Esempio n. 1
0
int ON_Intersect( 
                  const ON_Plane& plane, 
                  const ON_Circle& circle,
                  ON_3dPoint& point0,
                  ON_3dPoint& point1
                  )
{
	int rval = -1;
	ON_Line xline;
	double a,b;
	bool rc = ON_Intersect(plane, circle.Plane(), xline);
	if(rc)
	{
		rval = ON_Intersect(xline, circle, &a, point0, &b, point1); 
	}
	else
	{
		double d = plane.plane_equation.ValueAt( circle.Center() );
		if(d<ON_ZERO_TOLERANCE)
			rval =3;
		else 
			rval = 0;
	}
	return rval;
}
Esempio n. 2
0
ON_BOOL32 ON_Ellipse::Create( const ON_Circle& c )
{
  return Create( c.Plane(), c.Radius(), c.Radius() );
}