Python交互K线工具 K线核心功能+指标切换
Python交互K线工具 K线核心功能+指标切换
aiqtt团队量化研究，用vn.py回测和研究策略。基于vnpy开源代码，刚开始接触pyqt,开发界面还是很痛苦，找了很多案例参考，但并不能完全满足我们自己对于检查自己的交易逻辑的需求，只能参考网上的案例自己开发
代码较多，大家可以直接到GitHub下载开源源码查看
欢迎加入QQ交流群： 538665416（免费提供，期货，期权数据）
团队界面需求：
- 界面加载k线，
- 鼠标滚轮缩放，键盘缩放跳转
- 十字光标 显示K线详细信息
- 缩放自适应Y轴坐标
- 回测完以后加载买卖开平仓位置有箭头标记，并且通过键盘可以在标记之间跳转
- 界面切换操作周期
- 界面右键可以切换指标
- 分享部分核心代码:K线展示的核心功能使用pyqtgraph实现,根据需求实现部分跟新
Kline对象代码：
########################################################################
# K线图形对象
########################################################################
class CandlestickItem(pg.GraphicsObject):
"""K线图形对象""" # 初始化
# ----------------------------------------------------------------------
def __init__(self, data): """初始化"""
pg.GraphicsObject.__init__(self) # 数据格式: [ (time, open, close, low, high),...]
self.data = data
# 只重画部分图形，大大提高界面更新速度
self.setFlag(self.ItemUsesExtendedStyleOption)
# 画笔和画刷
w = 0.4
self.offset = 0
self.low = 0
self.high = 1
self.picture = QtGui.QPicture()
self.pictures = []
self.bPen = pg.mkPen(color=(0, 240, 240, 255), width=w * 2)
self.bBrush = pg.mkBrush((0, 240, 240, 255))
self.rPen = pg.mkPen(color=(255, 60, 60, 255), width=w * 2)
self.rBrush = pg.mkBrush((255, 60, 60, 255))
self.rBrush.setStyle(Qt.NoBrush)
# 刷新K线
self.generatePicture(self.data) # 画K线
# ----------------------------------------------------------------------
def generatePicture(self, data=None, redraw=False):
"""重新生成图形对象"""
# 重画或者只更新最后一个K线
if redraw:
self.pictures = []
elif self.pictures:
self.pictures.pop()
w = 0.4
bPen = self.bPen
bBrush = self.bBrush
rPen = self.rPen
rBrush = self.rBrush
low, high = (data[0]['low'], data[0]['high']) if len(data) > 0 else (0, 1)
for (t, open0, close0, low0, high0) in data:
if t >= len(self.pictures): tShift = t low, high = (min(low, low0), max(high, high0))
picture = QtGui.QPicture()
p = QtGui.QPainter(picture)
# # 下跌蓝色（实心）, 上涨红色（空心）
pen, brush, pmin, pmax = (bPen, bBrush, close0, open0) \
if open0 > close0 else (rPen, rBrush, open0, close0)
p.setPen(pen)
p.setBrush(brush)
# 画K线方块和上下影线
if pmin > low0:
p.drawLine(QtCore.QPointF(tShift, low0), QtCore.QPointF(tShift, pmin))
if high0 > pmax:
p.drawLine(QtCore.QPointF(tShift, pmax), QtCore.QPointF(tShift, high0))
p.drawRect(QtCore.QRectF(tShift - w, open0, w * 2, close0 - open0))
# if open0 == close0:
# p.drawRect(QtCore.QPointF(tShift - w, open0), QtCore.QPointF(tShift + w, close0))
# else:
# p.drawRect(QtCore.QRectF(tShift - w, open0, w * 2, close0 - open0))
# if pmin > low0:
# p.drawLine(QtCore.QPointF(tShift, low0), QtCore.QPointF(tShift, pmin))
# if high0 > pmax:
# p.drawLine(QtCore.QPointF(tShift, pmax), QtCore.QPointF(tShift, high0))
p.end() self.pictures.append(picture)
self.low, self.high = low, high # 手动重画
# ----------------------------------------------------------------------
def update(self):
if not self.scene() is None:
self.scene().update() # 自动重画
# ----------------------------------------------------------------------
def paint(self, p, o, w):
rect = o.exposedRect
xmin, xmax = (max(0, int(rect.left())), min(len(self.pictures), int(rect.right()))) [p.drawPicture(0, 0, pic) for pic in self.pictures[xmin:xmax]] # 定义边界
# ----------------------------------------------------------------------
def boundingRect(self):
return QtCore.QRectF(0, self.low, len(self.pictures), (self.high - self.low)) 键盘鼠标功能代码： ########################################################################
# 键盘鼠标功能
########################################################################
class KeyWraper(QtWidgets.QWidget):
"""键盘鼠标功能支持的元类""" # 初始化
# ----------------------------------------------------------------------
def __init__(self, parent=None):
QtWidgets.QWidget.__init__(self, parent) # 重载方法keyPressEvent(self,event),即按键按下事件方法
# ----------------------------------------------------------------------
def keyPressEvent(self, event):
if event.key() == QtCore.Qt.Key_Up:
self.onUp()
elif event.key() == QtCore.Qt.Key_Down:
self.onDown()
elif event.key() == QtCore.Qt.Key_Left:
self.onLeft()
elif event.key() == QtCore.Qt.Key_Right:
self.onRight()
elif event.key() == QtCore.Qt.Key_PageUp:
self.onPre()
elif event.key() == QtCore.Qt.Key_PageDown:
self.onNxt() # 重载方法mousePressEvent(self,event),即鼠标点击事件方法
# ----------------------------------------------------------------------
def mousePressEvent(self, event): if event.button() == QtCore.Qt.RightButton:
self.onRClick(event.pos())
elif event.button() == QtCore.Qt.LeftButton:
self.onLClick(event.pos()) # 重载方法mouseReleaseEvent(self,event),即鼠标点击事件方法
# ----------------------------------------------------------------------
def mouseReleaseEvent(self, event): if event.button() == QtCore.Qt.RightButton:
self.onRRelease(event.pos())
elif event.button() == QtCore.Qt.LeftButton:
self.onLRelease(event.pos())
self.releaseMouse() # 重载方法wheelEvent(self,event),即滚轮事件方法
# ----------------------------------------------------------------------
def wheelEvent(self, event): if event.delta() > 0:
self.onUp()
else:
self.onDown() # 重载方法dragMoveEvent(self,event),即拖动事件方法
# ----------------------------------------------------------------------
def paintEvent(self, event):
self.onPaint() # PgDown键
# ----------------------------------------------------------------------
def onNxt(self):
pass # PgUp键
# ----------------------------------------------------------------------
def onPre(self):
pass # 向上键和滚轮向上
# ----------------------------------------------------------------------
def onUp(self):
pass # 向下键和滚轮向下
# ----------------------------------------------------------------------
def onDown(self):
pass # 向左键
# ----------------------------------------------------------------------
def onLeft(self):
pass # 向右键
# ----------------------------------------------------------------------
def onRight(self):
pass # 鼠标左单击
# ----------------------------------------------------------------------
def onLClick(self, pos):
pass # 鼠标右单击
# ----------------------------------------------------------------------
def onRClick(self, pos):
pass # 鼠标左释放
# ----------------------------------------------------------------------
def onLRelease(self, pos):
pass # 鼠标右释放
# ----------------------------------------------------------------------
def onRRelease(self, pos):
pass # 画图
# ----------------------------------------------------------------------
def onPaint(self):
pass ########################################################################
# 选择缩放功能支持
########################################################################
class CustomViewBox(pg.ViewBox):
# ----------------------------------------------------------------------
def __init__(self, parent, *args, **kwds):
pg.ViewBox.__init__(self, *args, **kwds)
self.parent = parent
# 拖动放大模式
# self.setMouseMode(self.RectMode) ## 右键
# ----------------------------------------------------------------------
def mouseClickEvent(self, ev): if ev.button() == QtCore.Qt.RightButton:
self.contextMenuEvent(ev) # 右键菜单
# if ev.button()==QtCore.Qt.LeftButton:
# self.autoRange()#右键自适应
# 重载方法mousePressEvent(self,event),即鼠标点击事件方法
# ----------------------------------------------------------------------
def mousePressEvent(self, event): pg.ViewBox.mousePressEvent(self, event) # 重载方法mouseDragEvent(self,event),即拖动事件方法
def mouseDragEvent(self, ev, axis=None):
# if ev.start==True and ev.finish==False: ##判断拖拽事件是否结束
pos = ev.pos()
lastPos = ev.lastPos()
dif = pos - lastPos rect = self.sceneBoundingRect() pianyi = dif.x() * self.parent.countK * 2 / rect.width() self.parent.index -= int(pianyi)
self.parent.index = max(self.parent.index, 60)
xMax = self.parent.index + self.parent.countK ##
xMin = self.parent.index - self.parent.countK
if xMin < 0:
xMin = 0 # self.parent.plotAll(False, xMin, xMax) #注释原因：拖动事件不需要先绘制图形界面 pg.ViewBox.mouseDragEvent(self, ev, axis)
# ## 重载方法resizeEvent(self, ev) def resizeEvent(self, ev):
self.linkedXChanged()
self.linkedYChanged()
self.updateAutoRange()
self.updateViewRange()
self._matrixNeedsUpdate = True
self.sigStateChanged.emit(self)
self.background.setRect(self.rect())
self.sigResized.emit(self)
self.parent.refreshHeight()
###加载指标
def contextMenuEvent(self,ev):
"""打开指标窗口"""
CustomMenu(self.parent) ########################################################################
# 时间序列，横坐标支持
########################################################################
class MyStringAxis(pg.AxisItem):
"""时间序列横坐标支持""" # 初始化
# ----------------------------------------------------------------------
def __init__(self, xdict, *args, **kwargs):
pg.AxisItem.__init__(self, *args, **kwargs)
self.minVal = 0
self.maxVal = 0
self.xdict = xdict
self.x_values = np.asarray(xdict.keys())
self.x_strings = xdict.values()
self.setPen(color=(255, 255, 255, 255), width=0.8)
self.setStyle(tickFont=QFont("Roman times", 10, QFont.Bold), autoExpandTextSpace=True) # 更新坐标映射表
# ----------------------------------------------------------------------
def update_xdict(self, xdict):
self.xdict.update(xdict)
self.x_values = np.asarray(self.xdict.keys())
self.x_strings = self.xdict.values() # 将原始横坐标转换为时间字符串,第一个坐标包含日期
# ----------------------------------------------------------------------
def tickStrings(self, values, scale, spacing):
strings = []
for v in values:
vs = v * scale
if vs in self.x_values:
vstr = self.x_strings[np.abs(self.x_values - vs).argmin()]
if (isinstance(vstr, (str))):
vstr = vstr
else:
vstr = vstr.strftime('%Y-%m-%d %H:%M:%S')
else:
vstr = ""
strings.append(vstr)
return strings右键菜单加载指标代码：
###加载指标
def contextMenuEvent(self,ev):
"""打开指标窗口"""
CustomMenu(self.parent)# encoding: UTF-8
from vnpy.trader.uiQt import QtGui, QtWidgets, QtCore, BASIC_FONT
from qtpy.QtCore import Qt,QRect
from qtpy.QtWidgets import QApplication, QWidget,QPushButton,QMenu
from qtpy.QtGui import QPainter, QPainterPath, QPen, QColor, QPixmap, QIcon, QBrush, QCursor
from vnpy.trader import vtText
from vnpy.event import Event
import qdarkstyle #Qt黑色主题
from vnpy.trader.IndicatorsFun.indicatorsManage import IndicatorsFunManage import sys
class CustomMenu( QtWidgets.QPushButton):
"""合约管理组件"""
signal = QtCore.Signal(type(Event()))
# ----------------------------------------------------------------------
def __init__(self,parent):
"""Constructor"""
super(CustomMenu, self).__init__()
self.parent=parent # self.initUi()
self.initMenu()
#-----------------------------------------------------------------------
def initMenu(self):
self.setStyleSheet("QMenu{background:purple;}"
"QMenu{border:1px solid lightgray;}"
"QMenu{border-color:green;}"
"QMenu::item{padding:0px 20px 0px 15px;}"
"QMenu::item{height:30px;}"
"QMenu::item{color:blue;}"
"QMenu::item{background:white;}"
"QMenu::item{margin:1px 0px 0px 0px;}" "QMenu::item:selected:enabled{background:lightgray;}"
"QMenu::item:selected:enabled{color:white;}"
"QMenu::item:selected:!enabled{background:transparent;}" "QMenu::separator{height:50px;}"
"QMenu::separator{width:1px;}"
"QMenu::separator{background:white;}"
"QMenu::separator{margin:1px 1px 1px 1px;}" "QMenu#menu{background:white;}"
"QMenu#menu{border:1px solid lightgray;}"
"QMenu#menu::item{padding:0px 20px 0px 15px;}"
"QMenu#menu::item{height:15px;}"
"QMenu#menu::item:selected:enabled{background:lightgray;}"
"QMenu#menu::item:selected:enabled{color:white;}"
"QMenu#menu::item:selected:!enabled{background:transparent;}"
"QMenu#menu::separator{height:1px;}"
"QMenu#menu::separator{background:lightgray;}"
"QMenu#menu::separator{margin:2px 0px 2px 0px;}"
"QMenu#menu::indicator {padding:5px;}"
)
self.color = QColor(Qt.gray)
self.opacity = 1.0
''''''' 创建右键菜单 '''
# 必须将ContextMenuPolicy设置为Qt.CustomContextMenu
# 否则无法使用customContextMenuRequested信号
self.setContextMenuPolicy(Qt.CustomContextMenu)
self.customContextMenuRequested.connect(self.showContextMenu) # 创建QMenu
self.contextMenu = QMenu(self)
self.trendMenu=self.contextMenu.addMenu(u"趋势分析指标")
self.swingMenu = self.contextMenu.addMenu(u"摆动分析")
self.amountMenu = self.contextMenu.addMenu(u"量仓分析")
# 添加二级菜单 #趋势分析指标
self.actionSAR= self.trendMenu.addAction(u'SAR')
self.actionSAR.triggered.connect(lambda: self.parent.initIndicator(u"SAR")) self.actionBOLL = self.trendMenu.addAction(u'BOLL')
self.actionBOLL.triggered.connect(lambda: self.parent.initIndicator(u"BOLL")) self.actionMA = self.trendMenu.addAction(u'MA')
self.actionMA.triggered.connect(lambda: self.parent.initIndicator(u"MA")) #摆动分析
self.actionCCI = self.swingMenu.addAction(u'CCI')
self.actionCCI.triggered.connect(lambda: self.parent.initIndicator(u"CCI"))
self.actionROC = self.swingMenu.addAction(u'ROC')
self.actionROC.triggered.connect(lambda: self.parent.initIndicator(u"ROC")) ##量仓分析
self.actionOPI = self.amountMenu.addAction(u'OPI')
self.actionOPI.triggered.connect(lambda: self.parent.initIndicator(u"OPI")) ##成交量分析
self.actionVOL = self.amountMenu.addAction(u'CJL')
self.actionVOL.triggered.connect(lambda: self.parent.initIndicator(u"CJL")) self.contextMenu.exec_(QCursor.pos()) # 在鼠标位置显示
#添加二级菜单 def showContextMenu(self, pos):
'''''
右键点击时调用的函数
'''
# 菜单显示前，将它移动到鼠标点击的位置
# self.contextMenu.move(self.pos() + pos)
self.contextMenu.show()
self.contextMenu.exec_(QCursor.pos())# encoding: UTF-8
from vnpy.trader.vtConstant import (EMPTY_STRING, EMPTY_UNICODE,
EMPTY_FLOAT, EMPTY_INT)
from vnpy.trader.vtFunction import getJsonPath,getTempPath
import numpy as np
import pandas as pd
import json
import talib
from vnpy.trader.indicator.SAR import *
import pyqtgraph as pg import os
import importlib
import traceback from .algo import INDICATORS_CLASS,sarAlgo,bollAlgo ###################切换指标##########################
class IndicatorsFunManage(object):
settingFileName = 'Indicators_setting.json'
settingfilePath = getJsonPath(settingFileName, __file__)
def __init__(self, parent):
self.indicators_seeting=None # 指标配置文件
self.parent = parent
self.indicatorsFunc = {} # 添加指标
# 读取本地指标配置文件
with open(self.settingfilePath) as f:
self.indicators_seeting = json.load(f) def RemoveIndicators(self,name):
if self.indicatorsFunc.has_key(name):
removeFunc = self.indicatorsFunc[name]
removeFunc.remove() def getYRange(self,xMin,xMax,location):
if self.indicatorsFunc:
for indicators in self.indicatorsFunc.values():
if indicators.base.figure == location:
return indicators.getYRange(xMin, xMax) return 0,1 def addIndicators(self,name):
if self.indicatorsFunc.has_key(name):
return if not (self.indicatorsFunc.has_key(name)):
indicatorsInfo = self.indicators_seeting[name]
figure =indicatorsInfo["location"]
if self.indicatorsFunc:
for indicators in self.indicatorsFunc.values():
if indicators.base.figure == figure:
indicators.remove()
del self.indicatorsFunc[indicators.base.name]
break
indicator = self.startFun(indicatorsInfo, name)
if indicator:
self.indicatorsFunc[name] = indicator
indicator.addIndicators() def updateIndicators(self):
if self.indicatorsFunc:
for indicators in self.indicatorsFunc.values():
indicators.updateIndicators() def getIndicatorsHtml(self,figure,index):
if self.indicatorsFunc:
for indicators in self.indicatorsFunc.values():
if indicators.base.figure == figure:
html = indicators.getIndicatorsHtml(index)
return html def startFun(self,indicatorsInfo,name):
"""载入算法"""
try:
className = indicatorsInfo["className"]
except Exception, e:
print (u'载入指标算法出错：%s' % e) # 获取算法类
alogClass = INDICATORS_CLASS.get(className, None)
return self.callIndicatorsFunc(alogClass, self.parent, indicatorsInfo, name)
if not alogClass:
print(u'找不到指标算法类：%s' % className) return None # ---------------------------------------------------------------------- def callIndicatorsFunc(self, func, parent, indicatorsInfo, name):
"""调用策略的函数，若触发异常则捕捉"""
try:
if parent:
return func(parent, indicatorsInfo, name)
#self.indicatorsFunc[name] = self.func except Exception:
# 停止类，修改状态为未初始化 print(u'算法%s触发异常已停止', traceback.format_exc())指标配置文件：
{
"SAR":{"className":"sarAlgo","location":"mainfigure"},
"BOLL":{"className":"bollAlgo", "location":"mainfigure","param":{"N":20,"M":20,"P":2}},
"CCI":{"className":"cciAlgo", "location":"vicefigure2","param":{"N":21}},
"MA":{"className":"maAlgo", "location":"mainfigure","param":{"N1":3,"N2":5,"N3":8,"N4":13,"N5":21,"N6":34,"algo":"EMA"}},
"OPI":{"className":"opiAlgo", "location":"vicefigure2"},
"CJL":{"className":"cjlAlgo", "location":"vicefigure1"},
"ROC":{"className":"rocAlgo", "location":"vicefigure1","param":{"N":10}} }指标函数：
布林通道指标;
# encoding: UTF-8
import numpy as np
import pandas as pd
from vtIndictors import IndicatorParent
import pyqtgraph as pg
import talib ####################布林通道计算####################################
class bollAlgo(IndicatorParent):
setting_info = None
def __init__(self, parent, indicatorsInfo, name):
IndicatorParent.__init__(self,parent)
self.parent=parent
self.curveOI1 = None
self.curveOI2 = None
self.curveOI3 = None
self.upperline = []
self.midline = []
self.downline = []
self.indictorname = name
self.setting_info = indicatorsInfo self.figure = self.setting_info["location"]
self.plotItem = self.plotItems[self.figure] def addIndicators(self):
hourcloseArray = np.array(self.parent.listClose) N = self.setting_info["param"]["N"]
M= self.setting_info["param"]["M"]
P = self.setting_info["param"]["P"] self.hourBollData_up, self.hourBollData_mid, self.hourBollData_low = self.boll(
hourcloseArray, N,M, P, True) self.addUpper(self.hourBollData_up)
self.addMid(self.hourBollData_mid)
self.addDown(self.hourBollData_low)
self.setIndicatorsData() def addUpper(self, up):
if self.curveOI1:
self.plotItem.removeItem(self.curveOI1)
self.upperline = up
self.curveOI1 = pg.PlotDataItem()
self.curveOI1.setData(y=self.upperline,pen="y")
self.plotItem.addItem(self.curveOI1) def addMid(self, mid):
if self.curveOI2:
self.plotItem.removeItem(self.curveOI2)
self.midline = mid
self.curveOI2 = pg.PlotDataItem()
self.curveOI2.setData(y=self.midline,pen="w")
self.plotItem.addItem(self.curveOI2) def addDown(self, down):
if self.curveOI3:
self.plotItem.removeItem(self.curveOI3) self.downline = down
self.curveOI3 = pg.PlotDataItem()
self.curveOI3.setData(y=self.downline,pen="m")
self.plotItem.addItem(self.curveOI3) # ----------------------------------------------------------------------
def sma(self, npArray, n, array=False):
"""简单均线"""
result = talib.SMA(npArray, n)
if array:
return result
return result[-1] # ---------------------------------------------------------------------- def std(self, npArray, n, array=False):
"""标准差"""
result = talib.STDDEV(npArray, n)
if array:
return result
return result[-1] # ---------------------------------------------------------------------- def boll(self, npArray, n,m, dev, array=False):
"""布林通道"""
mid = self.sma(npArray, n, array)
std = self.std(npArray, m, array) up = mid + std * dev
down = mid - std * dev
return up, mid, down
def updateIndicators(self):
hourcloseArray = np.array(self.parent.listClose)
N = self.setting_info["param"]["N"]
M = self.setting_info["param"]["M"]
P = self.setting_info["param"]["P"]
up, mid,low = self.boll(
hourcloseArray, N, M, P, True)
self.curveOI1.setData(y=up,pen="y")
self.curveOI2.setData(y=mid, pen="w")
self.curveOI3.setData(y=low, pen="m") self.plotItem.addItem(self.curveOI1)
self.plotItem.addItem(self.curveOI2)
self.plotItem.addItem(self.curveOI3)
self.base.indictatorsDatas[0]=up
self.base.indictatorsDatas[1] = mid
self.base.indictatorsDatas[2] = low
self.base.indicatorsElements.append(self.curveOI1)
self.base.indicatorsElements.append(self.curveOI2)
self.base.indicatorsElements.append(self.curveOI3) def setIndicatorsData(self):
#保存当前指标
self.base.name= self.indictorname
self.base.className=self.setting_info["className"]
self.base.plotItem=self.plotItem
self.base.figure=self.figure
self.base.indicatorsElements.append(self.curveOI1)
self.base.indicatorsElements.append(self.curveOI2)
self.base.indicatorsElements.append(self.curveOI3)
self.base.indictatorsDatas.append(self.upperline)
self.base.indictatorsDatas.append(self.midline)
self.base.indictatorsDatas.append(self.downline) def getIndicatorsHtml(self,index):
if len(self.base.indictatorsDatas)>0:
if len(self.base.indictatorsDatas[0])>0: self.up=self.base.indictatorsDatas[0]
self.mid=self.base.indictatorsDatas[1]
self.down = self.base.indictatorsDatas[2]
index = min(index, len(self.up) - 1)
self.indicators_html = "BOLL:up=" + str(self.up[index]) + ",mid=" +str( self.mid[index]) + ",low=" +str(self.down[index])
return self.indicators_html def remove(self):
for i in self.base.indicatorsElements:
self.base.plotItem.removeItem(i) self.curveOI1 = None
self.curveOI2 = None
self.curveOI3 = None
self.upperline = []
self.midline = []
self.downline = []
self.indicators_html=""
self.name=""周期切换代码;
def initMenu(self):
"""初始化菜单"""
# 创建菜单
menubar = self.menuBar()
self.cycle = ["1min", "3min", "5min", "15min", "30min", "1H", "day"]
n = 0
for item in self.cycle:
action = QtWidgets.QAction(item, self)
menubar.addAction(action)
try:
action.triggered[()].connect(
lambda item=item: self.cycleAction(item))#一个空元组用于指定触发的信号。如果没有这样做，触发信号将在默认情况下发送一个布尔值，这将阻塞lambda的项目参数。
finally:
pass载入K线数据接口，使用pandas.DataFrame格式，支持全部载入和实时载入
#----------------------------------------------------------------------
def onBar(self, bar, nWindow = 20):
"""
新增K线数据,K线播放模式
nWindow : 最大数据窗口
""" #----------------------------------------------------------------------
def loadData(self, datas):
"""
载入pandas.DataFrame数据
datas : 数据格式，cols : datetime, open, close, low, high, volume, openInterest
"""展示策略的技术指标和开平仓标记，开平仓标记通过listSig传入
# ----------------------------------------------------------------------
def addSig(self, sig):
"""新增信号图"""
if sig in self.sigPlots:
self.pwKL.removeItem(self.sigPlots[sig])
self.sigPlots[sig] = self.pwKL.plot()
self.sigColor[sig] = self.allColor[0]
self.allColor.append(self.allColor.popleft()) # ----------------------------------------------------------------------
def showSig(self, datas):
"""刷新信号图"""
for sig in self.sigPlots:
self.sigData[sig] = datas[sig] [self.sigPlots[sig].setData(datas[sig], pen=self.sigColor[sig][0], name=sig) \
for sig in self.sigPlots] # if sig in datas] # ----------------------------------------------------------------------
def plotMark(self):
"""显示开平仓信号"""
# 检查是否有数据
if len(self.datas) == 0:
return
for arrow in self.arrows:
self.pwKL.removeItem(arrow)
# 画买卖信号
for i in range(len(self.listSig)):
# 无信号
if self.listSig[i] == None:
continue
# 买信号
elif self.listSig[i] != None:
direction = self.listSig[i]["direction"]
offset = self.listSig[i]["offset"]
price = self.listSig[i]["price"] if direction == "空" and offset == "开仓":
# arrow = pg.ArrowItem(pos=(i, price), angle=-90, brush=(255, 0, 0))
arrow = pg.ArrowItem(pos=(i, price), angle=180, tipAngle=60, headLen=8, tailLen=3, tailWidth=5,
pen={'color': 'w', 'width': 1}, brush='r')
elif direction == "多" and offset == "开仓":
# arrow = pg.ArrowItem(pos=(i, price), angle=90, brush=(255, 0, 0))
arrow = pg.ArrowItem(pos=(i, price), angle=180, tipAngle=60, headLen=8, tailLen=3, tailWidth=5,
pen={'color': 'w', 'width': 1}, brush='b')
elif direction == "空" and offset == "平仓":
# arrow = pg.ArrowItem(pos=(i, price), angle=-90, brush=(0, 0, 255))
arrow = pg.ArrowItem(pos=(i, price), angle=0, tipAngle=40, headLen=8, tailLen=None, tailWidth=8,
pen={'color': 'w', 'width': 1}, brush='y')
elif direction == "多" and offset == "平仓":
# arrow = pg.ArrowItem(pos=(i, price), angle=90, brush=(0, 0, 255))
arrow = pg.ArrowItem(pos=(i, price), angle=0, tipAngle=40, headLen=8, tailLen=None, tailWidth=8,
pen={'color': 'w', 'width': 1}, brush='y')
self.pwKL.addItem(arrow)
self.arrows.append(arrow)代码较多，大家可以直接到GitHub下载开源源码查看欢迎加入QQ交流群： 538665416（免费提供，期货，期权数据）
Python交互K线工具 K线核心功能+指标切换的更多相关文章
- 统计学习方法与Python实现（二）——k近邻法
统计学习方法与Python实现(二)——k近邻法 iwehdio的博客园:https://www.cnblogs.com/iwehdio/ 1.定义 k近邻法假设给定一个训练数据集,其中的实例类别已定 ...
- Python聚类算法之基本K均值实例详解
Python聚类算法之基本K均值实例详解 本文实例讲述了Python聚类算法之基本K均值运算技巧.分享给大家供大家参考,具体如下: 基本K均值 :选择 K 个初始质心,其中 K 是用户指定的参数,即所 ...
- Python实现代码统计工具——终极加速篇
Python实现代码统计工具--终极加速篇 声明 本文对于先前系列文章中实现的C/Python代码统计工具(CPLineCounter),通过C扩展接口重写核心算法加以优化,并与网上常见的统计工具做对 ...
- ipython是python的交互式shell工具
ipython: 是python的交互式shell工具,比默认的python shell工具要好用.支持变了自动补全,自动缩进,内置了很多的功能和函数 启动:可以通过cmd来启动该工具 自动补全: I ...
- 《零基础学习Python制作ArcGIS自定义工具》课程简介
Python for ArcGIS Python for ArcGIS是借助Python语言实现ArcGIS自动化行为的综合,它不止是如课程标题所述的“制作ArcGIS自定义工具”,还包括使用Pyth ...
- lintcode 中等题：k Sum ii k数和 II
题目: k数和 II 给定n个不同的正整数,整数k(1<= k <= n)以及一个目标数字. 在这n个数里面找出K个数,使得这K个数的和等于目标数字,你需要找出所有满足要求的方案. 样例 ...
- Python中文繁简体转换工具
Openccpy ___ _____ __ ___ ___ ___ _____ __ __ / __`\/\ '__`\ /'__`\/' _ `\ /'___\ /'___\/\ '__`\/\ \ ...
- Python IDE集成开发工具
Python IDE集成开发工具 Python IDE 本文为大家推荐几款款不错的 Python IDE(集成开发环境),比较推荐 PyCharm,当然你可以根据自己的喜好来选择适合自己的 Pytho ...
- 开发使用mysql的一些必备知识点整理（四）与python交互
与python交互 在熟练使用sql语句的基础上,开始使用python语言提供的模块与mysql进行交互 这是我们在工作中大事要做的事 先学会sql是基础,一定要熟练编写sql语句 安装引入模块 安装 ...
随机推荐
- sed memo 2
配置文件注释过滤 示例文件 [user_00@txyun test]$ cat sed_test # comment aaaaaaaaaaa bbbb #comment cccc dddd fffo ...
- Google word/sheets 常见的使用:
Google Sheets: 1, sheets 里面的单元格设置自动换行: 选中单元格: --> Format --> Text Wrapping --> Wrap(自动换行)/C ...
- Oracle VM Virtual 安装 ubuntu 后设置全屏
按照正常流程在vm中安装了ubuntu之后,发现ubuntu系统无法全屏显示,解决途径如下: 1.在vm中点击设置 2.选择“安装增强功能” 3.正常情况下,我们可以在桌面看到一个光盘图标(文件名:V ...
- Python实现bp神经网络识别MNIST数据集
title: "Python实现bp神经网络识别MNIST数据集" date: 2018-06-18T14:01:49+08:00 tags: [""] cat ...
- asp.net core mvc 在中间件中使用依赖注入问题：System.InvalidOperationException: Cannot resolve scoped service 'IXXXService' from root provider.
今天在弄JWT的时候需要用到用户验证使用一个自己写好的验证,但在出现了:System.InvalidOperationException: Cannot resolve scoped service ...
- MySql 版本
MySql 版本: netformwork 2.0 netformwork 4.0
- WinForm窗体权限控制的简单实现
一.建立两张表 //存放要控制的窗体控件 CREATE TABLE [dbo].[AuthControl] ( [Id] INT IDENTITY (1, 1) NOT NULL, [NiceName ...
- ok6410 nandflash 启动uboot 超过256k怎么办
1＼在调试ok6410 nandflash启动uboot时,需要添加调试信息,导致uboot大于256k 2\需要修改下面几个地方 参考资料 在uboot中可以添加文字菜单,但是不够美观. 利用pho ...
- Linux基础命令---uname显示计算机名称
uname uname指令用来显示计算机硬件以及操作系统的相关信息,例如计算机名.内核版本.硬件架构. 此命令的适用范围:RedHat.RHEL.Ubuntu.CentOS.Fedora.SUSE.o ...
- 高版本mysql8.0解压版安装步骤
解压版安装操作官网下载: mysql-installer-community-8.0.12.0.msi如上操作: http://www.cnblogs.com/elfin/p/9429877.html ...