@cloudbase/js-sdk/database/dist/esm/geo/polygon.js

cloudbase javascript sdk

var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
import { SYMBOL_GEO_MULTI_POLYGON } from '../helper/symbol';
import { isArray, isNumber } from '../utils/type';
import { LineString } from './lineString';
var Polygon = (function () {
    function Polygon(lines) {
        if (!isArray(lines)) {
            throw new TypeError("\"lines\" must be of type LineString[]. Received type ".concat(typeof lines));
        }
        if (lines.length === 0) {
            throw new Error('Polygon must contain 1 linestring at least');
        }
        lines.forEach(function (line) {
            if (!(line instanceof LineString)) {
                throw new TypeError("\"lines\" must be of type LineString[]. Received type ".concat(typeof line, "[]"));
            }
            if (!LineString.isClosed(line)) {
                throw new Error("LineString ".concat(line.points.map(function (p) { return p.toReadableString(); }), " is not a closed cycle"));
            }
        });
        this.lines = lines;
    }
    Polygon.prototype.parse = function (key) {
        var _a;
        return _a = {},
            _a[key] = {
                type: 'Polygon',
                coordinates: this.lines.map(function (line) {
                    return line.points.map(function (point) { return [point.longitude, point.latitude]; });
                })
            },
            _a;
    };
    Polygon.prototype.toJSON = function () {
        return {
            type: 'Polygon',
            coordinates: this.lines.map(function (line) {
                return line.points.map(function (point) { return [point.longitude, point.latitude]; });
            })
        };
    };
    Polygon.validate = function (polygon) {
        var e_1, _a, e_2, _b;
        if (polygon.type !== 'Polygon' || !isArray(polygon.coordinates)) {
            return false;
        }
        try {
            for (var _c = __values(polygon.coordinates), _d = _c.next(); !_d.done; _d = _c.next()) {
                var line = _d.value;
                if (!this.isCloseLineString(line)) {
                    return false;
                }
                try {
                    for (var line_1 = (e_2 = void 0, __values(line)), line_1_1 = line_1.next(); !line_1_1.done; line_1_1 = line_1.next()) {
                        var point = line_1_1.value;
                        if (!isNumber(point[0]) || !isNumber(point[1])) {
                            return false;
                        }
                    }
                }
                catch (e_2_1) { e_2 = { error: e_2_1 }; }
                finally {
                    try {
                        if (line_1_1 && !line_1_1.done && (_b = line_1.return)) _b.call(line_1);
                    }
                    finally { if (e_2) throw e_2.error; }
                }
            }
        }
        catch (e_1_1) { e_1 = { error: e_1_1 }; }
        finally {
            try {
                if (_d && !_d.done && (_a = _c.return)) _a.call(_c);
            }
            finally { if (e_1) throw e_1.error; }
        }
        return true;
    };
    Polygon.isCloseLineString = function (lineString) {
        var firstPoint = lineString[0];
        var lastPoint = lineString[lineString.length - 1];
        if (firstPoint[0] !== lastPoint[0] || firstPoint[1] !== lastPoint[1]) {
            return false;
        }
        return true;
    };
    Object.defineProperty(Polygon.prototype, "_internalType", {
        get: function () {
            return SYMBOL_GEO_MULTI_POLYGON;
        },
        enumerable: false,
        configurable: true
    });
    return Polygon;
}());
export { Polygon };