public static DataSeries parse(File file) throws NumberFormatException, IOException {
DataSeries result = new DataSeries();
BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
try {
boolean isFirstLine = true;
String line;
while ((line = reader.readLine()) != null) {
if (isFirstLine) {
isFirstLine = false;
continue;
}
String[] parts = line.split("\\s+");
if (parts.length != 3) {
throw new RuntimeException(
"In file " + file.getAbsolutePath() + ": Invalid line encountered: " + line);
}
Number value = Double.parseDouble(parts[0]);
Number before = Double.parseDouble(parts[1]);
Number after = Double.parseDouble(parts[1]);
result.add(value, before, after);
}
} finally {
reader.close();
}
return result;
}
private void fillScatter(DataSeries series, int points) {
Random random = new Random();
for (int i = 0; i < points; i++) {
double x = random.nextDouble() * 30 + 150;
double y = 60;
if (random.nextBoolean()) {
y += random.nextDouble() * 15;
if (random.nextBoolean() && x > 170) {
y += random.nextDouble() * 30;
}
} else {
y -= random.nextDouble() * 20;
}
x = Math.floor(x * 10) / 10;
y = Math.floor(y * 10) / 10;
int colorNumber = (int) Math.floor((x - 150) / 30 * 255);
Color color = new SolidColor(colorNumber, 0, 255 - colorNumber);
DataSeriesItem item = new DataSeriesItem(x, y);
// item.setColor(color);
series.add(item);
}
}