public List <Point> Intersection(Cirlce cirlse2)
{
double distance = VectorOperations.CalcLenghtVector(this.Center, cirlse2.Center);
if (this.Radius + cirlse2.Radius < distance || this.Abs(this.Radius + cirlse2.Radius) > distance)
{
return(null);
}
else
{
double catetFirstCircle = ((this.Radius * this.Radius) - (cirlse2.Radius * cirlse2.Radius) + (distance * distance)) / (2 * distance);
double hight = Math.Sqrt((this.Radius * this.Radius) - (catetFirstCircle * catetFirstCircle));
double intersectionpointX = this.Center.X + (catetFirstCircle * (cirlse2.Center.X - this.Center.X) / distance);
double intersectionpointY = this.Center.Y + (catetFirstCircle * (cirlse2.Center.Y - this.Center.Y) / distance);
Point pointForIntersection = new Point(intersectionpointX, intersectionpointY);
intersectionpointX = pointForIntersection.X + (hight * (cirlse2.Center.Y - this.Center.Y) / distance);
intersectionpointY = pointForIntersection.Y - (hight * (cirlse2.Center.X - this.Center.X) / distance);
Point firstResaultPoint = new Point(intersectionpointX, intersectionpointY);
intersectionpointX = pointForIntersection.X - (hight * (cirlse2.Center.Y - this.Center.Y) / distance);
intersectionpointY = pointForIntersection.Y + (hight * (cirlse2.Center.X - this.Center.X) / distance);
Point secondResaultPoint = new Point(intersectionpointX, intersectionpointY);
return(new List <Point> {
firstResaultPoint, secondResaultPoint
});
}
}
public void ChangeSize(Point point, Point point2)
{
this.Center = point;
this.PointOnBoard = point2;
this.Radius = VectorOperations.CalcLenghtVector(point, point2);
}
public Cirlce(Point center, Point pointOnBoard)
{
this.Center = center;
this.PointOnBoard = pointOnBoard;
this.Radius = VectorOperations.CalcLenghtVector(center, pointOnBoard);
}