Repository: Plotters

By Kevin Zhao

My own easy-to-use plotters based on JZY3D and XChart. Requires Maven to run.

By using my specialized plotters, you don't need to set up the environment for JZY3D. You can just create a Plotter, add your components, and invoke the plot() function.

A Demo for Parameterized Surfaces, Scatterpoints, and Curves:

This demo produces a surface plot with 6 parameterized surfaces and a scatterplot with two distinctly colored clusters. It also includes a parameterized curve (helix), given the parameterized equation α(t) = <5sin(10t), 5cos(10t), -80t>.

// Create a plotter and add a surface
Plotter plt = new Plotter(Quality.Nicest).setSize(5).plot();
plt.addSurface(plt.createSurface(new Range(-10f,10f), new Range(-10f,10f), new Mapper() {
	public double f(double x, double y) {return -Math.pow(x * x + y * y, 1.2);}
}));

// Add more surfaces
for (double p = .1; p <= .5; p += .1) {
	final Double pf = new Double(p);
	plt.addSurface(plt.createSurface(new Range(-10f,10f), new Range(-10f,10f), new Mapper() {
		public double f(double x, double y) {return -Math.pow(x * x + y * y, 1.2 - pf);}
	}));
}

// Add some scatterplots
Coord3d[] points1 = new Coord3d[100], points2 = new Coord3d[100];
for (int i = 0; i < points1.length; i++)
	points1[i] = new Coord3d(
		(i+ 15*Math.random()) / 15, 
		(i + 30*Math.random()) / 15, 
		-Math.random()*500
	);
for (int i = 0; i < points2.length; i++)
	points2[i] = new Coord3d( 
		(100*Math.sin(i) + 30*Math.random()) / 15, 
		(100*Math.cos(i) + 15*Math.random()) / 15, 
		-100*Math.random()
	);
plt.addScatter(points1, new Color(1f, .0f, .0f)).addScatter(points2, new Color(.0f, .0f, 1f));

// Adding a parameterized hellix with parametrization α(t) = <5sin(10t), 5cos(10t), -80t>
Function<Double, Coord3d> hellix = (t) -> new Coord3d(5*Math.sin(10*t),5*Math.cos(10*t), -80*t);
plt.addCurve(hellix, 0, 5, 50000, new Color(1f,0,0));

A Demo for Bar Chart

Plotter barplot = new Plotter().plot();
// Demo for bar plot
for (int i = 1 ; i <= 3; i ++) {
	barplot.addBar(new Coord3d(2+2*i, 2+2*i,-150*i), 150*i, .5f, new Color(.1f, .8f, .3f));
	barplot.addBar(new Coord3d(2-2*i, 2-2*i,-150*i), 150*i, .5f, new Color(.1f, .8f, .3f));
}

A Demo for 2D Chart

double[] xs = new double[100], ys = new double[100];
for (int i = 1; i <=100; i++) {
	xs[i-1] = i; ys[i-1] = 2 * i + Math.random() * 10;
}
new Plotter().setUp2DPlot(1000, 800).
	set2DChartTitle("Fluctuations").set2DChartXLabel("x").set2DChartYLabel("y").
	add2DLineplot(xs, ys, "y = 2x + randonUniform(10)").plot();