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@turf/polygon-to-linestring

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@turf/polygon-to-linestring

turf polygon-to-linestring module

    5.0.0latest
    GitHub

Version published
Maintainers
4
Weekly downloads
687
increased by9.57%

Weekly downloads

Changelog

Source

5.0.0 🎉

⭐️ Major Updates

  • TurfJS now supports ES Modules (Related PR's)
  • Optional parameters are now defined as an Object.

🚀 New Modules

[@turf/voronoi][voronoi]

Takes a FeatureCollection of points, and a bounding box, and returns a FeatureCollection of Voronoi polygons. (PR https://github.com/Turfjs/turf/pull/1043 - Author @stevage)

[@turf/shortest-path][shortest-path]

Returns the shortest path from start to end without colliding with any feature in obstacles (PR https://github.com/Turfjs/turf/pull/956 - Author @stebogit)

[@turf/boolean-parallel][boolean-parallel]

Boolean-Parallel returns True if each segment of line1 is parallel to the correspondent segment of line2 (PR https://github.com/Turfjs/turf/pull/941 - Author @stebogit)

[@turf/nearest-point-on-line][nearest-point-on-line]

Takes a {@link Point} and a {@link LineString} and calculates the closest Point on the (Multi)LineString. (PR https://github.com/Turfjs/turf/pull/939 - Author @stebogit)

🏅 New Features/Enhancements

  • Updates [@turf/unkink-polygon][unkink-polygon] testing & added flattenEach instead of using flatten. (PR https://github.com/Turfjs/turf/pull/889)

  • Add multi-geomtry support to @turf/line-split (PR https://github.com/Turfjs/turf/pull/1078)

  • Improve @turf/meta lineEach method to provide properties, id and bbox (PR https://github.com/Turfjs/turf/pull/1010)

🐛 Bug Fixes

  • Fixes @turf/helpers earth radius variable (PR https://github.com/Turfjs/turf/pull/1012)

  • Fixes @turf/polygon-tangents bug (PR https://github.com/Turfjs/turf/pull/1058)

  • Fixes @turf/line-chunk bug when the number of segments is integer (PR https://github.com/Turfjs/turf/pull/1046)

  • Fixes segmentEach and segmentReduce methods in @turf/meta to ensure something is returned (PR https://github.com/Turfjs/turf/pull/968)

⚠️ Breaking Change

  • Optional parameters are now defined as an Object:

Before

var from = [-75.343, 39.984]; var to = [-75.534, 39.123]; var units = 'miles'; var distance = turf.distance(from, to, units);

After

var from = [-75.343, 39.984]; var to = [-75.534, 39.123]; var options = {units: 'miles'}; var distance = turf.distance(from, to, options);
  • Reworked @turf/random PR https://github.com/Turfjs/turf/issues/994
  • Deprecate @turf/idw Issue https://github.com/Turfjs/turf/issues/887
  • Reworked Grid modules @turf/point-grid/hex/square/triangle PR https://github.com/Turfjs/turf/pull/1029
  • Renamed Modules/Methods
    • [x] @turf/inside => @turf/boolean-point-in-polygon https://github.com/Turfjs/turf/issues/860#issuecomment-317216235
    • [x] @turf/within => @turf/points-within-polygon https://github.com/Turfjs/turf/issues/860#issuecomment-317216235
    • [x] @turf/bezier => @turf/bezier-spline Issue https://github.com/Turfjs/turf/issues/661
    • [x] @turf/nearest => @turf/nearest-point https://github.com/Turfjs/turf/pull/858#issuecomment-317197295
    • [x] @turf/point-on-line => @turf/nearest-point-on-line https://github.com/Turfjs/turf/pull/858#issuecomment-317197295
    • [x] @turf/lineDistance => @turf/length https://github.com/Turfjs/turf/issues/860#issuecomment-317229869
    • [x] @turf/helpers
      • [x] radians2degrees => radiansToDegrees
      • [x] degrees2radians => degreesToRadians
      • [x] distanceToDegrees => lengthToDegrees
      • [x] distanceToRadians => lengthToRadians
      • [x] radiansToDistance => radiansToLength
      • [x] bearingToAngle => bearingToAzimuth
      • [x] convertDistance => convertLength

Readme

Source

@turf/polygon-to-linestring

polygonToLineString

Converts a Polygon to (Multi)LineString or MultiPolygon to a FeatureCollection of (Multi)LineString.

Parameters

Examples

var poly = turf.polygon([[[125, -30], [145, -30], [145, -20], [125, -20], [125, -30]]]); var line = turf.polygonToLineString(poly); //addToMap var addToMap = [line];

Returns (FeatureCollection | Feature<(LineString | MultiLinestring)>) converted (Multi)Polygon to (Multi)LineString


This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.

Installation

Install this module individually:

$ npm install @turf/polygon-to-linestring

Or install the Turf module that includes it as a function:

$ npm install @turf/turf

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Last updated on 02 Oct 2017

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