kepler.gl
Version:
kepler.gl is a webgl based application to visualize large scale location data in the browser
63 lines (60 loc) • 5.73 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getCentroid = getCentroid;
exports.getHexFields = void 0;
exports.getVertices = getVertices;
Object.defineProperty(exports, "h3GetResolution", {
enumerable: true,
get: function get() {
return _h3Js.h3GetResolution;
}
});
Object.defineProperty(exports, "h3IsValid", {
enumerable: true,
get: function get() {
return _h3Js.h3IsValid;
}
});
exports.idToPolygonGeo = idToPolygonGeo;
exports.isHexField = void 0;
var _h3Js = require("h3-js");
var _constants = require("@kepler.gl/constants");
// SPDX-License-Identifier: MIT
// Copyright contributors to the kepler.gl project
// get vertices should return [lon, lat]
function getVertices(_ref) {
var id = _ref.id;
// always reverse it
return (0, _h3Js.h3ToGeoBoundary)(id, true);
}
// get centroid should return [lon, lat]
function getCentroid(_ref2) {
var id = _ref2.id;
// always reverse it to [lng, lat]
return (0, _h3Js.h3ToGeo)(id).reverse();
}
function idToPolygonGeo(object, properties) {
if (!(object !== null && object !== void 0 && object.id)) {
return null;
}
var vertices = getVertices(object);
return {
type: 'Feature',
geometry: {
coordinates: properties !== null && properties !== void 0 && properties.isClosed ? [vertices] : vertices,
type: properties !== null && properties !== void 0 && properties.isClosed ? 'Polygon' : 'LineString'
},
properties: properties
};
}
var isHexField = exports.isHexField = function isHexField(field, _fieldIdx, _dataContainer) {
return field.type === _constants.ALL_FIELD_TYPES.h3;
};
var getHexFields = exports.getHexFields = function getHexFields(fields, dataContainer) {
return fields.filter(function (f, i) {
return isHexField(f, i, dataContainer);
});
};
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