mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-17 02:49:12 +00:00
Thomas Krijnen
172 lines
8.1 KiB
C++
172 lines
8.1 KiB
C++
/********************************************************************************
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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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#ifndef IFCGEOM_H
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#define IFCGEOM_H
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#include <cmath>
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#include <array>
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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#include <gp_Mat.hxx>
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#include <gp_Mat2d.hxx>
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#include <gp_GTrsf.hxx>
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#include <gp_GTrsf2d.hxx>
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#include <gp_Trsf.hxx>
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#include <gp_Trsf2d.hxx>
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#include <gp_Quaternion.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopoDS_Face.hxx>
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#include <Geom_Curve.hxx>
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#include <gp_Pln.hxx>
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#include <BOPAlgo_Operation.hxx>
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#include <BRep_Builder.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include "../../../ifcgeom/abstract_kernel.h"
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#include "../../../ifcgeom/element.h"
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#include "../../../ifcgeom/representation.h"
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#include "../../../ifcgeom/conversion_result.h"
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#include "../../../ifcgeom/kernels/opencascade/opencascade_conversion_result.h"
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#include "../../../ifcgeom/kernels/ifc_geomlibrary_api.h"
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#include "../../../ifcgeom/taxonomy.h"
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#include "../../../ifcgeom/conversion_settings.h"
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namespace {
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template <typename Fn>
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bool handle_occt_exception(Fn&& fn) {
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try {
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return std::forward<Fn>(fn)();
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} catch (const Standard_Failure& e) {
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if (e.GetMessageString() && strlen(e.GetMessageString())) {
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throw std::runtime_error(e.GetMessageString());
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} else {
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throw std::runtime_error("Unknown error creating geometry");
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}
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}
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}
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}
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namespace ifcopenshell::geom {
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class IFC_GEOMLIBRARY_API open_cascade_kernel : public ifcopenshell::geom::kernels::abstract_kernel {
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private:
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/*
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faceset_helper traverses the forward instance references of IfcConnectedFaceSet and then provides a mapping
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M of (IfcCartesianPoint, IfcCartesianPoint) -> TopoDS_Edge, where M(a, b) is a partner of M(b, a), ie share
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the same underlying edge but with orientation reversed. This then later speeds op the process of creating a
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manifold Shell / Solid from this set of faces. Only IfcPolyLoop instances are used. Points within the tolerance
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threshiold are merged, so consider points a, b, c, distance(a, b) < eps then M(a, b) = Null, M(a, b) = M(a, c).
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*/
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class faceset_helper {
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private:
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open_cascade_kernel* kernel_;
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std::set<int> duplicates_;
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std::map<int, int> vertex_mapping_;
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std::map<std::pair<int, int>, TopoDS_Edge> edges_;
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double eps_;
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bool non_manifold_;
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void loop_(const ifcopenshell::geom::taxonomy::loop::ptr ps, const std::function<void(int, int, bool)>& callback);
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public:
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faceset_helper(open_cascade_kernel* kernel, const ifcopenshell::geom::taxonomy::shell::ptr l);
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~faceset_helper();
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bool non_manifold() const { return non_manifold_; }
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bool& non_manifold() { return non_manifold_; }
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double epsilon() const { return eps_; }
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bool edge(int A, int B, TopoDS_Edge& e);
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bool wire(const ifcopenshell::geom::taxonomy::loop::ptr loop, TopoDS_Wire& wire);
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bool wires(const ifcopenshell::geom::taxonomy::loop::ptr loop, NCollection_List<TopoDS_Shape>& wires);
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};
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faceset_helper* faceset_helper_;
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double precision_;
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public:
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open_cascade_kernel(const ifcopenshell::geom::settings& settings, ifcopenshell::logger& logger = ifcopenshell::logger::root())
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: abstract_kernel("opencascade", settings, logger)
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, faceset_helper_(nullptr)
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, precision_(settings.get<ifcopenshell::geom::settings::Precision>().get())
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{}
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virtual abstract_kernel* clone(ifcopenshell::logger& logger) const {
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return new open_cascade_kernel(settings(), logger);
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}
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virtual bool supports_boolean_operations() const { return true; }
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bool convert(const ifcopenshell::geom::taxonomy::extrusion::ptr, TopoDS_Shape&);
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bool convert(const ifcopenshell::geom::taxonomy::face::ptr, TopoDS_Shape&, bool reversed_surface = false);
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bool convert(const ifcopenshell::geom::taxonomy::loop::ptr, TopoDS_Wire&);
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bool convert(const ifcopenshell::geom::taxonomy::matrix4::ptr, gp_GTrsf&);
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bool convert(const ifcopenshell::geom::taxonomy::shell::ptr, TopoDS_Shape&);
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bool convert(const ifcopenshell::geom::taxonomy::solid::ptr, TopoDS_Shape&);
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bool convert(const ifcopenshell::geom::taxonomy::loft::ptr, TopoDS_Shape&);
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bool convert(const ifcopenshell::geom::taxonomy::bspline_surface::ptr bs, Handle(Geom_Surface) surf);
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bool convert(const ifcopenshell::geom::taxonomy::sweep_along_curve::ptr, TopoDS_Shape&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::edge::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::loop::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::face::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::solid::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::shell::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::extrusion::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::revolve::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::boolean_result::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::loft::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_impl(const ifcopenshell::geom::taxonomy::sweep_along_curve::ptr, std::vector<ifcopenshell::geom::conversion_result>&);
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virtual bool convert_openings(const express::base& entity, const std::vector<std::pair<ifcopenshell::geom::taxonomy::ptr, ifcopenshell::geom::taxonomy::matrix4>>& openings,
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const std::vector<ifcopenshell::geom::conversion_result>& entity_shapes, const ifcopenshell::geom::taxonomy::matrix4& entity_trsf, std::vector<ifcopenshell::geom::conversion_result>& cut_shapes);
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virtual bool unify_shapes(const std::vector<ifcopenshell::geom::conversion_result>& input, std::vector<ifcopenshell::geom::conversion_result>& output);
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typedef std::variant<boost::blank, Handle(Geom_Curve), TopoDS_Wire> curve_creation_visitor_result_type;
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curve_creation_visitor_result_type convert_curve(const ifcopenshell::geom::taxonomy::ptr);
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Handle(Geom_Surface) convert_surface(const ifcopenshell::geom::taxonomy::ptr);
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template <typename T, typename U>
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static T convert_xyz(const U& u) {
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const auto& vs = u.ccomponents();
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return T(vs(0), vs(1), vs(2));
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}
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// @todo eliminate
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template <typename T, typename U>
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static T convert_xyz2(const U& vs) {
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return T(vs(0), vs(1), vs(2));
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}
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};
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express::base POSTFIX_SCHEMA(tesselate_)(const TopoDS_Shape& shape, double deflection);
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express::base POSTFIX_SCHEMA(serialise_)(const TopoDS_Shape& shape, bool advanced);
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}
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#endif
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