RevitSdkSamples/SDK/Samples/NewRoof/CS/RoofsManager/ExtrusionRoofManager.cs

//
// (C) Copyright 2003-2019 by Autodesk, Inc.
//
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using System;
using System.Collections.Generic;
using System.Text;

using Autodesk.Revit;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;

namespace Revit.SDK.Samples.NewRoof.RoofsManager.CS
{
    /// <summary>
    /// The ExtrusionRoofManager class is to manage the creation of the Extrusion roof.
    /// </summary>
    class ExtrusionRoofManager
    {
        // To store a reference to the commandData
        ExternalCommandData m_commandData;
        // To store a reference to the creation document
        Autodesk.Revit.Creation.Document m_creationDoc;
        // To store a reference to the creation application
        Autodesk.Revit.Creation.Application m_creationApp;

        /// <summary>
        /// The construct of ExtrusionRoofManager class.
        /// </summary>
        /// <param name="commandData">A reference to the commandData.</param>
        public ExtrusionRoofManager(ExternalCommandData commandData)
        {
            m_commandData = commandData;
            m_creationDoc = m_commandData.Application.ActiveUIDocument.Document.Create;
            m_creationApp = m_commandData.Application.Application.Create;        
        }

        /// <summary>
        /// Create a extrusion roof.
        /// </summary>
        /// <param name="profile">The profile combined of straight lines and arcs.</param>
        /// <param name="refPlane">The reference plane for the extrusion roof.</param>
        /// <param name="level">The reference level of the roof to be created.</param>
        /// <param name="roofType">The type of the newly created roof.</param>
        /// <param name="extrusionStart">The extrusion start point.</param>
        /// <param name="extrusionEnd">The extrusion end point.</param>
        /// <returns>Return a new created extrusion roof.</returns>
        public ExtrusionRoof CreateExtrusionRoof(CurveArray profile, ReferencePlane refPlane, Level level, RoofType roofType,
            double extrusionStart, double extrusionEnd)
        {
            ExtrusionRoof extrusionRoof = null;
            Transaction createRoofTransaction = new Transaction(m_commandData.Application.ActiveUIDocument.Document, "ExtrusionRoof");
            createRoofTransaction.Start();
            try
            {
                extrusionRoof = m_creationDoc.NewExtrusionRoof(profile, refPlane, level, roofType, extrusionStart, extrusionEnd);
                createRoofTransaction.Commit();
            }
            catch (System.Exception e)
            {
                createRoofTransaction.RollBack();
                throw e;
            }
            
            return extrusionRoof;
        }
    }
}