private void init() {
double[][] cdf = new double[2][m + 1];
double[][] density = new double[2][m + 1];
double h = (b - a) / m;
double x;
int coex = 0;
try {
for (int i = 0; i <= m; i++) {
x = a + i * h;
cdf[0][i] = x;
cdf[1][i] = dist.cdf(x);
}
cdfChart = new XYLineChart("cdf: " + dist.toString(), "", "", cdf);
} catch (UnsupportedOperationException e) {
coex++;
System.err.println(e);
// e.printStackTrace();
}
try {
for (int i = 0; i <= m; i++) {
x = a + i * h;
density[0][i] = x;
density[1][i] = dist.density(x);
}
densityChart = new XYLineChart("density: " + dist.toString(), "", "", density);
} catch (UnsupportedOperationException e) {
System.err.println(e);
if (coex == 1) throw e;
}
cdfChart.setprobFlag(true);
densityChart.setprobFlag(true);
}
Main init() {
// Create a chart to monitor the infection progress rate
final XYLineChart chart =
new XYLineChart("Infection Rate", 5.0, "Infected Nodes (%)", "time(s)");
chart.setYRange(false, 0, 100);
chart.setSeriesLinesAndShapes("s0", true, true);
Gui.setFrameRectangle("MainFrame", 0, 0, 480, 480);
Gui.setFrameRectangle("Infection Rate", 484, 0, 480, 480);
// Create the simulation nodes
for (int i = 0; i < TOTAL_NODES; i++) new Node();
// Initialize the simulation nodes
for (Node i : NodeDB.nodes()) i.init();
NodeDB.randomNode().infect();
// Sets up a periodic task that, at one second intervals, computes and shows the percentage of
// infected nodes in the system
// Stops the simulation when it detects that every node is infected...
new PeriodicTask(1.0) {
public void run() {
double T = 0, N = 0;
for (Node n : NodeDB.nodes()) {
if (n.infected) T++;
N++;
}
chart.getSeries("s0").add(Simulation.currentTime(), 100.0 * T / N);
if (N == T) stop();
};
};
// From time to time, select a random node to go fail and go offline...
new Task(0) {
public void run() {
NodeDB.randomNode().crash();
reSchedule(0.5 + 0.5 * rg.nextDouble()); // schedules a new execution of this task...
}
};
// From time to time, create a new node. If the rate of births and deaths is the same,
// the size of the system should stay constant on average.
new Task(0) {
public void run() {
new Node().init();
reSchedule(0.5 + 0.5 * rg.nextDouble()); // schedules a new execution of this task...
}
};
super.setSimulationMaxTimeWarp(2.0);
return this;
}
/**
* Similar to #toLatexCdf, but for the probability density instead of the cdf.
*
* @param width Chart’s width in centimeters
* @param height Chart’s height in centimeters
* @return LaTeX source code
*/
public String toLatexDensity(int width, int height) {
return densityChart.toLatex(width, height);
}
/**
* Exports a chart of the cdf to a LaTeX source code using PGF/TikZ. This method constructs and
* returns a string that can be written to a LaTeX document to render the plot. `width` and
* `height` represents the width and the height of the produced chart. These dimensions do not
* take into account the axes and labels extra space. The `width` and the `height` of the chart
* are measured in centimeters.
*
* @param width Chart’s width in centimeters
* @param height Chart’s height in centimeters
* @return LaTeX source code
*/
public String toLatexCdf(int width, int height) {
return cdfChart.toLatex(width, height);
}
/**
* Similar to #viewCdf, but for the probability density instead of the cdf.
*
* @param width frame width in pixels
* @param height frame height in pixels
* @return frame containing the chart
*/
public JFrame viewDensity(int width, int height) {
return densityChart.view(width, height);
}
/**
* Displays a chart of the cumulative distribution function (cdf) on the screen using Swing. This
* method creates an application containing a chart panel displaying the chart. The created frame
* is positioned on-screen, and displayed before it is returned. The `width` and the `height` of
* the chart are measured in pixels.
*
* @param width frame width in pixels
* @param height frame height in pixels
* @return frame containing the chart
*/
public JFrame viewCdf(int width, int height) {
return cdfChart.view(width, height);
}