@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g2.setFont(new Font("Arial", Font.BOLD, 10));
// draw line
int hBase = 16;
g2.drawLine(0, getHeight() - hBase, getWidth() - 1, getHeight() - hBase);
// draw line ticks
double wBar = (double) getWidth() / (this.bins.length + 1);
for (int i = 0; i < this.bins.length + 1; i++) {
int x = (int) ((i + 0.5) * wBar);
int y = getHeight() - hBase;
g2.drawLine(x, y - 2, x, y + 2);
}
// draw labels
double binInterval = (double) (this.intervalEnd - this.intervalStart) / this.bins.length;
for (int i = 0; i < this.bins.length + 1; i++) {
long value = (long) (this.intervalStart + i * binInterval);
String label =
SolutionUtils.format(
value, this.configurationManager.getConfiguration("TIMER-PRECISION"), false);
FontMetrics fontMetrics = g2.getFontMetrics();
int width = fontMetrics.stringWidth(label);
int height = fontMetrics.getAscent();
int x = (int) ((i + 0.5) * wBar - width / 2);
int y = getHeight() - (hBase - height) / 2;
g2.drawString(label, x, y);
}
// draw bars
long maxValue = 0L;
for (int i = 0; i < this.bins.length; i++) {
if (this.bins[i] > maxValue) {
maxValue = this.bins[i];
}
}
if (maxValue > 0) {
for (int i = 0; i < this.bins.length; i++) {
int x1 = (int) ((i + 0.5) * wBar);
int x2 = (int) ((i + 1.5) * wBar);
int y = getHeight() - hBase;
int height = (int) (this.bins[i] * (getHeight() - hBase - 4) / maxValue);
g2.drawRect(x1, y - height, x2 - x1, height);
}
}
}
public void setSolutions(Solution[] solutions) {
// apply +2, filter DNF
long[] times =
SolutionUtils.realTimes(
solutions,
true,
this.configurationManager.getConfiguration("TIMER-PRECISION").equals("CENTISECONDS"));
// define interval size
if (times.length == 0) {
this.intervalStart = 17000;
this.intervalEnd = 23000;
} else {
// mean
long mean = 0;
for (int i = 0; i < times.length; i++) {
mean += times[i];
}
mean /= times.length;
// standard deviation
long variance = 0;
for (int i = 0; i < times.length; i++) {
variance += Math.pow(times[i] - mean, 2d);
}
variance /= times.length;
long stddev = (long) Math.sqrt(variance);
this.intervalStart = mean - 3 * Math.max(50, stddev);
this.intervalEnd = mean + 3 * Math.max(50, stddev);
}
// calculate histogram
for (int i = 0; i < this.bins.length; i++) {
this.bins[i] = 0;
}
for (int i = 0; i < times.length; i++) {
if (times[i] >= this.intervalStart && times[i] < this.intervalEnd) {
int bin =
(int)
(this.bins.length
* (times[i] - this.intervalStart)
/ (this.intervalEnd - this.intervalStart));
this.bins[bin]++;
}
}
// repaint
repaint();
}