class MyPoint {
  float x, y, z;

  MyPoint(float xinput, float yinput, float zinput){
    x = xinput;
    y = yinput;
    z = zinput;
  }

  void move(float xoff, float yoff, float zoff){
    x = x + xoff;
    y = y + yoff;
    z = z + zoff;
  }
  void scale(float xs, float ys, float zs){
    x = x * xs;
    y = y * ys;
    z = z * zs;
  }
  // Rotation around the z-axis
  void rotatez(float angle ){
    float tempx = x * cos(angle) - y * sin(angle);
    float tempy = y * cos(angle) + x * sin(angle);
    x = tempx;
    y = tempy;
  }
  //Rotation around the x-axis
  void rotatex(float angle ){
    float tempy = y * cos(angle) - z * sin(angle);
    float tempz = z * cos(angle) + y * sin(angle);
    y = tempy;
    z = tempz;
  }
  //Rotation around the y-axis
  void rotatey(float angle ){
    float tempx = x * cos(angle) - z * sin(angle);
    float tempz = z * cos(angle) + x * sin(angle);
    x = tempx;
    z = tempz;
  }

  int xP(float eye){
    float t = 1.0/(1.0+((float) z / eye ));
    int px = int( x * t);
    return(px);
  }
  int yP(float eye){
    float t = 1.0/(1.0+((float) z / eye ));
    int py = int( y * t);
    return(py);
  }
}