How to use a template for drawing two Y-axes

How to use a template to draw two Y-axes

• Can be copied first画线类库This template is now available in its own control center.

画线类库
简化了策略图表画线的逻辑, 可以直接调用封装好的函数

支持画多条线
支持K线图
支持flag小图标
你也可以添加更多图形的支持
function main() {
    var isFirst = true
    while (true) {
        var records = exchange.GetRecords();
        if (records && records.length > 0) {
            $.PlotRecords(records, 'BTC')
            if (isFirst) {
                $.PlotFlag(records[records.length-1].Time, 'Start', 'S')
                isFirst = false
            }
        }
        var ticker = exchange.GetTicker()
        if (ticker) {
            $.PlotLine('Last', ticker.Last)
            $.PlotTitle('Last ' + ticker.Last)
        }

        Sleep(60000)
    }
}

The following problems may occur when using this template:

The reason is that the calculated MACD indicator value is too small, and the result is not shown locally (too small).

The solution is to add a Y-axis to the graph to display the indicator line separately, with the following example code:

var preTime = 0;
var ChartObj = null;
function main(){
    LogReset(1);
    ChartObj = Chart(null);
    ChartObj.reset();
    var records = null;
    var MACD = null;
    exchange.SetContractType("quarter");
    // Log(exchange.GetUSDCNY());
    // exchange.SetRate(exchange.GetUSDCNY());
    exchange.SetRate(1);
    ChartObj = $.GetCfg();
    
    ///*
    // 处理 指标轴------------------------
    ChartObj.yAxis = [{
            title: {text: 'K线'},//标题
            style: {color: '#4572A7'},//样式 
            opposite: false  //生成右边Y轴
        },
        {
            title:{text: "指标轴"},
            opposite: true,  //生成右边Y轴  ceshi
        }
    ];
    // 初始化指标线
    while(!records || records.length < 30){
        records = _C(exchange.GetRecords);
        LogStatus("records.length:", records.length);
        Sleep(1000);
    }
    
    $.PlotRecords(records, 'OK期货');
    $.PlotLine('dif', 0, records[records.length - 1].Time);
    $.PlotLine('dea', 0, records[records.length - 1].Time);
    var chart = $.PlotLine('macd', 0, records[records.length - 1].Time);
    // 修改指标线 坐标轴Y轴
    for(var key in ChartObj.series){
        if(ChartObj.series[key].name == 'dif' || ChartObj.series[key].name == 'dea' || ChartObj.series[key].name == 'macd'){
            ChartObj.series[key].yAxis = 1;
        }
    }
    chart.update(ChartObj);
    chart.reset();
    //*/
    
    while(true){
        records = _C(exchange.GetRecords);
        if(records.length > 50){
            $.PlotRecords(records, 'OK期货');
            MACD = TA.MACD(records);
            var dif = MACD[0];
            var dea = MACD[1];
            var macd = MACD[2];
            if(preTime !== records[records.length - 1].Time){
                $.PlotLine('dif', dif[dif.length - 2], records[records.length - 2].Time);
                $.PlotLine('dea', dea[dea.length - 2], records[records.length - 2].Time);
                $.PlotLine('macd', macd[macd.length - 2], records[records.length - 2].Time);
                
                $.PlotLine('dif', dif[dif.length - 1], records[records.length - 1].Time);
                $.PlotLine('dea', dea[dea.length - 1], records[records.length - 1].Time);
                $.PlotLine('macd', macd[macd.length - 1], records[records.length - 1].Time);
                
                preTime = records[records.length - 1].Time;
            }else{
                $.PlotLine('dif', dif[dif.length - 1], records[records.length - 1].Time);
                $.PlotLine('dea', dea[dea.length - 1], records[records.length - 1].Time);
                $.PlotLine('macd', macd[macd.length - 1], records[records.length - 1].Time);
            }
        }
        LogStatus("records.length:", records.length, records[records.length - 1]);
        // Log(records[records.length - 1]);
        Sleep(1000);
    }
}

Remember to check when you test

Screenshot from the video: