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define(function (require) {
var zrUtil = require('zrender/core/util');
// FIXME 公用？
/**
* @param {Array.<module:echarts/data/List>} datas
* @param {string} statisticsType 'average' 'sum'
* @inner
*/
function dataStatistics(datas, statisticsType) {
var dataNameMap = {};
var dims = ['value'];
for (var i = 0; i < datas.length; i++) {
datas[i].each(dims, function (value, idx) {
var name = datas[i].getName(idx);
dataNameMap[name] = dataNameMap[name] || [];
if (!isNaN(value)) {
dataNameMap[name].push(value);
}
});
}
return datas[0].map(dims, function (value, idx) {
var name = datas[0].getName(idx);
var sum = 0;
var min = Infinity;
var max = -Infinity;
var len = dataNameMap[name].length;
for (var i = 0; i < len; i++) {
min = Math.min(min, dataNameMap[name][i]);
max = Math.max(max, dataNameMap[name][i]);
sum += dataNameMap[name][i];
}
var result;
if (statisticsType === 'min') {
result = min;
}
else if (statisticsType === 'max') {
result = max;
}
else if (statisticsType === 'average') {
result = sum / len;
}
else {
result = sum;
}
return len === 0 ? NaN : result;
});
}
return function (ecModel) {
var seriesGroupByMapType = {};
ecModel.eachSeriesByType('map', function (seriesModel) {
var mapType = seriesModel.get('map');
seriesGroupByMapType[mapType] = seriesGroupByMapType[mapType] || [];
seriesGroupByMapType[mapType].push(seriesModel);
});
zrUtil.each(seriesGroupByMapType, function (seriesList, mapType) {
var data = dataStatistics(
zrUtil.map(seriesList, function (seriesModel) {
return seriesModel.getData();
}),
seriesList[0].get('mapValueCalculation')
);
seriesList[0].seriesGroup = [];
seriesList[0].setData(data);
// FIXME Put where?
for (var i = 0; i < seriesList.length; i++) {
seriesList[i].seriesGroup = seriesList;
seriesList[i].needsDrawMap = i === 0;
}
});
};
});