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IfcOpenShell/src/ifcgeom/ConversionSettings.h
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#ifndef CONVERSIONSETTINGS_H
#define CONVERSIONSETTINGS_H
#include <array>
#include <limits>
#include <string>
#include <iostream>
#include <string>
#include <map>
#include <tuple>
#include <type_traits>
#include <boost/program_options.hpp>
#include <boost/optional.hpp>
#include <boost/variant.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/optional/optional_io.hpp>
#include "ifc_geom_api.h"
#ifndef SWIG
namespace po = boost::program_options;
namespace std {
istream& operator>>(istream& in, set<int>& ints);
}
#endif
namespace ifcopenshell {
namespace geometry {
inline namespace settings {
#ifndef SWIG
template <typename T, typename U = int>
struct HasDefault : std::false_type { };
template <typename T>
struct HasDefault<T, decltype((void)T::defaultvalue, 0)> : std::true_type { };
#endif
template <typename Derived, typename T>
struct SettingBase {
typedef T base_type;
boost::optional<T> value;
SettingBase() {}
void defineOption(po::options_description& desc) {
auto apply_default = [](auto x) {
if constexpr (HasDefault<Derived>()) {
return x->default_value(Derived::defaultvalue);
} else {
return x;
}
};
if constexpr (std::is_same_v<T, bool>) {
// @todo bool_switch doesn't work with optional unfortunately...
value.emplace();
desc.add_options()(Derived::name, apply_default(po::bool_switch(&*value)), Derived::description);
} else {
desc.add_options()(Derived::name, apply_default(po::value(&value)), Derived::description);
}
}
T get() const {
if (value) {
return value.get();
}
if constexpr (HasDefault<Derived>()) {
return Derived::defaultvalue;
}
throw std::runtime_error("Setting not set");
}
bool has() const {
// @todo this is not reliable, better use vmap[...].defaulted()
return !!value;
}
};
// These are the old geometry settings values from the kernel
struct MesherLinearDeflection : public SettingBase<MesherLinearDeflection, double> {
static constexpr const char* const name = "mesher-linear-deflection";
static constexpr const char* const description = "Specifies the linear deflection of the mesher. Controls the detail of curved surfaces in triangulated output formats.";
static constexpr double defaultvalue = 0.001;
};
struct MesherAngularDeflection : public SettingBase<MesherAngularDeflection, double> {
static constexpr const char* const name = "mesher-angular-deflection";
static constexpr const char* const description = "Sets the angular tolerance of the mesher in radians 0.5 by default if not specified.";
static constexpr double defaultvalue = 0.5;
};
struct ReorientShells : public SettingBase<ReorientShells, bool> {
static constexpr const char* const name = "reorient-shells";
static constexpr const char* const description = "Specifies whether to orient the faces of IfcConnectedFaceSets. "
"This is a potentially time consuming operation, but guarantees a "
"consistent orientation of surface normals, even if the faces are not "
"properly oriented in the IFC file.";
static constexpr bool defaultvalue = false;
};
struct LengthUnit : public SettingBase<LengthUnit, double> {
static constexpr const char* const name = "length-unit";
static constexpr const char* const description = "";
static constexpr double defaultvalue = 1.0;
};
struct PlaneUnit : public SettingBase<PlaneUnit, double> {
static constexpr const char* const name = "angle-unit";
static constexpr const char* const description = "";
static constexpr double defaultvalue = 1.0;
};
struct Precision : public SettingBase<Precision, double> {
static constexpr const char* const name = "precision";
static constexpr const char* const description = "";
static constexpr double defaultvalue = 0.00001;
};
struct IncludeCurves : public SettingBase<IncludeCurves, bool> {
static constexpr const char* const name = "plan";
static constexpr const char* const description = "Specifies whether to include curves in the output result. Typically "
"these are representations of type Plan or Axis. Excluded by default.";
static constexpr bool defaultvalue = false;
};
struct IncludeSurfaces : public SettingBase<IncludeSurfaces, bool> {
static constexpr const char* const name = "model";
static constexpr const char* const description = "Specifies whether to include surfaces and solids in the output result. "
"Typically these are representations of type Body or Facetation. "
"Included by default.";
static constexpr bool defaultvalue = true;
};
struct LayersetFirst : public SettingBase<LayersetFirst, bool> {
static constexpr const char* const name = "layerset-first";
static constexpr const char* const description = "Assigns the first layer material of the layerset "
"to the complete product.";
static constexpr bool defaultvalue = false;
};
struct DisableBooleanResult : public SettingBase<DisableBooleanResult, bool> {
static constexpr const char* const name = "disable-boolean-result";
static constexpr const char* const description = "Specifies whether to disable the boolean operation within representations "
"such as clippings by means of IfcBooleanResult and subtypes";
static constexpr bool defaultvalue = false;
};
struct NoWireIntersectionCheck : public SettingBase<NoWireIntersectionCheck, bool> {
static constexpr const char* const name = "no-wire-intersection-check";
static constexpr const char* const description = "Skip wire intersection check.";
static constexpr bool defaultvalue = false;
};
struct NoWireIntersectionTolerance : public SettingBase<NoWireIntersectionTolerance, double> {
static constexpr const char* const name = "no-wire-intersection-tolerance";
static constexpr const char* const description = "Set wire intersection tolerance to 0.";
static constexpr bool defaultvalue = false;
};
struct PrecisionFactor : public SettingBase<PrecisionFactor, double> {
static constexpr const char* const name = "precision-factor";
static constexpr const char* const description = "Option to increase linear tolerance for more permissive edge curves and fewer artifacts after "
"boolean operations at the expense of geometric detail "
"due to vertex collapsing and wire intersection fuzziness.";
static constexpr double defaultvalue = 1.0;
};
struct DebugBooleanOperations : public SettingBase<DebugBooleanOperations, double> {
static constexpr const char* const name = "debug-boolean";
static constexpr const char* const description = "";
static constexpr bool defaultvalue = false;
};
struct BooleanAttempt2d : public SettingBase<BooleanAttempt2d, double> {
static constexpr const char* const name = "boolean-attempt-2d";
static constexpr const char* const description = "Do not attempt to process boolean subtractions in 2D.";
static constexpr bool defaultvalue = true;
};
// These are the old IteratorSettings
struct WeldVertices : public SettingBase<WeldVertices, bool> {
static constexpr const char* const name = "weld-vertices";
static constexpr const char* const description = "Specifies whether vertices are welded, meaning that the coordinates "
"vector will only contain unique xyz-triplets. This results in a "
"manifold mesh which is useful for modelling applications, but might "
"result in unwanted shading artefacts in rendering applications.";
static constexpr bool defaultvalue = true;
};
struct UseWorldCoords : public SettingBase<UseWorldCoords, bool> {
static constexpr const char* const name = "use-world-coords";
static constexpr const char* const description = "Specifies whether to apply the local placements of building elements "
"directly to the coordinates of the representation mesh rather than "
"to represent the local placement in the 4x3 matrix, which will in that "
"case be the identity matrix.";
static constexpr bool defaultvalue = false;
};
struct ConvertBackUnits : public SettingBase<ConvertBackUnits, bool> {
static constexpr const char* const name = "convert-back-units";
static constexpr const char* const description = "Specifies whether to convert back geometrical output back to the "
"unit of measure in which it is defined in the IFC file. Default is "
"to use meters.";
static constexpr bool defaultvalue = false;
};
struct ContextIds : public SettingBase<ContextIds, std::set<int>> {
static constexpr const char* const name = "context-ids";
static constexpr const char* const description = "";
};
enum IteratorOutputOptions {
TRIANGULATED,
NATIVE,
SERIALIZED
};
std::istream& operator>>(std::istream& in, IteratorOutputOptions& ioo);
struct IteratorOutput : public SettingBase<IteratorOutput, IteratorOutputOptions> {
static constexpr const char* const name = "iterator-output";
static constexpr const char* const description = "";
static constexpr IteratorOutputOptions defaultvalue = TRIANGULATED;
};
struct DisableOpeningSubtractions : public SettingBase<DisableOpeningSubtractions, bool> {
static constexpr const char* const name = "disable-opening-subtractions";
static constexpr const char* const description = "Specifies whether to disable the boolean subtraction of "
"IfcOpeningElement Representations from their RelatingElements.";
static constexpr bool defaultvalue = false;
};
struct ApplyDefaultMaterials : public SettingBase<ApplyDefaultMaterials, bool> {
static constexpr const char* const name = "apply-default-materials";
static constexpr const char* const description = "";
static constexpr bool defaultvalue = true;
};
struct DontEmitNormals : public SettingBase<DontEmitNormals, bool> {
static constexpr const char* const name = "no-normals";
static constexpr const char* const description = "Disables computation of normals.Saves time and file size and is useful "
"in instances where you're going to recompute normals for the exported "
"model in other modelling application in any case.";
static constexpr bool defaultvalue = false;
};
struct GenerateUvs : public SettingBase<GenerateUvs, bool> {
static constexpr const char* const name = "generate-uvs";
static constexpr const char* const description = "Generates UVs (texture coordinates) by using simple box projection. Requires normals. "
"Not guaranteed to work properly if used with --weld-vertices.";
static constexpr bool defaultvalue = false;
};
struct ApplyLayerSets : public SettingBase<ApplyLayerSets, bool> {
static constexpr const char* const name = "enable-layerset-slicing";
static constexpr const char* const description = "Specifies whether to enable the slicing of products according "
"to their associated IfcMaterialLayerSet.";
static constexpr bool defaultvalue = false;
};
struct UseElementHierarchy : public SettingBase<UseElementHierarchy, bool> {
static constexpr const char* const name = "element-hierarchy";
static constexpr const char* const description = "Assign the elements using their e.g IfcBuildingStorey parent."
"Applicable to DAE output.";
static constexpr bool defaultvalue = false;
};
struct ValidateQuantities : public SettingBase<ValidateQuantities, bool> {
static constexpr const char* const name = "validate";
static constexpr const char* const description = "Checks whether geometrical output conforms to the included explicit quantities.";
static constexpr bool defaultvalue = false;
};
struct EdgeArrows : public SettingBase<EdgeArrows, bool> {
static constexpr const char* const name = "edge-arrows";
static constexpr const char* const description = "Adds arrow heads to edge segments to signify edge direction";
static constexpr bool defaultvalue = false;
};
struct SiteLocalPlacement : public SettingBase<SiteLocalPlacement, bool> {
static constexpr const char* const name = "site-local-placement";
static constexpr const char* const description = "Place elements locally in the IfcSite coordinate system, instead of placing "
"them in the IFC global coords. Applicable for OBJ, DAE, and STP output.";
static constexpr bool defaultvalue = false;
};
struct BuildingLocalPlacement : public SettingBase<BuildingLocalPlacement, bool> {
static constexpr const char* const name = "building-local-placement";
static constexpr const char* const description = "Similar to --site-local-placement, but placing elements in locally in the parent IfcBuilding coord system";
static constexpr bool defaultvalue = false;
};
struct ForceSpaceTransparency : public SettingBase<ForceSpaceTransparency, double> {
static constexpr const char* const name = "force-space-transparency";
static constexpr const char* const description = "Overrides transparency of spaces in geometry output.";
};
struct CircleSegments : public SettingBase<CircleSegments, int> {
static constexpr const char* const name = "circle-segments";
static constexpr const char* const description = "Number of segments to approximate full circles in CGAL kernel.";
static constexpr int defaultvalue = 16;
};
enum PiecewiseStepMethod {
MAXSTEPSIZE,
MINSTEPS };
std::istream& operator>>(std::istream& in, PiecewiseStepMethod& ioo);
struct PiecewiseStepType : public SettingBase<PiecewiseStepType, PiecewiseStepMethod> {
static constexpr const char* const name = "piecewise-step-type";
static constexpr const char* const description = "Indicates the method used for defining step size when evaluating piecewise curves. Provides interpretation of piecewise-step-param";
static constexpr PiecewiseStepMethod defaultvalue = MAXSTEPSIZE;
};
struct PiecewiseStepParam : public SettingBase<PiecewiseStepParam, double> {
static constexpr const char* const name = "piecewise-step-param";
static constexpr const char* const description = "Indicates the parameter value for defining step size when evaluating piecewise curves.";
static constexpr double defaultvalue = 0.5; // ceiling of this value is used when PiecewiseStepMethod is MinSteps
};
}
template <typename settings_t>
class IFC_GEOM_API SettingsContainer {
public:
typedef boost::variant<bool, int, double, std::string, std::set<int>, IteratorOutputOptions, PiecewiseStepMethod> value_variant_t;
private:
settings_t settings;
template <std::size_t Index>
void define_options_(po::options_description& desc) {
std::get<Index>(settings).defineOption(desc);
if constexpr (Index + 1 < std::tuple_size_v<settings_t>) {
define_options_<Index + 1>(desc);
}
}
template <std::size_t Index>
value_variant_t get_option_(const std::string& name) const {
if (std::tuple_element_t<Index, settings_t>::name == name) {
return std::get<Index>(settings).get();
}
if constexpr (Index + 1 < std::tuple_size_v<settings_t>) {
return get_option_<Index + 1>(name);
} else {
throw std::runtime_error("Setting not available");
}
}
template <std::size_t Index>
void set_option_(const std::string& name, const value_variant_t& val) {
if (std::tuple_element_t<Index, settings_t>::name == name) {
std::get<Index>(settings).value = boost::get<typename std::tuple_element_t<Index, settings_t>::base_type>(val);
} else if constexpr (Index + 1 < std::tuple_size_v<settings_t>) {
set_option_<Index + 1>(name, val);
} else {
throw std::runtime_error("Setting not available");
}
}
template <std::size_t Index>
void get_setting_names_(std::vector<std::string>& vec) const {
vec.push_back(std::tuple_element_t<Index, settings_t>::name);
if constexpr (Index + 1 < std::tuple_size_v<settings_t>) {
return get_setting_names_<Index + 1>(vec);
}
}
public:
typedef settings_t settings_tuple;
void define_options(po::options_description& desc) {
define_options_<0>(desc);
}
template <typename T>
const T& get() const {
return std::get<T>(settings);
}
template <typename T>
T& get() {
return std::get<T>(settings);
}
template <typename T>
void set(T& v) {
std::get<T>(settings) = v;
}
value_variant_t get(const std::string& name) const {
return get_option_<0>(name);
}
void set(const std::string& name, value_variant_t val) {
set_option_<0>(name, val);
}
std::vector<std::string> setting_names() const {
std::vector<std::string> r;
get_setting_names_<0>(r);
return r;
}
};
class IFC_GEOM_API Settings : public SettingsContainer<
std::tuple<MesherLinearDeflection, MesherAngularDeflection, ReorientShells, LengthUnit, PlaneUnit, Precision, IncludeCurves, IncludeSurfaces, LayersetFirst, DisableBooleanResult, NoWireIntersectionCheck, NoWireIntersectionTolerance, PrecisionFactor, DebugBooleanOperations, BooleanAttempt2d, WeldVertices, UseWorldCoords, ConvertBackUnits, ContextIds, IteratorOutput, DisableOpeningSubtractions, ApplyDefaultMaterials, DontEmitNormals, GenerateUvs, ApplyLayerSets, UseElementHierarchy, ValidateQuantities, EdgeArrows, BuildingLocalPlacement, SiteLocalPlacement, ForceSpaceTransparency, CircleSegments, PiecewiseStepType, PiecewiseStepParam>
>
{};
}
}
// namespace ifcopenshell {
// namespace geometry {
//
// class IFC_GEOM_API ConversionSettings {
// public:
// // Tolerances and settings for various geometrical operations:
// enum GeomValue {
// //
// // Default: 0.001m / 1mm
// GV_DEFLECTION_TOLERANCE,
//
// // The length unit used the creation of TopoDS_Shapes, primarily affects the
// // interpretation of IfcCartesianPoints and IfcVector magnitudes
// // DefaultL 1.0
// GV_LENGTH_UNIT,
// // The plane angle unit used for the creation of TopoDS_Shapes, primarily affects
// // the interpretation of IfcParamaterValues of IfcTrimmedCurves
// // Default: -1.0 (= not set, fist try degrees, then radians)
// GV_PLANEANGLE_UNIT,
// // The precision used in boolean operations, setting this value too low results
// // in artefacts and potentially modelling failures
// // Default: 0.00001 (obtained from IfcGeometricRepresentationContext if available)
// GV_PRECISION,
// // Whether to process shapes of type Face or higher (1) Wire or lower (-1) or all (0)
// GV_DIMENSIONALITY,
// GV_LAYERSET_FIRST,
// GV_DISABLE_BOOLEAN_RESULT,
// GV_NO_WIRE_INTERSECTION_CHECK,
// GV_PRECISION_FACTOR,
// GV_NO_WIRE_INTERSECTION_TOLERANCE,
// GV_DEBUG_BOOLEAN,
// GV_BOOLEAN_ATTEMPT_2D,
// NUM_SETTINGS
// };
//
// void setValue(GeomValue var, double value);
//
// double getValue(GeomValue var) const;
//
// private:
// std::array<double, NUM_SETTINGS> values_ = {
// /* deflection_tolerance = */ 0.001,
// // @todo make sure these 'read-only' variables work.
// /* minimal_face_area = */ std::numeric_limits<double>::quiet_NaN(),
// /* max_faces_to_orient = */ -1.0,
// /* ifc_length_unit = */ 1.0,
// /* ifc_planeangle_unit = */ -1.0,
// /* modelling_precision = */ 0.00001,
// /* dimensionality = */ 1.,
// /* layerset_first = */ -1.,
// /* disable_boolean_result = */ -1.
// /* no_wire_intersection_check = */ -1.,
// /* precision_factor = */ 10.,
// /* no_wire_intersection_tolerance = */ -1.,
// /* boolean_debug_setting = */ -1.,
// /* boolean_attempt_2d = */ 1.
// };
// };
// }
// }
// @todo find a place
namespace IfcGeom {
class IFC_GEOM_API geometry_exception : public std::exception {
protected:
std::string message;
public:
geometry_exception(const std::string& m)
: message(m) {}
virtual ~geometry_exception() throw () {}
virtual const char* what() const throw() {
return message.c_str();
}
};
class IFC_GEOM_API too_many_faces_exception : public geometry_exception {
public:
too_many_faces_exception()
: geometry_exception("Too many faces for operation") {}
};
}
#endif