animatedline fails after the first iteration
1 view (last 30 days)
Show older comments
Youstina E
on 6 Aug 2020
Commented: Walter Roberson
on 7 Aug 2020
Hi,
It was previously working but now I am getting an empty plot in the second subplot after the first iteration. Code is as follows:
for i=1:10:length(tu)
ax1= subplot(2,1,1)
pcolor(lontemp(findnearest(150,lontemp):findnearest(160, lontemp)),lattemp, hc')
Y1=get(gca,'ylim');
set(ax1,'dataaspectratio',[.7 cos((Y1(2)+Y1(1))/5/180*pi) 1], 'position',[0.204,0.5,0.55,0.42])
ax2=subplot(2,1,2)
if i==1
curve1=animatedline;
curve2=animatedline;
curve3=animatedline;
curve2.Color='blue';
curve3.Color='red';
set(ax2,'Xlim',[1 365],'Ylim', [min(T1) max(T1)], 'Position',[0.13,0.11,0.775,0.29], 'plotboxaspectratio',[1,0.31,0.31])
grid on
addpoints(curve1,m(i),n(i));
hold on
addpoints(curve2,m(i),T1(i));
addpoints(curve3,m(i),T2(i));
drawnow;
pause(0.1)
else
grid on
addpoints(curve1,m(i),n(i));
addpoints(curve2,m(i),T1(i));
addpoints(curve3,m(i),T2(i));
drawnow;
pause(.1);
end
end
Accepted Answer
Walter Roberson
on 6 Aug 2020
Create the subplot and modify their position before the loop. Make sure to pass the axes to the hold() and grid() calls.
At present you keep calling subplot and then modify the position. However each time you call subplot it figures out where the plot belongs based on the n m index parameters, and if it finds any axes that over overlap those coordinates but not exactly the same coordinates then it deletes the old one. So subplot() all your axes into existence first before you set the position of any of them, and record the axes handles and do not subplot in a loop unless you do not mind old axes potentially being deleted.
4 Comments
dpb
on 7 Aug 2020
pcolor as above would be totally immaterial to subplot(2,1,2)
Does not the above generate the expected lines?
Walter Roberson
on 7 Aug 2020
hAx1 = subplot(2,1,1);
hAx2 = subplot(2,1,2);
pcolor(hAx1, lontemp(findnearest(150,lontemp):findnearest(160, lontemp)),lattemp, squeeze(hc(:,:,i))');
Y1 = ylims;
%postpone setting the Position of the subplots until all subplots are created
set(hAx1, 'dataaspectratio', [.7 cos((Y1(2)+Y1(1))/5/180*pi) 1], 'position', [0.204,0.5,0.55,0.42])
set(hAx2, 'Xlim', [1 365], 'Ylim', [min(T1) max(T1)], 'Position', [0.13,0.11,0.775,0.29], 'plotboxaspectratio', [1,0.31,0.31])
grid(hAx2, 'on')
hold(hAx2, 'on')
curve1 = animatedline(hAx2);
curve2 = animatedline(hAx2,'color','blue');
curve3 = animatedline(hAx2,'color','red');
for i = 1:10:length(tu)
addpoints(curve1,m(i),n(i));
addpoints(curve2,m(i),T1(i));
addpoints(curve3,m(i),T2(i));
drawnow;
pause(0.1)
end
More Answers (0)
See Also
Categories
Find more on Graphics Performance in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!