private bool PickEdge(TWire edge, Point p, Graphics g)
{
ElementTypeInfo fromInfo = GetElementTypeInfo(edge.FromNode, g);
TPin inputPin = edge.ToRoute;
TPin outputPin = edge.FromRoute;
Point p1 = edge.FromNode.Bounds.Location;
int x1 = p1.X + fromInfo.Size.Width;
int y1 = p1.Y + GetPinOffset(outputPin.Index);
Point p2 = edge.ToNode.Bounds.Location;
int x2 = p2.X;
int y2 = p2.Y + GetPinOffset(inputPin.Index);
int tanLen = GetTangentLength(x1, x2);
BezierCurve2F curve = new BezierCurve2F(
new Vec2F(x1, y1),
new Vec2F(x1 + tanLen, y1),
new Vec2F(x2 - tanLen, y2),
new Vec2F(x2, y2));
Vec2F hitPoint = new Vec2F();
return(BezierCurve2F.Pick(curve, new Vec2F(p.X, p.Y), m_theme.PickTolerance, ref hitPoint));
}
private bool Pick(TEdge edge, Vec2F v)
{
int tolerance = m_theme.PickTolerance;
Point p1, p2, p3, p4;
GetTransitionPoints(edge, out p1, out p2, out p3, out p4);
// check for hit on transition, away from endpoints
BezierCurve2F curve = new BezierCurve2F(p1, p2, p3, p4);
Vec2F hitPoint = new Vec2F();
return(BezierCurve2F.Pick(curve, v, m_theme.PickTolerance, ref hitPoint));
}