/// <summary>
/// returns a Hash for the geometric behaviour of this object
/// </summary>
/// <param name="solid"></param>
/// <returns></returns>
public static int GetGeometryHashCode(this IfcUShapeProfileDef profile)
{
Func <double, int> f = profile.Model.ModelFactors.GetGeometryDoubleHash;
int hash = f(profile.WebThickness) ^
f(profile.FlangeThickness) ^
f(profile.FlangeWidth) ^
f(profile.Depth) ^
profile.Position.GetGeometryHashCode();
if (profile.FilletRadius.HasValue)
{
hash ^= f(profile.FilletRadius ?? 0);
}
if (profile.EdgeRadius.HasValue)
{
hash ^= f(profile.EdgeRadius ?? 0);
}
if (profile.FlangeSlope.HasValue)
{
hash ^= f(profile.FlangeSlope ?? 0);
}
if (profile.CentreOfGravityInX.HasValue)
{
hash ^= f(profile.CentreOfGravityInX ?? 0);
}
return(hash);
}
/// <summary>
/// Compares two objects for geomtric equality
/// </summary>
/// <param name="a"></param>
/// <param name="b">object to compare with</param>
/// <returns></returns>
public static bool GeometricEquals(this IfcUShapeProfileDef a, IfcProfileDef b)
{
IfcUShapeProfileDef p = b as Xbim.Ifc2x3.ProfileResource.IfcUShapeProfileDef;
if (p == null)
{
return(false); //different types are not the same
}
return(a.WebThickness == p.WebThickness &&
a.FlangeThickness == p.FlangeThickness &&
a.FlangeWidth == p.FlangeWidth &&
a.Depth == p.Depth &&
a.FilletRadius == p.FilletRadius &&
a.EdgeRadius == p.EdgeRadius &&
a.FlangeSlope == p.FlangeSlope &&
a.CentreOfGravityInX == p.CentreOfGravityInX &&
a.Position.GeometricEquals(p.Position));
}