import java.io.*;

class Point extends PS
{
     double px=0.0,py=0.0; double cx=0.0,cy=0.0; double scale=1; 
     int itype=1; 
     
     public Point(double x, double y)
     { 
       px=x;py=y;cx=x;cy=y;
      }

    void move(double x, double y)
       {
       px = px+x;
       py = py+y;
      }


    void center(double x, double y)
       {
        cx=x;
        cy=y;
      }

    void rotate(double theta)
       { double t,dx,dy;
        t=3.14159*theta/180.0;dx=px-cx;dy=py-cy;
        px=cx+dx*Math.cos(t)-dy*Math.sin(t);
        py=cy+dx*Math.sin(t)+dy*Math.cos(t);
      }

    void expand(double times)
       { 
        px=cx+(px-cx)*times;
        py=cy+(py-cy)*times;
      }

    void draw()
       {
       double x1, y1;

      x1 = ((px-xw1)/(xw2-xw1)*(xv2-xv1) + xv1)*xsize;
      y1 = ((py-yw1)/(yw2-yw1)*(yv2-yv1) + yv1)*ysize;

       switch(itype) {  case 1 : this.square(px,py); break; 
                     }
      }
}