Hi guys I am trying to do animation using figure from two different loop in a code ( 2012version!)

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sanjeet
sanjeet 2016-10-27
评论： Walter Roberson 2016-10-27
I am using Video writer do animation with plot inside of for-loop. The code is such that there are two separate for loop in series.Each work on different data files so cannot combine. the plot are values at 2D plance co-ordinate with time changing. the vedio will show each figure from two loop- in same time synchronized.
Here is sample of code- part 2 of figure:
vidObj=VideoWriter('Movie2.avi');
vidObj.Quality=100;
vidObj.FrameRate=5;
open(vidObj);
figure, set(gcf,'color','white')
Z=peaks; surf(Z);
axis tight;
set(gcf,'nextplot','replacechildren','visible','off');
%Test data Loop for reacd timstep
for j=1:16 %length(tot)
filename = strcat('U:\Powertrain\B0000',num2str(j),'.txt'
delimiter = '\t';
startRow = 2;
formatSpec = '%f%f%f%f%[^\n\r]';
fileID = fopen(filename,'r');
dataArray = textscan(fileID, formatSpec, 'Delimiter', delimiter, 'EmptyValue' ,NaN,'HeaderLines' ,startRow-1, 'ReturnOnError', false);
fclose(fileID);
xtest = dataArray{:, 1};
ztest = dataArray{:, 2};
utest = dataArray{:, 3};
wtest = dataArray{:, 4};
clearvars filename delimiter startRow formatSpec fileID dataArray ans;
subplot(2,2,1)
quiver(xtest,ztest,utest,wtest,'color','blue','linewidth',0.5); % CFD output
hold on; title([Test Velocity vector at time =',num2str(t2),' CA'],'FontWeight','bold')
%plot for u at different z
z1=1
for k=1:4
subplot(2,2,2)
plot(xtest(z1:(z1+51)),utest(z1:(z1+51))-10*(k-1));
hold on; title(['PIV test speed (u) at time =',num2str(t2),' CA'],'FontWeight','bold')
z1=z1+51+k;
end
drawnow;
writeVideo(vidObj,getframe(gca));
hold off;
end
close(gcf)
close(vidObj);
Here is error for the set(gcf) part:
set(gcf, 'Units', 'Normalized', 'Outerposition', [0, 0, 1, 1]);
It shows error msg:
Error using set
Bad property value found
Object name: figure
Property name: 'Units'
  2 个评论
Walter Roberson
Walter Roberson 2016-10-27
Odd, when I test with that exact line (copied from your posting) it works for me in R2012a on OS-X
Is that line of code after everything else from your posting? The line does not appear in context in your code ?
Walter Roberson
Walter Roberson 2016-10-27
You have not posted your actual code. Your posted code has bugs that would prevent it from running.
Line 11
filename = strcat('U:\Powertrain\B0000',num2str(j),'.txt'
needs a closing )
Line 25
hold on; title([Test Velocity vector at time =',num2str(t2),' CA'],'FontWeight','bold')
needs an opening '
hold on; title(['Test Velocity vector at time =',num2str(t2),' CA'],'FontWeight','bold')
I do not have your Powertrain\B0000*.txt files so I cannot run the code to see if there is some run-time problem.

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