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using System;
using Autodesk.Revit;
using Autodesk.Revit.DB;
using Autodesk.Revit.ApplicationServices;

namespace Revit.SDK.Samples.WindowWizard.CS
{
   /// <summary>
   /// The class allows users to create dimension using Document.FamilyCreate.NewDimension() function
   /// </summary>
   class CreateDimension
   {
      #region Class Memeber Variables
      /// <summary>
      /// store the document
      /// </summary>
      Document m_document;

      /// <summary>
      /// store the application
      /// </summary>
      Application m_application;
      #endregion

      /// <summary>
      /// constructor of CreateDimension class
      /// </summary>
      /// <param name="app">the application</param>
      /// <param name="doc">the document</param>
      public CreateDimension(Application app, Document doc)
      {
         m_application = app;
         m_document = doc;
      }

      #region Class Implementation
      /// <summary>
      /// This method is used to create dimension among three reference planes
      /// </summary>
      /// <param name="view">the view</param>
      /// <param name="refPlane1">the first reference plane</param>
      /// <param name="refPlane2">the second reference plane</param>
      /// <param name="refPlane">the middle reference plane</param>
      /// <returns>the new dimension</returns>
      public Dimension AddDimension(View view, ReferencePlane refPlane1, ReferencePlane refPlane2, ReferencePlane refPlane)
      {
         Dimension dim;
         Autodesk.Revit.DB.XYZ startPoint = new Autodesk.Revit.DB.XYZ();
         Autodesk.Revit.DB.XYZ endPoint = new Autodesk.Revit.DB.XYZ();
         Line line;
         Reference ref1;
         Reference ref2;
         Reference ref3;
         ReferenceArray refArray = new ReferenceArray();
         ref1 = refPlane1.GetReference();
         ref2 = refPlane2.GetReference();
         ref3 = refPlane.GetReference();
         startPoint = refPlane1.FreeEnd;
         endPoint = refPlane2.FreeEnd;
         line = Line.CreateBound(startPoint, endPoint);
         if (null != ref1 && null != ref2 && null != ref3)
         {
            refArray.Append(ref1);
            refArray.Append(ref3);
            refArray.Append(ref2);
         }
         SubTransaction subTransaction = new SubTransaction(m_document);
         subTransaction.Start();
         dim = m_document.FamilyCreate.NewDimension(view, line, refArray);
         subTransaction.Commit();
         return dim;
      }

      /// <summary>
      /// The method is used to create dimension between referenceplane and face
      /// </summary>
      /// <param name="view">the view in which the dimension is created</param>
      /// <param name="refPlane">the reference plane</param>
      /// <param name="face">the face</param>
      /// <returns>the new dimension</returns>
      public Dimension AddDimension(View view, ReferencePlane refPlane, Face face)
      {
         Dimension dim;
         Autodesk.Revit.DB.XYZ startPoint = new Autodesk.Revit.DB.XYZ();
         Autodesk.Revit.DB.XYZ endPoint = new Autodesk.Revit.DB.XYZ();
         Line line;
         Reference ref1;
         Reference ref2;
         ReferenceArray refArray = new ReferenceArray();
         ref1 = refPlane.GetReference();
         PlanarFace pFace = face as PlanarFace;
         ref2 = pFace.Reference;
         if (null != ref1 && null != ref2)
         {
            refArray.Append(ref1);
            refArray.Append(ref2);
         }
         startPoint = refPlane.FreeEnd;
         endPoint = new Autodesk.Revit.DB.XYZ(startPoint.X, pFace.Origin.Y, startPoint.Z);
         SubTransaction subTransaction = new SubTransaction(m_document);
         subTransaction.Start();
         line = Line.CreateBound(startPoint, endPoint);
         dim = m_document.FamilyCreate.NewDimension(view, line, refArray);
         subTransaction.Commit();
         return dim;
      }

      /// <summary>
      /// The method is used to create dimension between two faces
      /// </summary>
      /// <param name="view">the view</param>
      /// <param name="face1">the first face</param>
      /// <param name="face2">the second face</param>
      /// <returns>the new dimension</returns>
      public Dimension AddDimension(View view, Face face1, Face face2)
      {
         Dimension dim;
         Autodesk.Revit.DB.XYZ startPoint = new Autodesk.Revit.DB.XYZ();
         Autodesk.Revit.DB.XYZ endPoint = new Autodesk.Revit.DB.XYZ();
         Line line;
         Reference ref1;
         Reference ref2;
         ReferenceArray refArray = new ReferenceArray();
         PlanarFace pFace1 = face1 as PlanarFace;
         ref1 = pFace1.Reference;
         PlanarFace pFace2 = face2 as PlanarFace;
         ref2 = pFace2.Reference;
         if (null != ref1 && null != ref2)
         {
            refArray.Append(ref1);
            refArray.Append(ref2);
         }
         startPoint = pFace1.Origin;
         endPoint = new Autodesk.Revit.DB.XYZ(startPoint.X, pFace2.Origin.Y, startPoint.Z);
         SubTransaction subTransaction = new SubTransaction(m_document);
         subTransaction.Start();
         line = Line.CreateBound(startPoint, endPoint);
         dim = m_document.FamilyCreate.NewDimension(view, line, refArray);
         subTransaction.Commit();
         return dim;
      }
      #endregion
   }
}