Creating a plot in dealii

[Wasim Niyaz Munshi ce21d400]

Hello everyone. I have 2 Vector<double> vectors A and B of the same size,n. I want to plot A vs B (A along x and B along y). I was trying something like this:

 DataOut<1,Vector<double> > data_out;
  data_out.add_data_vector (A, "A");
  data_out.add_data_vector (B, "B");

  // Write the Gnuplot file
  data_out.build_patches ();
  data_out.write_gnuplot (deallog.get_file_stream());

 but it gives these errors:

error: type/value mismatch at argument 2 in template parameter list for ‘template<int dim, int spacedim> class dealii::DataOut’

 expected a constant of type ‘int’, got ‘dealii::Vector<double>’

[Bruno Turcksin]

Hello,

DataOut is made to add data to a mesh. It cannot be used to do what you want. The easiest way to do what you want is to write the vectors to a file using print() and then do the plot using matlab or python.

Best,

Bruno

[Wasim Niyaz Munshi ce21d400]

Thank you very much. It was indeed the easiest way to do it.

Regards 

Wasim Niyaz
Research scholar
CE Dept.
IITM

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