IfcOpenShell/src/ifcgeom/kernels/cgal/CgalKernel.cpp

/********************************************************************************
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* This file is part of IfcOpenShell.                                           *
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* 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  *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
* Lesser GNU General Public License for more details.                          *
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* You should have received a copy of the Lesser GNU General Public License     *
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#include "../../../ifcgeom/IfcGeomShapeType.h"
#include "../../../ifcgeom/IfcGeom.h"

#include "CgalKernel.h"
#include "CgalConversionResult.h"

bool IfcGeom::CgalKernel::is_identity_transform(IfcUtil::IfcBaseClass* l) {
	Logger::Message(Logger::LOG_ERROR, "Not implemented is_identity_transform()");
	return false;
	/*
	// OpenCascade kernel code below

	IfcSchema::IfcAxis2Placement2D* ax2d;
	IfcSchema::IfcAxis2Placement3D* ax3d;

	IfcSchema::IfcCartesianTransformationOperator2D* op2d;
	IfcSchema::IfcCartesianTransformationOperator3D* op3d;
	IfcSchema::IfcCartesianTransformationOperator2DnonUniform* op2dnonu;
	IfcSchema::IfcCartesianTransformationOperator3DnonUniform* op3dnonu;

	if ((op2dnonu = l->as<IfcSchema::IfcCartesianTransformationOperator2DnonUniform>()) != 0) {
		gp_GTrsf2d gtrsf2d;
		convert(op2dnonu, gtrsf2d);
		return gtrsf2d.Form() == gp_Identity;
	} else if ((op2d = l->as<IfcSchema::IfcCartesianTransformationOperator2D>()) != 0) {
		gp_Trsf2d trsf2d;
		convert(op2d, trsf2d);
		return trsf2d.Form() == gp_Identity;
	} else if ((op3dnonu = l->as<IfcSchema::IfcCartesianTransformationOperator3DnonUniform>()) != 0) {
		gp_GTrsf gtrsf;
		convert(op3dnonu, gtrsf);
		return gtrsf.Form() == gp_Identity;
	} else if ((op3d = l->as<IfcSchema::IfcCartesianTransformationOperator3D>()) != 0) {
		gp_Trsf trsf;
		convert(op3d, trsf);
		return trsf.Form() == gp_Identity;
	} else if ((ax2d = l->as<IfcSchema::IfcAxis2Placement2D>()) != 0) {
		gp_Trsf2d trsf2d;
		convert(ax2d, trsf2d);
		return trsf2d.Form() == gp_Identity;
	} else if ((ax3d = l->as<IfcSchema::IfcAxis2Placement3D>()) != 0) {
		gp_Trsf trsf;
		convert(ax3d, trsf);
		return trsf.Form() == gp_Identity;
	} else {
		throw IfcParse::IfcException("Invalid valuation for IfcAxis2Placement / IfcCartesianTransformationOperator");
	}
	*/
}

IfcGeom::NativeElement<double>* IfcGeom::CgalKernel::create_brep_for_representation_and_product(
	const IteratorSettings& settings, IfcSchema::IfcRepresentation* representation, IfcSchema::IfcProduct* product)
{
	IfcGeom::Representation::Native* shape;
	IfcGeom::ConversionResults shapes, shapes2;

	if (!convert_shapes(representation, shapes)) {
		return 0;
	}

	if (settings.get(IteratorSettings::APPLY_LAYERSETS)) {
		Logger::Message(Logger::LOG_ERROR, "Not implemented APPLY_LAYERSETS");
	}

	int parent_id = -1;
	try {
		IfcSchema::IfcObjectDefinition* parent_object = get_decomposing_entity(product);
		if (parent_object) {
			parent_id = parent_object->entity->id();
		}
	} catch (...) {}

	const std::string name = product->hasName() ? product->Name() : "";
	const std::string guid = product->GlobalId();

	cgal_placement_t trsf;
	try {
		// convert(product->ObjectPlacement(), trsf);
	} catch (...) {}

	// Does the IfcElement have any IfcOpenings?
	// Note that openings for IfcOpeningElements are not processed
	IfcSchema::IfcRelVoidsElement::list::ptr openings = find_openings(product);

	const std::string product_type = IfcSchema::Type::ToString(product->type());
	ElementSettings element_settings(settings, getValue(GV_LENGTH_UNIT), product_type);

	if (!settings.get(IfcGeom::IteratorSettings::DISABLE_OPENING_SUBTRACTIONS) && openings && openings->size()) {
		Logger::Message(Logger::LOG_ERROR, "Not implemented opening subtractions");
	}
	
	shape = new IfcGeom::Representation::Native(element_settings, representation->entity->id(), shapes);
	
	std::string context_string = "";
	if (representation->hasRepresentationIdentifier()) {
		context_string = representation->RepresentationIdentifier();
	} else if (representation->ContextOfItems()->hasContextType()) {
		context_string = representation->ContextOfItems()->ContextType();
	}

	return new NativeElement<double>(
		product->entity->id(),
		parent_id,
		name,
		product_type,
		guid,
		context_string,
		new CgalPlacement(trsf),
		boost::shared_ptr<IfcGeom::Representation::Native>(shape)
	);
}

IfcGeom::NativeElement<double>* IfcGeom::CgalKernel::create_brep_for_processed_representation(
	const IteratorSettings& /*settings*/, IfcSchema::IfcRepresentation* representation, IfcSchema::IfcProduct* product,
	IfcGeom::NativeElement<double>* brep)
{
	int parent_id = -1;
	try {
		IfcSchema::IfcObjectDefinition* parent_object = get_decomposing_entity(product);
		if (parent_object) {
			parent_id = parent_object->entity->id();
		}
	} catch (...) {}

	const std::string name = product->hasName() ? product->Name() : "";
	const std::string guid = product->GlobalId();

	cgal_placement_t trsf;
	try {
		// convert(product->ObjectPlacement(), trsf);
	} catch (...) {}

	std::string context_string = "";
	if (representation->hasRepresentationIdentifier()) {
		context_string = representation->RepresentationIdentifier();
	} else if (representation->ContextOfItems()->hasContextType()) {
		context_string = representation->ContextOfItems()->ContextType();
	}

	const std::string product_type = IfcSchema::Type::ToString(product->type());

	return new NativeElement<double>(
		product->entity->id(),
		parent_id,
		name,
		product_type,
		guid,
		context_string,
		new CgalPlacement(trsf),
		brep->geometry_pointer()
	);
}