internal override bool isCross(GeoRect SelectPoint)
{
if (NodesCount < 2)
{
return(false);
}
GeoPoint A = new GeoPoint((SelectPoint.Xmax + SelectPoint.Xmin) / 2,
(SelectPoint.Ymax + SelectPoint.Ymin) / 2);
GeoPoint B = new GeoPoint(Bounds.Xmin + 1, (SelectPoint.Ymax + SelectPoint.Ymin) / 2);
int k = 0;
if (GeoRect.isIntersect(Bounds, SelectPoint))
{
for (int i = 0; i < Nodes.Count - 1; i++)
{
if (GeoRect.IsCrosLines(A, B, Nodes[i], Nodes[i + 1]) &&
A.y != Nodes[i].y &&
Nodes[i].y != Nodes[i + 1].y)
{
k++;
}
}
if ((k % 2) == 1)
{
return(true);
}
}
return(false);
}
public static GeoRect Union(GeoRect A, GeoRect B)
{
if (!A.isCucumber)
{
return(B);
}
if (!B.isCucumber)
{
return(A);
}
GeoRect result = new GeoRect(Math.Min(A.Xmax, B.Xmax),
Math.Max(A.Xmin, B.Xmin),
Math.Min(A.Ymin, B.Ymin),
Math.Max(A.Ymax, B.Ymax));
return(result);
}
public static bool isIntersect(GeoRect A, GeoRect B)
{
//yay!
if ((B.Xmax >= A.Xmax && B.Xmax <= A.Xmin && B.Ymax <= A.Ymax && B.Ymax >= A.Ymin) ||
(B.Xmin >= A.Xmax && B.Xmin <= A.Xmin && B.Ymin <= A.Ymax && B.Ymin >= A.Ymin) ||
(B.Xmax >= A.Xmax && B.Xmax <= A.Xmin && B.Ymin <= A.Ymax && B.Ymin >= A.Ymin) ||
(B.Xmin >= A.Xmax && B.Xmin <= A.Xmin && B.Ymax <= A.Ymax && B.Ymax >= A.Ymin)
)
{
return(true);
}
if ((A.Xmax >= B.Xmax && A.Xmax <= B.Xmin && A.Ymax <= B.Ymax && A.Ymax >= B.Ymin) ||
(A.Xmin >= B.Xmax && A.Xmin <= B.Xmin && A.Ymin <= B.Ymax && A.Ymin >= B.Ymin) ||
(A.Xmax >= B.Xmax && A.Xmax <= B.Xmin && A.Ymin <= B.Ymax && A.Ymin >= B.Ymin) ||
(A.Xmin >= B.Xmax && A.Xmin <= B.Xmin && A.Ymax <= B.Ymax && A.Ymax >= B.Ymin)
)
{
return(true);
}
return(false);
}