/*
* OpenPixi - Open Particle-In-Cell (PIC) Simulator
* Copyright (C) 2012 OpenPixi.org
*
* 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.
*/
package org.openpixi.pixi.ui.util;
import org.openpixi.pixi.physics.grid.Grid;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
/**
* This is an example DataOutput object as needed to extract data
* from the diagnostics package. Here we decided to write the data
* to files.
*/
public class DataOutput extends EmptyDataOutput{
private BufferedWriter potential;
private BufferedWriter totalKineticEnergy;
private int iteration;
public DataOutput(String directory, String runid, Grid grid) throws IOException {
// Writes grid parameters to file s.t. the other methods do not have to do it
// in every time step.
BufferedWriter gridProperties = writerFactory(directory + "gridproperties-" + runid);
gridProperties.write("Number of cells in x direction\t" + grid.getNumCellsX() + "\n" +
"Number of cells in y direction\t" + grid.getNumCellsY() + "\n\n" +
"Cell width (x direction)\t" + grid.getCellWidth() + "\n" +
"Cell height (y direction)\t" + grid.getCellHeight() + "\n\n" +
"The output in grid related files is structured in the following way:\n" +
"For scalar quantities the first " + grid.getNumCellsY() + " entries represent" +
" the first column of the grid. The next " + grid.getNumCellsY() +
" entries represent the second column, etc.\n");
gridProperties.close();
potential = writerFactory(directory + "potential-" + runid);
totalKineticEnergy = writerFactory(directory + "kinetic-energy-" + runid);
}
public void potential(double[][] phi) {
try {
potential.write("Iteration: " + iteration + "\n");
for(double[] column : phi) {
for(double element : column) {
potential.write(element + "\n");
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void kineticEnergy(double energy) {
try {
totalKineticEnergy.write("Iteration: " + iteration + "\n");
totalKineticEnergy.write("" + energy);
totalKineticEnergy.newLine();
} catch (IOException e) {
e.printStackTrace();
}
}
/** Should be called at the beginning of each iteration of the simulation */
public void setIteration(int iteration) {
this.iteration = iteration;
}
/** Should be called when no data needs to be written anymore */
public void closeStreams() {
try {
potential.close();
totalKineticEnergy.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public BufferedWriter writerFactory(String path) throws IOException {
File file;
FileWriter fstream;
BufferedWriter out;
file = new File(path);
fstream = new FileWriter(file);
out = new BufferedWriter(fstream);
return out;
}
}