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Takes a square or rectangular grid FeatureCollection of Point features with z-values and an array of value breaks and generates filled contour isobands.
Parameters
pointGrid
FeatureCollection<Point> input points - must be square or rectangularbreaks
Array<number> where to draw contoursoptions
Object options on output (optional, default {}
)
options.zProperty
string the property name in points
from which z-values will be pulled (optional, default 'elevation'
)options.commonProperties
Object GeoJSON properties passed to ALL isobands (optional, default {}
)options.breaksProperties
Array<Object> GeoJSON properties passed, in order, to the correspondent isoband (order defined by breaks) (optional, default []
)Returns FeatureCollection<MultiPolygon> a FeatureCollection of MultiPolygon features representing isobands
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/isobands
Or install the Turf module that includes it as a function:
$ npm install @turf/turf