Revit二次开发之“加载A项目中的族到B项目中”

start

using System.Text;

using System.Windows.Forms;

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

using Autodesk.Revit.DB.Mechanical;
using Autodesk.Revit.UI.Selection;
using RevitApp = Autodesk.Revit.ApplicationServices;

namespace RevitCodes
{
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
//[Journaling(JournalingMode.NoCommandData)]
public class LoadFamilyFromOtherFile : IExternalCommand
{
    public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
    {
        UIDocument uiDoc = commandData.Application.ActiveUIDocument;
        Autodesk.Revit.ApplicationServices.Application app = commandData.Application.Application;
        //加载一个Revit文件
        //Document DOC = commandData.Application.Application.OpenDocumentFile("D:\\Backup\\桌面\\项目1.rvt");

        //遍历已经打开的Revit文件
        Document myFamilyDoc = null;
        foreach (Document doc in commandData.Application.Application.Documents)
        {
            if (doc.PathName == "D:\\Backup\\桌面\\加载万能窗.rvt")
            {
                //遍历找到族
                FilteredElementCollector collector = new FilteredElementCollector(doc);
                if (collector != null)
                    collector.OfCategory(BuiltInCategory.OST_Windows);
                IList<Element> list = collector.ToElements();

                foreach (Element e in list)
                {
                    FamilySymbol fs = e as FamilySymbol;
                    if (fs.Family.Name == "万能窗")
                    {
                        myFamilyDoc = doc.EditFamily(fs.Family);
                        break;
                    }
                }
            }
        }
        //加载到当前项目中
        if (myFamilyDoc != null)
            uiDoc.Document.LoadFamily(myFamilyDoc);//只能是族文件才可以加载。即.rfa

        return Result.Succeeded;
    }
}

一个项目A中有族myFamiy，我想加载到另一个打开的项目B中，通过手工的方式可以实现。在A中把族另存为myFamily.rfa 文件，然后在B中加载族即可。

如何通过编程在一个命令中实现？

这个是可以用编程方式来实现。

下面是主要步骤。

方法1. 模仿手工步骤

1. 在项目A中，通过对象访问函数找到myFamily族

2. Document myFamilyDoc = A.EditFamily(myFamily);

3. 保存myFamilyDoc, myFamilyDoc.SaveAs(rfaFileName),

4. B中加载该文件, B.LoadFamily(rfaFileName).

方法2. 直接加载到B中,简单高效

1. 在项目A中，通过对象访问函数找到myFamily族

2. Document myFamilyDoc = A.EditFamily(myFamily);

3. B中加载该文件, B.LoadFamily(myFamilyDoc)，或用另一个重载函数

可以通过Application.Documents 访问当前REvit中打开的多个文档。
下面是方法2的例子代码：

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;

using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.ApplicationServices;
using Autodesk.Revit.Attributes;

[TransactionAttribute(Autodesk.Revit.Attributes.TransactionMode.Manual)]
public class RevitCommand : IExternalCommand
{
    public Result Execute(ExternalCommandData commandData, ref string messages, ElementSet elements)
    {


        UIDocument uiDoc = commandData.Application.ActiveUIDocument;
        Autodesk.Revit.ApplicationServices.Application app = commandData.Application.Application;

        Transaction trans = new Transaction(uiDoc.Document);
        trans.Start("loadfamily");


        Document myFamilyDoc = null;
        foreach (Document doc in commandData.Application.Application.Documents)
        {
            if (doc.PathName.ToLower() == @"c:\yejo\revit\adn\userproject\1269157\a.rvt")
            {

                FilteredElementCollector collector = new FilteredElementCollector(doc);
                if (collector != null)
                    collector.OfClass(typeof(Family));
                IList<Element> list = collector.ToElements();

                foreach (Element f in list)
                {
                    Family family = f as Family;
                    if (family.Name == "M_Window-Square Opening")
                    {

                        myFamilyDoc = doc.EditFamily(family);
                        break;
                    }
                }
            }
        }
        //加载到当前项目中
        if (myFamilyDoc != null)
            myFamilyDoc.LoadFamily(uiDoc.Document);

        trans.Commit();

        return Result.Succeeded;

    }
}

原来是LoadFamily();用颠倒了。