slides/custom/asset/ec-demo/wind-barb.html (367 lines of code) (raw):
<html>
<head>
<meta charset="utf-8">
<script src="../common/jquery.min.js"></script>
<script src="../common/echarts.min.js"></script>
<script src="../common/prettify/prettify.js"></script>
<script src="../common/showCode.js"></script>
<link rel="stylesheet" href="../common/reset.css">
<link rel="stylesheet" href="../common/prettify/prettify.css">
<script src="../common/perfect-scrollbar/0.6.8/js/perfect-scrollbar.min.js"></script>
<link rel="stylesheet" href="../common/perfect-scrollbar/0.6.8/css/perfect-scrollbar.min.css">
</head>
<body>
<div id="main">
<pre class="prettyprint" style="font-size: 16px;">
option = {
...,
series: [{ // 浪高
type: 'line',
yAxisIndex: 1
}, { // 风向箭头
type: 'custom',
renderItem: renderArrow,
encode: {
x: dims.time,
y: dims.windSpeed
},
data: data,
z: 10
}, { // 风速虚线
type: 'line',
symbol: 'none',
encode: {
x: dims.time,
y: dims.windSpeed
},
data: data
}, { // 天气图标
type: 'custom',
renderItem: renderWeather,
data: weatherData
}],
visualMap: {
seriesIndex: 1,
dimension: 1,
...
}
}
// 绘制风向箭头
function renderArrow(param, api) {
var point = api.coord([
api.value(dims.time),
api.value(dims.windSpeed)
]);
return {
type: 'path',
shape: {
pathData: 'M31 16l-15-15v9h-26v12h26v9z',
x: -arrowSize / 2,
y: -arrowSize / 2,
width: arrowSize,
height: arrowSize
},
rotation: directionMap[api.value(dims.R)],
position: point,
style: api.style({
stroke: '#555',
lineWidth: 1
})
};
}
// 绘制天气图标
function renderWeather(param, api) {
var point = api.coord([
api.value(dims.time) + + 3600 * 24 * 1000 / 2,
0
]);
return {
type: 'group',
children: [{
type: 'image',
style: {
image: api.value(dims.weatherIcon),
x: -weatherIconSize / 2,
y: -weatherIconSize / 2,
width: weatherIconSize,
height: weatherIconSize
},
position: [point[0], 110]
}, {
type: 'text',
style: {
text: api.value(dims.minTemp) + ' - ' + api.value(dims.maxTemp) + '°',
textFont: api.font({fontSize: 14}),
textAlign: 'center'
},
position: [point[0], 80]
}]
};
}
</pre>
<div id="chart"></div>
</div>
<script>
$.getJSON('../data/wind-barb-hobart.json', function (rawData) {
var weatherIcons = {
'Showers': '../data/weather/showers_128.png',
'Sunny': '../data/weather/sunny_128.png',
'Cloudy': '../data/weather/cloudy_128.png'
};
var directionMap = {};
echarts.util.each(
['W', 'WSW', 'SW', 'SSW', 'S', 'SSE', 'SE', 'ESE', 'E', 'ENE', 'NE', 'NNE', 'N', 'NNW', 'NW', 'WNW'],
function (name, index) {
directionMap[name] = Math.PI / 8 * index;
}
);
var data = echarts.util.map(rawData.data, function (entry) {
return [entry.time, entry.windSpeed, entry.R, entry.waveHeight];
});
var weatherData = echarts.util.map(rawData.forecast, function (entry) {
return [entry.localDate, 0, weatherIcons[entry.skyIcon], entry.minTemp, entry.maxTemp];
});
var dims = {
time: 0,
windSpeed: 1,
R: 2,
waveHeight: 3,
weatherIcon: 2,
minTemp: 3,
maxTemp: 4
};
var arrowSize = 18;
var weatherIconSize = 45;
function renderArrow(param, api) {
var point = api.coord([
api.value(dims.time),
api.value(dims.windSpeed)
]);
return {
type: 'path',
shape: {
pathData: 'M31 16l-15-15v9h-26v12h26v9z',
x: -arrowSize / 2,
y: -arrowSize / 2,
width: arrowSize,
height: arrowSize
},
rotation: directionMap[api.value(dims.R)],
position: point,
style: api.style({
stroke: '#555',
lineWidth: 1
})
};
}
function renderWeather(param, api) {
var point = api.coord([
api.value(dims.time) + + 3600 * 24 * 1000 / 2,
0
]);
return {
type: 'group',
children: [{
type: 'image',
style: {
image: api.value(dims.weatherIcon),
x: -weatherIconSize / 2,
y: -weatherIconSize / 2,
width: weatherIconSize,
height: weatherIconSize
},
position: [point[0], 110]
}, {
type: 'text',
style: {
text: api.value(dims.minTemp) + ' - ' + api.value(dims.maxTemp) + '°',
textFont: api.font({fontSize: 14}),
textAlign: 'center'
},
position: [point[0], 80]
}]
};
}
option = {
backgroundColor: '#eee',
title: {
text: '天气 风向 风速 海浪 预报',
subtext: '示例数据源于 www.seabreeze.com.au',
left: 'center'
},
tooltip: {
trigger: 'axis',
formatter: function (params) {
return [
echarts.format.formatTime('yyyy-MM-dd', params[0].value[dims.time])
+ ' ' + echarts.format.formatTime('hh:mm', params[0].value[dims.time]),
'风速：' + params[0].value[dims.windSpeed],
'风向：' + params[0].value[dims.R],
'浪高：' + params[0].value[dims.waveHeight]
].join('<br>');
}
},
grid: {
top: 160,
bottom: 125
},
xAxis: {
type: 'time',
maxInterval: 3600 * 1000 * 24,
splitLine: {
lineStyle: {
color: '#ddd'
}
}
},
yAxis: [{
name: '风速（节）',
nameLocation: 'middle',
nameGap: 35,
axisLine: {
lineStyle: {
color: '#666'
}
},
splitLine: {
lineStyle: {
color: '#ddd'
}
}
}, {
name: '浪高（米）',
nameLocation: 'middle',
nameGap: 35,
max: 6,
axisLine: {
lineStyle: {
color: '#015DD5'
}
},
splitLine: {show: false}
}, {
axisLine: {show: false},
axisTick: {show: false},
axisLabel: {show: false},
splitLine: {show: false}
}],
visualMap: {
type: 'piecewise',
// show: false,
orient: 'horizontal',
left: 'center',
bottom: 10,
pieces: [{
gte: 17,
color: '#18BF12',
label: '大风（>=17节）'
}, {
gte: 11,
lt: 17,
color: '#f4e9a3',
label: '中风（11 ~ 17 节）'
}, {
lt: 11,
color: '#D33C3E',
label: '微风（小于 11 节）'
}],
seriesIndex: 1,
dimension: 1
},
dataZoom: [{
type: 'inside',
xAxisIndex: 0,
minSpan: 5
}, {
type: 'slider',
xAxisIndex: 0,
minSpan: 5,
height: 20,
bottom: 50,
handleIcon: 'M10.7,11.9H9.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4h1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7V23h6.6V24.4z M13.3,19.6H6.7v-1.4h6.6V19.6z',
handleSize: '120%'
}],
series: [{
type: 'line',
yAxisIndex: 1,
showSymbol: false,
hoverAnimation: false,
symbolSize: 10,
areaStyle: {
normal: {
color: {
type: 'linear',
x: 0,
y: 0,
x2: 0,
y2: 1,
colorStops: [{
offset: 0, color: 'rgba(88,160,253,1)'
}, {
offset: 0.5, color: 'rgba(88,160,253,0.7)'
}, {
offset: 1, color: 'rgba(88,160,253,0)'
}]
}
}
},
lineStyle: {
normal: {
color: 'rgba(88,160,253,1)'
}
},
itemStyle: {
normal: {
color: 'rgba(88,160,253,1)'
}
},
encode: {
x: dims.time,
y: dims.waveHeight
},
data: data,
z: 2
}, {
type: 'custom',
renderItem: renderArrow,
encode: {
x: dims.time,
y: dims.windSpeed
},
data: data,
z: 10
}, {
type: 'line',
symbol: 'none',
encode: {
x: dims.time,
y: dims.windSpeed
},
lineStyle: {
normal: {
color: '#aaa',
type: 'dotted'
}
},
data: data,
z: 1
}, {
type: 'custom',
renderItem: renderWeather,
data: weatherData,
tooltip: {
trigger: 'item',
formatter: function (param) {
return param.value[dims.time] + ': '
+ param.value[dims.minTemp] + ' - ' + param.value[dims.maxTemp] + '°';
}
},
yAxisIndex: 2,
z: 11
}]
};
initShowCode(option, {codeWidth: 400});
});
</script>
</body>
</html>