Hi, I am working on a project where I have to save 960 figures for future individual analysis. So I thought it best to save them in a 'cell' or 'struct' .mat file to load and plot when necessary. Please advice on how to re-plot from a .mat file.

x = rand(1,1000);

y = rand(1,1000);

z = rand(1,1000);

h = scatter3(x,y,z);

S = struct('fi',h);--------------------%Saving 'h' in a Struct

O{1,1}=h;------------------------------%Saving 'h' in a Cell

save('Struct.mat', 'S')

save('Cell.mat', 'O')

%Now after clearing everything, I am able to load the saved .mat files.

%How do I plot these into a figure.

%% The following is what gets saved in the .mat file. >> O{1,1}

ans =

Scatter with properties:

             Marker: 'o'
    MarkerEdgeColor: 'flat'
    MarkerFaceColor: 'none'
           SizeData: 36
          LineWidth: 0.5000
              XData: [1x1000 double]
              YData: [1x1000 double]
              ZData: [1x1000 double]
              CData: [1x3 double]

Show all properties

Answer 1

[Stephen23]

Your idea is good, but MATLAB has a specific file format for saving and loading figures: the .fig file. It makes saving and loading figures easy: just like this:

saveas('file.fig',gcf) % all versions
savefig(gcf,'file.fig') % R2013b+

fgh = openfig('file.fig');

When you load it with openfig the figure will displayed (unless you select the 'invisible' option).

Read more:

https://www.mathworks.com/help/matlab/ref/saveas.html

https://www.mathworks.com/help/matlab/ref/savefig.html

https://www.mathworks.com/help/matlab/ref/openfig.html

[Hari Tejas Iyer]

Hi Stephan,

Thanks for the response.

In a loop this will generate 960 .fig files, I do not require to save so many. Instead I want to choose and plot from one .mat file - the cell 'O'.

O{10,60,16}

10 - saved properties. (*)

60 - instances of data.

16 - data sources.

(*) I want to record the .fig files in the cell 'O', as one of the 10 properties of my data (others are fit, RSq, etc . . .).

Answer 2

[Hari Tejas Iyer]

Hello,

A temporary solution could be to define a function, which calls on the plot data saved in the cell.

function fitplot

        prompt1='Input .mat file?';
        prompt2='Shot number?';
        prompt3='Spectrometer number?';

        load(input(prompt1,'s'));
        Shot=input(prompt2);
        Spec=input(prompt3);

        x = O{5,Shot,Spec};
        y = O{6,Shot,Spec};
        fitt = O{2,Shot,Spec};

        data =['Shot-',num2str(Shot),', Spectrometer-',num2str(Spec)];
        figure('name', data);
        plot(fitt,x,y);
        xlabel('Wavelength(nm)');
        ylabel('Intensity(a.u)');
 end