Function encode

test/data/map/encode.js:21–58

(json)

function encode(json) {
    if (json.UTF8Encoding) {
        return;
    }

    json.UTF8Encoding = true;

    var features = json.features;

    features.forEach(function (feature){
        var encodeOffsets = feature.geometry.encodeOffsets = [];
        var coordinates = feature.geometry.coordinates;
        if (feature.geometry.type === 'MultiPolygon') {
            coordinates.forEach(function (polygon, idx1){
                encodeOffsets[idx1] = [];
                polygon.forEach(function (coordinate, idx2) {
                    coordinates[idx1][idx2] = encodeRing(
                        coordinate, encodeOffsets[idx1][idx2] = []
                    );
                });
            });
        }
        else if (feature.geometry.type == 'Polygon'
            || feature.geometry.type == 'MultiLineString'
        ) {
            coordinates.forEach(function (coordinate, idx){
                coordinates[idx] = encodeRing(
                    coordinate, encodeOffsets[idx] = []
                );
            });
        }
        else if (feature.geometry.type === 'LineString') {
            feature.geometry.coordinates = encodeRing(coordinates, encodeOffsets)
        }
    });

    return json;
}

function encodeRing(coordinates, encodeOffsets) {