https://github.com/qoretechnologies/module-geos

Qore GEOS module - GEOS (Geometry Engine - Open Source) bindings for Qore
https://github.com/qoretechnologies/module-geos

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Qore GEOS module - GEOS (Geometry Engine - Open Source) bindings for Qore

• Host: GitHub
• URL: https://github.com/qoretechnologies/module-geos
• Owner: qoretechnologies
• License: mit
• Created: 2026-03-03T06:44:37.000Z (5 months ago)
• Default Branch: develop
• Last Pushed: 2026-03-03T15:38:13.000Z (5 months ago)
• Last Synced: 2026-03-03T19:55:19.173Z (5 months ago)
• Language: C++
• Size: 78.1 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • License: COPYING.MIT
  • Authors: AUTHORS

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README

          
Qore GEOS module (geos)

INTRODUCTION

------------

The Qore geos module provides bindings to the GEOS (Geometry Engine - Open Source)

C API for fast GIS data processing. GEOS provides spatial predicates, topology

operations, geometry validation, spatial indexing, and WKT/WKB serialization.

For more information about GEOS, see:

    https://libgeos.org

The module uses only the reentrant GEOS C API (_r variants) for thread safety.

Each thread lazily initializes its own GEOS context handle via GEOS_init_r().

Classes provided:

    - GEOSGeometry: Core geometry wrapper with spatial predicates, topology

      operations, distance calculations, and serialization

    - GEOSPreparedGeometry: Pre-indexed geometry for fast repeated spatial queries

    - GEOSSTRtree: STR-packed R-tree spatial index for envelope intersection queries

    - GEOSWKTReader / GEOSWKTWriter: WKT parsing and serialization

    - GEOSWKBReader / GEOSWKBWriter: WKB parsing and serialization

Standalone functions:

    - geos_version(): Returns the GEOS version string

    - get_geos_info(): Returns detailed GEOS version information

    - parse_wkt() / make_wkt(): Convenience WKT parsing/serialization

    - parse_wkb() / make_wkb(): Convenience WKB parsing/serialization

Data provider module (GEOSDataProvider):

    The GEOSDataProvider separated module provides DataProvider API integration

    for reading and writing geometry data in WKT and WKB formats:

    - GEOSWktReadDataProvider: Read WKT geometries (one per line)

    - GEOSWktWriteDataProvider: Write WKT geometries (one per line)

    - GEOSWkbReadDataProvider: Read WKB geometries (hex or length-prefixed binary)

    - GEOSWkbWriteDataProvider: Write WKB geometries (hex or length-prefixed binary)

    Factories: geoswktread, geoswktwrite, geoswkbread, geoswkbwrite

See the generated documentation for more detailed information.

LICENSE

-------

The source code is released under the MIT license.

See COPYING.MIT for details on the open-source license.

BUILDING

--------

Requires qore 0.9+ and libgeos (with C API / geos_c.h) to build and run.

To configure and build:

    mkdir build

    cd build

    cmake ..

    make

To install:

    make install

To run tests:

    make test

CMake options:

    -DCMAKE_INSTALL_PREFIX=/path    Set installation prefix

    -DCMAKE_BUILD_TYPE=Release      Set build type (Release, Debug, etc.)

If Qore or GEOS cannot be found automatically, you can specify:

    cmake .. -DQORE_DIR=/path/to/qore -DGEOS_DIR=/path/to/geos

CONTACT

-------

Please direct any questions to:

    david@qore.org

Or report issues at:

    https://github.com/qoretechnologies/module-geos/issues