Extract Results

[hsakarp]

Hello,
I need help regarding the extraction of results from OpenSees.
How can I extract results from OpenSees and Plot it as a graph on any user interface like MS Excel, Matlab etc?

Regards.

[kesavapraba]

Dear Friend
You can record the desired result quantity (forces/displacements etc.,) in either. txt or .Out or . dat files using 'recorder' command. Once you have got the files, using MATLAB ' load ' and 'plot' command , you can plot whatever graphs you are interested in. You can even see an example regarding section analysis part in Opensees i

[Prafullamalla]

clear all;
load E:\OpenSees\nodedisp.out; % Opensees output file say for example nodedisp.out
load =nodedisp(:,2); % matrix name should be output file name without extension, read column 2
disp = nodedisp(:,1); % matrix name should be output file name without extension, read column 1
% Plot graph
figure(1);
plot(disp,load,'b') % Plot command
title 'Load versus Displacement curve '
legend('Model Result')
xlabel('Disp(mm)')
ylabel('Load (kN)')

[hsakarp]

Hello,
Thank you kesavapraba and Prafullamalla for your reply regarding my question.
I want to ask one more thing. Can I plot the graph (ex: Displacement Vs Time) on MS Excel by reading the results from OpenSees? If so please let me know the procedure?

The recorder command I have used in my coding is as :
recorder Node -file Data/DFree.out -time -node 2 -dof 1 2 3 disp
recorder Node -file Data/DBase.out -time -node 1 -dof 1 2 3 disp
recorder Node -file Data/RBase.out -time -node 1 -dof 1 2 3 reaction
recorder Drift -file Data/Drift.out -time -iNode 1 -jNode 2 -dof 1 -perpDirn 2
recorder Element -file Data/FCol.out -time -ele 1 globalForce
recorder Element -file Data/DCol.out -time -ele 1 deformations

[Thivya]

Yes, use Data -> From Text
Then you can use your standard stuff in Excel with the datas.