RevitSdkSamples/SDK/Samples/FamilyCreation/WindowWizard/CS/CreatAlignment.cs

//
// (C) Copyright 2003-2019 by Autodesk, Inc.
//
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// object code form for any purpose and without fee is hereby granted,
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using System;
using Autodesk.Revit;
using Autodesk.Revit.DB;

namespace Revit.SDK.Samples.WindowWizard.CS
{
    /// <summary>
    /// The class allows users to create alignment
    /// </summary>
    class CreateAlignment
    {
        #region Class Memeber Variables
        /// <summary>
        /// store the document
        /// </summary>
        Document m_document;
        
        /// <summary>
        /// store the family item factory of creation
        /// </summary>        
        Autodesk.Revit.Creation.FamilyItemFactory m_familyCreator;
        #endregion

        /// <summary>
        /// The constructor of CreateAlignment class
        /// </summary>        
        /// <param name="doc">the document</param>
        public CreateAlignment(Document doc)
        {
            m_document = doc;          
            m_familyCreator = m_document.FamilyCreate;
        }

        #region Class Implementation
        /// <summary>
        /// The method is used to create alignment between two faces
        /// </summary>
        /// <param name="view">the view</param>
        /// <param name="face1">face1</param>
        /// <param name="face2">face2</param>
        public void AddAlignment(View view, Face face1, Face face2)
        {
            PlanarFace pFace1 = null;
            PlanarFace pFace2 = null;
            if (face1 is PlanarFace)
                pFace1 = face1 as PlanarFace;
            if (face2 is PlanarFace)
                pFace2 = face2 as PlanarFace;
            if (pFace1 != null && pFace2 != null)
            {
                SubTransaction subTransaction = new SubTransaction(m_document);
                subTransaction.Start();
                m_familyCreator.NewAlignment(view, pFace1.Reference, pFace2.Reference);
                subTransaction.Commit();
            }
        }
        #endregion
    }
}