revit api 加载族文件+放置族实例 创建门图元

string doorTypeName = "0762 x 2032 mm";
FamilySymbol doorType = null;// 在文档中找到名字为"0762 x 2032 mm"的门类型
ElementFilter doorCategoryFilter = new ElementCategoryFilter(BuiltInCategory.OST_Doors);
ElementFilter familySymbolFilter = new ElementClassFilter(typeof(FamilySymbol));
LogicalAndFilter andFilter = new LogicalAndFilter(doorCategoryFilter, familySymbolFilter);
FilteredElementCollector doorSymbols = new FilteredElementCollector(RevitDoc);
doorSymbols = doorSymbols.WherePasses(andFilter);
bool symbolFound = false;
foreach (FamilySymbol element in doorSymbols)
{if (element.Name == doorTypeName){symbolFound = true;doorType = element;break;}
}// 如果没有找到，就加载一个族文件
if (!symbolFound)
{string file = @"C:\ProgramData\Autodesk\RVT 2014\Libraries\Chinese_INTL\门\M_单-嵌板 4.rfa";Family family;bool loadSuccess = RevitDoc.LoadFamily(file, out family);if (loadSuccess){foreach (ElementId doorTypeId in family.GetValidTypes()){doorType = RevitDoc.GetElement(doorTypeId) as FamilySymbol;if (doorType != null){if (doorType.Name == doorTypeName){break;}}}}else{Autodesk.Revit.UI.TaskDialog.Show("Load family failed", "Could not load family file '" + file + "'");}
}// 使用族类型创建门
if (doorType != null)
{// 首先找到线形的墙ElementFilter wallFilter = new ElementClassFilter(typeof(Wall));FilteredElementCollector filteredElements = new FilteredElementCollector(RevitDoc);filteredElements = filteredElements.WherePasses(wallFilter);Wall wall = null;Line line = null;foreach (Wall element in filteredElements){LocationCurve locationCurve = element.Location as LocationCurve;if (locationCurve != null){line = locationCurve.Curve as Line;if (line != null){wall = element;break;}}}// 在墙的中心位置创建一个门if (wall != null){XYZ midPoint = (line.get_EndPoint(0) + line.get_EndPoint(1)) / 2;Level wallLevel = RevitDoc.GetElement(wall.LevelId) as Level;//创建门：传入标高参数，作为门的默认标高FamilyInstance door = RevitDoc.Create.NewFamilyInstance(midPoint, doorType, wall, wallLevel, Autodesk.Revit.DB.Structure.StructuralType.NonStructural);Autodesk.Revit.UI.TaskDialog.Show("Succeed", door.Id.ToString());Trace.WriteLine("Door created: " + door.Id.ToString());}else{Autodesk.Revit.UI.TaskDialog.Show("元素不存在", "没有找到符合条件的墙");}
}
else
{Autodesk.Revit.UI.TaskDialog.Show("族类型不存在", "没有找到族类型'" + doorTypeName + "'");
}