Function main

src/examples/IfcOpenHouse.cpp:60–523

void createGroundShape(TopoDS_Shape& shape);

int main() {

	// The IfcHierarchyHelper is a subclass of the regular IfcFile that provides several
	// convenience functions for working with geometry in IFC files.
	IfcHierarchyHelper<IfcSchema> file;
	file.header().file_name()->setname("IfcOpenHouse.ifc");

	// Start by adding a wall to the file, initially leaving most attributes blank.
	IfcSchema::IfcWallStandardCase* south_wall = new IfcSchema::IfcWallStandardCase(
		guid(), 			// GlobalId
		0, 					// OwnerHistory
		"South wall"s,	 	// Name
		null, 				// Description
		null, 				// ObjectType
		0, 					// ObjectPlacement
		0, 					// Representation
		null				// Tag
#ifdef USE_IFC4
		, IfcSchema::IfcWallTypeEnum::IfcWallType_STANDARD
#endif
	);
	file.addBuildingProduct(south_wall);

	// By adding a wall, a hierarchy has been automatically created that consists of the following
	// structure: IfcProject > IfcSite > IfcBuilding > IfcBuildingStorey > IfcWall

	// Lateron changing the name of the IfcProject can be done by obtaining a reference to the 
	// project, which has been created automatically.
	file.getSingle<IfcSchema::IfcProject>()->setName("IfcOpenHouse"s);

	// An IfcOwnerHistory has been initialized as well, which should be assigned to the wall.
	south_wall->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());

	// The wall will be shaped as a box, with the dimensions specified in millimeters. The resulting
	// product definition will consist of both a body representation as well as an axis representation
	// that runs over the centerline of the box in the X-axis.
	IfcSchema::IfcProductDefinitionShape* south_wall_shape = file.addAxisBox(10000, 360, 3000);

	// Obtain a reference to the placement of the IfcBuildingStorey in order to create a hierarchy
	// of placements for the products
	IfcSchema::IfcObjectPlacement* storey_placement = file.getSingle<IfcSchema::IfcBuildingStorey>()->ObjectPlacement();

	// The shape has to be assigned to the representation of the wall and is placed at the origin
	// of the coordinate system.
	south_wall->setRepresentation(south_wall_shape);
	south_wall->setObjectPlacement(file.addLocalPlacement(storey_placement));

	// A pale white colour is assigned to the wall.
	IfcSchema::IfcPresentationStyleAssignment* wall_colour = setSurfaceColour(file, south_wall_shape, 0.75, 0.73, 0.68);

	// Now create a footing for the wall to rest on.
	IfcSchema::IfcFooting* footing = new IfcSchema::IfcFooting(guid(), file.getSingle<IfcSchema::IfcOwnerHistory>(),
		"Footing"s, null, null, 0, 0, null, IfcSchema::IfcFootingTypeEnum::IfcFootingType_STRIP_FOOTING);

	file.addBuildingProduct(footing);

	// The footing will span the entire floor plan of our building. The IfcRepresentationContext is
	// something that has been created automatically as well, but representations could have been