RevitAPI进阶之独立进程内读取、写入Revit文件.
如何不开启Revit读取，写入Revit文件呢？ 最优方案当前是利用Teigha BIM进行读写，但是无奈于这是第三方框架，要收费。那么欧特克有没有提供给我们合适的手段呢，答案是肯定的，其实欧特克内部做BIM交换时就用了此方法。
public class Program
{
static readonly string WorkPath = Path.GetDirectoryName(typeof(Program).Assembly.Location);
static Program()
{
RevitCoreContext.Instance.Run();
}
///
/// Revit 内核必须加 STAThread 标签
///
///
[STAThread]
static void Main(string[] args)
{
var app = RevitCoreContext.Instance.Application;
// Todo ...
var projectrTemplate = app.DefaultProjectTemplate;
if (!File.Exists(projectrTemplate))
{
throw new FileNotFoundException("默认项目路径不存在 , 请指定 !");
}
var document = app.NewProjectDocument(projectrTemplate);
if (document == null)
{
throw new InvalidOperationException();
}
// create wall demo ...
var p1 = XYZ.Zero;
var p2 = p1 + XYZ.BasisX * 10;
var p3 = p2 + XYZ.BasisY * 10;
var p4 = p1 + XYZ.BasisY * 10;
var points = new XYZ[] { p1, p2, p3, p4 };
document.Invoke(m =>
{
var level0 = document.QueryByType().OfType().FirstOrDefault(x => Math.Abs(x.Elevation - 0.0) <= 1e-7);
if (level0 == null)
{
level0 = Level.Create(document, 0);
document.Regenerate();
}
for (int i = 0; i < points.Length; i++)
{
var a = points[i];
var b = i == points.Length - 1 ? points[0] : points[i + 1];
Wall.Create(document, Line.CreateBound(a, b), level0.Id, false);
}
});
document.SaveAs(Path.Combine(WorkPath, "demowall.rvt"));
RevitCoreContext.Instance.Stop();
}
}
public class RevitCoreContext
{
// 此路径为动态反射搜索路径 、 此路径可为任意路径（只要路径下有RevitNET 所需依赖项即可，完整依赖项可在 Naviswork 2016 下面找到）
static readonly string[] Searchs = RevitProductUtility.GetAllInstalledRevitProducts().Select(x => x.InstallLocation).ToArray();
static readonly object lockobj = new object();
static RevitCoreContext _instance;
private Product _product;
public Application Application { get => _product.Application; }
public static RevitCoreContext Instance
{
get
{
if (_instance == null)
{
lock (lockobj)
{
if (_instance == null)
{
_instance = new RevitCoreContext();
}
}
}
return _instance;
}
}
static RevitCoreContext()
{
AddEnvironmentPaths(Searchs);
AppDomain.CurrentDomain.AssemblyResolve += OnAssemblyResolve;
}
public void Run()
{
_product = Product.GetInstalledProduct();
var clientId = new ClientApplicationId(Guid.NewGuid(), "DotNet", "BIMAPI");
// I am authorized by Autodesk to use this UI-less functionality. 必须是此字符串。 Autodesk 规定的.
_product.Init(clientId, "I am authorized by Autodesk to use this UI-less functionality.");
}
public void Stop()
{
_product?.Exit();
}
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);
}
private static Assembly OnAssemblyResolve(object sender, ResolveEventArgs args)
{
var assemblyName = new AssemblyName(args.Name);
foreach (var item in Searchs)
{
var file = string.Format("{0}.dll", System.IO.Path.Combine(item, assemblyName.Name));
if (File.Exists(file))
{
return Assembly.LoadFile(file);
}
}
return args.RequestingAssembly;
}
}
public static class DocumentExtension
{
public static void Invoke(this Document doc, Action action, string name = "default")
{
using (var tr = new Transaction(doc, name))
{
tr.Start();
action(tr);
var status = tr.GetStatus();
switch (status)
{
case TransactionStatus.Started:
tr.Commit();
return;
case TransactionStatus.Committed:
case TransactionStatus.RolledBack:
return;
case TransactionStatus.Error:
tr.RollBack();
return;
default:
return;
}
}
}
public static TResult Invoke(this Document doc, Func func, string name = "default")
{
using (var tr = new Transaction(doc, name))
{
tr.Start();
var result = func(tr);
var status = tr.GetStatus();
switch (status)
{
case TransactionStatus.Started:
tr.Commit();
return result;
case TransactionStatus.Committed:
case TransactionStatus.RolledBack:
return result;
case TransactionStatus.Error:
tr.RollBack();
return result;
default:
return result;
}
}
}
public static void InvokeSub(this Document doc, Action action)
{
using (var tr = new SubTransaction(doc))
{
tr.Start();
action(tr);
var status = tr.GetStatus();
switch (status)
{
case TransactionStatus.Started:
tr.Commit();
return;
case TransactionStatus.Committed:
case TransactionStatus.RolledBack:
break;
case TransactionStatus.Error:
tr.RollBack();
return;
default:
return;
}
}
}
public static TResult InvokeSub(this Document doc, Func func)
{
using (var tr = new SubTransaction(doc))
{
tr.Start();
var result = func(tr);
var status = tr.GetStatus();
switch (status)
{
case TransactionStatus.Started:
tr.Commit();
return result;
case TransactionStatus.Committed:
case TransactionStatus.RolledBack:
return result;
case TransactionStatus.Error:
tr.RollBack();
return result;
default:
return result;
}
}
}
public static void InvokeGroup(this Document doc, Action action, string name = "default")
{
using (var tr = new TransactionGroup(doc, name))
{
tr.Start();
action(tr);
var status = tr.GetStatus();
switch (status)
{
case TransactionStatus.Started:
tr.Commit();
return;
case TransactionStatus.Committed:
case TransactionStatus.RolledBack:
break;
case TransactionStatus.Error:
tr.RollBack();
return;
default:
return;
}
}
}
public static TResult InvokeGroup(this Document doc, Func func, string name = "default")
{
using (var tr = new TransactionGroup(doc, name))
{
tr.Start();
var result = func(tr);
var status = tr.GetStatus();
switch (status)
{
case TransactionStatus.Started:
tr.Commit();
return result;
case TransactionStatus.Committed:
case TransactionStatus.RolledBack:
return result;
case TransactionStatus.Error:
tr.RollBack();
return result;
default:
return result;
}
}
}
public static FilteredElementCollector QueryByType(this Document doc) where T : Element
{
return new FilteredElementCollector(doc).OfClass(typeof(T));
}
}
Github : https://github.com/HeZhongHao/DotNet.Revit/tree/master/DotNet.Revit/DotNet.Revit.NET