public bool IntersecteazaSegment(Linie linie)
{
if ((Start.Y < linie.Start.Y && Start.Y < linie.End.Y) || (Start.Y > linie.Start.Y && Start.Y > linie.End.Y))
{
return(false);
}
return(true);
}
private bool PunctInInteriorulObiectului(Point punct, Obiect obiect, int x)
{
var linie = new Linie(punct, new Point(x, punct.Y));
var count = 0;
foreach (var linieObiect in obiect.LiniiPerimetru)
{
if (linie.IntersecteazaSegment(linieObiect))
{
count++;
}
}
if (count % 2 == 1)
{
return(true);
}
else
{
return(false);
}
}
public bool IntersecteazaLinie(Linie otherLine, out Point intersectionPoint)
{
intersectionPoint = new Point(0, 0);
if (IsVertical && otherLine.IsVertical)
{
return(false);
}
//if (IsVertical || otherLine.IsVertical)
//{
// intersectionPoint = GetIntersectionPointIfOneIsVertical(otherLine, this);
// return true;
//}
double delta = A * otherLine.B - otherLine.A * B;
bool hasIntersection = Math.Abs(delta - 0) > 0.0001f;
if (hasIntersection)
{
double x = (otherLine.B * C - B * otherLine.C) / delta;
double y = (A * otherLine.C - otherLine.A * C) / delta;
intersectionPoint = new Point((int)x, (int)y);
}
return(hasIntersection);
}
public Linie(Linie l)
{
Start = new Point(l.Start.X, l.Start.Y);
End = new Point(l.End.X, l.End.Y);
}
