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///
/// This file is part of Rheolef.
///
/// Copyright (C) 2000-2009 Pierre Saramito <Pierre.Saramito@imag.fr>
///
/// Rheolef is free software; you can redistribute it and/or modify
/// it under the terms of the GNU General Public License as published by
/// the Free Software Foundation; either version 2 of the License, or
/// (at your option) any later version.
///
/// Rheolef is distributed in the hope that it will be useful,
/// but WITHOUT ANY WARRANTY; without even the implied warranty of
/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
/// GNU General Public License for more details.
///
/// You should have received a copy of the GNU General Public License
/// along with Rheolef; if not, write to the Free Software
/// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
///
/// =========================================================================
//
// animations using gnuplot
//
// author: Pierre.Saramito@imag.fr
//
// date: 17 november 2002
//
#include "rheolef/branch.h"
#include "rheolef/rheostream.h"
#include "rheolef/basis_on_pointset.h"
#include "field_seq_visu_gnuplot_internal.h"
namespace rheolef {
using namespace std;
// ====================================================
// yet hard-coded ! TODO: use a -select-contour option
// ====================================================
template <class T>
void
put_header_gnuplot (odiststream& ops, const branch_basic<T,sequential>& b)
{
ostream& out = ops.os();
delete_macro (b._p_ctrl_out);
delete_macro (b._p_data_out);
string basename = iorheo::getbasename(out);
if (basename == "") basename = "output";
bool do_verbose = iorheo::getverbose(clog);
bool do_execute = iorheo::getexecute(clog);
bool do_clean = iorheo::getclean (clog);
string tmp = (do_clean ? get_tmpdir() + "/" : "");
string plot_name = tmp+basename + ".plot";
string param_name = tmp+basename + "-visu-param.plot";
b._to_clean = plot_name;
b._p_ctrl_out = new_macro (ofstream(plot_name.c_str()));
do_verbose && clog << "! file `" << plot_name << "' created" << endl;
*(b._p_ctrl_out) << setbasename(basename)
<< setprecision(numeric_limits<T>::digits10)
<< "load \"" << param_name << "\"" << endl;
b._have_u_range.first = (b._u_range.first != std::numeric_limits<T>::max());
b._have_u_range.second = (b._u_range.second != -std::numeric_limits<T>::max());
}
template <class T>
void
put_event_gnuplot (odiststream& ops, const branch_basic<T,sequential>& b)
{
typedef typename branch_basic<T,sequential>::size_type size_type;
bool do_verbose = iorheo::getverbose(clog);
size_t nfld = b.n_field();
if (nfld == 0) return;
// TODO: assume all fields have the same mesh
const space_basic<T,sequential>& Xh = b[0].second.get_space();
const geo_basic<T,sequential>& omega = Xh.get_geo();
const disarray<point_basic<T>,sequential>& xdof = Xh.get_xdofs();
bool do_clean = iorheo::getclean (clog);
string basename = iorheo::getbasename(ops.os());
if (basename == "") basename = "output";
string tmp = (do_clean ? get_tmpdir() + "/" : "");
// ---------------------------------------------------------
// 1) range : as computed at the first occurrence
// -----------------------------------------------
if (b._count_value == 0) {
*(b._p_ctrl_out) << "set xrange [" << omega.xmin()[0] << ":" << omega.xmax()[0] << "]" << endl;
}
if (! b._have_u_range.first || ! b._have_u_range.second) {
for (size_t ifld = 0; ifld < nfld; ifld++) {
const field_basic<T,sequential>& u = b[ifld].second;
if (! b._have_u_range.first) {
b._u_range.first = std::min (b._u_range.first, u.min());
}
if (! b._have_u_range.second) {
b._u_range.second = std::max (b._u_range.second, u.max());
}
}
}
// -----------------------------------------------
// 2) plot commands
// -----------------------------------------------
const string& pname = b.parameter_name() + " = " + ftos(b.parameter());
*(b._p_ctrl_out) << "set title \"i = " << b._count_value << ": " << pname << "\" font \"arial,20\"" << endl
<< "plot \\" << endl;
for (size_t ifld = 0; ifld < nfld; ifld++) {
const string& uname = b[ifld].first;
string gdat_name = tmp + basename + "_" + uname + "_" + std::to_string(b._count_value) + ".gdat";
*(b._p_ctrl_out) << (ifld == 0 ? " " : ",")
<< " \"" << gdat_name << "\""
<< " u 1:2"
<< " t \"" << uname << "\""
<< " w l"
<< (ifld < nfld-1 ? " \\" : "")
<< endl;
}
*(b._p_ctrl_out) << "pause dt_pause" << endl;
// -----------------------------------------------
// 3) data
// -----------------------------------------------
// TODO: subdivide option not set by the branch unix command
size_type subdivide = iorheo::getsubdivide(ops.os());
bool fill = iorheo::getfill(ops.os()); // show grid or fill elements
for (size_t ifld = 0; ifld < nfld; ifld++) {
const string& uname = b[ifld].first;
const field_basic<T,sequential>& uh = b[ifld].second;
string gdat_name = tmp + basename + "_" + uname + "_" + std::to_string(b._count_value) + ".gdat";
ofstream gdat (gdat_name.c_str());
b._to_clean = b._to_clean + " " + gdat_name;
if (do_verbose) clog << "! file \"" << gdat_name << "\" created.\n";
gdat << setprecision(numeric_limits<T>::digits10);
const geo_basic<T,sequential>& omega = uh.get_geo();
const basis_basic<T>& b_fem = uh.get_space().get_basis();
if (subdivide == 0) { // subdivide is unset: use default
subdivide = std::max(omega.order(), subdivide);
subdivide = std::max(b_fem.degree (), subdivide);
}
size_type map_dim = omega.map_dimension();
size_type used_dim = (fill ? map_dim : 1);
basis_basic<T> subdivide_pointset ("P"+std::to_string(subdivide));
piola_on_pointset<T> pops; pops.initialize (omega.get_piola_basis(), subdivide_pointset, integrate_option());
fem_on_pointset<T> fops; fops.initialize (b_fem, pops);
bound_type<T> bbox;
bbox.xmin = omega.xmin();
bbox.xmax = omega.xmax();
bbox.umin = uh.min();
bbox.umax = uh.max();
for (size_type ie = 0, ne = omega.size(used_dim); ie < ne; ie++) {
const geo_element& K = omega.get_geo_element(used_dim,ie);
put (gdat, omega, K, uh, fops, subdivide, bbox);
}
gdat.close();
}
}
template <class T>
void
put_finalize_gnuplot (odiststream& ops, const branch_basic<T,sequential>& b)
{
// is the destructor virtual : ofstream::~ofstream() or opstream::~opstream() ?
string basename = iorheo::getbasename(ops.os());
if (basename == "") basename = "output";
bool do_verbose = iorheo::getverbose(clog);
bool do_execute = iorheo::getexecute(clog);
bool do_clean = iorheo::getclean(clog);
bool reader_on_stdin = iorheo::getreader_on_stdin(ops.os());
if (! reader_on_stdin) {
*(b._p_ctrl_out) << "pause -1 \"<end>\"" << endl;
}
string tmp = (do_clean ? get_tmpdir() + "/" : "");
//
// compute visu params: u_range, pause delay
//
string param_name = tmp+basename + "-visu-param.plot";
ofstream param (param_name.c_str());
if (do_verbose) clog << "! file \"" << param_name << "\" created.\n";
b._to_clean = b._to_clean + " " + param_name;
param << "duration = 30 # in seconds" << endl
<< "n_step = " << b._count_value << endl
<< "dt_pause = 1.0*duration/n_step" << endl;
if (b._u_range.second - b._u_range.first < 1e-7) {
// perhaps the solution is zero ? try to renormalize
b._u_range.second = b._u_range.first + 1;
}
param << "set yrange [" << b._u_range.first << ":" << b._u_range.second << "]" << endl;
param.close();
//
// run gnuplot
//
int status = 0;
string command;
if (do_execute) {
command = "gnuplot ";
if (reader_on_stdin) command += "-persist ";
command += tmp + basename + ".plot";
if (do_verbose) clog << "! " << command << endl;
cin.sync();
status = system (command.c_str());
}
//
// clear gnuplot data
//
if (do_clean) {
string tmp = get_tmpdir() + "/";
if (!do_clean) tmp = "";
string command = "/bin/rm -f " + b._to_clean;
// to much files to see:
// do_verbose && clog << "! " << command << endl;
do_verbose && clog << "! cleaning temporary .plot and .gdat files" << endl;
int status = system (command.c_str());
}
delete_macro (b._p_ctrl_out);
delete_macro (b._p_data_out);
b._p_ctrl_out = 0;
b._p_data_out = 0;
b._to_clean = "";
}
// ----------------------------------------------------------------------------
// instanciation in library
// ----------------------------------------------------------------------------
template void put_header_gnuplot (odiststream&, const branch_basic<Float,sequential>&);
template void put_event_gnuplot (odiststream&, const branch_basic<Float,sequential>&);
template void put_finalize_gnuplot (odiststream&, const branch_basic<Float,sequential>&);
} // namespace rheolef
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