0 个投票

Hey theret I have a problem when I run this plotting code. I want all elements to be plotted in animation and only the last data point, but I only get one of them like that, the others are plotted in animation but the old data dont delete... Here is the code I'm using:
for i = 1:N
for j = 1:B
p=plot(x(j,i),y(j,i),'bo');
hold on
end
pause(0.001)
delete(p)
end
Thank you

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 采纳的回答

Oscar García
Oscar García 2015-4-6

0 个投票

Hey I figured it out:
for i = 1:N
for j = 1:B
p(j)=plot(x(j,i),y(j,i),'bo');
hold on
end
pause(0.001)
delete(p)
end
Thanks

更多回答（1 个）

Geoff Hayes
Geoff Hayes 2015-4-5
编辑：Geoff Hayes 2015-4-5

0 个投票

Oscar - at which point do you want to delete the data? Once the inner for loop has completed or on every iteration of the inner for loop?
If you just want to show the current point only (with no history) then try updating the graphics handle p rather than deleting it. Something like
hPlot = plot(NaN,NaN);
for i = 1:N
for j = 1:B
set(hPlot,'XData',x(j,i),'YData',y(j,i), ...
'Marker','o','MarkerEdgeColor','b');
pause(0.0001);
end
end

5 个评论
显示 3更早的评论 隐藏 3更早的评论

Oscar García
Oscar García 2015-4-5
Thanks Geoff...I want to delete the data once the inner for loop has completed. The final plot must be B number of elements moving until i=N...
Oscar García
Oscar García 2015-4-5
I've tried your suggestion but matlab returns an error...:
Error using set
Invalid parameter/value pair arguments
Geoff Hayes
Geoff Hayes 2015-4-5
Oscar - I should have tested before posting. Try this instead
set(hPlot,'XData',x(j,i),'YData',y(j,i),'Marker','o','MarkerEdgeColor','b');
Oscar García
Oscar García 2015-4-5
Now I only get plotted the Bth element
Geoff Hayes
Geoff Hayes 2015-4-6
Oscar - please be more specific in what you want.

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