public class CoordonneesHomogenes {
  public float [] c;
  
  public CoordonneesHomogenes() {
    c = new float[4];
    c[0] = c[1] = c[2] = c[3] = 0;
  }
  
  public CoordonneesHomogenes(CoordonneesHomogenes ch) {
    c = new float[4];
    c[0] = ch.c[0];
    c[1] = ch.c[1];
    c[2] = ch.c[2];
    c[3] = ch.c[3];
  }
  
  public CoordonneesHomogenes(Position p) {
    c = new float[4];
    c[0] = p.c[0];
    c[1] = p.c[1];
    c[2] = p.c[2];
    c[3] = 1.0F;
  }
  
  public CoordonneesHomogenes(Direction d) {
    c = new float[4];
    c[0] = d.c[0];
    c[1] = d.c[1];
    c[2] = d.c[2];
    c[3] = 0.0F;
  }
  
  public String toString() {
    return(c[0]+" "+c[1]+" "+c[2]+" "+c[3]);
  }
  
  public CoordonneesHomogenes composition(TransformationGeometrique tg) {
    return(tg.transformation(this));
  }
}