geom_encoder.hpp File Reference

#include <fcb/geometry.hpp>
#include <nlohmann/json.hpp>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>

Go to the source code of this file.

Classes
struct	fcb::GMBoundaries
	Flattened geometry boundaries: a flat vertex-index list plus one count array per level of the dimensional hierarchy (rings-per-surface, surfaces-per-shell, shells-per-solid). More...
struct	fcb::GMSemantics
	Flattened semantics: surfaces is the CityJSON semantics.surfaces array, passed through verbatim (FlatBuffers SemanticObject encoding, including its "other" attributes, is M3's job). More...
struct	fcb::MaterialMapping
	One theme's material mapping. More...
struct	fcb::TextureMapping
	One theme's texture mapping. More...
struct	fcb::EncodedGeometry
	Everything one CityJSON geometry object flattens to. More...

Namespaces
namespace	fcb

Functions
GeometryKind	fcb::geometry_kind_from_name (const std::string &name)
	Maps a CityJSON geometry type string to GeometryKind.
GMBoundaries	fcb::encode_boundaries (GeometryKind kind, const nlohmann::ordered_json &boundaries)
	Flattens boundaries (nested CityJSON boundary arrays, straight off the JSON as parsed – no intermediate typed representation) at exactly the depth kind implies.
GMSemantics	fcb::encode_semantics (const nlohmann::ordered_json &semantics, const GMBoundaries &boundaries)
	Flattens semantics (the CityJSON semantics object: surfaces plus values), using boundaries's shell/solid counts to expand a null shell or solid into the right number of per-surface nulls (there is no wire encoding for a whole-null shell in semantics, unlike material).
std::vector< MaterialMapping >	fcb::encode_material (const nlohmann::ordered_json &material)
	Flattens material (the CityJSON geometry.material object: theme name -> {"value": N} / {"values": [...]} / {"values": null}).
std::vector< TextureMapping >	fcb::encode_texture (const nlohmann::ordered_json &texture)
	Flattens texture (the CityJSON geometry.texture object).
EncodedGeometry	fcb::encode (const nlohmann::ordered_json &geometry)
	Flattens one CityJSON geometry object – its boundaries and whatever semantics, material and texture it carries – into the FlatCityBuf arrays.