Add IfcReinforcingBar/IfcSweptDiskSolid generation example

2026-08-09 09:21:46 +00:00 · 2016-05-27 17:18:39 +09:00
parent 9909e2f7e2
commit 5bdb4ce668
1 changed files with 143 additions and 0 deletions
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+/********************************************************************************
+*                                                                              *
+* This file is part of IfcOpenShell.                                           *
+*                                                                              *
+* IfcOpenShell is free software: you can redistribute it and/or modify         *
+* it under the terms of the Lesser GNU General Public License as published by  *
+* the Free Software Foundation, either version 3.0 of the License, or          *
+* (at your option) any later version.                                          *
+*                                                                              *
+* IfcOpenShell is distributed in the hope that it will be useful,              *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+* Lesser GNU General Public License for more details.                          *
+*                                                                              *
+* You should have received a copy of the Lesser GNU General Public License     *
+* along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+*                                                                              *
+********************************************************************************/
+
+/********************************************************************************
+*																				*
+* Example of curve rebar.														*
+*																				*
+********************************************************************************/
+
+#include <iostream>
+#include <string>
+#include <fstream>
+
+#include "ifcparse\Ifc2x3.h"
+#include "ifcparse\IfcUtil.h"
+#include "ifcparse\IfcHierarchyHelper.h"
+#include "ifcgeom\IfcGeom.h"
+
+typedef std::string S;
+typedef IfcParse::IfcGlobalId guid;
+boost::none_t const null = boost::none;
+
+void create_curve_rebar(IfcHierarchyHelper& file)
+{
+	int dia = 24;
+	int R = 3 * dia;
+	int length = 12 * dia;
+
+	double crossSectionarea = M_PI * (dia / 2) * 2;
+	IfcSchema::IfcReinforcingBar* rebar = new IfcSchema::IfcReinforcingBar(
+		guid(), 0, S("test"), null,
+		null, 0, 0,
+		null, S("SR24"),		//SteelGrade
+		dia,						//diameter
+		crossSectionarea,		//crossSectionarea = math.pi*(12.0/2)**2
+		0,
+		IfcSchema::IfcReinforcingBarRoleEnum::IfcReinforcingBarRoleEnum::IfcReinforcingBarRole_LIGATURE,
+		IfcSchema::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurface_PLAIN	//PLAIN or TEXTURED
+		);
+
+	file.addBuildingProduct(rebar);
+	rebar->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+	IfcSchema::IfcCompositeCurveSegment::list::ptr segments(new IfcSchema::IfcCompositeCurveSegment::list());
+
+	IfcSchema::IfcCartesianPoint* p1 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, 0, 1000.);
+	IfcSchema::IfcCartesianPoint* p2 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, 0, 0);
+	IfcSchema::IfcCartesianPoint* p3 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, R, 0);
+	IfcSchema::IfcCartesianPoint* p4 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, R, -R);
+	IfcSchema::IfcCartesianPoint* p5 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, R + length, -R);
+
+	/*first segment - line */
+	IfcSchema::IfcCartesianPoint::list::ptr points1(new IfcSchema::IfcCartesianPoint::list());
+	points1->push(p1);
+	points1->push(p2);
+	file.addEntities(points1->generalize());
+	IfcSchema::IfcPolyline* poly1 = new IfcSchema::IfcPolyline(points1);
+	file.addEntity(poly1);
+
+	IfcSchema::IfcCompositeCurveSegment* segment1 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTINUOUS, true, poly1);
+	file.addEntity(segment1);
+	segments->push(segment1);
+
+	/*second segment - arc */
+	IfcSchema::IfcAxis2Placement3D* axis1 = new IfcSchema::IfcAxis2Placement3D(p3, file.addTriplet<IfcSchema::IfcDirection>(1, 0, 0), file.addTriplet<IfcSchema::IfcDirection>(0, 1, 0));
+	file.addEntity(axis1);
+	IfcSchema::IfcCircle* circle = new IfcSchema::IfcCircle(axis1, R);
+	file.addEntity(circle);
+
+	IfcEntityList::ptr trim1(new IfcEntityList);
+	IfcEntityList::ptr trim2(new IfcEntityList);
+
+	trim1->push(new IfcSchema::IfcParameterValue(180));
+	trim1->push(p2);
+
+	trim2->push(new IfcSchema::IfcParameterValue(270));
+	trim2->push(p4);
+	IfcSchema::IfcTrimmedCurve* trimmed_curve = new IfcSchema::IfcTrimmedCurve(circle, trim1, trim2, false, IfcSchema::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	file.addEntity(trimmed_curve);
+
+	IfcSchema::IfcCompositeCurveSegment* segment2 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTSAMEGRADIENT, false, trimmed_curve);
+	file.addEntity(segment2);
+	segments->push(segment2);
+
+	/*third segment - line */
+	IfcSchema::IfcCartesianPoint::list::ptr points2(new IfcSchema::IfcCartesianPoint::list());
+	points2->push(p4);
+	points2->push(p5);
+	file.addEntities(points2->generalize());
+	IfcSchema::IfcPolyline* poly2 = new IfcSchema::IfcPolyline(points2);
+	file.addEntity(poly2);
+
+	IfcSchema::IfcCompositeCurveSegment* segment3 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTINUOUS, true, poly2);
+	file.addEntity(segment3);
+	segments->push(segment3);
+
+	IfcSchema::IfcCompositeCurve* curve = new IfcSchema::IfcCompositeCurve(segments, false);
+	file.addEntity(curve);
+
+	IfcSchema::IfcSweptDiskSolid* solid = new IfcSchema::IfcSweptDiskSolid(curve, dia / 2, null, 0, 1);
+
+	IfcSchema::IfcRepresentation::list::ptr reps(new IfcSchema::IfcRepresentation::list());
+	IfcSchema::IfcRepresentationItem::list::ptr items(new IfcSchema::IfcRepresentationItem::list());
+	items->push(solid);
+	IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+		file.getSingle<IfcSchema::IfcRepresentationContext>(), S("Body"), S("AdvancedSweptSolid"), items);
+	reps->push(rep);
+
+	IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(null, null, reps);
+	file.addEntity(shape);
+
+	rebar->setRepresentation(shape);
+
+	IfcSchema::IfcObjectPlacement* storey_placement = file.getSingle<IfcSchema::IfcBuildingStorey>()->ObjectPlacement();
+	rebar->setObjectPlacement(file.addLocalPlacement(storey_placement, 0, 0, 0));
+}
+
+int main()
+{
+	IfcHierarchyHelper file;
+	file.header().file_name().name("ifc_curve_rebar.ifc");
+	create_curve_rebar(file);
+	std::ofstream f("ifc_curve_rebar.ifc");
+	f << file;
+
+	return 0;
+}