using System;
using System.Linq;
using Xbim.Ifc;
using Xbim.Ifc4.Interfaces;namespace BasicExamples
{class SpatialStructureExample{public static void Show(){const string file = "SampleHouse.ifc";using (var model = IfcStore.Open(file)){var project = model.Instances.FirstOrDefault<IIfcProject>();PrintHierarchy(project, 0);}}private static void PrintHierarchy(IIfcObjectDefinition o, int level){Console.WriteLine(string.Format("{0}{1} [{2}]", GetIndent(level), o.Name, o.GetType().Name));// 只有空间元素可以包含建筑元素var spatialElement = o as IIfcSpatialStructureElement;if (spatialElement != null){// 使用 IfcRelContainedInSpatialElement 获取包含的元素var containedElements = spatialElement.ContainsElements.SelectMany(rel => rel.RelatedElements);foreach (var element in containedElements)Console.WriteLine(string.Format("{0}    ->{1} [{2}]", GetIndent(level), element.Name, element.GetType().Name));}// 使用 IfcRelAggregares 获取空间结构元素的空间分解foreach (var item in o.IsDecomposedBy.SelectMany(r => r.RelatedObjects))PrintHierarchy(item, level +1);}private static string GetIndent(int level){var indent = "";for (int i = 0; i < level; i++)indent += "  ";return indent;}}
}

Project Number [IfcProject]Default [IfcSite][IfcBuilding]Ground Floor [IfcBuildingStorey]->Basic Wall:Wall-Ext_102Bwk-75Ins-100LBlk-12P:285330 [IfcWall]->Basic Wall:Wall-Ext_102Bwk-75Ins-100LBlk-12P:285395 [IfcWall]->Basic Wall:Wall-Ext_102Bwk-75Ins-100LBlk-12P:285459 [IfcWall]->Curtain Wall:Curtain_Wall-Exterior_Glazing:285582 [IfcCurtainWall]->Curtain Wall:Curtain_Wall-Exterior_Glazing:285684 [IfcCurtainWall]->Basic Wall:Wall-Partn_12P-70MStd-12P:285792 [IfcWallStandardCase]->Basic Wall:Wall-Partn_12P-70MStd-12P:285846 [IfcWallStandardCase]->Doors_ExtDbl_Flush:1810x2110mm:285860 [IfcDoor]->Doors_IntSgl:810x2110mm:285959 [IfcDoor]->Doors_IntSgl:810x2110mm:285996 [IfcDoor]->Windows_Sgl_Plain:1810x1210mm:286105 [IfcWindow]->Windows_Sgl_Plain:1810x1210mm:286188 [IfcWindow]->Windows_Sgl_Plain:1810x1210mm:286238 [IfcWindow]->Compound Ceiling:Plain:286319 [IfcCovering]->Compound Ceiling:Plain:286329 [IfcCovering]->Compound Ceiling:Plain:286337 [IfcCovering]->Floor:Floor-Grnd-Susp_65Scr-80Ins-100Blk-75PC:286349 [IfcSlab]->Windows_Sgl_Plain:1810x1210mm:287567 [IfcWindow]1 - Living room [IfcSpace]->Furniture_Table_Dining_w-Chairs_Rectangular:2000x1000x750mm_w-6_Seats:289768 [IfcFurniture]->Chair - Dining:Chair - Dining:289769 [IfcFurniture]->Chair - Dining:Chair - Dining:289770 [IfcFurniture]->Chair - Dining:Chair - Dining:289771 [IfcFurniture]->Chair - Dining:Chair - Dining:289772 [IfcFurniture]->Chair - Dining:Chair - Dining:290097 [IfcFurniture]->Chair - Dining:Chair - Dining:290098 [IfcFurniture]->Furniture_Couch_Viper:2290x950x340mm:290852 [IfcFurniture]->Furniture_Chair_Viper:1120x940x350mm:291916 [IfcFurniture]->Furniture_Chair_Viper:1120x940x350mm:292127 [IfcFurniture]->Furniture_Table_Coffee_1:1200x550x450mm:293046 [IfcFurniture]->Furniture_Piano:1370x600x1170mm:293961 [IfcFurniture]2 - Bedroom [IfcSpace]->Furniture_Desk:1525x762mm:287689 [IfcFurniture]->Furniture_Bed_1:1525x2007x355mm-Queen:295878 [IfcFurniture]3 - Entrance hall [IfcSpace]Roof [IfcBuildingStorey]->Basic Roof:Roof_Flat-4Felt-150Ins-50Scr-150Conc-12Plr:286419 [IfcRoof]->Floor:Simple floor:295048 [IfcSlab]4 - Roof [IfcSpace]