This is a CSharp wrapper for the famous IfcEngine.dll (http://rdf.bg). Though a basic PInvoke wrapper has already provided, the users have to deal with different platforms (x86 or x64), and there is a lack of uniform API for different platforms. This is why I create this project. In this repo, there is a CSharp wrapper for IfcEngine, and also a simple Ifc Viewer based on CSharp and Helix-toolkit. When creating this project, C# examples and the API doc provided by RDF Ltd. were the main references, many thanks to them.

1. Support AnyCpu, no need to use different wrapper for different platforms, the project will handle this;
2. Better API, use enums for engine settings, masks, and value types;
3. CSharp style for methods naming;
4. A CSharp version of Ifc Viewer based on Helix-toolkit and this wrapper, demostrates how to use this wrapper.

this project follows MIT license (http://opensource.org/licenses/MIT); other libs or files follow there own license which listed as follows:

1. both x86 and x64 version of IfcEngine.dll ( as well as *-Setting.xml) are the products of RDF Ltd., refer to there website (http://rdf.bg) for license information;
2. Helix-toolkit: refer to (https://github.com/helix-toolkit/helix-toolkit) for license information.

1. Remove some unused functions;
2. More features for Ifc Viewer;
3. ...