Struct GeometryColumnDef 

pub struct GeometryColumnDef {
    pub table_name: String,
    pub column_name: String,
    pub geometry_type_name: String,
    pub srs_id: i32,
    pub has_z: bool,
    pub has_m: bool,
}

Describes a single geometry column registered in gpkg_geometry_columns.

This mirrors one row of that system table, with the z/m flags decoded into bool fields for ergonomic use.

Fields

table_name: String

Name of the feature table that owns this geometry column.

column_name: String

Name of the column inside that feature table (e.g. "geom").

geometry_type_name: String

OGC geometry type name stored in gpkg_geometry_columns (e.g. "POINT", "MULTIPOLYGON").

srs_id: i32

Spatial reference system identifier.

has_z: bool

true when the z coordinate rule is 1 (mandatory) or 2 (optional).

has_m: bool

true when the m coordinate rule is 1 (mandatory) or 2 (optional).

Implementations

impl GeometryColumnDef

pub fn from_raw( table_name: impl Into<String>, column_name: impl Into<String>, geometry_type_name: impl Into<String>, srs_id: i32, z_flag: u8, m_flag: u8, ) -> Self

Construct a new GeometryColumnDef from raw field values.

z_flag and m_flag are the raw integer values from the gpkg_geometry_columns table: 0 = prohibited, 1 = mandatory, 2 = optional.

pub fn z_flag(&self) -> u8

Return the raw z flag value suitable for writing to gpkg_geometry_columns.

Maps has_z = true → 2 (optional) and has_z = false → 0 (prohibited).

pub fn m_flag(&self) -> u8

Return the raw m flag value suitable for writing to gpkg_geometry_columns.

Maps has_m = true → 2 (optional) and has_m = false → 0 (prohibited).

Trait Implementations

impl Clone for GeometryColumnDef

fn clone(&self) -> GeometryColumnDef

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GeometryColumnDef

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for GeometryColumnDef

fn eq(&self, other: &GeometryColumnDef) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for GeometryColumnDef