/**
* If time is > 60*60*24 [seconds], it will be projected into next day, e.g. time=60*60*24+1=1
*
* <p>even if time is negative, it is turned into a positive time by adding number of seconds of
* day into it consecutively
*
* @param time
* @return
*/
public static double projectTimeWithin24Hours(double time) {
double secondsInOneDay = 60 * 60 * 24;
if (time == Double.NEGATIVE_INFINITY || time == Double.POSITIVE_INFINITY) {
DebugLib.stopSystemAndReportInconsistency("time is not allowed to be minus or plus infinity");
}
while (time < 0) {
time += secondsInOneDay;
}
if (time < secondsInOneDay) {
return time;
} else {
return ((time / secondsInOneDay) - (Math.floor(time / secondsInOneDay))) * secondsInOneDay;
}
}
public static void generateXYScatterPlot(
String fileName, double[] x, double[] y, String title, String xLabel, String yLabel) {
if (x.length != y.length) {
DebugLib.stopSystemAndReportInconsistency("dimensions of arrays do not match");
}
final XYSeries series1 = new XYSeries(title);
for (int i = 0; i < x.length; i++) {
series1.add(x[i], y[i]);
}
final XYSeriesCollection dataset = new XYSeriesCollection();
dataset.addSeries(series1);
final JFreeChart chart =
ChartFactory.createXYLineChart(
title, xLabel, yLabel, dataset, PlotOrientation.VERTICAL, true, true, false);
chart.setBackgroundPaint(Color.white);
final XYPlot plot = chart.getXYPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
final XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();
renderer.setSeriesLinesVisible(0, false);
renderer.setSeriesShapesVisible(1, false);
plot.setRenderer(renderer);
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
int width = 500;
int height = 300;
try {
ChartUtilities.saveChartAsPNG(new File(fileName), chart, width, height);
} catch (IOException e) {
}
}
public static LinkedList<String> readFileRows(String fileName) {
LinkedList<String> list = new LinkedList<String>();
try {
FileInputStream fis = new FileInputStream(fileName);
InputStreamReader isr = new InputStreamReader(fis, "ISO-8859-1");
BufferedReader br = new BufferedReader(isr);
String line;
line = br.readLine();
while (line != null) {
list.add(line);
line = br.readLine();
}
} catch (Exception e) {
e.printStackTrace();
DebugLib.stopSystemAndReportInconsistency();
}
return list;
}