xBIM IFC 層次結構

ifc的空間層級

下面例子：如何從檔案中檢索空間結構，ifc的空間結構是指代表專案，地點，建築物，樓層和空間的層次結構。那麼檢視ifc檔案，我們將會發現建築物可以包含樓層和其他建築物，樓層可以包含空間以及其他樓層等。而且這種關係是用ifcrelaggregates建模的，但是如果想找到包含在特點空間結構中元素，它就被建模為ifcrelcontainedinspatialstructure，所以取決於想要找到的東西。下面的例子展示了如何使用上面提到的兩個關係來搜尋和遍歷資料以獲得完整的層次結構。

using
system;
using
system.linq;
using
xbim.ifc;
using
xbim.ifc4.inte***ces;
namespace
basicexamples
}private
static
void printhierarchy(iifcobjectdefinition o, int
level)
", getindent(level), o.name, o.gettype().name));
//只有空間元素可以包含建築元素
var spatialelement = o as
iifcspatialstructureelement;
if (spatialelement != null
)                -> 
", getindent(level), element.name, element.gettype().name));
}//利用 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)
}}

輸出樣本模型

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:****** floor:295048
[ifcslab]
4 - roof [ifcspace]

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