Crate egml_core 

Core primitives and operations for processing GML (Geography Markup Language) data.

egml-core implements a subset of ISO 19136 GML 3.2 focused on 3-D geometry. It provides the geometry model, bounding-box computations, triangulation, and distance queries needed to work with GML-based datasets.

Module overview

Module	Contents
model::base	Root GML types: AbstractGml, Id
model::basic_types	Primitive GML scalar types: Code, Measure
model::feature	Abstract GML feature class
model::geometry	Full geometry hierarchy: primitives, aggregates, and complexes
util::plane	Plane in R³ — point + unit normal
util::triangulate	Earcut-based polygon triangulation

Geometry hierarchy

AbstractGeometry
└── AbstractGeometricPrimitive
    ├── Point
    ├── AbstractCurve  →  LineString
    ├── AbstractSurface  →  Surface, TriangulatedSurface, Polygon, Triangle
    └── AbstractSolid  →  Solid
AbstractGeometricAggregate
    ├── MultiCurve
    └── MultiSurface
CompositeSurface

Quick-start example

use egml_core::model::geometry::DirectPosition;
use egml_core::model::geometry::primitives::LinearRing;
use egml_core::model::geometry::Envelope;

let pts = vec![
    DirectPosition::new(0.0, 0.0, 0.0).unwrap(),
    DirectPosition::new(1.0, 0.0, 0.0).unwrap(),
    DirectPosition::new(1.0, 1.0, 0.0).unwrap(),
    DirectPosition::new(0.0, 1.0, 0.0).unwrap(),
];
let ring = LinearRing::new(pts).unwrap();
let envelope = Envelope::from_points(ring.points()).unwrap();
assert!(envelope.size_x() > 0.0);

Modules

model

GML data model.

resolver

Reference resolution for gml:id/xlink:href targets.

util

Internal geometry utilities.

Macros

impl_abstract_curve_mut_traits

impl_abstract_curve_traits

impl_abstract_feature_mut_traits

impl_abstract_feature_traits

impl_abstract_geometric_aggregate_mut_traits

impl_abstract_geometric_aggregate_traits

impl_abstract_geometric_primitive_mut_traits

impl_abstract_geometric_primitive_traits

impl_abstract_geometry_mut_traits

impl_abstract_geometry_traits

impl_abstract_gml_mut_traits

impl_abstract_gml_traits

impl_abstract_ring_mut_traits

impl_abstract_ring_traits

impl_abstract_solid_mut_traits

impl_abstract_solid_traits

impl_abstract_surface_mut_traits

impl_abstract_surface_patch_mut_traits

impl_abstract_surface_patch_traits

impl_abstract_surface_traits

impl_from_for_abstract_curve_kind

impl_from_for_abstract_curve_kind_ref

Implements From<&$type> for AbstractCurveKindRef and forwards to the parent AbstractGeometricPrimitiveKindRef.

impl_from_for_abstract_geometric_aggregate_kind

impl_from_for_abstract_geometric_aggregate_kind_ref

Implements From<&$type> for AbstractGeometricAggregateKindRef and forwards to the parent AbstractGeometryKindRef level so the conversion is available all the way up the chain.

impl_from_for_abstract_geometric_primitive_kind

impl_from_for_abstract_geometric_primitive_kind_ref

Implements From<&$type> for AbstractGeometricPrimitiveKindRef and forwards to the parent AbstractGeometryKindRef.

impl_from_for_abstract_geometry_kind

impl_from_for_abstract_geometry_kind_ref

Implements From<&$type> for AbstractGeometryKindRef. This is the root of the geometry ref hierarchy, so — unlike the deeper levels — it does not forward to a parent macro.

impl_from_for_abstract_gml_kind

impl_from_for_abstract_object_kind

impl_from_for_abstract_ring_kind

impl_from_for_abstract_ring_kind_ref

Implements From<&$type> for AbstractRingKindRef and forwards to the parent AbstractCurveKindRef.

impl_from_for_abstract_solid_kind

impl_from_for_abstract_solid_kind_ref

Implements From<&$type> for AbstractSolidKindRef and forwards to the parent AbstractGeometricPrimitiveKindRef.

impl_from_for_abstract_surface_kind

impl_from_for_abstract_surface_kind_ref

Implements From<&$type> for AbstractSurfaceKindRef and forwards to the parent AbstractGeometricPrimitiveKindRef.

impl_from_for_abstract_surface_patch_kind

impl_from_for_surface_kind

impl_from_for_surface_kind_ref

Implements From<&$type> for SurfaceKindRef and forwards to the parent AbstractSurfaceKindRef.

impl_has_geometry_type

impl_measure_type

Implements the common constructor, accessors, and Measure conversions shared by all named measure types.

impl_surface_mut_traits

impl_surface_traits

impl_try_from_abstract_curve_kind_ref_for_enum

Implements TryFrom<AbstractCurveKindRef> for an intermediate $EnumRef and forwards the downcast up to the parent level.

impl_try_from_abstract_geometric_primitive_kind_ref_for_enum

Implements TryFrom<AbstractGeometricPrimitiveKindRef> for an intermediate $EnumRef and forwards the downcast up to the parent level.

impl_try_from_abstract_geometry_kind_ref_for_enum

Implements TryFrom<AbstractGeometryKindRef> for an intermediate $EnumRef, downcasting to a nested ref enum (e.g. AbstractSurfaceKindRef).

impl_try_from_abstract_surface_kind_ref_for_enum

Implements TryFrom<AbstractSurfaceKindRef> for an intermediate $EnumRef and forwards the downcast up to the parent level.

impl_try_from_for_abstract_curve_kind

impl_try_from_for_abstract_curve_kind_ref

Implements TryFrom<AbstractCurveKindRef> for &$type and forwards the downcast up to the parent level.

impl_try_from_for_abstract_geometric_aggregate_kind

impl_try_from_for_abstract_geometric_aggregate_kind_ref

Implements TryFrom<AbstractGeometricAggregateKindRef> for &$type and forwards the downcast up to the parent level.

impl_try_from_for_abstract_geometric_primitive_kind

impl_try_from_for_abstract_geometric_primitive_kind_ref

Implements TryFrom<AbstractGeometricPrimitiveKindRef> for &$type and forwards the downcast up to the parent level.

impl_try_from_for_abstract_geometry_kind

impl_try_from_for_abstract_geometry_kind_ref

Implements TryFrom<AbstractGeometryKindRef> for &$type, downcasting to a concrete leaf geometry.

impl_try_from_for_abstract_gml_kind

impl_try_from_for_abstract_object_kind

impl_try_from_for_abstract_ring_kind

impl_try_from_for_abstract_ring_kind_ref

Implements TryFrom<AbstractRingKindRef> for &$type and forwards the downcast up to the parent level.

impl_try_from_for_abstract_solid_kind

impl_try_from_for_abstract_solid_kind_ref

Implements TryFrom<AbstractSolidKindRef> for &$type and forwards the downcast up to the parent level.

impl_try_from_for_abstract_surface_kind

impl_try_from_for_abstract_surface_kind_ref

Implements TryFrom<AbstractSurfaceKindRef> for &$type and forwards the downcast up to the parent level.

impl_try_from_for_abstract_surface_patch_kind

impl_try_from_for_surface_kind

impl_try_from_for_surface_kind_ref

Implements TryFrom<SurfaceKindRef> for &$type and forwards the downcast up to the parent level.

Enums

Error

Errors returned by egml-core operations.