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/*
This file is part of "Interface Fractures III - Silicon".
Copyright (c) 2015 Luka Prinčič, All rights reserved.
This program is free software distributed under
GNU General Public Licence. See COPYING for more info.
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getLinesData.pde - process spectral lines
*/
ArrayList<FloatList> getLinesData() {
String[] siLinesData;
float[][] colors = { // these are taken from http://astro.u-strasbg.fr/~koppen/discharge/discharge.html
{ 3800.0, 0, 0, 0},
{ 4000.0, 150, 0, 150},
{ 4400.0, 120, 0, 255}, // violet
{ 4500.0, 0, 0, 255}, // blue
{ 4800.0, 0, 255, 255}, // cyan
{ 5200.0, 0, 255, 0}, // green
{ 5800.0, 255, 255, 0}, // yellow
{ 6500.0, 255, 0, 0}, // red
{ 7000.0, 80, 0, 0},
{ 7300.0, 0, 0, 0} };
siLinesData = loadStrings(dataPath(sketchPath + "/silicon_lines.txt"));
ArrayList<FloatList> siLinesList = new ArrayList<FloatList>();
for (String lineData : siLinesData ) {
String[] datatemp = split(lineData, " ");
FloatList data_x;
data_x = new FloatList();
// clean up from that messy split
for (int i = 0; i < datatemp.length; i++) {
if (!datatemp[i].equals("")) { // if not empty (spaces):
data_x.append(float(datatemp[i]));
}
}
// iterate through colors and find RGB values for each line
float wavelength = data_x.get(0);
for (int i = 0; i < colors.length; i++){
float thisboundary = colors[i][0];
if (i+1 < colors.length){
float nextboundary = colors[i+1][0];
if(wavelength > thisboundary && wavelength < nextboundary) {
int red = round(colors[i][1] + ( ( (colors[i+1][1] - colors[i][1]) / (colors[i+1][0] - colors[i][0]) )
* (wavelength - colors[i][0]) ));
int green = round(colors[i][2] + ( ( (colors[i+1][2] - colors[i][2]) / (colors[i+1][0] - colors[i][0]) )
* (wavelength - colors[i][0]) ));
int blue = round(colors[i][3] + ( ( (colors[i+1][3] - colors[i][3]) / (colors[i+1][0] - colors[i][0]) )
* (wavelength - colors[i][0]) ));
// add them to the array
data_x.append(red);
data_x.append(green);
data_x.append(blue);
}
}
}
siLinesList.add(data_x);
}
return siLinesList;
}