Function countVisibleLayers

test/jasmine/tests/map_test.js:557–566

(gd)

        };

        function countVisibleLayers(gd) {
            var mapInfo = getMapInfo(gd);

            var sourceLen = mapInfo.layoutSources.length;
            var layerLen = mapInfo.layoutLayers.length;

            if(sourceLen !== layerLen) return null;

            return layerLen;
        }

        function getLayerLength(gd) {
            return Lib.filterVisible(gd._fullLayout.map.layers || []).length;