Problem with axes handle.
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I made a gui with a progressing plot in which i used a for loop. I want the plot to be in the axes ( with handle axes2 ) area which i defined in the gui. this is a part of my program:
for i=1:numel(B1)
axes(handles.axes2);
plot(B1(1:i),B2(1:i),B1(i),B2(i),'*r');
axis([min(B1) max(B1) min(B2) max(B2)]);
end
but in this the loop only runs once and then i get an error saying
'Error using axes Invalid object handle'.
please suggest me how to rectify it.
Thanks.
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回答(1 个)
Walter Roberson
2013-6-6
When you do not have "hold on" (or its internal equivalent) in effect, plot() does the equivalent of clf() [clear figure] which results in the axes being deleted as the axes is underneath the figure.
Are you trying to draw multiple plots in the same axes, beside each other? Or multiple plots that are visually on top of each other? Or are you wanting to draw one at a time to "animate" the plots? If you are animating, have a look at the drawnow() command.
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Walter Roberson
2013-6-6
After the first axes() call, add
cla();
hold on
Then after the second axes() call, add
drawnow()
You might also want to add a pause() call.
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