Merged plots from saved figure

I want to load a plot that shows the principle shear flow and later, in same figure, also plot corrosion pits with same legends as in independet plots.

fig = openfig('export_fig_m_files\F1slab_v1.fig');

hold on

% Remove the colormap and set the line colors to the original values

% set the filename

filename = 'Coords_Corr.txt';

% load the data

data1 = importdata(filename);

data = importdata('Coords_Corr_af.txt');

add_data = importdata('additional_inf.txt',',',1);

% Separation of points between 3.rd and 4.th position to create plots

Data_d_pos_4 = data(:, 1) == 4;

Data_4 = data(Data_d_pos_4,:);

Data_d_pos_3 = data(:, 1) == 3;

Data_3 = data(Data_d_pos_3,:);

max_size_plt = 100;

min_size_plt = 20;

pointsize_4 = Data_4(:,12);

pointsize_4_max = max(pointsize_4);

pointsize_4_min = min(pointsize_4);

factor_size_4 = (max_size_plt-min_size_plt)/(pointsize_4_max-pointsize_4_min);

pointcolor_4 = Data_4(:,13);

scatter(Data_4(:, 3), Data_4(:, 4), factor_size_4.*(pointsize_4-pointsize_4_min.*ones("like",pointsize_4))+min_size_plt.*ones("like",pointsize_4), pointcolor_4,'filled', "MarkerEdgeColor", "k")

hcb = colorbar;

hcb.Title.String = "\zeta";

hold on

I have attatched plots of how the two plots look seperatly and one from what the code above outputs. I have tried to extract data from openfig(...) but it retrives me no data.

The Fslab_v1 is created using the following linesof code:

% streamslice with density
[Vert,~]    = streamslice(X,Y,-VX,-VY,dens);
hold on;
max_v       = 0.5*max(max(VTOT));
%max_v       = 500;%default value, if needed
tam         = size(Vert);
tam         = tam(1,2);
for k=1:1:tam
    Linha = Vert{k};
    if ~isempty(Linha)
        tam2 = size(Linha);
        for i=1:1:tam2-1
            x_ii    = Linha(i+1,1);
            y_ii    = Linha(i+1,2);
            x_i     = Linha(i,1);
            y_i     = Linha(i,2);
            x_m     = x_ii*0.5+x_i*0.5;
            y_m     = y_ii*0.5+y_i*0.5;
            v_m     = interp2(X,Y,VTOT,x_m,y_m);
            %espe=max_ep*(v_m/max_v)^0.5;
            espe    = max_ep*(v_m/max_v);
            if (espe==0) 
                espe = 0.0000000000001;
            end
            if (isnan(espe))
                espe = 0.00000000001;
            end
            h       = plot(Linha(i:i+1,1),Linha(i:i+1,2),'LineWidth',espe,'Color',color_flow);
            hold on;
        end
    end
end
hold on;

Answer 1

[Abhishek]

Hi Filip,

Based on my understanding, it seems that you are facing challenge in retrieving data from the generated fig file. To assist you with this issue, I would like to suggest the following code snippet for your reference:

fig = openfig('F1slab_v1.fig');
axObjs = fig.Children;

%Since first is the colormap, select next 2 objects
dataObj1 = axObjs(2); 
dataObj2 = axObjs(3);

%Based on the figure type select line, scatter, contour, etc
lineObjs = findobj(dataObj1, 'type','contour');

%Extract the x,y,z, etc data associated with the figure
xdata = get(lineObjs,'XData');
ydata = get(lineObjs,'YData');
zdata = get(lineObjs,'ZData');

Similarly, you can extract data from the second object and continue with subsequent operations or generate visualizations based on the extracted data.

For more information about MATLAB graphics object, refer to: Graphics Object Hierarchy - MATLAB & Simulink (mathworks.com).