在你的对话框上查看Revit模型的各个视图 - EaBIM

REVIT的视图能不能用于对话框上图形的临时显示？API编程如何实现？我没有看到相关教程。

在Revi 2013 中提供了一个PreviewControl WPF控件，用于在你的自己的对话框上显示一个Rvt/rfa/rft文件中的视图。这个Rvt/rfa/rft文件无需在当前的Revit里面打开，可以是一个在硬盘或局域网上的一个文件。但是这个对话框必须是在Revit里面的，不能使脱离Revit软件环境。

这个控件是一个WPF控件。还可以选择让这个控件显示Rvt中的那个视图。

[csharp] view plaincopy
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using RApplication = Autodesk.Revit.ApplicationServices.Application;
namespace AddInIntegrationSample
{
[Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
public class PreviewCommand : IExternalCommand
{
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
_dbdocument = commandData.Application.ActiveUIDocument.Document;
TransactionGroup outerGroup = new TransactionGroup(_dbdocument, "preview control");
outerGroup.Start();
try
{
PreviewModel form = new PreviewModel(commandData.Application.Application, new ElementId(-1));
form.ShowDialog();
}
catch (Exception e)
{
throw e;
}
finally
{
outerGroup.RollBack();
}
return Result.Succeeded;
}
private Document _dbdocument = null;
}
}

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[csharp] view plaincopy
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;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.Collections;
using RView = Autodesk.Revit.DB.View;
using RApplication = Autodesk.Revit.ApplicationServices.Application;
namespace AddInIntegrationSample
{
public partial class PreviewModel : System.Windows.Forms.Form
{
public PreviewModel(RApplication application, ElementId viewId)
{
InitializeComponent();
_application = application;
_uiApplication = new UIApplication(application);
_dbDocument = _uiApplication.ActiveUIDocument.Document;
updateDocumentList(_dbDocument);
updateViewsList(_uiApplication.ActiveUIDocument.ActiveView.Id);
}
private void updateViewsList(ElementId viewId)
{
// fill the combobox with printable views <name + id>
FilteredElementCollector collecotr = new FilteredElementCollector(_dbDocument);
collecotr.OfClass(typeof(Autodesk.Revit.DB.View));
IEnumerable<Autodesk.Revit.DB.View> secs = from Element f in collecotr where (f as Autodesk.Revit.DB.View).CanBePrinted == true select f as Autodesk.Revit.DB.View;
_cbViews.Items.Clear();
DBViewItem activeItem = null;
foreach (Autodesk.Revit.DB.View dbView in secs)
{
if (viewId == null || viewId.IntegerValue < 0)
{
activeItem = new DBViewItem(dbView, _dbDocument);
viewId = dbView.Id;
}
if (dbView.Id == viewId)
{
activeItem = new DBViewItem(dbView, _dbDocument);
_cbViews.Items.Add(activeItem);
}
else
_cbViews.Items.Add(new DBViewItem(dbView, _dbDocument));
}
_cbViews.SelectedItem = activeItem;
}
private void updateDocumentList(Document selectedDocument)
{
// fill the documents to the comboxbox _cbDocuments.
DBDocumentItem activeItem = null;
_cbDocuments.Items.Clear();
DocumentSetIterator docIter = _application.Documents.ForwardIterator();
docIter.Reset();
while (docIter.MoveNext())
{
Document dbDoc = docIter.Current as Document;
String documentName = null;
DBDocumentItem item = null;
if (dbDoc != null)
{
if (dbDoc.IsFamilyDocument)
{
item = new DBDocumentItem(dbDoc.PathName, dbDoc);
}
else
{
String projName = dbDoc.ProjectInformation.Name;
if (String.IsNullOrEmpty(projName) || projName.ToLower().CompareTo("project name") == 0)
{
if (String.IsNullOrEmpty(dbDoc.PathName))
documentName = projName;
else
documentName = new System.IO.FileInfo(dbDoc.PathName).Name;
}
else
documentName = projName;
item = new DBDocumentItem(documentName, dbDoc);
}
if (dbDoc.Equals(selectedDocument))
{
_dbDocument = selectedDocument;
activeItem = item;
}
_cbDocuments.Items.Add(item);
}
}
_cbDocuments.Items.Add(new DBDocumentItem());
_cbDocuments.SelectedItem = activeItem;
}
private void cbViews_SelIdxChanged(object sender, EventArgs e)
{
System.Windows.Forms.ComboBox cb = sender as System.Windows.Forms.ComboBox;
if (cb == null)
return;
DBViewItem dbItem = cb.SelectedItem as DBViewItem;
if (dbItem == null)
return;
PreviewControl vc = _elementHostWPF.Child as PreviewControl;
if (vc != null)
vc.Dispose();
_elementHostWPF.Child = new PreviewControl(_dbDocument, dbItem.Id);
_currentDBViewId = dbItem.Id;
}
private ElementId _currentDBViewId = null;
private Document _dbDocument = null;
private RApplication _application = null;
private UIApplication _uiApplication = null;
private void cbDocs_SelIdxChanged(object sender, EventArgs e)
{
DBDocumentItem documentItem = _cbDocuments.SelectedItem as DBDocumentItem;
if (documentItem.Document == _dbDocument)
return;
if (documentItem.IsNull)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.DefaultExt = "rvt";
ofd.Filter = "Revit project files (*.rvt)|*.rvt|Revit family files (*.rfa)|*.rfa|Revit family template files (*.rft)|*.rft";
if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
try
{
_dbDocument = _application.OpenDocumentFile(ofd.FileName);
}
catch (System.Exception)
{
}
if (_dbDocument != null)
{
updateDocumentList(_dbDocument);
updateViewsList(null);
}
}
else
{
// the combobox should show the current document item.
String documentName;
String projName = _dbDocument.ProjectInformation.Name;
if (String.IsNullOrEmpty(projName) || projName.ToLower().CompareTo("project name") == 0)
{
if (String.IsNullOrEmpty(_dbDocument.PathName))
documentName = projName;
else
documentName = new System.IO.FileInfo(_dbDocument.PathName).Name;
}
else
documentName = projName;
foreach (DBDocumentItem dbItem in _cbDocuments.Items)
{
if (dbItem.Name.ToLower().CompareTo(documentName.ToLower()) == 0)
{
_cbDocuments.SelectedItem = dbItem;
break;
}
}
}
}
else
{
_dbDocument = documentItem.Document;
updateViewsList(null);
}
}
}
public class DBViewItem
{
public DBViewItem(RView dbView, Document dbDoc)
{
ElementType viewType = dbDoc.GetElement(dbView.GetTypeId()) as ElementType;
Name = viewType.Name + " " + dbView.Name;
Id = dbView.Id;
UniqueId = dbView.UniqueId;
}
public override String ToString()
{
return Name;
}
public String Name { get; set; }
public ElementId Id { get; set; }
public String UniqueId { get; set; }
}
public class DBDocumentItem
{
public DBDocumentItem(String name, Document doc)
{
Name = name;
Document = doc;
IsNull = false;
}
public DBDocumentItem()
{
IsNull = true;
}
public override string ToString()
{
if (IsNull)
return "<Open Document...>";
return Name;
}
public bool IsNull { get; set; }
public String Name { get; set; }
public Document Document { get; set; }
}
}<span style="background-color: inherit; color: black; font-family: Consolas, 'Courier New', Courier, mono, serif; line-height: 18px; font-size: 9px; ">m.Collections.Generic; </span>

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最关键的是这句话：将文档以及视图ID传给控件。 _elementHostWPF.Child = new PreviewControl(_dbDocument, dbItem.Id);

这样你就可以浏览任意的族文件，rvt文件。
作者：叶雄进文章来源：http://blog.csdn.net/joexiongjin/article/category/782739