revit二次开发API示例 曲形梁创建
759
2024/11/24
应用程序：CurvedBeam
Revit 平台：所有
Revit 版本：2011.0
首次发布时间：2008.0
编程语言：C#
技能水平：初级
类别：结构
类型：外部命令
应用程序：CurvedBeam
主题：曲形梁创建。
摘要：本样例演示了如何创建曲形梁，该样例可以创建三种类型的曲形梁：圆弧、椭圆和 NURBS 样条线。
相关类:
Autodesk.Revit.UI.IExternalCommand
Autodesk.Revit.DB.Creation.Document
Autodesk.Revit.DB.Symbols.FamilySymbol
Autodesk.Revit.DB.FamilyInstance
Autodesk.Revit.DB.Level
Autodesk.Revit.DB.Geometry.Arc
Autodesk.Revit.DB.Geometry.Ellipse
Autodesk.Revit.DB.Geometry.NurbSpline
Autodesk.Revit.DB.Geometry.XYZ
项目文件：
CurvedBeam.cs
这个文件包含了类 Command，它继承了 IExternalCommand 接口并实现了 Execute 方法；此外，它还实现了从 Revit 项目中获取所有楼层和结构构架（梁和支撑）类型的功能。此文件还包含 SymbolMap 和 LevelMap 两个类，用于保留所有梁和楼层类型。
CurvedBeamForm.cs
这个文件包含了一个 Form 类，由两个 ComboBox 控件和三个按钮组成。ComboBox 控件将显示项目中所有结构构架（梁和支撑）类型和楼层；按钮将分别创建圆弧、椭圆、NURBS 样条线梁。
功能：
本示例主要使用了 FamilySymbol、FamilyInstance、Arc、Ellipse 和 NurbSpline 等类，以获取 Revit 项目中所有结构构架类型和楼层，然后使用它们来创建新的梁。
- 使用 ElementClassFilter 来迭代 Revit 中的结构构架类型和楼层。
- 使用 Family.Symbols 属性来获取一个族所有符号。
- 使用 FamilySymbol.Category 属性来获取家族符号的类别。
- 分别使用 Creation.Document 类的 NewArc、NewEllipse 和 NewNurbSpline 方法来创建圆弧、椭圆和 NURBS 样条线。
- 使用 Creation.Document 类的 NewFamilyInstance 方法来创建曲形梁实例，通过指定新梁的曲线。
实施：
1. 打开 Revit，确保项目中有一些结构构架类型和楼层。
2. 运行命令，将会弹出 "曲形梁" 窗体，所有可用的结构构架类型和楼层将列在两个 ComboBox 控件中。
3. 选择即将创建梁的类型和楼层。
4. 点击 "圆弧" 按钮将创建一个圆弧梁，点击 "部分椭圆" 按钮将创建一个部分椭圆梁，点击 "样条线" 按钮将创建一个 NURBS 样条线梁。
注：
1. 圆弧、椭圆和 NURBS 样条线实例的位置是硬编码的。
2. 请在最新版本（晚于 2006 年 12 月 14 日）中运行示例。
完整的源代码请加入QQ群649037449，在群文件中下载RevitSDK.exe，解压后在文件夹中搜索本文中应用程序名称即可获得完整源码
CurvedBeam.cs
//
// (C) Copyright 2003-2019 by Autodesk, Inc.
//
// Permission to use, copy, modify, and distribute this software in
// object code form for any purpose and without fee is hereby granted,
// provided that the above copyright notice appears in all copies and
// that both that copyright notice and the limited warranty and
// restricted rights notice below appear in all supporting
// documentation.
//
// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
// UNINTERRUPTED OR ERROR FREE.
//
// Use, duplication, or disclosure by the U.S. Government is subject to
// restrictions set forth in FAR 52.227-19 (Commercial Computer
// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
// (Rights in Technical Data and Computer Software), as applicable.
//
using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
using System.Windows.Forms;
using Autodesk;
using Autodesk.Revit;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB.Structure;
namespace Revit.SDK.Samples.CurvedBeam.CS
{
/// <summary>
/// This class inherits from IExternalCommand interface, and implements the Execute method to create Arc, BSpline beams.
/// </summary>
[Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
[Autodesk.Revit.Attributes.Regeneration(Autodesk.Revit.Attributes.RegenerationOption.Manual)]
[Autodesk.Revit.Attributes.Journaling(Autodesk.Revit.Attributes.JournalingMode.UsingCommandData)]
public class Command : IExternalCommand
{
#region Class memeber variables
Autodesk.Revit.UI.UIApplication m_revit = null;
ArrayList m_beamMaps = new ArrayList(); // list of beams' type
ArrayList m_levels = new ArrayList(); // list of levels
#endregion
#region Command class properties
/// <summary>
/// list of all type of beams
/// </summary>
public ArrayList BeamMaps
{
get
{
return m_beamMaps;
}
}
/// <summary>
/// list of all levels
/// </summary>
public ArrayList LevelMaps
{
get
{
return m_levels;
}
}
#endregion
#region IExternalCommand interface implementation
///<summary>
/// Implement this method as an external command for Revit.
/// </summary>
/// <param name="commandData">An object that is passed to the external application
/// which contains data related to the command,
/// such as the application object and active view.</param>
/// <param name="message">A message that can be set by the external application
/// which will be displayed if a failure or cancellation is returned by
/// the external command.</param>
/// <param name="elements">A set of elements to which the external application
/// can add elements that are to be highlighted in case of failure or cancellation.</param>
/// <returns>Return the status of the external command.
/// A result of Succeeded means that the API external method functioned as expected.
/// Cancelled can be used to signify that the user cancelled the external operation
/// at some point. Failure should be returned if the application is unable to proceed with
/// the operation.</returns>
public Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData, ref string message, Autodesk.Revit.DB.ElementSet elements)
{
m_revit = commandData.Application;
Transaction tran = new Transaction(m_revit.ActiveUIDocument.Document, "CurvedBeam");
tran.Start();
// if initialize failed return Result.Failed
bool initializeOK = Initialize();
if (!initializeOK)
{
return Autodesk.Revit.UI.Result.Failed;
}
// pop up new beam form
CurvedBeamForm displayForm = new CurvedBeamForm(this);
displayForm.ShowDialog();
tran.Commit();
return Autodesk.Revit.UI.Result.Succeeded;
}
#endregion
/// <summary>
/// iterate all the symbols of levels and beams
/// </summary>
/// <returns>A value that signifies if the initialization was successful for true or failed for false</returns>
private bool Initialize()
{
try
{
ElementClassFilter levelFilter = new ElementClassFilter(typeof(Level));
ElementClassFilter famFilter = new ElementClassFilter(typeof(Family));
LogicalOrFilter orFilter = new LogicalOrFilter(levelFilter, famFilter);
FilteredElementCollector collector = new FilteredElementCollector(m_revit.ActiveUIDocument.Document);
FilteredElementIterator i = collector.WherePasses(orFilter).GetElementIterator();
i.Reset();
bool moreElement = i.MoveNext();
while (moreElement)
{
object o = i.Current;
// add level to list
Level level = o as Level;
if (null != level)
{
m_levels.Add(new LevelMap(level));
goto nextLoop;
}
// get
Family f = o as Family;
if (null == f)
{
goto nextLoop;
}
foreach (ElementId elementId in f.GetFamilySymbolIds())
{
object symbol = m_revit.ActiveUIDocument.Document.GetElement(elementId);
FamilySymbol familyType = symbol as FamilySymbol;
if (null == familyType)
{
goto nextLoop;
}
if (null == familyType.Category)
{
goto nextLoop;
}
// add symbols of beams and braces to lists
string categoryName = familyType.Category.Name;
if ("Structural Framing" == categoryName)
{
m_beamMaps.Add(new SymbolMap(familyType));
}
}
nextLoop:
moreElement = i.MoveNext();
}
}
catch (Exception ex)
{
throw new Exception(ex.ToString());
}
return true;
}
/// <summary>
/// create an horizontal arc instance with specified z coordinate value
/// </summary>
public Arc CreateArc(double z)
{
Autodesk.Revit.DB.XYZ center = new Autodesk.Revit.DB.XYZ(0, 0, z);
double radius = 20.0;
double startAngle = 0.0;
double endAngle = 5.0;
Autodesk.Revit.DB.XYZ xAxis = new Autodesk.Revit.DB.XYZ(1, 0, 0);
Autodesk.Revit.DB.XYZ yAxis = new Autodesk.Revit.DB.XYZ(0, 1, 0);
return Arc.Create(center, radius, startAngle, endAngle, xAxis, yAxis);
}
/// <summary>
/// create a horizontal partial ellipse instance with specified z coordinate value
/// </summary>
public Curve CreateEllipse(double z)
{
Autodesk.Revit.DB.XYZ center = new Autodesk.Revit.DB.XYZ(0, 0, z);
double radX = 30;
double radY = 50;
Autodesk.Revit.DB.XYZ xVec = new Autodesk.Revit.DB.XYZ(1, 0, 0);
Autodesk.Revit.DB.XYZ yVec = new Autodesk.Revit.DB.XYZ(0, 1, 0);
double param0 = 0.0;
double param1 = 3.1415;
Curve ellpise = Ellipse.CreateCurve(center, radX, radY, xVec, yVec, param0, param1);
m_revit.ActiveUIDocument.Document.Regenerate();
return ellpise;
}
/// <summary>
/// create a horizontal nurbspline instance with specified z coordinate value
/// </summary>
public Curve CreateNurbSpline(double z)
{
// create control points with same z value
List<XYZ> ctrPoints = new List<XYZ>();
Autodesk.Revit.DB.XYZ xyz1 = new Autodesk.Revit.DB.XYZ(-41.887503610431267, -9.0290629129782189, z);
Autodesk.Revit.DB.XYZ xyz2 = new Autodesk.Revit.DB.XYZ(-9.27600019217055, 0.32213521486563046, z);
Autodesk.Revit.DB.XYZ xyz3 = new Autodesk.Revit.DB.XYZ(9.27600019217055, 0.32213521486563046, z);
Autodesk.Revit.DB.XYZ xyz4 = new Autodesk.Revit.DB.XYZ(41.887503610431267, 9.0290629129782189, z);
ctrPoints.Add(xyz1); ctrPoints.Add(xyz2); ctrPoints.Add(xyz3);
ctrPoints.Add(xyz4);
IList<double> weights = new List<double>();
double w1 = 1, w2 = 1, w3 = 1, w4 = 1;
weights.Add(w1); weights.Add(w2); weights.Add(w3);
weights.Add(w4);
IList<double> knots = new List<double>();
double k0 = 0, k1 = 0, k2 = 0, k3 = 0, k4 = 34.425128, k5 = 34.425128, k6 = 34.425128, k7 = 34.425128;
knots.Add(k0); knots.Add(k1); knots.Add(k2); knots.Add(k3);
knots.Add(k4); knots.Add(k5); knots.Add(k6);
knots.Add(k7);
Curve detailNurbSpline = NurbSpline.CreateCurve(3, knots,ctrPoints, weights);
m_revit.ActiveUIDocument.Document.Regenerate();
return detailNurbSpline;
}
/// <summary>
/// create a curved beam
/// </summary>
/// <param name="fsBeam">beam type</param>
/// <param name="curve">Curve of this beam.</param>
/// <param name="level">beam's reference level</param>
/// <returns></returns>
public bool CreateCurvedBeam(FamilySymbol fsBeam, Curve curve, Level level)
{
FamilyInstance beam;
try
{
if (!fsBeam.IsActive)
fsBeam.Activate();
beam = m_revit.ActiveUIDocument.Document.Create.NewFamilyInstance(curve, fsBeam, level, StructuralType.Beam);
if (null == beam)
{
return false;
}
// get beam location curve
LocationCurve beamCurve = beam.Location as LocationCurve;
if (null == beamCurve)
{
return false;
}
}
catch (Exception ex)
{
TaskDialog.Show("Revit", ex.ToString());
return false;
}
// regenerate document
m_revit.ActiveUIDocument.Document.Regenerate();
return true;
}
}
/// <summary>
/// assistant class contains symbol and it's name
/// </summary>
public class SymbolMap
{
#region SymbolMap class member variables
string m_symbolName = "";
FamilySymbol m_symbol = null;
#endregion
/// <summary>
/// constructor without parameter is forbidden
/// </summary>
private SymbolMap()
{
// no operation
}
/// <summary>
/// constructor
/// </summary>
/// <param name="symbol">family symbol</param>
public SymbolMap(FamilySymbol symbol)
{
m_symbol = symbol;
string familyName = "";
if (null != symbol.Family)
{
familyName = symbol.Family.Name;
}
m_symbolName = familyName + " : " + symbol.Name;
}
/// <summary>
/// SymbolName property
/// </summary>
public string SymbolName
{
get
{
return m_symbolName;
}
}
/// <summary>
/// ElementType property
/// </summary>
public FamilySymbol ElementType
{
get
{
return m_symbol;
}
}
}
/// <summary>
/// assistant class contains level and it's name
/// </summary>
public class LevelMap
{
#region LevelMap class member variable
string m_levelName = "";
Level m_level = null;
#endregion
#region LevelMap Constructors
/// <summary>
/// constructor without parameter is forbidden
/// </summary>
private LevelMap()
{
// no operation
}
/// <summary>
/// constructor
/// </summary>
/// <param name="level">level</param>
public LevelMap(Level level)
{
m_level = level;
m_levelName = level.Name;
}
#endregion
#region LevelMap properties
/// <summary>
/// LevelName property
/// </summary>
public string LevelName
{
get
{
return m_levelName;
}
}
/// <summary>
/// Level property
/// </summary>
public Level Level
{
get
{
return m_level;
}
}
#endregion
}
}
CurvedBeamForm.cs
//
// (C) Copyright 2003-2019 by Autodesk, Inc.
//
// Permission to use, copy, modify, and distribute this software in
// object code form for any purpose and without fee is hereby granted,
// provided that the above copyright notice appears in all copies and
// that both that copyright notice and the limited warranty and
// restricted rights notice below appear in all supporting
// documentation.
//
// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
// UNINTERRUPTED OR ERROR FREE.
//
// Use, duplication, or disclosure by the U.S. Government is subject to
// restrictions set forth in FAR 52.227-19 (Commercial Computer
// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
// (Rights in Technical Data and Computer Software), as applicable.
//
namespace Revit.SDK.Samples.CurvedBeam.CS
{
/// <summary>
/// new beam form
/// </summary>
partial class CurvedBeamForm
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.BeamTypeCB = new System.Windows.Forms.ComboBox();
this.LevelCB = new System.Windows.Forms.ComboBox();
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.newArcButton = new System.Windows.Forms.Button();
this.newEllipseButton = new System.Windows.Forms.Button();
this.newNurbSplineButton = new System.Windows.Forms.Button();
this.label4 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// BeamTypeCB
//
this.BeamTypeCB.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.BeamTypeCB.FormattingEnabled = true;
this.BeamTypeCB.Location = new System.Drawing.Point(95, 6);
this.BeamTypeCB.Name = "BeamTypeCB";
this.BeamTypeCB.Size = new System.Drawing.Size(274, 21);
this.BeamTypeCB.TabIndex = 0;
//
// LevelCB
//
this.LevelCB.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.LevelCB.FormattingEnabled = true;
this.LevelCB.Location = new System.Drawing.Point(95, 43);
this.LevelCB.Name = "LevelCB";
this.LevelCB.Size = new System.Drawing.Size(274, 21);
this.LevelCB.TabIndex = 1;
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(12, 9);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(73, 13);
this.label1.TabIndex = 8;
this.label1.Text = "Type of Beam";
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(52, 46);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(33, 13);
this.label2.TabIndex = 9;
this.label2.Text = "Level";
//
// newArcButton
//
this.newArcButton.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
this.newArcButton.Image = global::Revit.SDK.Samples.CurvedBeam.CS.Properties.Resources.arc3;
this.newArcButton.ImageAlign = System.Drawing.ContentAlignment.TopCenter;
this.newArcButton.Location = new System.Drawing.Point(33, 83);
this.newArcButton.Name = "newArcButton";
this.newArcButton.Size = new System.Drawing.Size(54, 41);
this.newArcButton.TabIndex = 4;
this.newArcButton.Text = "&Arc";
this.newArcButton.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
this.newArcButton.UseVisualStyleBackColor = true;
this.newArcButton.Click += new System.EventHandler(this.newArcButton_Click);
//
// newEllipseButton
//
this.newEllipseButton.Image = global::Revit.SDK.Samples.CurvedBeam.CS.Properties.Resources.partialellipse;
this.newEllipseButton.ImageAlign = System.Drawing.ContentAlignment.TopCenter;
this.newEllipseButton.Location = new System.Drawing.Point(162, 83);
this.newEllipseButton.Name = "newEllipseButton";
this.newEllipseButton.Size = new System.Drawing.Size(54, 41);
this.newEllipseButton.TabIndex = 5;
this.newEllipseButton.Text = "Partial &Ellipse";
this.newEllipseButton.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
this.newEllipseButton.UseVisualStyleBackColor = true;
this.newEllipseButton.Click += new System.EventHandler(this.newEllipseButton_Click);
//
// newNurbSplineButton
//
this.newNurbSplineButton.Image = global::Revit.SDK.Samples.CurvedBeam.CS.Properties.Resources.spline;
this.newNurbSplineButton.ImageAlign = System.Drawing.ContentAlignment.TopCenter;
this.newNurbSplineButton.Location = new System.Drawing.Point(291, 83);
this.newNurbSplineButton.Name = "newNurbSplineButton";
this.newNurbSplineButton.Size = new System.Drawing.Size(54, 41);
this.newNurbSplineButton.TabIndex = 6;
this.newNurbSplineButton.Text = "&Spline";
this.newNurbSplineButton.TextAlign = System.Drawing.ContentAlignment.BottomCenter;
this.newNurbSplineButton.UseVisualStyleBackColor = true;
this.newNurbSplineButton.Click += new System.EventHandler(this.newNurbSplineButton_Click);
//
// label4
//
this.label4.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.label4.Location = new System.Drawing.Point(14, 73);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(358, 2);
this.label4.TabIndex = 12;
//
// CurvedBeamForm
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(380, 132);
this.Controls.Add(this.label4);
this.Controls.Add(this.newEllipseButton);
this.Controls.Add(this.newNurbSplineButton);
this.Controls.Add(this.newArcButton);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Controls.Add(this.LevelCB);
this.Controls.Add(this.BeamTypeCB);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "CurvedBeamForm";
this.ShowIcon = false;
this.ShowInTaskbar = false;
this.Text = "Curved Beam";
this.Load += new System.EventHandler(this.CreateCurvedBeamForm_Load);
this.ResumeLayout(false);
this.PerformLayout();
}
/// <summary>
/// method called when form is loaded
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void CreateCurvedBeamForm_Load(object sender, System.EventArgs e)
{
//this.TextBoxRefresh();
this.BeamTypeCB.DataSource = m_dataBuffer.BeamMaps;
this.BeamTypeCB.DisplayMember = "SymbolName";
this.BeamTypeCB.ValueMember = "ElementType";
this.LevelCB.DataSource = m_dataBuffer.LevelMaps;
this.LevelCB.DisplayMember = "LevelName";
this.LevelCB.ValueMember = "Level";
}
private Command m_dataBuffer;
private System.Windows.Forms.ComboBox BeamTypeCB;
private System.Windows.Forms.ComboBox LevelCB;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Button newArcButton;
private System.Windows.Forms.Button newEllipseButton;
private System.Windows.Forms.Button newNurbSplineButton;
private System.Windows.Forms.Label label4;
}
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