var indices = {
name: 0,
group: 1,
id: 16
};
var schema = [
{name: 'name', index: 0},
{name: 'group', index: 1},
{name: 'protein', index: 2},
{name: 'calcium', index: 3},
{name: 'sodium', index: 4},
{name: 'fiber', index: 5},
{name: 'vitaminc', index: 6},
{name: 'potassium', index: 7},
{name: 'carbohydrate', index: 8},
{name: 'sugars', index: 9},
{name: 'fat', index: 10},
{name: 'water', index: 11},
{name: 'calories', index: 12},
{name: 'saturated', index: 13},
{name: 'monounsat', index: 14},
{name: 'polyunsat', index: 15},
{name: 'id', index: 16}
];
var axisColors = {
'xAxisLeft': '#2A8339',
'xAxisRight': '#367DA6',
'yAxisTop': '#A68B36',
'yAxisBottom': '#BD5692'
};
var colorBySchema = {};
var fieldIndices = schema.reduce(function (obj, item) {
obj[item.name] = item.index;
return obj;
}, {});
var groupCategories = [];
var groupColors = [];
var data;
// zlevel 为 1 的层开启尾迹特效
myChart.getZr().configLayer(1, {
motionBlur: 0.5
});
function normalizeData(originData) {
var groupMap = {};
originData.forEach(function (row) {
var groupName = row[indices.group];
if (!groupMap.hasOwnProperty(groupName)) {
groupMap[groupName] = 1;
}
});
originData.forEach(function (row) {
row.forEach(function (item, index) {
if (index !== indices.name
&& index !== indices.group
&& index !== indices.id
) {
// Convert null to zero, as all of them under unit "g".
row[index] = parseFloat(item) || 0;
}
});
});
for (var groupName in groupMap) {
if (groupMap.hasOwnProperty(groupName)) {
groupCategories.push(groupName);
}
}
var hStep = Math.round(300 / (groupCategories.length - 1));
for (var i = 0; i < groupCategories.length; i++) {
groupColors.push(echarts.color.modifyHSL('#5A94DF', hStep * i));
}
return originData;
}
function makeAxis(dimIndex, id, name, nameLocation) {
var axisColor = axisColors[id.split('-')[dimIndex]];
colorBySchema[name] = axisColor;
return {
id: id,
name: name,
nameLocation: nameLocation,
nameGap: nameLocation === 'middle' ? 30 : 10,
gridId: id,
splitLine: {show: false},
axisLine: {
lineStyle: {
color: axisColor
}
},
axisLabel: {
textStyle: {
color: axisColor
}
},
axisTick: {
lineStyle: {
color: axisColor
}
}
};
}
function makeSeriesData(xLeftOrRight, yTopOrBottom) {
return data.map(function (item, idx) {
var schemaX = app.config[xLeftOrRight];
var schemaY = app.config[yTopOrBottom];
return [
item[fieldIndices[schemaX]], // 0: xValue
item[fieldIndices[schemaY]], // 1: yValue
item[1], // 2: group
item[0], // 3: name
schemaX, // 4: schemaX
schemaY, // 5: schemaY
idx // 6
];
});
}
function makeSeries(xLeftOrRight, yTopOrBottom) {
var id = xLeftOrRight + '-' + yTopOrBottom;
return {
zlevel: 1,
type: 'scatter',
name: 'nutrients',
xAxisId: id,
yAxisId: id,
symbolSize: 8,
itemStyle: {
emphasis: {
color: '#fff'
}
},
animationThreshold: 5000,
progressiveThreshold: 5000,
data: makeSeriesData(xLeftOrRight, yTopOrBottom)
};
}
function makeDataZoom(opt) {
return echarts.util.extend({
type: 'slider',
fillerColor: 'rgba(255,255,255,0.1)',
borderColor: '#777',
handleIcon: 'M10.7,11.9v-1.3H9.3v1.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4v1.3h1.3v-1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7V23h6.6V24.4z M13.3,19.6H6.7v-1.4h6.6V19.6z',
handleSize: '60%',
handleStyle: {
color: '#aaa'
},
textStyle: {
color: '#aaa'
},
filterMode: 'empty',
realtime: false
}, opt);
}
function tooltipFormatter(params) {
// Remove duplicate by data name.
var mapByDataName = {};
var mapOnDim = {x: {}, y: {}, xy: {}};
echarts.util.each(params, function (item) {
var data = item.data;
var dataName = data[3];
var mapItem = mapByDataName[dataName] || (mapByDataName[dataName] = {});
mapItem[data[4]] = data[0];
mapItem[data[5]] = data[1];
mapOnDim[item.axisDim][dataName] = mapItem;
});
echarts.util.each(mapByDataName, function (mapItem, dataName) {
if (mapOnDim.x[dataName] && mapOnDim.y[dataName]) {
mapOnDim.xy[dataName] = mapItem;
delete mapOnDim.x[dataName];
delete mapOnDim.y[dataName];
}
});
var resultHTML = [];
echarts.util.each([['xy', 'CROSS'], ['x', 'V LINE'], ['y', 'H LINE']], function (dimDefine) {
var html = [];
echarts.util.each(mapOnDim[dimDefine[0]], function (mapItem, dataName) {
var valuesHTML = [];
echarts.util.each(mapItem, function (value, dataName) {
valuesHTML.push(
'<span style="color:' + colorBySchema[dataName] + '">'
+ dataName
+ '</span>: ' + value
);
});
html.push('<div style="margin: 10px 0">' + dataName + '<br/>' + valuesHTML.join('<br/>') + '</div>');
});
html.length && resultHTML.push(
'<div style="margin: 10px 0">'
+ '<div style="font-size: 16px; color: #aaa">POINTS ON ' + dimDefine[1] + '</div>'
+ html.join('')
+ '</div>'
);
});
return resultHTML.join('');
}
function getOption(data) {
var gridWidth = '35%';
var gridHeight = '35%';
var gridLeft = 80;
var gridRight = 50;
var gridTop = 50;
var gridBottom = 80;
return {
backgroundColor: '#2c343c',
tooltip: {
trigger: 'none',
padding: [10, 20, 10, 20],
backgroundColor: 'rgba(44,52,60,0.7)',
borderColor: '#ccc',
borderWidth: 2,
borderRadius: 4,
transitionDuration: 0,
extraCssText: 'width: 300px; white-space: normal',
textStyle: {
fontSize: 12
},
position: function (pos, params, el, elRect, size) {
var obj = {};
obj[['left', 'right'][+(pos[0] < size.viewSize[0] / 2)]] = 60;
obj[['top', 'bottom'][+(pos[1] < size.viewSize[1] / 2)]] = 20;
return obj;
},
formatter: tooltipFormatter
},
axisPointer: {
show: true,
snap: true,
lineStyle: {
type: 'dashed'
},
label: {
show: true,
margin: 6,
backgroundColor: '#556',
textStyle: {
color: '#fff'
}
},
link: [{
xAxisId: ['xAxisLeft-yAxisTop', 'xAxisLeft-yAxisBottom']
}, {
xAxisId: ['xAxisRight-yAxisTop', 'xAxisRight-yAxisBottom']
}, {
yAxisId: ['xAxisLeft-yAxisTop', 'xAxisRight-yAxisTop']
}, {
yAxisId: ['xAxisLeft-yAxisBottom', 'xAxisRight-yAxisBottom']
}]
},
xAxis: [
makeAxis(0, 'xAxisLeft-yAxisTop', 'carbohydrate', 'middle'),
makeAxis(0, 'xAxisLeft-yAxisBottom', 'carbohydrate', 'middle'),
makeAxis(0, 'xAxisRight-yAxisTop', 'potassium', 'middle'),
makeAxis(0, 'xAxisRight-yAxisBottom', 'potassium', 'middle')
],
yAxis: [
makeAxis(1, 'xAxisLeft-yAxisTop', 'calcium', 'end'),
makeAxis(1, 'xAxisLeft-yAxisBottom', 'fiber', 'end'),
makeAxis(1, 'xAxisRight-yAxisTop', 'calcium', 'end'),
makeAxis(1, 'xAxisRight-yAxisBottom', 'fiber', 'end')
],
grid: [{
id: 'xAxisLeft-yAxisTop',
left: gridLeft,
top: gridTop,
width: gridWidth,
height: gridHeight
}, {
id: 'xAxisLeft-yAxisBottom',
left: gridLeft,
bottom: gridBottom,
width: gridWidth,
height: gridHeight
}, {
id: 'xAxisRight-yAxisTop',
right: gridRight,
top: gridTop,
width: gridWidth,
height: gridHeight
}, {
id: 'xAxisRight-yAxisBottom',
right: gridRight,
bottom: gridBottom,
width: gridWidth,
height: gridHeight
}],
dataZoom: [
makeDataZoom({
width: gridWidth,
height: 20,
left: gridLeft,
bottom: 10,
xAxisIndex: [0, 1]
}),
makeDataZoom({
width: gridWidth,
height: 20,
right: gridRight,
bottom: 10,
xAxisIndex: [2, 3]
}),
makeDataZoom({
orient: 'vertical',
width: 20,
height: gridHeight,
left: 10,
top: gridTop,
yAxisIndex: [0, 2]
}),
makeDataZoom({
orient: 'vertical',
width: 20,
height: gridHeight,
left: 10,
bottom: gridBottom,
yAxisIndex: [1, 3]
})
],
visualMap: [{
show: false,
type: 'piecewise',
categories: groupCategories,
dimension: 2,
inRange: {
color: groupColors //['#d94e5d','#eac736','#50a3ba']
},
outOfRange: {
color: ['#ccc'] //['#d94e5d','#eac736','#50a3ba']
},
top: 20,
textStyle: {
color: '#fff'
},
realtime: false
}],
series: [
makeSeries('xAxisLeft', 'yAxisTop'),
makeSeries('xAxisLeft', 'yAxisBottom'),
makeSeries('xAxisRight', 'yAxisTop'),
makeSeries('xAxisRight', 'yAxisBottom')
],
animationEasingUpdate: 'cubicInOut',
animationDurationUpdate: 2000
};
}
var fieldNames = schema.map(function (item) {
return item.name;
}).slice(2);
app.config = {
xAxisLeft: 'carbohydrate',
yAxisTop: 'calcium',
xAxisRight: 'potassium',
yAxisBottom: 'fiber',
onChange: function () {
if (data) {
colorBySchema[app.config.xAxisLeft] = axisColors.xAxisLeft;
colorBySchema[app.config.xAxisRight] = axisColors.xAxisRight;
colorBySchema[app.config.yAxisTop] = axisColors.yAxisTop;
colorBySchema[app.config.yAxisBottom] = axisColors.yAxisBottom;
myChart.setOption({
xAxis: [{
name: app.config.xAxisLeft
}, {
name: app.config.xAxisLeft
}, {
name: app.config.xAxisRight
}, {
name: app.config.xAxisRight
}],
yAxis: [{
name: app.config.yAxisTop
}, {
name: app.config.yAxisBottom
}, {
name: app.config.yAxisTop
}, {
name: app.config.yAxisBottom
}],
series: [{
data: makeSeriesData('xAxisLeft', 'yAxisTop')
}, {
data: makeSeriesData('xAxisLeft', 'yAxisBottom')
}, {
data: makeSeriesData('xAxisRight', 'yAxisTop')
}, {
data: makeSeriesData('xAxisRight', 'yAxisBottom')
}]
});
}
}
};
app.configParameters = {
xAxisLeft: {
options: fieldNames
},
xAxisRight: {
options: fieldNames
},
yAxisTop: {
options: fieldNames
},
yAxisBottom: {
options: fieldNames
}
};
$.get('./data/asset/data/nutrients.json', function (originData) {
data = normalizeData(originData).slice(0, 1000);
myChart.setOption(option = getOption(data));
});
