package org.jzy3d.maths.parameq;

import org.jzy3d.maths.Coord3d;


public class ParametricTorus extends ParametricEquation2 {
    
    public ParametricTorus(double R, double r) {
        super();
        this.R = R;
        this.r = r;
    }
    @Override
    public Coord3d apply(double t, double u) {
        Coord3d coord = new Coord3d();
        coord.x = (float)(Math.cos(t) * (R + r * Math.cos(u)));
        coord.y = (float)(Math.sin(t) * (R + r * Math.cos(u))); // could extend circle
        coord.z = (float)(r * Math.sin(u));
        return coord;
    }
    
    protected double R;
    protected double r;
}