} // Bounding box of all mesh in this geometry store
/// <summary>
/// Helper function to calculate the intersect value of two (XbimRect3D) Bounding box.
/// </summary>
/// <param name="boxA">Bounding box A</param>
/// <param name="boxB">Bounding box B</param>
/// <returns>Intersect volume.</returns>
public static double Intersect(XbimRect3D boxA, XbimRect3D boxB)
{
// bounding boxes do not intersect
if (!boxA.Intersects(boxB))
{
return(0.0);
}
double lowX = Math.Max(boxA.Min.X, boxB.Min.X), lowY = Math.Max(boxA.Min.Y, boxB.Min.Y), lowZ = Math.Max(boxA.Min.Z, boxB.Min.Z);
double highX = Math.Min(boxA.Max.X, boxB.Max.X), highY = Math.Min(boxA.Max.Y, boxB.Max.Y), highZ = Math.Min(boxA.Max.Z, boxB.Max.Z);
double xA = Math.Min(lowX, highX), yA = Math.Min(lowY, highY), zA = Math.Min(lowZ, highZ);
double xB = Math.Max(lowX, highX), yB = Math.Max(lowY, highY), zB = Math.Max(lowZ, highZ);
if (xA > xB || yA > yB || zA > zB)
{
return(0.0);
}
return((xB - xA) * (yB - yA) * (zB - zA));
}