接下来正式上教程:
1:有些教程是先在index.html中引入chart/charting_library.min.js文件,不过我对文件进行了一些处理(利用export将tradingview导出,不能在这里放出来了),所以只需要在使用的组件中引入即可(直接在index.html中引入charting_library.min.js也是可以达到效果的)
2:创建图表的容器,导入相关文件在生命周期函数mounted中对图表进行初始化(更多设置请查看官方api)
//数据处理都在这里
import { DataFeeds } from "../../static/chart/datafeed.js";
import { TradingView } from "../../static/chart/charting_library.min.js";
data(){
return{
code:'BTC',
study: [],
table: null,
widget: null
}
},
methods:{
init() {
const FALL = "#e34c4c";
const RAISE = "#00b38f";
this.widget = new TradingView.widget({
width: this.$refs.chart.clientWidth,//图的宽
height: this.$refs.chart.clientHeight,//图的高
//autosize:true//自动图表大小,经过使用发现没效果。。
symbol: this.code,//商品名
container_id: "chart_container",//显示位置
//参数是数据地址和获取数据频率
datafeed: new DataFeeds.UDFCompatibleDatafeed(base.market, 2000),
timezone: "Asia/Hong_Kong",//时区
interval: "1",//图的周期
library_path: "../../static/chart/",//本地的图表文件
locale: "zh",//语言
preset: "mobile",
charts_storage_url: "http://saveload.tradingview.com",
charts_storage_api_version: "1.1",
user_id: "jailecoeu",
disabled_features: [//一些需要关闭的功能
"use_localstorage_for_settings",
"display_market_status",
....
],
enabled_features: [
"study_templates",
"keep_left_toolbar_visible_on_small_screens",
"side_toolbar_in_fullscreen_mode",
"property_pages"
],
studies_overrides: {
//柱状颜色修改
"volume.volume.color.0": FALL,
"volume.volume.color.1": RAISE,
"volume.volume.transparency": 30
},
overrides: {
//覆盖操作
// "paneProperties.background": "#20334d",背景色
"paneProperties.vertGridProperties.color": "#f8f8f8",
"paneProperties.horzGridProperties.color": "#f8f8f8",
"paneProperties.legendProperties.showSeriesTitle": false,
"paneProperties.legendProperties.showLegend": false,
"mainSeriesProperties.candleStyle.upColor": RAISE,
"mainSeriesProperties.candleStyle.downColor": FALL,
"mainSeriesProperties.candleStyle.drawWick": true,
"mainSeriesProperties.candleStyle.drawBorder": false,
"mainSeriesProperties.candleStyle.borderUpColor": RAISE,
"mainSeriesProperties.candleStyle.borderDownColor": FALL,
"mainSeriesProperties.candleStyle.wickUpColor": RAISE,
"mainSeriesProperties.candleStyle.wickDownColor": FALL,
"mainSeriesProperties.candleStyle.barColorsOnPrevClose": false,
"mainSeriesProperties.areaStyle.color1": "#32577a",
"mainSeriesProperties.areaStyle.color2": "#ffffff",
"mainSeriesProperties.areaStyle.linecolor": "#32577a",
"mainSeriesProperties.areaStyle.linestyle": 0,
"mainSeriesProperties.areaStyle.linewidth": 2,
"mainSeriesProperties.areaStyle.priceSource": "close",
"symbolWatermarkProperties.color": "rgba(0, 0, 0, 0)"
}
});
let widget = this.widget;
widget.onChartReady(() => {
if (this.widget === null) return;
this.table = this.widget.chart();
this.table.createStudy(//显示成交量
"Volume",
false,
false,
[],
entityId => {
this.study[0] = entityId;
},
{
"volume ma.color": "rgba(132,170,213,0.7)"
}
);
this.table.setChartType(3);//3为分时图,1为K线图
});
}
}
3:完成了上面这些,便完成了图表的初始化,接下来便是最关键的数据的接入