#@totto2727/geo

@totto2727/geo lets MoonBit applications model two-dimensional spatial data, measure and transform shapes, make robust topology decisions, and query indexed locations. It is a port of georust/geo with dedicated packages for geometry values, algorithms, robust predicates, and R-tree indexing; coordinates use Double and 3D geometry is outside the module scope.

#Usage

After completing Setup, measure a triangular work area through the geometry-value and algorithm packages:

///|
test "calculate a triangle area" {
  let triangle = @type.Triangle::Triangle(
    @type.Coord(0.0, 0.0),
    @type.Coord(4.0, 0.0),
    @type.Coord(0.0, 6.0),
  )
  inspect(@geo2d.HasArea::unsigned_area(triangle), content="12")
}

For package roles and API references, see 2D algorithms, geometry types, robust predicates, and the R-tree index.

#Key features

totto2727/geo/geo/2d/type provides Coord, Point, LineString, Polygon, multi-geometries, Rect, Triangle, and Geometry.
totto2727/geo/geo/2d provides planar and geographic measurement, topology, transformation, simplification, boolean, triangulation, and clustering algorithms.
totto2727/geo/robust provides adaptive orient2d and incircle predicates for topology-sensitive operations.
totto2727/geo/rtree provides bulk loading, mutation, rectangle queries, nearest queries, and iteration over spatial entries.

#Prerequisites

MoonBit: Install the MoonBit toolchain.

#Setup

Add totto2727/geo to the consumer project.

moon add totto2727/geo@0.1.3

Import the algorithm and geometry-type packages in the consumer package's moon.pkg.

import {
  "totto2727/geo/geo/2d" @geo2d,
  "totto2727/geo/geo/2d/type" @type,
}

#API

Mooncakes is the canonical generated API index. See the module page, 2D algorithms, geometry types, robust predicates, and R-tree pages.

#Development

For repository structure, development commands, and package documentation-test guidance, see AGENTS.md.

#License

MIT. See LICENSE.

This README was generated from the share-artifact skill and README template.

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