How to use savefig in app-designer?

Question

Leon 2020-2-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/504430-how-to-use-savefig-in-app-designer

评论： Leon 2020-2-9

Here is how I plot my map in app-designer:

            load map_use; %M N
            [m n] = size(M);
            for i=1:200;
                M2 = [];
                for j=1:m;
                    if M(j,3)==i;
                        M2=[M2;M(j,1:2)];
                    end
                end
                patch(app.mapPlot, M2(:,1), M2(:,2), [0.62,0.83,0.50]);
            end;
            
            savefig(app.mapPlot, 'AA.fig'); %Line 43
      

but get this error:

Error using savefig (line 43)
H must be an array of handles to valid figures

So how do I properly use savefig and openfig within app-designer?

Many thanks!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Cameron B 2020-2-9

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/504430-how-to-use-savefig-in-app-designer#answer_414555

编辑：Walter Roberson 2020-2-9

I’d use the function created by Adam Danz found on https://www.mathworks.com/matlabcentral/answers/281318-how-can-i-save-a-figure-within-app-designer It worked well for me. You can use this and then use the saveas function to save your new figure. I suppose you can set the visibility of your new figure to ‘off’ if need be, but you’ll probably have to do that yourself.

9 个评论
显示 7更早的评论隐藏 7更早的评论

Leon 2020-2-9

在 MATLAB Online 中打开

Many thanks!

I'm reading the documentation of CopyUIAxes, but still can't quite figure it out. So, 'h = copyUIAxes(uiax)' stores the current figure to h or it actually is the command to copy the figure to another axes? I need a way to save the the entire figure info into a file so that I can load it back and redraw the figure quickly again. The new figure should allow me to reset things like the xlim, ylim, and draw more points to it, etc.

fh = uifigure();
%     uiax = uiaxes(fh);
%     hold(uiax,'on')
%     grid(uiax,'on')
%     x = linspace(0,3*pi,200);
%     y = cos(x) + rand(1,200);
%     ph = scatter(uiax,x,y,25,linspace(1,10,200),'filled');
%     lh = plot(uiax, x, smooth(x,y), 'k-'); 
%     title(uiax,'copyUIaxes Demo','FontSize',18)
%     xlabel(uiax,'x axis')
%     ylabel(uiax,'y axis')
%     zlabel(uiax,'z axis')
%     cb = colorbar(uiax); 
%     cb.Ticks = -2:2:12;
%     caxis(uiax,[-2,12])
%     ylabel(cb,'cb ylabel')
%     lh = legend(uiax,[ph,lh],{'Raw','lowess'},'Location','NorthEast'); 
%     drawnow()% all graphics to catch up before copying
% 
%     % Ex 1: Copy axis to another figure
%     h = copyUIAxes(uiax);
%     
%     % Ex 2: specify ax axis as destination
%     fNew = figure();
%     axh = subplot(2,2,1,'Parent',fNew);
%     h = copyUIAxes(uiax,axh);

Leon 2020-2-9

编辑：Leon 2020-2-9

在 MATLAB Online 中打开

Many thanks, Adam!

So I save my figure like this:

figHandle = copyUIAxes(app.mapPlot2);
savefig(figHandle, 'AA.fig');

For the savefig line, I got the error. Do I need to initialize a figHandle like app.Plot within app-designer first? How do I create a hidden one like that?

Error using savefig (line 43)
H must be an array of handles to valid figures.

Then when I want to load it later on, I do this?

openfig('AA.fig');
copyUIAxes(app.mapPlot2); % load the figure back to app.mapPlot2       

What really confuses me is the use of copyUIAxes. It seems to be designed to copy a figure information among several parallel figures, instead of saving the info into a file for future use on the same figure. Right now, in order to do the latter, it requires the creation of an independent figure, which may not be convenient, especially within app-designer.

Would you please consider to create a pair of them, i.e., SaveUIAxes (into a fig file, or an app.xxx property), and OpenUIAxes (paste the saved fig into a new handle).

Adam Danz 2020-2-9

Thanks! Feel free to leave a rating and comment on the file exchange page if you'd like.

Leon 2020-2-9

Just did, Adam! Thanks again for your help.

请先登录，再进行评论。

How to use savefig in app-designer?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

采纳的回答

9 个评论
显示 7更早的评论隐藏 7更早的评论

更多回答（0 个）

另请参阅

类别

标签

产品

版本

Community Treasure Hunt

How to use savefig in app-designer?

0 个评论 显示 -2更早的评论隐藏 -2更早的评论

采纳的回答

9 个评论 显示 7更早的评论隐藏 7更早的评论

更多回答（0 个）

另请参阅

类别

标签

产品

版本

Community Treasure Hunt

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

9 个评论
显示 7更早的评论隐藏 7更早的评论