public static bool GeometricEquals(this IfcOpenShell a, IfcOpenShell b)
{
if (a == null && b == null)
{
return(false); //null
}
if (a == null || b == null)
{
return(false); //different type
}
List <IfcFace> fsb = b.CfsFaces.ToList();
List <IfcFace> fsa = a.CfsFaces.ToList();
if (fsa.Count != fsb.Count)
{
return(false);
}
for (int i = 0; i < fsa.Count; i++)
{
if (!fsa[i].GeometricEquals(fsb[i]))
{
return(false);
}
}
return(true);
}
private static IfcShellBasedSurfaceModel ToIfcShellBasedSurfaceModel(this Lamina lamina, Document doc)
{
var plane = lamina.Perimeter.Plane().ToIfcPlane(doc);
var outer = lamina.Perimeter.ToIfcCurve(doc);
var bplane = new IfcCurveBoundedPlane(plane, outer, new List <IfcCurve> {
});
var bounds = new List <IfcFaceBound> {
};
var loop = lamina.Perimeter.ToIfcPolyLoop(doc);
var faceBounds = new IfcFaceBound(loop, true);
bounds.Add(faceBounds);
var face = new IfcFaceSurface(bounds, bplane, true);
var openShell = new IfcOpenShell(new List <IfcFace> {
face
});
var shell = new IfcShell(openShell);
var ssm = new IfcShellBasedSurfaceModel(new List <IfcShell> {
shell
});
doc.AddEntity(plane);
doc.AddEntity(outer);
doc.AddEntity(bplane);
doc.AddEntity(loop);
doc.AddEntity(faceBounds);
doc.AddEntity(face);
doc.AddEntity(openShell);
return(ssm);
}
public static int GetGeometryHashCode(this IfcOpenShell shell)
{
int hash = shell.CfsFaces.Count;
if (hash > 30)
{
return(hash ^ shell.GetType().Name.GetHashCode()); //probably enough for a uniquish hash
}
foreach (IfcFace face in shell.CfsFaces)
{
hash ^= face.GetGeometryHashCode();
}
return(hash);
}
public static bool GeometricEquals(this IfcOpenShell a, IfcOpenShell b)
{
if (a == null && b == null) return false; //null
if (a == null || b == null) return false; //different type
List<IfcFace> fsb = b.CfsFaces.ToList();
List<IfcFace> fsa = a.CfsFaces.ToList();
if (fsa.Count != fsb.Count) return false;
for (int i = 0; i < fsa.Count; i++)
{
if (!fsa[i].GeometricEquals(fsb[i])) return false;
}
return true;
}
/// <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 IfcShell a, IfcShell b)
{
IfcOpenShell ob = b as IfcOpenShell;
IfcOpenShell oa = a as IfcOpenShell;
if (ob != null && oa != null)
{
return(oa.GeometricEquals(ob));
}
IfcClosedShell cb = b as IfcClosedShell;
IfcClosedShell ca = a as IfcClosedShell;
if (cb != null && ca != null)
{
return(ca.GeometricEquals(cb));
}
return(false);
}
public IXbimShell CreateShell(IfcOpenShell shell)
{
return(_engine.CreateShell(shell));
}
public IXbimShell CreateShell(IfcOpenShell shell)
{
return _engine.CreateShell(shell);
}
