// Last edited on 2011-08-25 00:21:06 by stolfilocal

package tracking;

public class TrackRegion {
	
    private double C[] = {0.0, 0.0}; /* Center. */
    private double U[] = {0.0, 0.0}; /* U vector. */
    private double V[] = {0.0, 0.0}; /* V vector. */

    private String label = null; 

    /* Sets center coordinates: */
    public void set_C (double x, double y) {
            this.C[0] = x;
            this.C[1] = y;
    }

    public double[] get_C () {
            return this.C;
    }

    public double get_Cx () {
            return this.C[0];
    }

    public double get_Cy () {
            return this.C[1];
    }

    /*U*/
    public void set_U (double x, double y) {
            this.U[0] = x;
            this.U[1] = y;
    }

    public double[] get_U () {
            return this.U;
    }	

    public double get_Ux () {
            return this.U[0];
    }

    public double get_Uy () {
            return this.U[1];
    }

    /*V*/
    public void set_V (double x, double y) {
            this.V[0] = x;
            this.V[1] = y;
    }

    public double[] get_V () {
            return this.V;
    }	

    public double get_Vx () {
            return this.V[0];
    }

    public double get_Vy () {
            return this.V[1];
    }

    /*Label*/
    public void set_label (String label) {
            this.label = label;
    }

    public String get_label () {
            return label;
    }

    /* Sets all fields of this track region to the corresponding values from {S}, except the label. */
    public void update(S) {
        this.set_C(S.get_Cx(),S.get_Cy());
        this.set_U(S.get_Ux(),S.get_Uy());
        this.set_V(S.get_Vx(),S.get_Vy());
    }
}