mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
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76 lines
3.4 KiB
C++
76 lines
3.4 KiB
C++
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/********************************************************************************
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* *
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* This file is part of IfcOpenShell. *
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* *
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* IfcOpenShell is free software: you can redistribute it and/or modify *
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* it under the terms of the Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 of the License, or *
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* (at your option) any later version. *
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* *
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* IfcOpenShell is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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#include <gp_Trsf.hxx>
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#include "../ifcgeom/IfcGeom.h"
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#define Kernel MAKE_TYPE_NAME(Kernel)
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcObjectPlacement* l, gp_Trsf& trsf) {
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IN_CACHE(IfcObjectPlacement,l,gp_Trsf,trsf)
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if ( ! l->declaration().is(IfcSchema::IfcLocalPlacement::Class()) ) {
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Logger::Message(Logger::LOG_ERROR, "Unsupported IfcObjectPlacement:", l);
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return false;
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}
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IfcSchema::IfcLocalPlacement* current = (IfcSchema::IfcLocalPlacement*)l;
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for (;;) {
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gp_Trsf trsf2;
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IfcSchema::IfcAxis2Placement* relplacement = current->RelativePlacement();
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if (relplacement->as<IfcSchema::IfcAxis2Placement3D>()) {
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IfcGeom::Kernel::convert(relplacement->as<IfcSchema::IfcAxis2Placement3D>(),trsf2);
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trsf.PreMultiply(trsf2);
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}
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if (current->PlacementRelTo()) {
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IfcSchema::IfcObjectPlacement* parent = current->PlacementRelTo();
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bool parent_placement_ignored = false;
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if (placement_rel_to_type_ || placement_rel_to_instance_) {
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IfcSchema::IfcProduct::list::ptr parent_places = parent->PlacesObject();
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for (auto iter = parent_places->begin(); iter != parent_places->end(); ++iter) {
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if ((placement_rel_to_type_ && (*iter)->declaration().is(*placement_rel_to_type_)) ||
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(placement_rel_to_instance_ && (*iter)->as<IfcUtil::IfcBaseEntity>() == placement_rel_to_instance_)) {
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parent_placement_ignored = true;
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}
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}
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}
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if (parent_placement_ignored) {
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// The parent placement of the current is a placement for a type that is
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// being ignored (Site or Building) or it is the host element of an opening.
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break;
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} else if (parent->declaration().is(IfcSchema::IfcLocalPlacement::Class())) {
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// Keep processing parent placements
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current = current->PlacementRelTo()->as<IfcSchema::IfcLocalPlacement>();
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} else {
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// This is the root placement (typically Site).
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break;
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}
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} else {
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break;
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}
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}
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trsf.PreMultiply(offset_and_rotation);
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CACHE(IfcObjectPlacement,l,trsf)
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return true;
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}
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