You can do this by post-processing in matlab/octave. Probably also scilab.

Ok, so I guess it is not possible in OpenModelica.

There is a Matlab-OpenModelica Interface to import the *.mat files:
http://www.mathworks.com/matlabcentral/ … -interface

However, it is quite old and does not work with the current version of OpenModelica.

If there is a solution that works with arrays and with the current version of OpenModelica, please let me know.

Hi,

OpenModelica generates Model_res.mat files on simulate(Model)
so I guess you can just import those in Matlab and play with them
there.

Cheers,
Adrian Pop/

Thank you for your reply. However, it does not give new information.

Anyway, I would still prever a solution that works inside OpenModelica. Maybe it is possible
to transform the array data at a certain time in a dummy variable?
V[x,t=1] = > V_dummy[t*], 
J[x,t=1] = > J_dummy[t*],
plotParametric(V_dummy,J_dummy)   ???

Here is how it works:

function array2time 
  //this function gets an array of data and the time
  //it returns a time dependend stepwise result
  //each array value corresponds to a specific time interval
  input Real array[:];
  input Real time;
  output Real result;
protected
Integer array_length;
Real delta_time;
Real stop_time;
algorithm
stop_time:= 1;
array_length := size(array,1); //number of values
delta_time:=stop_time/(array_length-1); //size of time interval
for k in 1:array_length loop
  if time >delta_time*(k-1)-delta_time/2 and time <= delta_time*k-delta_time/2 then
   result:=array[k];
  end if;
end for; 
  //if time >=stop_time-delta_time/2 then
  // result:=array[array_length-1];
  //end if; 
end array2time;

model test
  //this model shows a work around to plot arrays in modelica
   
  //define some arrays 
  constant Real V_array[:]={   0,   0.1,   0.2, 0.3, 0.4, 0.5, 0.55, 0.6}; 
  constant Real J_array[:]={ -30, -29.8, -29.5, -29, -26, -15, 5,  30};
  //define some variables that will hold the array data 
  Real V;
  Real J;
equation
  //transform array data to time data 
  V = array2time(V_array,time);
  J = array2time(J_array,time);
end test;

simulate(test);

plotParametric(V,J)

plot(V)

plot(J)