IFC.NET is a simple class library to read and write IFCxml files.

IFC, IFC4, IFC4XML, CAFM-Connect, CAFM-Ring, buildingSMART
Install-Package Ifc.NET -Version 1.0.0




Simple c# classes to read and write a file in the format IFC 4 XML.

Start using Ifc.NET with NUGET (https://www.nuget.org/packages/Ifc.NET).
To install Ifc.NET in your .NET application, run the following command in the Package Manager Console in Visual Studio: "Install-Package Ifc.NET"

Your solution must run on the .NET Framework 4.5.

To read a file, please follow this steps:

Download an ifcxml sample file from here: https://github.com/CAFM-Connect/Ifc.NET/tree/master/src/SampleReader/SampleFiles and copy it to your computer.

Paste this code snippet into you code:

string Testfile = @"C:\Tmp\MyFirstIfcFile.ifcxml";
Ifc4.Document ifcDocument = Ifc4.Workspace.CurrentWorkspace.OpenDocument(Testfile);

Adjust the path to the file to the location, where you copied the sample file.

Run your application in Debug and look at the object ifcDocument.

For further information about the file spectification please visit http://www.buildingsmart-tech.org/ifc/IFC4/final/html/index.htm

Some more Samples

Sample for a spatial structure site/building/buildingstorey/room

string ifcFullName = @"C:\tmp\a.ifcxml";
Ifc4.Document document = Ifc4.Workspace.CurrentWorkspace.CreateDocument(ifcFullName, true);

Change some properties in header

var header = document.IfcXmlDocument.Header;
header.Organization = "My Organisation";

Add new Site

var ifcSite = document.Project.Sites.AddNewSite();
ifcSite.LongName = "A";

Add new building

var ifcBuilding = ifcSite.Buildings.AddNewBuilding();
ifcBuilding.LongName = "B";

Add new building storey

var ifcBuildingStorey = ifcBuilding.BuildingStoreys.AddNewBuildingStorey();
ifcBuildingStorey.LongName = "C";

Add new room

var ifcSpace = ifcBuildingStorey.Spaces.AddNewSpace();
ifcSpace.LongName = "D";

Save the IFC file