/* Auteur: Nicolas JANEY                                */
/* nicolas.janey@univ-fcomte.fr                         */
/* Octobre 2008                                         */
/* Une classe coordonnees homogenes en trois dimensions */

public class CoordonneesHomogenes3D {
  protected double [] c;

  public CoordonneesHomogenes3D() {
    c = new double[4];
  }

  public CoordonneesHomogenes3D(double x,double y,double z,double t) {
    c = new double[4];
    c[0] = x;
    c[1] = y;
    c[2] = z;
    c[3] = t;
  }

  public CoordonneesHomogenes3D(CoordonneesHomogenes3D ch) {
    c = new double[4];
    c[0] = ch.c[0];
    c[1] = ch.c[1];
    c[2] = ch.c[2];
    c[3] = ch.c[3];
  }

  public CoordonneesHomogenes3D(double [] t) {
    c = new double[4];
    c[0] = t[0];
    c[1] = t[1];
    c[2] = t[2];
    c[3] = t[3];
  }
  
  public void setX(double x) {
    c[0] = x;
  }
  
  public double getX() {
    return(c[0]);
  }
  
  public void setY(double y) {
    c[1] = y;
  }
  
  public double getY() {
    return(c[1]);
  }
  
  public void setZ(double z) {
    c[2] = z;
  }
  
  public double getZ() {
    return(c[2]);
  }
  
  public void setT(double t) {
    c[3] = t;
  }
  
  public double getT() {
    return(c[3]);
  }
    
  public double [] getValue() {
    double [] nc = new double[4];
    nc[0] = c[0];
    nc[1] = c[1];
    nc[2] = c[2];
    nc[3] = c[3];
    return(nc);
  }
  
  public String toString() {
    String s = "[";
    int i;
    for ( i = 0 ; i < c.length-1 ; i++ )
      s += (c[i]+",");
    s += c[i]+"]";
    return(s);
  }
}