Saving a Figure from inside a GUI
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Hi all!
I have been designing a few GUIs to make some data analysis easier. At the end process however I want to be able to save the created plot (and legend) with a push button. I have been looking over past questions and have seen a few ways to approach the problem. My current method of saving the plot is as follows
cd('F:\JLAB\Gui_output')
picname=input('Enter Name for Image: ','s')
saveas(handles.ax, picname, 'jpg')
cd(handles.CF)
The problem with this is that I take the whole GUI window instead of just the plot. The two other methods I have seen are the export_fig function and the copyobj method. With the export_fig function I cannot figure out how to tell it to take only the part that I want. With the copyobj method (copy the plot to a figure window and save it there) I cannot figure out how to properly use the function.
Additional info: When I created the axes I defined them with
handles.ax=axes('Outerposition',[.25, 0,0.8,0.8]);
Cheers, Rhys
采纳的回答
Image Analyst
2013-6-14
1 个投票
With export_fig(), you can pass it the axes handle on your GUI if you want to save only the axes. Is that what you meant by "take only the part that I want"? Did you try to pass it the axes handles instead of the figure handle?
5 个评论
Rhys
2013-6-14
Image Analyst
2013-6-14
Try this demo, where I use export_fig() to save both the whole figure, and just one of the axes on it.
clc;
close all;
workspace;
fontSize = 16;
% Read in a standard MATLAB color demo image.
folder = fullfile(matlabroot, '\toolbox\images\imdemos');
baseFileName = 'peppers.png';
% Get the full filename, with path prepended.
fullFileName = fullfile(folder, baseFileName);
if ~exist(fullFileName, 'file')
% Didn't find it there. Check the search path for it.
fullFileName = baseFileName; % No path this time.
if ~exist(fullFileName, 'file')
% Still didn't find it. Alert user.
errorMessage = sprintf('Error: %s does not exist.', fullFileName);
uiwait(warndlg(errorMessage));
return;
end
end
rgbImage = imread(fullFileName);
% Get the dimensions of the image. numberOfColorBands should be = 3.
[rows, columns, numberOfColorBands] = size(rgbImage);
% Display the original color image.
handlesToAxes = subplot(2, 2, 1);
imshow(rgbImage);
title('Original Color Image', 'FontSize', fontSize);
subplot(2, 2, 4);
imshow(rgbImage(:,:,2));
title('Green Channel Image', 'FontSize', fontSize);
% Enlarge figure to full screen.
set(gcf, 'units','normalized','outerposition',[0 0 1 1]);
% Save the whole figure.
export_fig(gcf, 'Entire_figure.png');
% Save just the axes, not the whole figure.
export_fig(handlesToAxes, 'Just_the_axes.png');
Image Analyst
2013-6-15
I don't have your data so it's hard for me to reproduce.
Rhys
2013-6-15
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