Save a .FIG as .JPG (syntax error?)

Question

Keith Grey 2020-5-19

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https://ww2.mathworks.cn/matlabcentral/answers/526750-save-a-fig-as-jpg-syntax-error

评论： Benjamin Großmann 2020-5-19

采纳的回答： Benjamin Großmann

I currently have a string varible that updates my fig title and file names.

savefig(sprintf('%s - F vs V.fig', NAME))

But I also want to save a .JPG of the file too. I've tried:

saveas(sprintf('%s - F vs V', NAME),'.jpg')

Is there a syntax error I'm overlooking?

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Answer 1

Benjamin Großmann 2020-5-19

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https://ww2.mathworks.cn/matlabcentral/answers/526750-save-a-fig-as-jpg-syntax-error#answer_433559

编辑：Benjamin Großmann 2020-5-19

To save a jpg with saveas() you have to give a proper figure handle (at least gcf) as first argument and change '.jpg' to 'jpeg' as format specifier (no dot and including the "e").

e.g.:

clearvars, close all
clc
NAME = 'myFig'; % figure name and prefix of jpeg file name
fig = figure('Name', NAME); % creates figure and returns figure handle
plot(rand(100,1)) % plot some random data
saveas(fig, sprintf('%s - F vs V', NAME),'jpeg') % save as jpeg

However, i would recommend to use a vector graphics format or png instead of jpeg, because jpeg could contain ugly artifacts.

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Keith Grey 2020-5-19

编辑：Keith Grey 2020-5-19

saveas(gcf,sprintf('%s - Title).png', NAME))

I worked it out! Thank you!

Benjamin Großmann 2020-5-19

You are welcome. Please consider to substitue gcf by a figure handle returned from the figure() command. gcf can become very confusing when dealing multiple figures or if you have user interaction.

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