【Revit二次开发】创建rvt文件，但不打开Revit

介绍

需要安装Revit，但不用打开Revit加载插件，而是运行一个控制台应用，就可以创建一个rvt文件（更多读写功能都可自行添加）。

本文内容主要参考：博客1，但对内容进行了简化，只保留了最核心的内容。

本文以Revit2019为例做了测试，有博客2说Revit2022不支持该功能。

示例

1. 创建.net framework4.7.2的控制台应用
2. 在【引用】中引入Revit2019安装目录中三个dll：RevitNET.dll，RevitAddInUtility.dll和RevitAPI.dll
3. 创建一个工具类RevitContext用来配置Revit API环境。
   下文代码中的Revit路径写死了，可自行修改或增加配置文件。

using Autodesk.Revit;
using Autodesk.Revit.ApplicationServices;
using Autodesk.Revit.DB;
using System;
using System.Configuration;
using System.Linq;
using System.Reflection;namespace TestRvt
{public class RevitContext{public static RevitContext Instance { get; } = new RevitContext();private static Product _product;public static Application App => _product.Application;static RevitContext(){var revitDir = @"C:\Program Files\Autodesk\Revit 2019";//revitDir = LoadConfig();//可以自行读取配置文件，读取自己的Revit安装路径//从config中读取revit的路径AddEnvironmentPaths(revitDir);} private static void AddEnvironmentPaths(params string[] paths){var path = new[] { Environment.GetEnvironmentVariable("PATH") ?? string.Empty };var newPath = string.Join(System.IO.Path.PathSeparator.ToString(), path.Concat(paths));Environment.SetEnvironmentVariable("PATH", newPath);}public static void Init(){_product = Product.GetInstalledProduct();var clientId = new ClientApplicationId(Guid.NewGuid(), "AppName", "RevitAPI");_product.Init(clientId, "I am authorized by Autodesk to use this UI-less functionality.");}public static void Exit(){_product?.Exit();}}
}

4. 写入rvt的代码

using Autodesk.Revit.DB;
using System;
using System.IO;namespace TestRvt
{public class Program{static Program(){        RevitContext.Init();//尝试合并到RevitContext中，但未成功，会报错}[STAThread]static void Main(string[] args){ var app = RevitContext.App;  var projectrTemplate = app.DefaultProjectTemplate;var document = app.NewProjectDocument(projectrTemplate);//清空所有楼层平面视图var elements = new FilteredElementCollector(document);var levels = elements.OfClass(typeof(Level)).Cast<Level>();using (var tran = new Transaction(document)){tran.Start("test");document.Delete(levels.Select(x => x.Id).ToList());tran.Commit();}//创建一个平面视图Level level = null;using (var tran = new Transaction(document)){tran.Start("创建楼层标高");level = Level.Create(document, 0);level.Name = "MyLevel0";var classFilter = new ElementClassFilter(typeof(ViewFamilyType));var filterElements = new FilteredElementCollector(document);var floorViewFamily = filterElements.WherePasses(classFilter).Cast<ViewFamilyType>().First(x => x.ViewFamily == ViewFamily.FloorPlan);ViewPlan view = ViewPlan.Create(document, floorViewFamily.Id, level.Id);tran.Commit();}//创建墙var p1 = new XYZ(0,0,0);var p2 = new XYZ(0,10,0);var p3 = new XYZ(5,10,0);using (var tran = new Transaction(document)){tran.Start("创建墙");Wall.Create(document, Line.CreateBound(p1, p2), level.Id, false);Wall.Create(document, Line.CreateBound(p2, p3), level.Id, false);tran.Commit();}document.SaveAs("./r.rvt");RevitContext.Exit();Console.WriteLine("Over");Console.ReadLine();                        }}
}

效果图：