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@turf/point-on-line
Advanced tools
Takes a Point and a LineString and calculates the closest Point on the (Multi)LineString.
Parameters
lines
(Geometry | Feature<(LineString | MultiLineString)>) lines to snap topt
(Geometry | Feature<Point> | Array<number>) point to snap fromunits
[string] can be degrees, radians, miles, or kilometers (optional, default kilometers
)Examples
var line = turf.lineString([
[-77.031669, 38.878605],
[-77.029609, 38.881946],
[-77.020339, 38.884084],
[-77.025661, 38.885821],
[-77.021884, 38.889563],
[-77.019824, 38.892368]
]);
var pt = turf.point([-77.037076, 38.884017]);
var snapped = turf.pointOnLine(line, pt, 'miles');
//addToMap
var addToMap = [line, pt, snapped];
snapped.properties['marker-color'] = '#00f';
Returns Feature<Point> closest point on the line
to point
. The properties object will contain three values: index
: closest point was found on nth line part, dist
: distance between pt and the closest point, location
: distance along the line between start and the closest point.
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/point-on-line
Or install the Turf module that includes it as a function:
$ npm install @turf/turf
FAQs
turf point-on-line module
We found that @turf/point-on-line demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 4 open source maintainers collaborating on the project.
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