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/* This file is part of the OpenLB library
*
* Copyright (C) 2016 Fabian Klemens
* E-mail contact: info@openlb.net
* The most recent release of OpenLB can be downloaded at
* <http://www.openlb.net/>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef GNUPLOT_WRITER_H
#define GNUPLOT_WRITER_H
#include <iomanip>
#include <iostream>
#include <vector>
namespace olb {
template< typename T >
class Gnuplot {
public:
/// Constructor with name for output files
/// boolean true for real-time plotting //WARNING: experimental!
Gnuplot(std::string name, bool liveplot = false);
/// initialises the data file
void init();
/// sets the data and plot file for two doubles (x and y)
/// the plotType indicates whether the user want to plot a line graph (default = 'l')
/// or e.g. a scatter plot ('p')
void setData(T xValue, T yValue, std::string name = "", std::string key = "", char plotType = 'l');
/// if no x value is given, it is just an increasing integer
void setData(bool noXvalue, T yValue, std::string name = "", std::string key = "", char plotType = 'l');
/// sets the data and plot file for a double and a vector of doubles (x and {y1,y2,...})
/// for each entry of the y-axis-list, a plot Type can be specified (default: line graph {'l', 'l'})
void setData(T xValue, std::vector<T> yValues, std::vector<std::string> names = {""}, std::string key = "right", std::vector<char> plotType = {'l','l'});
/// if no x value is given, it is just an increasing integer
void setData(bool noXvalue, std::vector<T> yValues, std::vector<std::string> names = {""}, std::string key = "right", const std::vector<char> plotType = {'l','l'});
/// set labels of the plot: xLabel and yLabel
void setLabel(std::string xLabel = "", std::string yLabel = "");
/// writes an PDF
void writePDF();
/// writes PNGs
/// usage: first argument: numbering of png file (optional),
/// second argument: range for the x axis (optional)
/// third argument: name the plot in order to specify a plotID in case the
/// user want to create more than one plot with the simulation results
/// no arguments: writes in one file with adaptive xrange and no specific name
void writePNG(int iT = -1, double xRange = -1, std::string plotName = "");
private:
std::string _xLabel;
std::string _yLabel;
std::string _name;
bool _liveplot;
std::string _type;
std::string _dataFile;
std::string _dir;
std::vector<std::string> _names;
std::string _key;
/// plotType vector stores the type of the plot the user wants to create
/// (e.g. 'l' line graph (default) or 'p' scatterplot)
std::vector<char> _plotTypes;
bool _init = true;
unsigned int _dataSize = 0;
int _iT = -1;
double _xRange = -1;
T _time = 0.;
int _rank = 0;
/// writes a plot file for type {"plot", "png", "pdf")
void writePlotFile(std::string type, std::string plotName = "");
/// writes the data file for two doubles (x and y)
void writeDataFile(T xValue, T yValue);
/// writes the data file for one double and a vector of doubles (x and y1,y2,...)
void writeDataFile(T xValue, std::vector<T> yValues);
protected:
/// system command to start gnuplot (LINUX ONLY!)
void startGnuplot(std::string plotFile, std::string plotName = "");
};
} // namespace olb
#endif
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