实时更新烛台图？

问题描述

如何实时更新图表而不是一次又一次地重新打印？ 我用过plot和破折号。

import ibapi
import pandas
import plotly.graph_objects as go
from ibapi.client import EClient
from ibapi.wrapper import EWrapper
from ibapi.contract import Contract

import threading
import time

class IBapi(EWrapper,EClient):
      def __init__(self):
           EClient.__init__(self,self)
           self.data = [] #Initialize variable to store candle
      def historicalData(self,reqId,bar):
           print(f'Time: {bar.date} High: {bar.high} Low: {bar.low} Open: {bar.open} Close : 
                                                                             {bar.close}')
           self.data.append([bar.date,bar.high,bar.low,bar.open,bar.close])

def run_loop():
    app.run()
 
app = IBapi()
app.connect('127.0.0.1',7496,123)

#Start the socket in a thread
api_thread = threading.Thread(target=run_loop,daemon=True)
api_thread.start()

time.sleep(1) 

#contract object
eurusd_contract = Contract()
eurusd_contract.symbol = 'EUR'
eurusd_contract.secType = 'CASH'
eurusd_contract.exchange = 'IDEALPRO'
eurusd_contract.currency = 'USD'



i=1
while i==1:
    app.reqHistoricalData(1,eurusd_contract,'','2 D','1 hour','BID',1,2,False,[])
    time.sleep(5)  #sleep to allow enough time for data to be returned

    df = pandas.DataFrame(app.data,index=None,columns=['DateTime','High','Low','Open','Close'])
    df['DateTime'] = pandas.to_datetime(df['DateTime'],unit='s') 
    df.to_csv('EURUSD_Hourly.csv')
    #print(df)
    time.sleep(5)



    fig = go.figure(data=[ 
          go.Candlestick(
          x=df['DateTime'],open=df['Open'],high=df['High'],low=df['Low'],close=df['Close'])])

    fig = fig.update_layout(title= 'INteraCTIVE CHART',yaxis_title = eurusd_contract.symbol)

    fig.show()
    time.sleep(10)

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。

小编邮箱:dio#foxmail.com (将#修改为@）