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@turf/ellipse
Advanced tools
Changelog
6.5.0
@turf/points-with-polygon
Add MultiPoint support
(PR https://github.com/Turfjs/turf/pull/2137 - Author @twelch)@turf/dissolve
Complete rewrite of the dissolve module to resolve many bugs
(PR https://github.com/Turfjs/turf/pull/2110 - Author @rowanwins)
@turf/mask
Complete rewrite of the mask module to resolve many bugs
(PR https://github.com/Turfjs/turf/pull/2130 - Author @rowanwins)
@turf/boolean-valid
Add missing dependency to
(PR https://github.com/Turfjs/turf/pull/2094 - Author @rycgar)
@turf/boolean-overlap
Improve clarity
(PR https://github.com/Turfjs/turf/pull/2133 - Author @patrickbrett)Readme
Takes a Point and calculates the ellipse polygon given two semi-axes expressed in variable units and steps for precision.
Parameters
center
Coord center pointxSemiAxis
number semi (major) axis of the ellipse along the x-axisySemiAxis
number semi (minor) axis of the ellipse along the y-axisoptions
Object Optional parameters (optional, default {}
)
options.angle
number angle of rotation (along the vertical axis), from North in decimal degrees, negative clockwise (optional, default 0
)options.pivot
Coord point around which the rotation will be performed (optional, default 'origin'
)options.steps
number number of steps (optional, default 64
)options.units
string unit of measurement for axes (optional, default 'kilometers'
)options.properties
Object properties (optional, default {}
)Examples
var center = [-75, 40];
var xSemiAxis = 5;
var ySemiAxis = 2;
var ellipse = turf.ellipse(center, xSemiAxis, ySemiAxis);
//addToMap
var addToMap = [turf.point(center), ellipse]
Returns Feature<Polygon> ellipse polygon
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.
Install this module individually:
$ npm install @turf/ellipse
Or install the Turf module that includes it as a function:
$ npm install @turf/turf
FAQs
turf ellipse module
We found that @turf/ellipse demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
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