public float getDistance(TuioPoint pt)
{
float dx = xpos - pt.getX();
float dy = ypos - pt.getY();
return((float)Math.Sqrt(dx * dx + dy * dy));
}
public float getAngle(TuioPoint tuioPoint)
{
float side = tuioPoint.getX() - xpos;
float height = tuioPoint.getY() - ypos;
float distance = tuioPoint.getDistance(xpos, ypos);
float angle = (float)(Math.Asin(side / distance) + Math.PI / 2);
if (height < 0)
{
angle = 2.0f * (float)Math.PI - angle;
}
return(angle);
}
public void update(TuioPoint p)
{
this.xpos = p.getX();
this.ypos = p.getY();
}
public TuioPoint(TuioPoint p)
{
this.xpos = p.getX();
this.ypos = p.getY();
}
