Problem by saveas plot

4 次查看（过去 30 天）
CSCh
CSCh 2020-12-20
回答： Image Analyst 2021-1-5
Hi everyone, I do not understand what I'am doing woring in saving my plot.
My code:
Temp=[num2str(vaiable), 'Myplotnumber' ,num2str(n) ,'-dpng'];
saveas(gcf,Temp);
it save the figure always with Var1Myplotnumber2.png.fig
why put matlab .fig at the end?
Thank you?
  3 个评论
显示 1更早的评论
CSCh
CSCh 2020-12-20
If I use print(gca, Temp)
I got:
Error using alternatePrintPath
Invalid or unsupported printer '' specified.
Error in print (line 83)
pj = alternatePrintPath(pj);
Ive J
Ive J 2020-12-20
Pass gcf and not axes
print(gcf, 'test', '-dpng', '-r400')

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

CSCh
CSCh 2021-1-4
Thank you all so much for your help. In my case the '-dpng' ending did not work.
if I change to:
Temp=['%MyName%' ,'.png'];
saveas(gcf, Temp)
it saves png format.
BR

更多回答（3 个）

Image Analyst
Image Analyst 2020-12-20
Use exportgraphics() instead if you have R2020a or later.
  7 个评论
显示 5更早的评论
CSCh
CSCh 2020-12-21
Yes that works for me, but why does not my code work? Maybe something with my loop (num2str (n)), I have to check..
Image Analyst
Image Analyst 2020-12-21
I don't know. You never showed me your exportgraphics() code that didn't work. You only showed it where it worked in the command window with a hard-coded filename string. Please post the non-working code from your m-file. Apparently it thinks your Temp did not have an extension on it. Are you sure Temp ends in '.png'?

请先登录，再进行评论。

Walter Roberson
Walter Roberson 2020-12-21
Temp = {sprintf('%dMyplotnumber%d.png', vaiable, n),'-dpng'};
saveas(gcf, Temp{:})
Image Analyst
Image Analyst 2021-1-5
You can do
baseFileName = sprintf('%d Myplotnumber %d.png', variable, n); % Name without folder.
fullFileName = fullfile(yourFolder, baseFileName); % Prepend folder.
saveas(gcf, fullFileName);

类别

在 Help Center 和 File Exchange 中查找有关 Printing and Saving 的更多信息

标签

产品


版本

R2020a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by