35 lines
1.2 KiB
JavaScript
Executable File
35 lines
1.2 KiB
JavaScript
Executable File
import bbox from "@turf/bbox";
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import { point, } from "@turf/helpers";
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/**
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* Takes a {@link Feature} or {@link FeatureCollection} and returns the absolute center point of all features.
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*
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* @name center
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* @param {GeoJSON} geojson GeoJSON to be centered
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* @param {Object} [options={}] Optional parameters
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* @param {Object} [options.properties={}] Translate GeoJSON Properties to Point
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* @param {Object} [options.bbox={}] Translate GeoJSON BBox to Point
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* @param {Object} [options.id={}] Translate GeoJSON Id to Point
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* @returns {Feature<Point>} a Point feature at the absolute center point of all input features
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* @example
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* var features = turf.points([
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* [-97.522259, 35.4691],
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* [-97.502754, 35.463455],
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* [-97.508269, 35.463245]
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* ]);
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*
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* var center = turf.center(features);
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*
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* //addToMap
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* var addToMap = [features, center]
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* center.properties['marker-size'] = 'large';
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* center.properties['marker-color'] = '#000';
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*/
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function center(geojson, options) {
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if (options === void 0) { options = {}; }
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var ext = bbox(geojson);
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var x = (ext[0] + ext[2]) / 2;
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var y = (ext[1] + ext[3]) / 2;
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return point([x, y], options.properties, options);
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}
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export default center;
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