#### **通过万能组件配置k线图**
**案例效果**
**代码实现**
~~~
var upColor = '#ec0000';
var upBorderColor = '#8A0000';
var downColor = '#00da3c';
var downBorderColor = '#008F28';
var dataCount = 2e5;
var data = generateOHLC(dataCount);
var option = {
dataset: {
source: data
},
title: {
text: 'Data Amount: ' + echarts.format.addCommas(dataCount)
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'line'
}
},
toolbox: {
feature: {
dataZoom: {
yAxisIndex: false
},
}
},
grid: [
{
left: '10%',
right: '10%',
bottom: 200
},
{
left: '10%',
right: '10%',
height: 80,
bottom: 80
}
],
xAxis: [
{
type: 'category',
scale: true,
boundaryGap: false,
// inverse: true,
axisLine: {onZero: false},
splitLine: {show: false},
splitNumber: 20,
min: 'dataMin',
max: 'dataMax'
},
{
type: 'category',
gridIndex: 1,
scale: true,
boundaryGap: false,
axisLine: {onZero: false},
axisTick: {show: false},
splitLine: {show: false},
axisLabel: {show: false},
splitNumber: 20,
min: 'dataMin',
max: 'dataMax'
}
],
yAxis: [
{
scale: true,
splitArea: {
show: true
}
},
{
scale: true,
gridIndex: 1,
splitNumber: 2,
axisLabel: {show: false},
axisLine: {show: false},
axisTick: {show: false},
splitLine: {show: false}
}
],
dataZoom: [
{
type: 'inside',
xAxisIndex: [0, 1],
start: 10,
end: 100
},
{
show: true,
xAxisIndex: [0, 1],
type: 'slider',
bottom: 10,
start: 10,
end: 100,
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: '105%'
}
],
visualMap: {
show: false,
seriesIndex: 1,
dimension: 6,
pieces: [{
value: 1,
color: upColor
}, {
value: -1,
color: downColor
}]
},
series: [
{
type: 'candlestick',
itemStyle: {
color: upColor,
color0: downColor,
borderColor: upBorderColor,
borderColor0: downBorderColor
},
encode: {
x: 0,
y: [1, 4, 3, 2]
}
},
{
name: 'Volumn',
type: 'bar',
xAxisIndex: 1,
yAxisIndex: 1,
itemStyle: {
color: '#7fbe9e'
},
large: true,
encode: {
x: 0,
y: 5
}
}
]
};
function generateOHLC(count) {
var data = [];
var xValue = +new Date(2011, 0, 1);
var minute = 60 * 1000;
var baseValue = Math.random() * 12000;
var boxVals = new Array(4);
var dayRange = 12;
for (var i = 0; i < count; i++) {
baseValue = baseValue + Math.random() * 20 - 10;
for (var j = 0; j < 4; j++) {
boxVals[j] = (Math.random() - 0.5) * dayRange + baseValue;
}
boxVals.sort();
var openIdx = Math.round(Math.random() * 3);
var closeIdx = Math.round(Math.random() * 2);
if (closeIdx === openIdx) {
closeIdx++;
}
var volumn = boxVals[3] * (1000 + Math.random() * 500);
// ['open', 'close', 'lowest', 'highest', 'volumn']
// [1, 4, 3, 2]
data[i] = [
echarts.format.formatTime('yyyy-MM-dd\nhh:mm:ss', xValue += minute),
+boxVals[openIdx].toFixed(2), // open
+boxVals[3].toFixed(2), // highest
+boxVals[0].toFixed(2), // lowest
+boxVals[closeIdx].toFixed(2), // close
volumn.toFixed(0),
getSign(data, i, +boxVals[openIdx], +boxVals[closeIdx], 4) // sign
];
}
return data;
function getSign(data, dataIndex, openVal, closeVal, closeDimIdx) {
var sign;
if (openVal > closeVal) {
sign = -1;
}
else if (openVal < closeVal) {
sign = 1;
}
else {
sign = dataIndex > 0
// If close === open, compare with close of last record
? (data[dataIndex - 1][closeDimIdx] <= closeVal ? 1 : -1)
// No record of previous, set to be positive
: 1;
}
return sign;
}
}
~~~
- 概述
- 基础操作
- 1.新建大屏
- 2.画布介绍
- 3.添加组件
- 4.调整组件的图层和位置
- 5.预览、保存组件
- 6.修改大屏
- 7.其他操作
- 组件使用说明
- 1.背景配置
- 2.图表类组件
- 2.1柱形图组件
- 2.2折线图组件
- 2.3饼图组件
- 2.4环形图组件
- 2.5象形图组件
- 2.6雷达图组件
- 2.7散点图组件
- 2.8漏斗图组件
- 3.文本类组件
- 3.1文本框组件
- 3.2跑马灯组件
- 3.3超链接组件
- 3.4实时时间组件
- 4.图片类组件
- 4.1图片组件
- 4.2图片框组件
- 4.3轮播图组件
- 4.4滑动组件
- 4.5iframe组件
- 4.6video组件
- 5.指标类组件
- 5.1翻牌器组件
- 5.2仪盘表组件
- 5.3字符云组件
- 5.4进度条组件
- 6.表格类组件
- 6.1表格组件
- 6.2选项卡组件
- 7地图类组件
- 7.1地图组件
- 8万能组件
- 8.1堆叠条形图
- 8.2正负条形图
- 8.3双向对比柱形图
- 8.4圆形柱形图
- 8.5嵌套饼图
- 8.6矩形树图
- 8.7k线图
- 9万能dataV组件
- 组件数据