| static private CircumCircleCenter ( Point A, Point B, Point C ) : Point | ||
| A | Point | |
| B | Point | |
| C | Point | |
| return | Point | |
public static VCircleEvent CircleCheckDataNode(VDataNode n, double ys)
{
var l = LeftDataNode(n);
var r = RightDataNode(n);
if (l == null || r == null || l.DataPoint == r.DataPoint || l.DataPoint == n.DataPoint || n.DataPoint == r.DataPoint)
{
return(null);
}
if (MathTools.ccw(l.DataPoint[0], l.DataPoint[1], n.DataPoint[0], n.DataPoint[1], r.DataPoint[0], r.DataPoint[1], false) <= 0)
{
return(null);
}
var center = Fortune.CircumCircleCenter(l.DataPoint, n.DataPoint, r.DataPoint);
var vc = new VCircleEvent {
NodeN = n,
NodeL = l,
NodeR = r,
Center = center,
Valid = true
};
if (vc.Y > ys || Math.Abs(vc.Y - ys) < 1e-10)
{
return(vc);
}
return(null);
}
public static VCircleEvent CircleCheckDataNode(VDataNode n, float ys)
{
VDataNode l = VNode.LeftDataNode(n);
VDataNode r = VNode.RightDataNode(n);
if (l == null || r == null || l.DataPoint == r.DataPoint || l.DataPoint == n.DataPoint || n.DataPoint == r.DataPoint)
{
return(null);
}
if (MathTools.ccw(l.DataPoint[0], l.DataPoint[1], n.DataPoint[0], n.DataPoint[1], r.DataPoint[0], r.DataPoint[1], false) <= 0)
{
return(null);
}
Vector3 Center = Fortune.CircumCircleCenter(l.DataPoint, n.DataPoint, r.DataPoint);
VCircleEvent VC = new VCircleEvent();
VC.NodeN = n;
VC.NodeL = l;
VC.NodeR = r;
VC.Center = Center;
VC.Valid = true;
if (VC.Y >= ys)
{
return(VC);
}
return(null);
}
public static VCircleEvent CircleCheckDataNode(VDataNode n, double ys)
{
VDataNode l = VNode.LeftDataNode(n);
VDataNode r = VNode.RightDataNode(n);
if (l == null || r == null || l.DataPoint == r.DataPoint || l.DataPoint == n.DataPoint || n.DataPoint == r.DataPoint)
{
return(null);
}
if (MathF.ccw(l.DataPoint.X, l.DataPoint.Y, n.DataPoint.X, n.DataPoint.Y, r.DataPoint.X, r.DataPoint.Y, false) <= 0)
{
return(null);
}
Point Center = Fortune.CircumCircleCenter(l.DataPoint, n.DataPoint, r.DataPoint);
VCircleEvent VC = new VCircleEvent();
VC.NodeN = n;
VC.NodeL = l;
VC.NodeR = r;
VC.Center = Center;
VC.Valid = true;
if (VC.Y > ys || Math.Abs(VC.Y - ys) < 1e-10)
{
return(VC);
}
return(null);
}