xBIM 多个IFC文件合并

     目录

• xBIM 应用与学习 (一）

• xBIM 应用与学习 (二）

• xBIM 基本的模型操作

• xBIM 日志操作

• XBIM 3D 墙壁案例

• xBIM 格式之间转换

• xBIM 使用Linq 来优化查询

• xBIM IFC 输出 Excel 报表

• xBIM IFC 层次结构

• xBIM 多个IFC文件合并

• xBIM 插入复制功能

• XBIM 基于 WexBIM 文件在 WebGL 浏览和加载

    多个模型联合：统一访问数据，就好像是一个单一的模型，IFC 联合可以存储为IFC文件（在IfcStore中）

using System;
using Xbim.Common.Step21;
using Xbim.Ifc;
using Xbim.Ifc4.Interfaces;

namespace BasicExamples
{
    public class FederationExample
    {
        public void CreateFederation()
        {
            var editor = new XbimEditorCredentials
            {
                ApplicationDevelopersName = "You",
                ApplicationFullName = "Your app",
                ApplicationIdentifier = "Your app ID",
                ApplicationVersion = "4.0",
                //your user
                EditorsFamilyName = "Santini Aichel",
                EditorsGivenName = "Johann Blasius",
                EditorsOrganisationName = "Independent Architecture"
            };

            using (var federation = IfcStore.Create(editor, IfcSchemaVersion.Ifc4, XbimStoreType.InMemoryModel))
            { 
                federation.AddModelReference("SampleHouse.ifc", "Bob The Builder", "Original Constructor"); //IFC4 文件
                federation.AddModelReference("SampleHouseExtension.ifc", "Tyna", "Extensions Builder"); //IFC2x3  文件

                Console.WriteLine($"Model is federation: {federation.IsFederation}");
                Console.WriteLine($"Number of overall entities: {federation.FederatedInstances.Count}");
                Console.WriteLine($"Number of walls: {federation.FederatedInstances.CountOf<IIfcWall>()}");
                foreach (var refModel in federation.ReferencedModels)
                {
                    Console.WriteLine();
                    Console.WriteLine($"    Referenced model: {refModel.Name}");
                    Console.WriteLine($"    Referenced model organization: {refModel.OwningOrganisation}");
                    Console.WriteLine($"    Number of walls: {refModel.Model.Instances.CountOf<IIfcWall>()}");
                }
                //保存IFC文件
                federation.SaveAs("federation.ifc");
            }
        }
    }
}

控制台输出

Model is federation: True
Number of overall entities: 50303
Number of walls: 8

    Referenced model: SampleHouse.ifc
    Referenced model organization: Bob The Builder
    Number of walls: 5

    Referenced model: SampleHouseExtension.ifc
    Referenced model organization: Tyna
    Number of walls: 3

保存为IFC文件的联合设置如下所示。这个惯例是xBIM 发明的。所以不能与其他的工具操作。

ISO-10303-21;
HEADER;
FILE_DESCRIPTION ((''), '2;1');
FILE_NAME ('', '2016-10-27T13:14:43', (''), (''), 'Xbim File Processor version 3.2.0.0', 'Xbim version 3.2.0.0', '');
FILE_SCHEMA (('IFC4'));
ENDSEC;
DATA;
#1=IFCACTORROLE(.USERDEFINED.,'Original Constructor',$);
#2=IFCORGANIZATION($,'Bob The Builder',$,(#1),$);
#3=IFCDOCUMENTINFORMATION('1','SampleHouse.ifc',$,$,$,'XbimReferencedModel',$,$,#2,$,$,$,$,$,$,$,$);
#4=IFCACTORROLE(.USERDEFINED.,'Extensions Builder',$);
#5=IFCORGANIZATION($,'Tyna',$,(#4),$);
#6=IFCDOCUMENTINFORMATION('2','SampleHouseExtension.ifc',$,$,$,'XbimReferencedModel',$,$,#5,$,$,$,$,$,$,$,$);
ENDSEC;
END-ISO-10303-21;