Getting element visual style

[CBenghi]

I'm opening this issue on behalf of @Ajes1337, who asked the question in the webUI, but using WindowsUI primitives.

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@Ajes1337 Says:

I have been struggling for days, how to get Vertices, Triangles and Material out of an IFC file with Xbim (in XbimWindowsUI)..
I have the Vertices and Triangles.. but are pulling my hair out now, just to figure out how I get a material color or a valid Material.

Anyone know a 'simple' way to get the material?

Here is my code that get Vertices and Triangles:

since I cant seem to use this inbuild 'insert code' here is pastbin: https://pastebin.com/VfmG4rfN

private static byte[] ReadIfcFileAjesStyle(string ifcFilename) {
	List<Vector3[]> vecs = new List<Vector3[]>();
	List<int[]> trises = new List<int[]>();
	List<string> types = new List<string>();
	using (var model2 = IfcStore.Open(ifcFilename)) {
		if (model2.GeometryStore.IsEmpty) {
			Console.WriteLine("model.GeometryStore.IsEmpty");
			var context = new Xbim3DModelContext(model2);
			context.CreateContext();//skal køre for at virke..
		}
		XbimModelPositioningCollection modelPositions = new XbimModelPositioningCollection();
		short userDefinedId = 0;
		model2.UserDefinedId = userDefinedId;
		modelPositions.AddModel(model2.ReferencingModel);
		if (model2.IsFederation) {
			foreach (IReferencedModel refModel in model2.ReferencedModels) {
				refModel.Model.UserDefinedId = ++userDefinedId;
				IfcStore v = refModel.Model as IfcStore;
				if (v != null)
					modelPositions.AddModel(v.ReferencingModel);
			}
		}
		XbimRect3D modelBounds = modelPositions.GetEnvelopeInMeters();
		XbimPoint3D p = modelBounds.Centroid();
		XbimVector3D modelTranslation = new XbimVector3D(-p.X, -p.Y, -p.Z);
		double oneMeter = model2.ModelFactors.OneMetre;
		XbimMatrix3D translation = XbimMatrix3D.CreateTranslation(modelTranslation * oneMeter);
		XbimMatrix3D scaling = XbimMatrix3D.CreateScale(1 / oneMeter);
		XbimMatrix3D transform = translation * scaling;
		WpfMaterial mat = new WpfMaterial();
		Color SelectionColor = Colors.Blue;
		mat.CreateMaterial(new XbimColour("Selection", SelectionColor.ScR, SelectionColor.ScG, SelectionColor.ScB, SelectionColor.ScA));
		Console.WriteLine("model.Instances amount: " + model2.Instances.Count);
		bool runOnce = false;
		foreach (IPersistEntity entityThe in model2.Instances) {
			WpfMeshGeometry3D m = WpfMeshGeometry3D.GetGeometry(entityThe, transform, mat);
			string nameOfType = entityThe.GetType().ToString();
			List<Vector3> vecsHere = new List<Vector3>();
			foreach (Point3D point in m.Mesh.Positions) {
				vecsHere.Add(new Vector3(point));
			}
			vecs.Add(vecsHere.ToArray());
			trises.Add(m.Mesh.TriangleIndices.ToArray());
			types.Add(nameOfType);
		}
	}
	byte[] data = SerializerMeshPack.SerializeMeshPack(vecs, trises, types);
	return data;
}