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