From c91995e3cab1eac06f2e9ee5cd69143dee40458d Mon Sep 17 00:00:00 2001
From: Bruno Postle <bruno@postle.net>
Date: Fri, 27 Feb 2026 13:11:15 +0000
Subject: [PATCH 1/2] Add hearth as focal point for community gathering
 (Pattern 181)

---
 _test_simple.ifc | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/_test_simple.ifc b/_test_simple.ifc
index 8c818e6..7a64dd4 100644
--- a/_test_simple.ifc
+++ b/_test_simple.ifc
@@ -84,7 +84,7 @@ DATA;
 #97=IFCAXIS2PLACEMENT3D(#94,#95,#96);
 #98=IFCLOCALPLACEMENT(#82,#97);
 #99=IFCELEMENTASSEMBLY('1JMWfAC15Dh9jLMGikyiLb',$,'exterior',$,$,#110,$,$,$,$);
-#105=IFCRELCONTAINEDINSPATIALSTRUCTURE('3Pqhf1QtP2Ivceh_6HdxtU',$,$,$,(#2162,#2524,#1653,#99,#1305,#3095),#86);
+#105=IFCRELCONTAINEDINSPATIALSTRUCTURE('3Pqhf1QtP2Ivceh_6HdxtU',$,$,$,(#3095,#99,#1305,#2162,#2524,#1653,#4034),#86);
 #106=IFCCARTESIANPOINT((-3.44354057312012,3.,0.));
 #107=IFCDIRECTION((0.,0.,1.));
 #108=IFCDIRECTION((0.233915393914003,-0.972256955999831,0.));
@@ -3673,5 +3673,23 @@ DATA;
 #4031=IFCCOSTVALUE($,$,IFCMONETARYMEASURE(3620.6),$,$,$,'*',$,$,$);
 #4032=IFCCOSTVALUE($,$,IFCMONETARYMEASURE(1464.5),$,$,$,'*',$,$,$);
 #4033=IFCPROPERTYSINGLEVALUE('FireRating',$,IFCLABEL('30'),$);
+#4034=IFCFURNISHINGELEMENT('29s6jzoGT4vA3gYLa8vDfG',$,'hearth',$,$,#4051,#4041,$);
+#4035=IFCCARTESIANPOINTLIST2D(((0.,0.),(1.2,0.),(1.2,0.9),(0.,0.9)));
+#4036=IFCINDEXEDPOLYCURVE(#4035,$,$);
+#4037=IFCDIRECTION((0.,0.,1.));
+#4038=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#4036);
+#4039=IFCEXTRUDEDAREASOLID(#4038,$,#4037,1.2);
+#4040=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#4039));
+#4041=IFCPRODUCTDEFINITIONSHAPE($,$,(#4040));
+#4047=IFCCARTESIANPOINT((-2.6,0.15,0.02));
+#4048=IFCDIRECTION((0.,0.,1.));
+#4049=IFCDIRECTION((1.,0.,0.));
+#4050=IFCAXIS2PLACEMENT3D(#4047,#4048,#4049);
+#4051=IFCLOCALPLACEMENT(#92,#4050);
+#4052=IFCPROPERTYSET('2it95LN0HCfPGwSShvs14h',$,'EPset_Pattern',$,(#4054,#4055,#4056));
+#4053=IFCRELDEFINESBYPROPERTIES('0lkxKv$fn6_86KZ7LkGW1j',$,$,$,(#4034),#4052);
+#4054=IFCPROPERTYSINGLEVALUE('PatternNumber',$,IFCLABEL('181'),$);
+#4055=IFCPROPERTYSINGLEVALUE('PatternName',$,IFCLABEL('The Fire'),$);
+#4056=IFCPROPERTYSINGLEVALUE('Notes',$,IFCLABEL('Central focal point for community gatherings. Position visible from all areas of the hall.'),$);
 ENDSEC;
 END-ISO-10303-21;

From 5fc0d33eb9124b9b3988398339bd2051c18bbfe6 Mon Sep 17 00:00:00 2001
From: Bruno Postle <bruno@postle.net>
Date: Fri, 27 Feb 2026 14:17:02 +0000
Subject: [PATCH 2/2] Resize stove to 600x500x800mm, reposition against south
 wall, add chimney

---
 _test_simple.ifc | 48 +++++++++++++++++++++++++++++++++---------------
 1 file changed, 33 insertions(+), 15 deletions(-)

diff --git a/_test_simple.ifc b/_test_simple.ifc
index 7a64dd4..a306196 100644
--- a/_test_simple.ifc
+++ b/_test_simple.ifc
@@ -84,7 +84,7 @@ DATA;
 #97=IFCAXIS2PLACEMENT3D(#94,#95,#96);
 #98=IFCLOCALPLACEMENT(#82,#97);
 #99=IFCELEMENTASSEMBLY('1JMWfAC15Dh9jLMGikyiLb',$,'exterior',$,$,#110,$,$,$,$);
-#105=IFCRELCONTAINEDINSPATIALSTRUCTURE('3Pqhf1QtP2Ivceh_6HdxtU',$,$,$,(#3095,#99,#1305,#2162,#2524,#1653,#4034),#86);
+#105=IFCRELCONTAINEDINSPATIALSTRUCTURE('3Pqhf1QtP2Ivceh_6HdxtU',$,$,$,(#4034,#3095,#4069,#99,#1305,#2524,#1653,#2162),#86);
 #106=IFCCARTESIANPOINT((-3.44354057312012,3.,0.));
 #107=IFCDIRECTION((0.,0.,1.));
 #108=IFCDIRECTION((0.233915393914003,-0.972256955999831,0.));
@@ -3673,23 +3673,41 @@ DATA;
 #4031=IFCCOSTVALUE($,$,IFCMONETARYMEASURE(3620.6),$,$,$,'*',$,$,$);
 #4032=IFCCOSTVALUE($,$,IFCMONETARYMEASURE(1464.5),$,$,$,'*',$,$,$);
 #4033=IFCPROPERTYSINGLEVALUE('FireRating',$,IFCLABEL('30'),$);
-#4034=IFCFURNISHINGELEMENT('29s6jzoGT4vA3gYLa8vDfG',$,'hearth',$,$,#4051,#4041,$);
-#4035=IFCCARTESIANPOINTLIST2D(((0.,0.),(1.2,0.),(1.2,0.9),(0.,0.9)));
-#4036=IFCINDEXEDPOLYCURVE(#4035,$,$);
-#4037=IFCDIRECTION((0.,0.,1.));
-#4038=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#4036);
-#4039=IFCEXTRUDEDAREASOLID(#4038,$,#4037,1.2);
-#4040=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#4039));
-#4041=IFCPRODUCTDEFINITIONSHAPE($,$,(#4040));
-#4047=IFCCARTESIANPOINT((-2.6,0.15,0.02));
-#4048=IFCDIRECTION((0.,0.,1.));
-#4049=IFCDIRECTION((1.,0.,0.));
-#4050=IFCAXIS2PLACEMENT3D(#4047,#4048,#4049);
-#4051=IFCLOCALPLACEMENT(#92,#4050);
+#4034=IFCFURNISHINGELEMENT('29s6jzoGT4vA3gYLa8vDfG',$,'wood burning stove',$,$,#4068,#4063,$);
 #4052=IFCPROPERTYSET('2it95LN0HCfPGwSShvs14h',$,'EPset_Pattern',$,(#4054,#4055,#4056));
 #4053=IFCRELDEFINESBYPROPERTIES('0lkxKv$fn6_86KZ7LkGW1j',$,$,$,(#4034),#4052);
 #4054=IFCPROPERTYSINGLEVALUE('PatternNumber',$,IFCLABEL('181'),$);
 #4055=IFCPROPERTYSINGLEVALUE('PatternName',$,IFCLABEL('The Fire'),$);
-#4056=IFCPROPERTYSINGLEVALUE('Notes',$,IFCLABEL('Central focal point for community gatherings. Position visible from all areas of the hall.'),$);
+#4056=IFCPROPERTYSINGLEVALUE('Notes',$,IFCLABEL('Wood burning stove against south wall, east corner. 600x500x800mm. Chimney above.'),$);
+#4057=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.6,0.),(0.6,0.5),(0.,0.5)));
+#4058=IFCINDEXEDPOLYCURVE(#4057,$,$);
+#4059=IFCDIRECTION((0.,0.,1.));
+#4060=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#4058);
+#4061=IFCEXTRUDEDAREASOLID(#4060,$,#4059,0.8);
+#4062=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#4061));
+#4063=IFCPRODUCTDEFINITIONSHAPE($,$,(#4062));
+#4064=IFCCARTESIANPOINT((1.2,-2.67,0.));
+#4065=IFCDIRECTION((0.,0.,1.));
+#4066=IFCDIRECTION((1.,0.,0.));
+#4067=IFCAXIS2PLACEMENT3D(#4064,#4065,#4066);
+#4068=IFCLOCALPLACEMENT(#92,#4067);
+#4069=IFCCHIMNEY('2P6guSATr2Efas6D8F8Aag',$,'chimney',$,$,#4086,#4076,$,$);
+#4070=IFCCARTESIANPOINTLIST2D(((0.,0.),(0.3,0.),(0.3,0.3),(0.,0.3)));
+#4071=IFCINDEXEDPOLYCURVE(#4070,$,$);
+#4072=IFCDIRECTION((0.,0.,1.));
+#4073=IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,$,#4071);
+#4074=IFCEXTRUDEDAREASOLID(#4073,$,#4072,4.);
+#4075=IFCSHAPEREPRESENTATION(#11,'Body','SweptSolid',(#4074));
+#4076=IFCPRODUCTDEFINITIONSHAPE($,$,(#4075));
+#4082=IFCCARTESIANPOINT((1.35,-2.67,0.));
+#4083=IFCDIRECTION((0.,0.,1.));
+#4084=IFCDIRECTION((1.,0.,0.));
+#4085=IFCAXIS2PLACEMENT3D(#4082,#4083,#4084);
+#4086=IFCLOCALPLACEMENT(#92,#4085);
+#4087=IFCPROPERTYSET('1gpvHRn_9Ab8RTte30n1YU',$,'EPset_Pattern',$,(#4089,#4090,#4091));
+#4088=IFCRELDEFINESBYPROPERTIES('3APlSy2ebC68AXKxsA6gRH',$,$,$,(#4069),#4087);
+#4089=IFCPROPERTYSINGLEVALUE('PatternNumber',$,IFCLABEL('181'),$);
+#4090=IFCPROPERTYSINGLEVALUE('PatternName',$,IFCLABEL('The Fire'),$);
+#4091=IFCPROPERTYSINGLEVALUE('Notes',$,IFCLABEL('Chimney for wood burning stove. Projects 1m above eaves.'),$);
 ENDSEC;
 END-ISO-10303-21;