GeoPackage Binary geometry encoding and decoding (ISO WKB with GP header). More...

#include <vector>
#include <cstdint>
#include <cstring>
#include <stdexcept>

Include dependency graph for GpkgGeometry.hpp:

This graph shows which files directly or indirectly include this file:

Classes
struct	openswmm::gpkg::DecodedPoint

struct	openswmm::gpkg::DecodedLinestring

struct	openswmm::gpkg::DecodedMultipolygon

Enumerations
enum	openswmm::gpkg::WkbType : uint32_t { openswmm::gpkg::WKB_POINT = 1 , openswmm::gpkg::WKB_LINESTRING = 2 , openswmm::gpkg::WKB_POLYGON = 3 , openswmm::gpkg::WKB_MULTIPOLYGON = 6 }

Functions
void	openswmm::gpkg::detail::append_u8 (std::vector< uint8_t > &buf, uint8_t v)

void	openswmm::gpkg::detail::append_u32 (std::vector< uint8_t > &buf, uint32_t v)

void	openswmm::gpkg::detail::append_f64 (std::vector< uint8_t > &buf, double v)

void	openswmm::gpkg::detail::write_gp_header (std::vector< uint8_t > &buf, int32_t srs_id, double min_x, double min_y, double max_x, double max_y)

void	openswmm::gpkg::detail::write_gp_header_empty (std::vector< uint8_t > &buf, int32_t srs_id)

std::vector< uint8_t >	openswmm::gpkg::encode_point (double x, double y, int32_t srs_id)
	Encode a POINT geometry in GeoPackage Binary format.

std::vector< uint8_t >	openswmm::gpkg::encode_linestring (const std::vector< double > &xs, const std::vector< double > &ys, int32_t srs_id)
	Encode a LINESTRING geometry in GeoPackage Binary format.

std::vector< uint8_t >	openswmm::gpkg::encode_multipolygon (const std::vector< double > &xs, const std::vector< double > &ys, int32_t srs_id)
	Encode a MULTIPOLYGON geometry (single polygon, single ring) in GeoPackage Binary format.

size_t	openswmm::gpkg::detail::parse_gp_header (const uint8_t *data, size_t size, int32_t &srs_id)

template<typename T >
T	openswmm::gpkg::detail::read_val (const uint8_t *data, size_t &offset)

DecodedPoint	openswmm::gpkg::decode_point (const std::vector< uint8_t > &blob)

DecodedLinestring	openswmm::gpkg::decode_linestring (const std::vector< uint8_t > &blob)

DecodedMultipolygon	openswmm::gpkg::decode_multipolygon (const std::vector< uint8_t > &blob)

Variables
constexpr uint8_t	openswmm::gpkg::WKB_LITTLE_ENDIAN = 1

constexpr uint8_t	openswmm::gpkg::GP_MAGIC_1 = 0x47

constexpr uint8_t	openswmm::gpkg::GP_MAGIC_2 = 0x50

Detailed Description

GeoPackage Binary geometry encoding and decoding (ISO WKB with GP header).

Encodes/decodes POINT, LINESTRING, and MULTIPOLYGON geometries in the GeoPackage Standard Binary format (Annex F of the spec).

GP Binary layout: [Magic: 2B "GP"] [Version: 1B] [Flags: 1B] [SRS ID: 4B] [Envelope: 0-64B depending on flags] [ISO WKB payload]

Classes