Save listener Callback in eps format or any high resolution format

Question

Reinforcement Learning 2021-3-28

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/785621-save-listener-callback-in-eps-format-or-any-high-resolution-format

编辑： Reinforcement Learning 2021-4-1

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!

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Rik 2021-3-29

在 MATLAB Online 中打开

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

Reinforcement Learning 2021-4-1

编辑：Reinforcement Learning 2021-4-1

@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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Answer 1

Emmanouil Tzorakoleftherakis 2021-3-29

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/785621-save-listener-callback-in-eps-format-or-any-high-resolution-format#answer_661459

在 MATLAB Online 中打开

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

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Reinforcement Learning 2021-3-29

Hi @Emmanouil Tzorakoleftherakis,

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