:5:20)
DataAspectRatio equal. Now the grid forms squares but the axis itself is not square. The x axis has a larger range than the y axis.
axis equal
Plot box aspect ratio equal. Now the axis is square as well.
pbaspect([1 1 1])
Note that this can also be achieved by setting the xlim and ylim to the same range. In fact, this method is often preferred and gives you more control over the range of values covered by the axes.
% instead of pbaspect([1 1 1])
xlim([0,20])
ylim([0,20])
2 件のコメント
Adam Danz
2020 年 9 月 21 日
I added to my answer to explain how axis equal and pbaspect differ. If something still doesn't make sense, I'd be happy to explain more.
その他の回答 (0 件)
参考
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!