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https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-09-24 17:29:57 +00:00
Major update to halfspace algorithm, conversion result shape analysis
This commit is contained in:
Thomas Krijnen
@@ -24,6 +24,8 @@
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#undef Handle
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#include "../../../ifcgeom/kernels/cgal/nef_to_halfspace_tree.h"
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#define CGAL_NO_DEPRECATED_CODE
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#include <boost/property_map/property_map.hpp>
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@@ -86,25 +88,131 @@ typedef boost::graph_traits<CGAL::Polyhedron_3<Kernel_>>::face_descriptor cgal_f
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namespace ifcopenshell { namespace geometry {
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class CgalShape : public IfcGeom::ConversionResultShape {
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public:
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CgalShape(const cgal_shape_t& shape)
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: shape_(shape) {}
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using IfcGeom::OpaqueCoordinate;
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using IfcGeom::OpaqueNumber;
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const cgal_shape_t& shape() const { return shape_; }
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operator const cgal_shape_t& () { return shape_; }
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using IfcGeom::add_;
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using IfcGeom::subtract_;
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using IfcGeom::multiply_;
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using IfcGeom::divide_;
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using IfcGeom::equals_;
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using IfcGeom::less_than_;
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using IfcGeom::negate_;
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#ifndef IFOPSH_SIMPLE_KERNEL
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class IFC_GEOM_API NumberEpeck : public OpaqueNumber {
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private:
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CGAL::Epeck::FT value_;
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template <CGAL::Epeck::FT(*Fn)(CGAL::Epeck::FT, CGAL::Epeck::FT)>
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OpaqueNumber* binary_op(OpaqueNumber* other) const {
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auto nnd = dynamic_cast<NumberEpeck*>(other);
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if (nnd) {
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return new NumberEpeck(Fn(value_, nnd->value_));
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} else {
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return nullptr;
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}
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}
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template <bool(*Fn)(CGAL::Epeck::FT, CGAL::Epeck::FT)>
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bool binary_op_bool(OpaqueNumber* other) const {
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auto nnd = dynamic_cast<NumberEpeck*>(other);
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if (nnd) {
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return new NumberEpeck(Fn(value_, nnd->value_));
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} else {
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return nullptr;
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}
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}
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template <CGAL::Epeck::FT(*Fn)(CGAL::Epeck::FT)>
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OpaqueNumber* unary_op() const {
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return new NumberEpeck(Fn(value_));
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}
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public:
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NumberEpeck(const CGAL::Epeck::FT& v)
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: value_(v) {}
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virtual double to_double() const {
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return CGAL::to_double(value_);
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}
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const CGAL::Epeck::FT& value() const {
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return value_;
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}
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virtual OpaqueNumber* operator+(OpaqueNumber* other) const {
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return binary_op<add_<CGAL::Epeck::FT>>(other);
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}
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virtual OpaqueNumber* operator-(OpaqueNumber* other) const {
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return binary_op<subtract_<CGAL::Epeck::FT>>(other);
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}
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virtual OpaqueNumber* operator*(OpaqueNumber* other) const {
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return binary_op<multiply_<CGAL::Epeck::FT>>(other);
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}
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virtual OpaqueNumber* operator/(OpaqueNumber* other) const {
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return binary_op<divide_<CGAL::Epeck::FT>>(other);
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}
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virtual bool operator==(OpaqueNumber* other) const {
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return binary_op_bool<equals_<CGAL::Epeck::FT>>(other);
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}
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virtual bool operator<(OpaqueNumber* other) const {
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return binary_op_bool<less_than_<CGAL::Epeck::FT>>(other);
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}
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virtual OpaqueNumber* operator-() const {
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return unary_op<negate_<CGAL::Epeck::FT>>();
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}
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};
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#endif
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class CgalShape : public IfcGeom::ConversionResultShape {
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private:
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mutable boost::optional<cgal_shape_t> shape_;
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#ifndef IFOPSH_SIMPLE_KERNEL
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mutable boost::optional<CGAL::Nef_polyhedron_3<Kernel_>> nef_;
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#endif
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public:
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CgalShape(const cgal_shape_t& shape) {
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shape_ = shape;
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}
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#ifndef IFOPSH_SIMPLE_KERNEL
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CgalShape(const CGAL::Nef_polyhedron_3<Kernel_>& shape) {
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nef_ = shape;
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}
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#endif
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#ifndef IFOPSH_SIMPLE_KERNEL
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void to_poly() const {
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if (!shape_) {
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shape_.emplace();
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nef_->convert_to_polyhedron(*shape_);
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}
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}
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void to_nef() const {
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if (!nef_) {
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nef_.emplace(*shape_);
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}
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}
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operator const CGAL::Nef_polyhedron_3<Kernel_>& () const { to_nef(); return *nef_; }
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const CGAL::Nef_polyhedron_3<Kernel_>& nef() const { to_nef(); return *nef_; }
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#else
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// noop on simple kernel
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void to_poly() const {}
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#endif
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operator const cgal_shape_t& () const { to_poly(); return *shape_; }
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const cgal_shape_t& poly() const { to_poly(); return *shape_; }
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virtual void Triangulate(const IfcGeom::IteratorSettings& settings, const ifcopenshell::geometry::taxonomy::matrix4& place, IfcGeom::Representation::Triangulation* t, int surface_style_id) const;
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virtual void Serialize(const ifcopenshell::geometry::taxonomy::matrix4& place, std::string&) const;
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virtual IfcGeom::ConversionResultShape* clone() const {
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return new CgalShape(shape_);
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return new CgalShape(*shape_);
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}
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virtual bool is_manifold() const {
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throw std::runtime_error("Not implemented");
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}
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virtual bool is_manifold() const;
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virtual double bounding_box(void*&) const;
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@@ -114,10 +222,91 @@ namespace ifcopenshell { namespace geometry {
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virtual int surface_genus() const;
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private:
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cgal_shape_t shape_;
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virtual int num_edges() const;
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virtual int num_faces() const;
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// @todo this must be something with a virtual dtor so that we can delete it.
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virtual std::pair<OpaqueCoordinate<3>, OpaqueCoordinate<3>> bounding_box() const;
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virtual std::shared_ptr<OpaqueNumber> length();
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virtual std::shared_ptr<OpaqueNumber> area();
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virtual std::shared_ptr<OpaqueNumber> volume();
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virtual OpaqueCoordinate<3> position();
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virtual OpaqueCoordinate<3> axis();
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virtual OpaqueCoordinate<4> plane_equation();
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virtual std::vector<ConversionResultShape*> convex_decomposition();
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virtual ConversionResultShape* halfspaces();
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virtual ConversionResultShape* solid();
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virtual ConversionResultShape* box();
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virtual std::vector<ConversionResultShape*> edges();
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virtual std::vector<ConversionResultShape*> facets();
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virtual ConversionResultShape* add(ConversionResultShape*);
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virtual ConversionResultShape* subtract(ConversionResultShape*);
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virtual ConversionResultShape* intersect(ConversionResultShape*);
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virtual void map(OpaqueCoordinate<4>& from, OpaqueCoordinate<4>& to);
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virtual ConversionResultShape* moved(ifcopenshell::geometry::taxonomy::matrix4::ptr) const;
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};
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#ifndef IFOPSH_SIMPLE_KERNEL
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class CgalShapeHalfSpaceDecomposition : public IfcGeom::ConversionResultShape {
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private:
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std::unique_ptr<halfspace_tree<Kernel_>> shape_;
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std::list<CGAL::Plane_3<Kernel_>> planes_;
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public:
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CgalShapeHalfSpaceDecomposition(const CGAL::Nef_polyhedron_3<Kernel_>& shape) {
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auto shape_copy = shape;
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shape_ = std::move(build_halfspace_tree_decomposed(shape_copy, planes_));
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}
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CgalShapeHalfSpaceDecomposition(const CGAL::Plane_3<Kernel_>& shape) {
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shape_.reset(new halfspace_tree_plane<Kernel_>(shape));
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planes_.push_back(shape);
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}
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virtual void Triangulate(const IfcGeom::IteratorSettings& settings, const ifcopenshell::geometry::taxonomy::matrix4& place, IfcGeom::Representation::Triangulation* t, int surface_style_id) const;
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virtual void Serialize(const ifcopenshell::geometry::taxonomy::matrix4& place, std::string&) const;
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virtual int surface_genus() const;
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virtual bool is_manifold() const;
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virtual int num_vertices() const;
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virtual int num_edges() const;
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virtual int num_faces() const;
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virtual double bounding_box(void*&) const;
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// @todo this must be something with a virtual dtor so that we can delete it.
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virtual std::pair<OpaqueCoordinate<3>, OpaqueCoordinate<3>> bounding_box() const;
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virtual void set_box(void* b);
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virtual std::shared_ptr<OpaqueNumber> length();
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virtual std::shared_ptr<OpaqueNumber> area();
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virtual std::shared_ptr<OpaqueNumber> volume();
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virtual OpaqueCoordinate<3> position();
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virtual OpaqueCoordinate<3> axis();
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virtual OpaqueCoordinate<4> plane_equation();
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virtual std::vector<ConversionResultShape*> convex_decomposition();
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virtual ConversionResultShape* halfspaces();
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virtual ConversionResultShape* solid();
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virtual ConversionResultShape* box();
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virtual std::vector<ConversionResultShape*> edges();
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virtual std::vector<ConversionResultShape*> facets();
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virtual ConversionResultShape* add(ConversionResultShape*);
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virtual ConversionResultShape* subtract(ConversionResultShape*);
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virtual ConversionResultShape* intersect(ConversionResultShape*);
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virtual void map(OpaqueCoordinate<4>& from, OpaqueCoordinate<4>& to);
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virtual ConversionResultShape* moved(ifcopenshell::geometry::taxonomy::matrix4::ptr) const;
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};
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#endif
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}}
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#endif
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