CODEWITHSUNDEEP
matlabplotexport
user1313386
user1313386

Reputation: 179

Matlab script for creating and exporting plots

I have in Simulink a Scope with multiplexor block Mux (i want to draw multiples wavaforms in one graph). After simulation i need to export it in defined form (background color, lines width, etc.) to eps/pdf and png files.

Actual problem:

My dream:

The final state is to fulfill my dream.

My m file:

% Get the data from Simulink
% First column is the time signal
% in Scope in Simulink : Array with time
[nothing, NumOfSgns] = size(ScopeData)
time = ScopeData(:,1);

% Plot all signals
hold on
for j=0:NumOfSgns-2,
    graph=plot(time,ScopeData(:,2+j:end),'Color', rand(1,3));

    % Signals description and position of the legend
    legend('firs wave form','next wave form','Location','SouthEast');
end
hold off

Thank you.

Upvotes: 0

Views: 244

Answers (1)

Florian Brucker
Florian Brucker

Reputation: 10375

The problem is using both legend and hold on: Because you use hold on, MATLAB doesn't clear the old plot before drawing the new. But it doesn't store the previous plots' information for legend. You need to do this manually.

Here's some code (untested, don't have access to MATLAB at the moment):

titles = {'A', 'B', 'C', 'D'};
handles = zeros(1, length(titles));
figure;
hold on;
for i = 1 : length(titles)
    handles(i) = plot(1 : 10, rand(1, 10), 'Color', rand(1, 3));
end
legend(handles, titles{:});

So: Store the handles returned by plot in a vector and pass it to legend (which you need to call after the loop).

Upvotes: 1

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