To Save contourf sequentially in loop according to input filename

Hello,

I wish to save contourf sequentially in for loop according to input filename, but it throws error : "Simulink object array must be avector"

My code:

fil=dir('*.h5'); 
for K=1:numel(fil)
g=fil(K).name; s1=num2str(g(7:11)); %s1 is my file name which changes in each loop
(functions)
im=contourf(x,y,z)
saveas(im,strcat(s1,'.fig'));
saveas(im,strcat(s1,'.png'));
end

I guess I am at lack of understanding the issue...any help shall be welcome !

[KSSV]

Check how is s1???it should be a string....

Answer 1

[KSSV]

Note that im will be matrix. YOu cannot save like that.

Try this:

fil=dir('*.h5');
for K=1:numel(fil)
    g=fil(K).name; s1=num2str(g(7:11)); %s1 is my file name which changes in each loop
    (functions)
    im=contourf(x,y,z)
   
    saveas(gcf,strcat(s1,'.fig'));
    saveas(gcf,strcat(s1,'.png'));
end

[Bhowmik.U]

This works, but with a glitch..

First figure saves properly,

the second figure saves with the first figure in background and not independently.

the third figure saves with the background info of first and second.. and so on

tried to do "clearvars gcf" at the end of saveas...to no avail!

[KSSV]

Check is there any hold on....

[Bhowmik.U]

Thanks for your reply Sir

Yes, I had to do a hold on to draw a rectangle onto the contourf plot

Is there any work around?

[KSSV]

Use hold off when the plotting thing gets over...

[Bhowmik.U]

Many thanks Sir! No words to express my gratitude...