Multiple y axes with multiple plots on single x axis

Question

Tessa Kol 2021-3-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/782073-multiple-y-axes-with-multiple-plots-on-single-x-axis

评论： Adam Danz 2021-4-14

采纳的回答： Adam Danz

data.mat

在 MATLAB Online 中打开

Dear all,

I tried to plot three y-axis where each y-axis contains two lines. I used the approach described in this post: https://nl.mathworks.com/matlabcentral/answers/459385-multiple-y-axes-on-single-x-axis#answer_372987

However, the x-ticks and y-thicks overlap each other. How can I solve this?

close all
figure
grid on
ax1 = axes;
yyaxis left
plot(theta_p{5},dW_closing_winches{5},'linewidth',1.5)
hold on
plot(theta_p{6},dW_closing_winches{6},'linewidth',1.5)
pause(0.1)
xlabel('\theta [%]','FontWeight','bold')
ylabel('Work [J]','FontWeight','bold')
ax1.XTickMode = 'manual'; 
ax1.YTickMode = 'manual'; 
ax1.YLim = [min(ax1.YTick), max(ax1.YTick)];  % see [4]
ax1.XLimMode = 'manual'; 
grid(ax1,'on')
ytick = ax1.YTick;  
yyaxis right
plot(theta_p{5},dW_HDP{5},'linewidth',1.5)
hold on
plot(theta_p{6},dW_HDP{6},'linewidth',1.5)
ylabel('Work [J]','FontWeight','bold') 
ax2 = axes('position', ax1.Position);
plot(ax2,theta_p{5},(dW_closing_winches{5}+dW_HDP{5}),'k')
hold on
plot(ax2,theta_p{6},(dW_closing_winches{6}+dW_HDP{6}),'--k')
pause(0.1)
ax2.Color = 'none'; 
grid(ax2, 'on')
% Horizontally scale the y axis to alight the grid (again, be careful!)
ax2.XLim = ax1.XLim; 
ax2.XTick = ax1.XTick; 
ax2.YLimMode = 'manual'; 
dW_HDP{5} = ax2.YLim; 
ax2.YTick = linspace(dW_HDP{5}(1), dW_HDP{5}(2), length(ytick));      % see [2]
% horzontally offset y tick labels
ax2.YTickLabel = strcat(ax2.YTickLabel, {'       '}); 

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Answer 1

Adam Danz 2021-3-24

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/782073-multiple-y-axes-with-multiple-plots-on-single-x-axis#answer_657153

编辑：Adam Danz 2021-3-24

在 MATLAB Online 中打开

Take a look at these 3 lines below.

figure
grid on   
ax1 = axes;

Line 1 creates a new figure.

grid on not only turns on the grid but also creates axes.

ax1 = axes creates a second set of axes directly on top of the first axes.

To fix this, move grid on to some point after the axes are created and get into the habit of always using parent handles to specify the parent of a graphics object.

fig = figure();         % GET HANDLE
%  grid on              % REMOVE
ax1 = axes(fig);        % SPECIFY PARENT
yyaxis(ax1,'left')      % SPECIFY PARENT
plot(ax1,theta_p{5},dW_closing_winches{5},'linewidth',1.5)  % SPECIFY PARENT
hold(ax1,'on')          % SPECIFY PARENT
grid(ax1,'on')          % ADD THIS

you can do the rest :)

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Tessa Kol 2021-3-24

在 MATLAB Online 中打开

Is it also possible to use in combination with a for loop? So I can plot multiple data sets in one figure. No I have to manually add another plot with the code below.

close all
figure
ax1 = axes;
yyaxis left
p1=plot(theta_p{5},dW_closing_winches{5},'linewidth',1.5);
hold on
p2=plot(theta_p{6},dW_closing_winches{6},'linewidth',1.5);
xlabel('\theta [%]','FontWeight','bold')
ylabel('Work [J]','FontWeight','bold')
pause(0.1)
ax1.XTickMode = 'manual'; 
ax1.YTickMode = 'manual'; 
ax1.YLim = [min(ax1.YTick), max(ax1.YTick)];  % see [4]
ax1.XLimMode = 'manual'; 
grid(ax1,'on')
ytick = ax1.YTick;  
yyaxis right
p3=plot(theta_p{5},dW_HDP{5},'linewidth',1.5);
hold on
p4=plot(theta_p{6},dW_HDP{6},'linewidth',1.5);
ylabel('Work [J]','FontWeight','bold') 
ax2 = axes('position', ax1.Position);
p5=plot(ax2,theta_p{5},(dW_closing_winches{5}+dW_HDP{5}),'k');
hold on
p6=plot(ax2,theta_p{6},(dW_closing_winches{6}+dW_HDP{6}),'--k');
ylabel('Work [J]','FontWeight','bold')
pause(0.1)
ax2.Color = 'none'; 
grid(ax2, 'on')
% Horizontally scale the y axis to alight the grid
ax2.XLim = ax1.XLim; 
ax2.XTick = ax1.XTick; 
ax2.YLimMode = 'manual'; 
ax2.YTick = linspace(ax2.YLim(1), ax2.YLim(2), length(ytick));      % see [2]
% horzontally offset y tick labels
ax2.YTickLabel = strcat(ax2.YTickLabel, {'              '}); 
set(gcf, 'Position',  [500 200 900 760])
title(['Work flat surface - nemaX grab - ',Simulation_names{5},' & ',Simulation_names{6}])
legend([p1;p2;p3;p4;p5;p6],{'Work_{closing winches T50 / 4 s}','Work_{closing winches T50 / 5 s}','Work_{HDP T50 / 4 s}','Work_{HDP T50 / 5 s}','Work_{total T50 / 4 s}','Work_{total T50 / 5 s}'},'location','northwest')
annotation('textbox',[0.12 0.06 0 0],'String','Open','FontWeight','bold');
annotation('textbox',[0.85 0.06 0 0],'String','Closed','FontWeight','bold');

Tessa Kol 2021-4-14

在 MATLAB Online 中打开

I figured out what the problem was. I added the following line of code:

set(gcf, 'Position', [500 200 900 760])

But this was only set for the last two plots (p5 and p6). Therefore, those plots didn't align with the previous ones. I added the above line of code to the other plots and it works perfectly.

I want to thank you for your help and I learned a lot from the advised functions.