Revit二次开发之“预览”

这里演示已经加载的族的预览，通过FamilySymbol.GetPreviewImage()

[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
// [Journaling(JournalingMode.NoCommandData)]
public   class  GetPreview : IExternalCommand
{
     public  Result Execute(ExternalCommandData revit,  ref   string  message, ElementSet elements)
    {
        UIDocument uidoc  =  revit.Application.ActiveUIDocument;
         // 得到选择的对象
        Selection selection  =  uidoc.Selection;
        ElementSet collection  =  selection.Elements;

        Reference refelem  =  selection.PickObject(ObjectType.Element,  " 选择 " );

        FamilyInstance fi  =  uidoc.Document.GetElement(refelem)  as  FamilyInstance;
        FamilySymbol fs  =  fi.Symbol;

         // MessageBox.Show(fs.Name);

         // 加载族
         // uidoc.Document.LoadFamily(@"D:\revit\Revit文件\万能窗.rfa");
         // 遍历找到YTC3015
        FilteredElementCollector collector  =   new  FilteredElementCollector(uidoc.Document);
        ICollection < Element >  coll  =  collector.OfClass( typeof (Family)).ToElements();
         string  strFamily  =   "" ;
         foreach  (Element e  in  coll)
        {
            Family ffi  =  e  as  Family;
            strFamily  +=  ffi.Name;

            FamilySymbolSetIterator symbolItor  =  ffi.Symbols.ForwardIterator();
             while  (symbolItor.MoveNext())
            {
                FamilySymbol fSymbol  =  symbolItor.Current  as  FamilySymbol;
                 if  ( null   !=  fSymbol)
                {
                     if  (fSymbol.Name  ==   " YTC3015 " )
                        MessageBox.Show(fSymbol.Name  +   " hi " );
                }
            }

        }

        MessageBox.Show(strFamily);

         // Form1 f1 = new Form1(fs.GetPreviewImage(new System.Drawing.Size(200, 200)));
         // f1.ShowDialog();

         return  Result.Succeeded;
    }
}

窗体代码：

using  System;
using  System.Collections.Generic;
using  System.ComponentModel;
using  System.Data;
using  System.Drawing;
using  System.Linq;
using  System.Text;
using  System.Windows.Forms;

namespace  RevitCodes
{
     public   partial   class  Form1 : Form
    {
        System.Drawing.Bitmap bMap  =   null ;
         public  Form1()
        {
            InitializeComponent();
        }

         public  Form1(System.Drawing.Bitmap bitmap)
        {
            bMap  =  bitmap;
            InitializeComponent();
        }

         private   void  Form1_Load( object  sender, EventArgs e)
        {
             this .pictureBox1.Image  =  bMap;
        }
    }
}

from: http://revit.5d6d.com/thread-900-1-4.html