/// <summary>
/// returns a Hash for the geometric behaviour of this object
/// </summary>
/// <param name="solid"></param>
/// <returns></returns>
public static int GetGeometryHashCode(this IfcBoundingBox solid)
{
Func <double, int> f = solid.ModelOf.ModelFactors.GetGeometryDoubleHash;
return(solid.Corner.GetGeometryHashCode() ^
f(solid.XDim) ^
f(solid.YDim) ^
f(solid.ZDim));
}
/// <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 IfcBoundingBox a, IfcRepresentationItem b)
{
var bb = b as IfcBoundingBox;
if (bb == null)
{
return(false); //different types are not the same
}
double precision = a.ModelOf.ModelFactors.Precision;
return(Math.Abs(a.XDim - bb.XDim) <= precision &&
Math.Abs(a.YDim - bb.YDim) <= precision &&
Math.Abs(a.ZDim - bb.ZDim) <= precision &&
a.Corner.GeometricEquals(bb.Corner));
}
public override void Parse(int propIndex, IPropertyValue value, int[] nestedIndex)
{
switch (propIndex)
{
case 0:
case 1:
base.Parse(propIndex, value, nestedIndex);
return;
case 2:
_enclosure = (IfcBoundingBox)(value.EntityVal);
return;
default:
throw new XbimParserException(string.Format("Attribute index {0} is out of range for {1}", propIndex + 1, GetType().Name.ToUpper()));
}
}
public IXbimSolid CreateSolid(IfcBoundingBox ifcSolid)
{
return(_engine.CreateSolid(ifcSolid));
}
