Revit二次开发——创建墙

创建墙测试

 [Autodesk.Revit.Attributes.Transaction(TransactionMode.Manual)]
    [Autodesk.Revit.Attributes.Regeneration(RegenerationOption.Manual)]

    public class AxWallCreate : IExternalCommand
    {
        Autodesk.Revit.ApplicationServices.Application app;
        Autodesk.Revit.DB.Document doc;
        List<AxWallLine> m_WallPolylines = null;
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIApplication uiApp = commandData.Application;
            UIDocument uiDoc = uiApp.ActiveUIDocument;
            app = uiApp.Application;
            doc = uiDoc.Document;
            Selection selection = uiDoc.Selection;
            OpenFileDialog dlg = new OpenFileDialog();
            dlg.Title = "打开墙线文件";
            dlg.Filter = "(*.shp)|*.shp";
            if (dlg.ShowDialog() == DialogResult.OK && dlg.FileName != String.Empty)
            {
                String wallFileName = dlg.FileName;
                MessageBox.Show(wallFileName);
                ReadWallLinesSHP(wallFileName);
                String info = "读取线的数目：" + m_WallPolylines.Count;

                MessageBox.Show(info, "信息");              
                CreateWall();
            }

            return Result.Succeeded;
        }

        //读取墙线文件
        private void ReadWallLinesSHP(string FILENAME)
        {
            IntPtr hShp;
            hShp = ShapeLib.SHPOpen(FILENAME, "rb+");
            m_WallPolylines = new List<AxWallLine>();
            // get shape info and verify shapes were created correctly
            double[] minB = new double[4];
            double[] maxB = new double[4];
            int nEntities = 0;
            ShapeLib.ShapeType shapeType = 0;
            ShapeLib.SHPGetInfo(hShp, ref nEntities, ref shapeType, minB, maxB);
            double m_MinX = minB[0];
            double m_MinY = minB[1];
            for (int i = 0; i < nEntities; i++)
            {
                int iShape = i;
                IntPtr pshpObj = ShapeLib.SHPReadObject(hShp, iShape);
                AxPolyline2d plline = new AxPolyline2d();
                ShapeLib.SHPObject shpObj = new ShapeLib.SHPObject();
                Marshal.PtrToStructure(pshpObj, shpObj);

                int parts = shpObj.nParts;
                if (parts > 0)
                {
                    int[] partStart = new int[parts];
                    Marshal.Copy(shpObj.paPartStart, partStart, 0, parts);
                    int[] partType = new int[parts];
                    Marshal.Copy(shpObj.paPartType, partType, 0, parts);

                    int number = shpObj.nVertices;
                    double[] m_padfX = new double[number];
                    Marshal.Copy(shpObj.padfX, m_padfX, 0, number);
                    double[] m_padfY = new double[number];
                    Marshal.Copy(shpObj.padfY, m_padfY, 0, number);
                    for (int iv = 0; iv < number; iv++)
                    {
                        double x = m_padfX[iv];
                        double y = m_padfY[iv];
                        x = x - minB[0];
                        y = y - minB[1];
                        Vector2d pt = new Vector2d(x * 1000, y * 1000);
                        plline.polyline.Add(pt);//
                    }
                    AxWallLine wall = new AxWallLine();
                    wall.WallId = 1000 + i;
                    wall.m_Polyline = plline;
                    wall.m_MaxZ = 3000;
                    wall.m_MinZ = 0;
                    wall.m_Thickness = 150;
                    m_WallPolylines.Add(wall);
                }
                ShapeLib.SHPDestroyObject(pshpObj);
            }
            ShapeLib.SHPClose(hShp);
        }

        public void CreateWall()
        {
            //List<Curve>;
            IList<Curve> curves = new List<Curve>();
            Line l1 = Line.CreateBound(XYZ.Zero, new XYZ(150, 0, 0));
            Line l2 = Line.CreateBound(XYZ.Zero, new XYZ(50, 0, 50));
            Line l3 = Line.CreateBound(new XYZ(50, 0, 50), new XYZ(100, 0, 50));
            Line l4 = Line.CreateBound(new XYZ(100, 0, 50), new XYZ(150, 0, 0));
            curves.Add(l1);
            curves.Add(l2);
            curves.Add(l3);
            curves.Add(l4);

            using (Transaction ts = new Transaction(doc,"AxCreateWall"))
            {
                ts.Start();
                Wall.Create(doc, curves, false);
                ts.Commit();
            }

            for (int i = 0; i < m_WallPolylines.Count; i++)
            {
                AxWallLine wall = m_WallPolylines[i];
                List<Vector2d> segments = wall.m_Polyline.polyline;
                for (int j = 0; j < segments.Count-1; j++)
                {
                    Vector2d segment0 = segments[j];
                    Vector2d segment1 = segments[j+1];
                    XYZ pt0 = new XYZ(segment0.X, segment0.Y, 0);
                    XYZ pt1 = new XYZ(segment1.X, segment1.Y, 0);
                    Line line = Line.CreateBound(pt0, pt1);

                    //Wall.Create(doc, line, true);
                }            
            }
        }
    }