Method _parseToRegions

src/coord/geo/GeoJSONResource.ts:97–129

(nameProperty: string)

    }

    private _parseToRegions(nameProperty: string): GeoJSONRegion[] {
        const mapName = this._mapName;
        const geoJSON = this._geoJSON;
        let rawRegions;

        // https://jsperf.com/try-catch-performance-overhead
        try {
            rawRegions = geoJSON ? parseGeoJson(geoJSON, nameProperty) : [];
        }
        catch (e) {
            throw new Error('Invalid geoJson format\n' + e.message);
        }

        fixNanhai(mapName, rawRegions);

        each(rawRegions, function (region) {
            const regionName = region.name;

            fixTextCoord(mapName, region);
            fixDiaoyuIsland(mapName, region);

            // Some area like Alaska in USA map needs to be tansformed
            // to look better
            const specialArea = this._specialAreas && this._specialAreas[regionName];
            if (specialArea) {
                region.transformTo(
                    specialArea.left, specialArea.top, specialArea.width, specialArea.height
                );
            }
        }, this);

        return rawRegions;
    }

    /**
     * Only for exporting to users.