Application: gvSIG desktop

Una nota sobre el algoritmo a usar para desplazar los puntos.

public static Polygon createPolygon(int vertices, double angleOffset, Rectangle r) {
        if (vertices < 1) throw new IllegalArgumentException ("Vertices must be > 0");
        double step = 2 * Math.PI / vertices;
        int[] x = new int[vertices];
        int[] y = new int[vertices];
        int xrad = r.width / 2;
        int yrad = r.height / 2;
        for (int i = 0; i < vertices; i++) {
            x[i] = r.x + xrad + (int) (Math.cos(angleOffset + i * step) * xrad);
            y[i] = r.y + yrad + (int) (Math.sin(angleOffset + i * step) * yrad);
        }
        Polygon p = new Polygon(x, y, vertices);
        return p;
    }