Crate geo_core 

geo-core

Format-agnostic geospatial domain types, geometry helpers, and transforms for video-analysis.

This crate owns stable internal concepts such as coordinates, bounding boxes, geometry, features, collections, and geometry simplification. It intentionally does not depend on GeoJSON or expose wire-format crate types.

Install

[dependencies]
geo-core = { package = "moenarch-geo-core", version = "0.1.0" }

use geo_core::{Coordinate, Geometry};

Package surface

Primary workflow: geo.distance.

Workflow operations:

• geo.bounds: Computes bounds and coordinate counts for an internal geometry document.
• geo.distance: Computes haversine meters or planar coordinate-unit distance between lon/lat coordinates.

Debug operations:

• describe: inspect package metadata and runtime support.

Runtime support: library, CLI, server, and WASM wrappers expose these operations.

Run the primary workflow through the CLI:

cargo run -p moenarch-geo-core-cli -- run \
  --operation geo.distance \
  --json '{"from":[8.0,49.0],"mode":"haversine","to":[9.0,49.0]}'

Successful responses use the shared package-surface shape with operation, title, message, summary, and result. Default surface calls are deterministic, local-first, and do not download models, write persistent files, or execute external tools unless an operation explicitly documents native or external-tool execution.

Modules

surface

Library-owned runtime surface for geo-core.

Structs

BBox

Data type for a 2D bounding box.

Coordinate

Data type for a 2D geographic coordinate.

GeoFeature

GeoJSON-compatible feature data.

GeoFeatureCollection

GeoJSON-compatible feature collection data.

Enums

GeoError

Error type for geospatial domain validation and local data access.

Geometry

GeoJSON-shaped geometry data.

Functions

assemble_multipolygon

Assembles polygon or multipolygon geometry from outer and inner ring segments.

geometry_intersects_bbox

Returns true when a geometry intersects a bbox.

is_valid_closed_ring

Returns true when a ring has at least four positions and matching first/last points.

line_string

Creates linestring geometry from coordinates.

map_feature_coordinates

Applies a coordinate transform to every coordinate in a feature.

map_geometry_coordinates

Applies a coordinate transform to every coordinate in a geometry.

normalize_ring_orientation

Reverses a ring when needed to match the requested orientation.

point

Creates point geometry.

point_in_ring

Returns true when a point lies inside a closed ring.

polygon_or_multipolygon

Creates polygon or multipolygon geometry from polygon rings.

ring_area

Returns signed planar area for a closed ring.

simplify_geometry

Simplifies lines and rings in a geometry using Douglas-Peucker simplification.

simplify_line

Simplifies an open line using Douglas-Peucker simplification.

simplify_ring

Simplifies a closed ring and preserves ring closure.

stitch_rings

Stitches line segments into closed rings.

translate_geometry

Translates every coordinate in a geometry by a longitude/x and latitude/y delta.

Type Aliases

Position

Two-dimensional coordinate position in [longitude, latitude] order.

Properties

JSON object used for feature properties.

Result

Geo crate result type.