How to set subplots same size

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Jurrien Plijter
Jurrien Plijter 2021-7-22
评论： Zhongzheng Wang 2022-3-28
Hi all,
I would like to get my subplots the same size. It now defaults to the first picture below, but I would like to have it as in the second picture (created by manually sizing the figure). How to modify my code? Thanks for the help. The search function did not answer my question.
clear all; clc;
dt = 0.01;
time = 0;
iter_limit = 1000;
iter = 0;
next_initial = [0 0]; % [angle [rad] , angular velocity [rad/sec]];
ode45_check_initial = next_initial;
torque = 0;
torque_setting = 2;
x1_save=[];
x2_save=[];
time_save=[];
torque_save=[];
h=figure(1);
subplot(1,2,1); hold on;
fig_animation=plot(0,0,'k',0, -1,'.k','MarkerSize',20);
axis equal;
xlim([-1.5 1.5]);
ylim([-1.5 1.5]);
xlabel('x [m]');
ylabel('y [m]');
fig_rectangle=rectangle('Position',[-0.05 -0.05 0.1 0.1],'FaceColor','k');
subplot(1,2,2); hold on; grid on;
fig_timeplot=plot(0,0,'b',0,0,'r',0,0,'k');
hold on;
xlim([ 0 iter_limit*dt]);
ylim([-1.5*pi 1.5*pi]);
xlabel('time [s]');
ylabel('amplitude [-]');
legend('angle [rad]','angular velocity [rad/s]','applied torque [Nm]');
hold off;
  1 个评论
Zhongzheng Wang
Zhongzheng Wang 2022-3-28
HI! I am wondering if you solved this problem. I met the same issue.

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采纳的回答

Yazan
Yazan 2021-7-22
Because you are requesting to use the same length for the data units along each axis when you specified
axis equal
Matlab will not provide axes of the same width and height. A simple solution is to remove the line above.
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Yazan
Yazan 2021-7-23
编辑：Yazan 2021-7-23
Then a very simple solution is simply to increase the size of your figure, as you are doing manually by the mouse.
When you initiate your figure, use the following for example:
h = figure('Units', 'normalized', 'Position', [0.12 0.35 0.68 0.5]);
Generally, you can control the position, height, and width f the figure, and also axes. Read here and here. If you want to force two axes to have the same height and width, you can use the following:
% ax1 and ax2 are axes handles
ax1.Position(3:4) = ax2.Position(3:4);
Matlab however will override this command if this size of your figure does not allow having axes of the specified size.
Jurrien Plijter
Jurrien Plijter 2021-7-23
yeah I tried the ax1.position stuff earlier, but that indeed didn't work. Using figure(...) does work however, thanks for that! :)

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