@nativescript-community/ui-carto/geometry/feature.ios.js

NativeScript plugin for CARTO Mobile SDK

import { BaseNative } from '../BaseNative';
import { LatitudeKey, LongitudeKey, MapBounds, fromNativeMapBounds } from '../core';
import { nativeVariantToJS } from '../utils';
export class FeatureCollection extends BaseNative {
    constructor(native) {
        super(null, native);
    }
    getFeature(index) {
        const nResult = this.native.getFeature(index);
        // const nGeo = nResult.getGeometry();
        return {
            properties: nativeVariantToJS(nResult.getProperties()),
            geometry: nResult.getGeometry()
        };
    }
    getGeometry(index) {
        return this.native.getFeature(index).getGeometry();
    }
    getFeatureCount() {
        return this.native.getFeatureCount();
    }
    get featureCount() {
        return this.native.getFeatureCount();
    }
    getBounds() {
        let minLat = Number.MAX_SAFE_INTEGER;
        let minLon = Number.MAX_SAFE_INTEGER;
        let maxLat = -Number.MAX_SAFE_INTEGER;
        let maxLon = -Number.MAX_SAFE_INTEGER;
        const featureCount = this.featureCount;
        for (let index = 0; index < featureCount; index++) {
            const geometry = this.getGeometry(index);
            const bounds = fromNativeMapBounds(geometry.getBounds());
            minLat = Math.min(minLat, bounds.northeast[LatitudeKey]);
            minLon = Math.min(minLon, bounds.northeast[LongitudeKey]);
            maxLat = Math.max(maxLat, bounds.southwest[LatitudeKey]);
            maxLon = Math.max(maxLon, bounds.southwest[LongitudeKey]);
        }
        return new MapBounds({
            [LatitudeKey]: minLat,
            [LongitudeKey]: minLon
        }, {
            [LatitudeKey]: maxLat,
            [LongitudeKey]: maxLon
        });
    }
}
export class VectorTileFeatureCollection extends FeatureCollection {
    getFeature(index) {
        const nResult = this.native.getFeature(index);
        return {
            properties: nativeVariantToJS(nResult.getProperties()),
            geometry: nResult.getGeometry(),
            id: nResult.getId(),
            layerName: nResult.getLayerName(),
            distance: nResult.getDistance()
        };
    }
}
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