define(function (require) {
'use strict';
var completeDimensions = require('../../data/helper/completeDimensions');
var SeriesModel = require('../../model/Series');
var List = require('../../data/List');
var zrUtil = require('zrender/core/util');
var formatUtil = require('../../util/format');
var encodeHTML = formatUtil.encodeHTML;
var nest = require('../../util/array/nest');
var DATA_NAME_INDEX = 2;
var ThemeRiverSeries = SeriesModel.extend({
type: 'series.themeRiver',
dependencies: ['singleAxis'],
/**
* @readOnly
* @type {Object}
*/
nameMap: null,
/**
* @override
*/
init: function (option) {
ThemeRiverSeries.superApply(this, 'init', arguments);
// Enable legend selection for each data item
// Use a function instead of direct access because data reference may changed
this.legendDataProvider = function () {
return this._dataBeforeProcessed;
};
},
/**
* If there is no value of a certain point in the time for some event,set it value to 0.
*
* @param {Array} data
* @return {Array}
*/
fixData: function (data) {
var rawDataLength = data.length;
// grouped data by name
var dataByName = nest()
.key(function (dataItem) {
return dataItem[2] ;
})
.entries(data);
// data group in each layer
var layData = zrUtil.map(dataByName, function (d) {
return {
name: d.key,
dataList: d.values
};
});
var layerNum = layData.length;
var largestLayer = -1;
var index = -1;
for (var i = 0; i < layerNum; ++i) {
var len = layData[i].dataList.length;
if (len > largestLayer) {
largestLayer = len;
index = i;
}
}
for (var k = 0; k < layerNum; ++k) {
if (k === index) {
continue;
}
var name = layData[k].name;
for (var j = 0; j < largestLayer; ++j) {
var timeValue = layData[index].dataList[j][0];
var length = layData[k].dataList.length;
var keyIndex = -1;
for (var l = 0; l < length; ++l){
var value = layData[k].dataList[l][0];
if (value === timeValue) {
keyIndex = l;
break;
}
}
if (keyIndex === -1) {
data[rawDataLength] = [];
data[rawDataLength][0] = timeValue;
data[rawDataLength][1] = 0;
data[rawDataLength][2] = name;
rawDataLength++;
}
}
}
return data;
},
/**
* @override
* @param {Object} option the initial option that user gived
* @param {module:echarts/model/Model} ecModel
* @return {module:echarts/data/List}
*/
getInitialData: function (option, ecModel) {
var dimensions = [];
var singleAxisModel = ecModel.getComponent(
'singleAxis', this.option.singleAxisIndex
);
var axisType = singleAxisModel.get('type');
dimensions = [
{
name: 'time',
// FIXME
// common?
type: axisType === 'category'
? 'ordinal'
: axisType === 'time'
? 'time'
: 'float'
},
{
name: 'value',
type: 'float'
},
{
name: 'name',
type: 'ordinal'
}
];
var data = this.fixData(option.data);
var nameList = [];
var nameMap = this.nameMap = {};
var count = 0;
for (var i = 0; i < data.length; ++i) {
nameList.push(data[i][DATA_NAME_INDEX]);
if (!nameMap[data[i][DATA_NAME_INDEX]]) {
nameMap[data[i][DATA_NAME_INDEX]] = count++;
}
}
completeDimensions(dimensions, data);
var list = new List(dimensions, this);
list.initData(data, nameList);
return list;
},
/**
* used by single coordinate.
*
* @param {string} axisDim
* @return {Array.<string> } specified dimensions on the axis.
*/
coordDimToDataDim: function (axisDim) {
var dims = {
oneDim: ['time']
};
return dims[axisDim];
},
/**
* The raw data is divided into multiple layers and each layer
* has same name.
*
* @return {Array.<Array.<number>}
*/
getLayerSeries: function () {
var data = this.getData();
var lenCount = data.count();
var indexArr = [];
for (var i = 0; i < lenCount; ++i) {
indexArr[i] = i;
}
// data group by name
var dataByName = nest()
.key(function (index) {
return data.get('name', index);
})
.entries(indexArr);
var layerSeries = zrUtil.map(dataByName, function (d) {
return {
name: d.key,
indices: d.values
};
});
for(var j = 0; j < layerSeries.length; ++j) {
layerSeries[j].indices.sort(comparer);
}
function comparer(index1, index2) {
return data.get('time', index1) - data.get('time', index2);
}
return layerSeries;
},
/**
* Get data indices for show tooltip content.
*
* @param {Array.<string>} dim
* @param {Array.<number>} value
* @param {module:echarts/coord/single/SingleAxis} baseAxis
* @return {Array.<number>}
*/
getAxisTooltipDataIndex: function (dim, value, baseAxis) {
if (!zrUtil.isArray(dim)) {
dim = dim ? [dim] : [];
}
var data = this.getData();
if (baseAxis.orient === 'horizontal') {
value = value[0];
}
else {
value = value[1];
}
var layerSeries = this.getLayerSeries();
var indices = [];
var layerNum = layerSeries.length;
for (var i = 0; i < layerNum; ++i) {
var minDist = Number.MAX_VALUE;
var nearestIdx = -1;
var pointNum = layerSeries[i].indices.length;
for (var j = 0; j < pointNum; ++j) {
var dist = Math.abs(data.get(dim[0], layerSeries[i].indices[j]) - value);
if (dist <= minDist) {
minDist = dist;
nearestIdx = layerSeries[i].indices[j];
}
}
indices.push(nearestIdx);
}
return indices;
},
/**
* @override
* @param {Array.<number>} dataIndex
*/
formatTooltip: function (dataIndexs) {
var data = this.getData();
var len = dataIndexs.length;
var time = data.get('time', dataIndexs[0]);
var single = this.coordinateSystem;
var axis = single.getAxis();
if (axis.scale.type === 'time') {
time = formatUtil.formatTime('yyyy-MM-dd', time);
}
var html = time + '<br />';
for (var i = 0; i < len; ++i) {
var htmlName = data.get('name', dataIndexs[i]);
var htmlValue = data.get('value', dataIndexs[i]);
if (isNaN(htmlValue) || htmlValue == null) {
htmlValue = '-';
}
html += encodeHTML(htmlName) + ' : ' + htmlValue + '<br />';
}
return html;
},
defaultOption: {
zlevel: 0,
z: 2,
coordinateSystem: 'single',
// gap in axis's orthogonal orientation
boundaryGap: ['10%', '10%'],
// legendHoverLink: true,
singleAxisIndex: 0,
animationEasing: 'linear',
label: {
normal: {
margin: 4,
textAlign: 'right',
show: true,
position: 'left',
textStyle: {
color: '#000',
fontSize: 11
}
},
emphasis: {
show: true
}
}
}
});
return ThemeRiverSeries;
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