Save listener Callback in eps format or any high resolution format

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Hello,
for the Cart-Pole example and Training result (Episode Reward Chart) in RL Toolbox I am getting a static figure, that I can't save in anyway other than with the snipping tool which ruins the quality. I also tried to use the saveas command like here, but the eps or png file is coming empty and a figure 2 is opening.
Any help is much appreciated!
  6 Comments
Rik
Rik on 29 Mar 2021
You might need to use some tricks to get to the figure handle. The example below shows how you could try. I don't have the required toolboxes, so it is hard for me to experiment.
env = rlPredefinedEnv("CartPole-Discrete");
x=plot(env);
fig = getHiddenProp(x,'Figure');
saveas(fig, 'png_saved','png')
%confirm saving worked:
I=imread('png_saved.png');
figure,imshow(I)
function varargout=getHiddenProp(obj,PropType)
% Retrieve a hidden property from an object
% Use with care, this maight break for any release.
% If there are multiple objects, the first will be selected.
% If there are multiple matches, they will be returned in multiple outputs.
w=warning('off','all');
x=struct(obj);
warning(w);
if numel(x)>1,x=x(1);end
if numel(x)<1,varargout={};return,end
fn=fieldnames(x);
y=cellfun(@(elem) ...
ismember(cellstr(PropType),...
regexprep(class(x.(elem)),'.*\.','')... strip matlab.graphics.axis.Axes to Axes etc
),fn);
varargout=fn(y);
for n=1:numel(varargout)
varargout{n}=x.(varargout{n});
end
end
Reinforcement Learning
Reinforcement Learning on 1 Apr 2021
Edited: Reinforcement Learning on 1 Apr 2021
@Rik I tried that and it worked. But the .eps file isn't really so clear. If I include that in my pdf, it's pixelated for some reason. Of course I changed the format from png to epsc

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Accepted Answer

Emmanouil Tzorakoleftherakis
Hello,
If you are using R2020b, you can use
help rlPlotTrainingResults
to recreate the Episode manager plot and save it as you need.
If you are using R2021a, this function is now renamed to "inspectTrainingResult".
Hope that helps
  1 Comment
Reinforcement Learning
Reinforcement Learning on 29 Mar 2021
I am using R2020b. Do you mean like this? I already mentioned this in the comments, it only lets me save it as .pdf or .png. The bigger issue is with the Cart-Pole Visulaizer. It doesn't seem, like I can save that in any way

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