internal override bool isCross(GeoRect SelectPoint)
{
//4 проверки на пересечения прямоугольника и линии (со сторонами) + если внутри
GeoPoint A = new GeoPoint(SelectPoint.Xmin, SelectPoint.Ymax);
GeoPoint B = new GeoPoint(SelectPoint.Xmax, SelectPoint.Ymax);
GeoPoint C = new GeoPoint(SelectPoint.Xmax, SelectPoint.Ymin);
GeoPoint D = new GeoPoint(SelectPoint.Xmin, SelectPoint.Ymin);
if (GeoRect.IsCrosLines(B, A, BeginPoint, EndPoint))
{
return(true);
}
if (GeoRect.IsCrosLines(C, B, BeginPoint, EndPoint))
{
return(true);
}
if (GeoRect.IsCrosLines(C, D, BeginPoint, EndPoint))
{
return(true);
}
if (GeoRect.IsCrosLines(D, A, BeginPoint, EndPoint))
{
return(true);
}
if (BeginPoint.x >= SelectPoint.Xmax && BeginPoint.x <= SelectPoint.Xmin &&
BeginPoint.y <= SelectPoint.Ymax && BeginPoint.y >= SelectPoint.Ymin)
{
return(true);
}
return(false);
}
internal override bool isCross(GeoRect SelectPoint)
{
if (NodesCount < 2)
{
return(false);
}
GeoPoint A = new GeoPoint(SelectPoint.Xmin, SelectPoint.Ymax);
GeoPoint B = new GeoPoint(SelectPoint.Xmax, SelectPoint.Ymax);
GeoPoint C = new GeoPoint(SelectPoint.Xmax, SelectPoint.Ymin);
GeoPoint D = new GeoPoint(SelectPoint.Xmin, SelectPoint.Ymin);
for (int i = 0; i < Nodes.Count - 1; i++)
{
if (GeoRect.IsCrosLines(B, A, Nodes[i], Nodes[i + 1]))
{
return(true);
}
if (GeoRect.IsCrosLines(C, B, Nodes[i], Nodes[i + 1]))
{
return(true);
}
if (GeoRect.IsCrosLines(C, D, Nodes[i], Nodes[i + 1]))
{
return(true);
}
if (GeoRect.IsCrosLines(D, A, Nodes[i], Nodes[i + 1]))
{
return(true);
}
if (Nodes[i].x >= SelectPoint.Xmax && Nodes[i].x <= SelectPoint.Xmin &&
Nodes[i].y <= SelectPoint.Ymax && Nodes[i].y >= SelectPoint.Ymin)
{
return(true);
}
}
return(false);
}