<https://lh3.googleusercontent.com/-ZVFmNPODnDY/WLF9CBK0qjI/AAAAAAAAAC0/lXUBcZzLm2Utphq840b42uANTYQ_GHtowCLcB/s1600/plot.jpg>
Hi!
I was looking through the documentation but I could not figure out how to
make graphic output of a simiple 1D plot like one I attached to this post.
I had to output my data to a file and draw the graph by hand to show it to
you. My data are just two columns: X, Y. When I look at gnuplot file
generated by
Dealii I see that it tries to draw my data as 2D plot.
Regards, Alex
MatrixOut matrix_out;
FullMatrix<double> DBvsF;
DBvsF.reinit(2, 1000);
std::vector<double> frequency;
double w;
double e = parameters.get_double("dissip");
unsigned int l;
unsigned int sz = frequency.size()-1;
for ( l=0; l<1000 ; l++) {
step = sqrt(w);
w+=step;
double val = log(DbAtFreq(w, &frequency, e));
DBvsF(0, l)= w;
DBvsF(1, l) = val;
}
std::ofstream out("DBvsFrequency.plt");
matrix_out.build_patches(DBvsF, "M");
matrix_out.write_gnuplot(out);
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