turf.dart

A turf.js-like geospatial analysis library working with GeoJSON, written in pure Dart.

This includes a fully RFC 7946-compliant object-representation and serialization for GeoJSON.

Most of the implementation is a direct translation from turf.js.

Components

Measurement

  • along
  • area
  • bbox
  • bboxPolygon
  • x bearing
  • center
  • centerOfMass
  • centroid
  • x destination
  • x distance
  • envelope
  • length
  • x midpoint
  • pointOnFeature
  • polygonTangents
  • pointToLineDistance
  • rhumbBearing
  • rhumbDestination
  • rhumbDistance
  • square
  • greatCircle

Coordinate Mutation

  • cleanCoords
  • flip
  • rewind
  • round
  • truncate

Transformation

  • bboxClip
  • bezierSpline
  • buffer
  • circle
  • clone
  • concave
  • convex
  • difference
  • dissolve
  • intersect
  • lineOffset
  • simplify
  • tesselate
  • transformRotate
  • transformTranslate
  • transformScale
  • union
  • voronoi

Feature Conversion

  • combine
  • explode
  • flatten
  • lineToPolygon
  • polygonize
  • polygonToLine

MISC

  • kinks
  • lineArc
  • lineChunk
  • lineIntersect
  • lineOverlap
  • lineSegment
  • lineSlice
  • lineSliceAlong
  • lineSplit
  • mask
  • nearestPointOnLine
  • sector
  • shortestPath
  • unkinkPolygon

Random

  • randomPosition
  • randomPoint
  • randomLineString
  • randomPolygon

Data

  • sample

Interpolation

  • interpolate
  • isobands
  • isolines
  • planepoint
  • tin

Joins

  • pointsWithinPolygon
  • tag

Grids

  • hexGrid
  • pointGrid
  • squareGrid
  • triangleGrid

Classification

Aggregation

  • collect
  • clustersDbscan
  • clustersKmeans

META

  • coordAll
  • coordEach
  • coordReduce
  • featureEach
  • featureReduce
  • flattenEach
  • flattenReduce
  • getCoord
  • getCoords
  • getGeom
  • getType
  • geomEach
  • geomReduce
  • propEach
  • propReduce
  • segmentEach
  • segmentReduce
  • getCluster
  • clusterEach
  • clusterReduce

Assertions

  • collectionOf
  • containsNumber
  • geojsonType
  • featureOf

Booleans

  • booleanClockwise
  • booleanContains
  • booleanCrosses
  • booleanDisjoint
  • booleanEqual
  • booleanOverlap
  • booleanParallel
  • booleanPointInPolygon
  • booleanPointOnLine
  • booleanWithin

Unit Conversion

Libraries

turf
Support for doing something awesome. [...]
turf_bearing
turf_destination
turf_distance
turf_helpers
turf_midpoint
turf_nearest_point