define(function(require) {

'use strict';

var zrUtil = require('zrender/core/util');

var coordinateSystemCreators = {};

function CoordinateSystemManager() {

this._coordinateSystems = [];

}

CoordinateSystemManager.prototype = {

constructor: CoordinateSystemManager,

create: function (ecModel, api) {

var coordinateSystems = [];

zrUtil.each(coordinateSystemCreators, function (creater, type) {

var list = creater.create(ecModel, api);

coordinateSystems = coordinateSystems.concat(list || []);

});

this._coordinateSystems = coordinateSystems;

},

update: function (ecModel, api) {

zrUtil.each(this._coordinateSystems, function (coordSys) {

// FIXME MUST have

coordSys.update && coordSys.update(ecModel, api);

});

},

getCoordinateSystems: function () {

return this._coordinateSystems.slice();

}

};

CoordinateSystemManager.register = function (type, coordinateSystemCreator) {

coordinateSystemCreators[type] = coordinateSystemCreator;

};

CoordinateSystemManager.get = function (type) {

return coordinateSystemCreators[type];

};

return CoordinateSystemManager;

});