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turf-center
Advanced tools
Takes a FeatureCollection and returns the absolute center point of all features.
Parameters
features
FeatureCollection input featuresExamples
var features = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.522259, 35.4691]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.502754, 35.463455]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.508269, 35.463245]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.516809, 35.465779]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.515372, 35.467072]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.509363, 35.463053]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.511123, 35.466601]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.518547, 35.469327]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.519706, 35.469659]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.517839, 35.466998]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.508678, 35.464942]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [-97.514914, 35.463453]
}
}
]
};
var centerPt = turf.center(features);
centerPt.properties['marker-size'] = 'large';
centerPt.properties['marker-color'] = '#000';
var resultFeatures = features.features.concat(centerPt);
var result = {
"type": "FeatureCollection",
"features": resultFeatures
};
//=result
Returns Feature<Point> a Point feature at the absolute center point of all input features
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-center
Or install the Turf module that includes it as a function:
$ npm install turf
FAQs
turf center module
We found that turf-center demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 9 open source maintainers collaborating on the project.
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