Create and save figure without drawing

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Gabriel Stanley
Gabriel Stanley 2022 年 9 月 24 日
コメント済み: Gabriel Stanley 2022 年 9 月 26 日
I would like to create figures within a script without actually drawing them, on the assumption that this will save time, RAM, and GPU resources. I would like to save those objects as pictures. However, each figure is a layering of two different datasets. In an interactive setting I would achieve this through the hold on command
A = randi(9,1,15);
B = randi(9,1,15);
MyScatter = scatter([1:15],A)
hold on
MyScatter = scatter([1:15],B)
But this still creates a figure window and draws the objects to the screen.
Is there a way to do what I describe, perhaps via copyobj? And/or am I unlikely to see significant computational savings by doing so?

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Mahdi Hayati
Mahdi Hayati 2022 年 9 月 24 日
To save figure as picture in your system, without actually showing the figure, first make your figure invisible:
f = figure('visible','off');
then go for your scatter and add them to the ' f ' which is your invisible figure.
finally you can use saveas function to save the figure as picture.
  3 件のコメント
Gabriel Stanley
Gabriel Stanley 2022 年 9 月 26 日
Understood, and thank you for the warning. I had been going to preallocate/define the axes properties of the scatter plot, but It's very late where I am and for reasons I haven't had time to run down,
MyFigure = figure('visibile','off')
MyAxes= axes(MyFigure,%Various Name/Value pairs)
Was thowing an error indicating MyFigure wasn't an appropriate handle. If I notice any significant problem while putting the scatterplots into my report, I'll remember this and see about debugging the handle issue.

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