系列目錄????【已更新最新開發(fā)文章，點擊查看詳細】?

本篇介紹如何從文件中檢索空間結構。IFC中的空間結構表示層次結構的嵌套結構，表示項目，站點，建筑物，樓層和空間。如果您查看IFC文檔，?您會發(fā)現(xiàn)建筑物可以包含樓層以及其他建筑物，樓層可以包含空間以及其他樓層等。此類關系也使用IfcRelAggregates建模，?但如果要查找特定空間結構中包含的元素，則將其建模為?IfcRelContainedInSpatialStructure，?因此它取決于您要查找的內容。下面的示例演示如何使用上述兩種關系搜索和遍歷數(shù)據(jù)以獲得完整的層次結構。

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));// 只有空間元素可以包含建筑元素var spatialElement = o as IIfcSpatialStructureElement;if (spatialElement != null){// 使用 IfcRelContainedInSpatialElement 獲取包含的元素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 獲取空間結構元素的空間分解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;}} }

輸出結果如下：

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] 系列目錄????【已更新最新開發(fā)文章，點擊查看詳細】?

轉載于:https://www.cnblogs.com/SavionZhang/p/10983394.html

總結

以上是生活随笔為你收集整理的xBIM 基础16 IFC的空间层次结构的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內容還不錯，歡迎將生活随笔推薦給好友。