MATLAB: A Line to plot by using handles

childrenhandlesplot

Hey Guys,

Monday Morning Question: I have got an array(1×40) holding new y-Data. Now I want to plot this data in an existing Plot. Of course i could use gca / get(…,'children') / x = get(children,'xdata') to replot, but is there anyway to add the new Data and replot by using the childrens handles ?

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Of course i could use gca / get(...,'children') / x = get(children,'xdata') to replot, but is there anyway to add the new Data and replot by using the childrens handles ?

The get(...,'children') gives you the children's handles. If you haven't saved them when creating the plots, you'll need to get them this way. However, you can set the new y values by set(handle,'ydata',y).

No need to say that the dimensions must remain.

Related Solutions

MATLAB: How to exchange two plots (GUIDE)

Put each of the plots inside its own uipanel. Then to switch the plots, set the Parent property of the plot objects to be the other uipanel. Watch out for legend and colorbar as they are independent axes, not part of the axes like they appear to be.

Example:

set(handles.axes1, 'Parent', handles.uipanel2);
set(handles.axes2, 'Parent', handles.uipanel1);
drawnow();

MATLAB: Replace one of many subplots

subplot(m,n,p)

should set the next plotting axes to the one in position p of your (m,n) grid in the same way as it would have done when you first plotted it.

To keep everything except the data the same you can simply use

set( hPlot, 'XData', newXData )
set( hPlot, 'YData', newYData )

if you get hold of (or already stored) the handle of your current plot on those axes. I think one of your previous questions received an answer that shows you how to get the handle for your line that would go where hPlot is above.

If you simply replot the data I think you will need to replace the title and labels also

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Related Solutions

MATLAB: How to exchange two plots (GUIDE)

MATLAB: Replace one of many subplots

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