Crate oxirs_geosparql 

OxiRS GeoSPARQL

Status: Production Release (v0.1.0) Stability: Public APIs are stable. Production-ready with comprehensive testing.

GeoSPARQL implementation for spatial data and queries in RDF/SPARQL.

This crate provides:

• GeoSPARQL vocabulary and datatypes
• WKT (Well-Known Text) geometry parsing and serialization
• Simple Features topological relations (sfEquals, sfContains, sfIntersects, etc.)
• Geometric operations (buffer, convex hull, intersection, etc.)
• Geometric properties (dimension, SRID, isEmpty, etc.)
• Spatial indexing with R-tree for efficient queries
• SIMD-accelerated distance calculations (2-4x speedup)
• Parallel batch processing for large datasets

Example

use oxirs_geosparql::geometry::Geometry;
use oxirs_geosparql::functions::simple_features;

// Parse WKT geometries
let point = Geometry::from_wkt("POINT(1.0 2.0)").unwrap();
let polygon = Geometry::from_wkt("POLYGON((0 0, 4 0, 4 4, 0 4, 0 0))").unwrap();

// Test spatial relations
let contains = simple_features::sf_contains(&polygon, &point).unwrap();
assert!(contains);

GeoSPARQL Compliance

This implementation follows the OGC GeoSPARQL 1.0/1.1 specification:

• Core: Geometry classes and properties
• Topology Vocabulary: Simple Features relations
• Geometry Extension: WKT and GML support
• Query Rewrite Extension: Spatial indexing

Features

• wkt-support (default): WKT parsing and serialization
• geojson-support: GeoJSON support
• geos-backend: Use GEOS library for geometric operations
• proj-support: Coordinate transformation support
• parallel: Parallel processing for large datasets

Re-exports

pub use error::GeoSparqlError;

pub use error::Result;

pub use geometry::Crs;

pub use geometry::Geometry;

pub use index::SpatialIndex;

pub use performance::BatchProcessor;

Modules

analysis

Advanced Spatial Analysis

error

Error types for GeoSPARQL operations

functions

GeoSPARQL filter and property functions

geometry

Geometry types and operations

index

Spatial indexing for efficient GeoSPARQL queries

performance

Performance utilities for large-scale geometric operations

sparql_integration

SPARQL Function Integration

validation

Geometry validation and quality checks

vocabulary

GeoSPARQL vocabulary and namespace definitions

Macros

profile_scope

Macro for convenient profiling scope creation

Structs

GeoSparqlRegistry

GeoSPARQL function registry

Functions

init

Initialize GeoSPARQL support in a SPARQL engine