- Change the function so that it outputs the axis handle (or at least a handle to an object within the axes, see #2). Alternatively, you could create the axes ahead of time, store the handle, and then call your function if your function is set up to work with pre-existing axes.
- If you have the handle (h) to an object within the axes use ax=ancestor(h,'axes')
- If you have the figure handle (f), use ax=gca(f), assuming there is only 1 axes in the figure.
- This one is a worst-case-scenario but if you know the axes was just generated and gca is returning the wrong axes, you can record a list of axes prior to the line that creates the axes and then store another list of all axes after the axes is created. Then compare the two lists to find the new one:
Live scripts: Get axes handle of figure NOT stored in live script.
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I have a function which has plotted a series of functions as non-livescript plots, but not passed the plot handles out.
I am trying to use gca within my code to grab the most recently selected plot.
However, since (I assume) the live script is based off some form of gui, the gca function only grabs the handle of (I assume) plots within the live script window itself.
How do I grab the handle of a plot that is not located in the livescript?
回答 (1 件)
Adam Danz 2022 年 8 月 6 日
編集済み: Adam Danz 2022 年 8 月 8 日
This is why gca should usually be avoided.
Here are some solutions in order of robustness.
% option 4
originalAxesList = findall(groot,'type','axes');
nexttile % example, call function that creates new axes
updatedAxesList = findall(groot,'type','axes');
isNewAxes = ~ismember(updatedAxesList, originalAxesList);
newAxes = updatedAxesList(isNewAxes)