// ----------------------------------------------------------------------------------------------
// -- Cylinder ----------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------------
public static bool Intersect(Bounding.Cylinder a, Bounding.Line b, out object intersection) // CylHeight implemented
{
intersection = null;
Vector3 v = b.P1 - b.P0;
RayIntersection rOut;
return(Intersect(a, new Ray(b.P0, Vector3.Normalize(v)), out rOut) && rOut.Distance <= v.Length());
}
public static bool Intersect(Bounding.Box a, Bounding.Line b, out object intersection)
{
intersection = null;
Vector3 v = b.P1 - b.P0;
RayIntersection rOut = new RayIntersection();
return(Intersect(a, new Ray(b.P0, Vector3.Normalize(v)), out rOut) && rOut.Distance < v.Length());
}
public static bool Intersect(BoundingBox a, Bounding.Line b, out object intersection)
{
intersection = null;
float d;
Vector3 v = b.P1 - b.P0;
return(BoundingBox.Intersects(a, new Ray(b.P0, Vector3.Normalize(v)), out d) && d <= v.Length());
}
//public static RSpatialRelation Relation(BoundingBox a, System.Drawing.RectangleF b)
//{
// return Relation(a, Boundings.BoundingToBox(b));
//}
public static RSpatialRelation Relation(BoundingBox a, Bounding.Line b)
{
float d;
Vector3 v = b.P1 - b.P0;
if (!BoundingBox.Intersects(a, new Ray(b.P0, Vector3.Normalize(v)), out d) || d > v.Length())
{
return(RSpatialRelation.Outside);
}
else if (Relation(a, b.P0) == RSpatialRelation.BInsideA && Relation(a, b.P1) == RSpatialRelation.BInsideA)
{
return(RSpatialRelation.BInsideA);
}
else
{
return(RSpatialRelation.Intersect);
}
}
// ----------------------------------------------------------------------------------------------
// -- RectangleF --------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------------
public static RSpatialRelation Relation(RectangleF a, Bounding.Line b)
{
return(Relation(new BoundingBox(new Vector3(a.X, a.Y, float.MinValue), new Vector3(a.X + a.Width, a.Y + a.Height, float.MaxValue)), b));
}