I managed to set the x and y axes separately for the line graph.
It was not possible to install separate axes for QCandlestickSeries.
I need to do two things:
Set separate axes for Candlestickseries to adjust parameter axisX.setTickCount()
Display the x-axis converted datetime to string, instead of indexes
P.S. At least the example on the line graph from my second(2) question will do.
If this is not possible in pyqt5, then also write. So as not to waste time.
```
from PyQt5 import QtCore, QtGui, QtWidgets, QtChart
from PyQt5.QtCore import Qt
from PyQt5.QtChart import *
import math
import numpy as np
import pandas as pd
df = pd.read_csv('file.txt',
index_col='DATE',
parse_dates=True,
infer_datetime_format=True)
date = df.iloc[:, 0].index.date
o = df.iloc[:, 0].values
h = df.iloc[:, 1].values
l = df.iloc[:, 2].values
z = df.iloc[:, 3].values
x = len(z)
x_ = x - 1
qt = [None] * x
for i in range(0, x):
qt[i] = (date[i].strftime("%Y/%m/%d"))
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.step = 30
self._chart_view = QtChart.QChartView()
self.scrollbar = QtWidgets.QScrollBar(
QtCore.Qt.Horizontal,
sliderMoved=self.onAxisSliderMoved,
pageStep=self.step,
)
self.scrollbar.setRange(0, x_)
central_widget = QtWidgets.QWidget()
self.setCentralWidget(central_widget)
lay = QtWidgets.QVBoxLayout(central_widget)
for w in (self._chart_view, self.scrollbar):
lay.addWidget(w)
self._chart = QtChart.QChart()
self._line_serie = QtChart.QLineSeries()
for i in range(0, len(z)):
c_ = z[i]
self._line_serie.append(QtCore.QPointF(i, c_))
min_x, max_x = 0, x_
self._chart.addSeries(self._line_serie)
axisX = QValueAxis()
axisX.setTickCount(5)
axisX.setLabelFormat("%d")
self._chart.addAxis(axisX, Qt.AlignBottom)
self._line_serie.attachAxis(axisX)
axisY = QValueAxis()
#axisY.setLabelFormat("%f")
self._chart.addAxis(axisY, Qt.AlignLeft)
self._line_serie.attachAxis(axisY)
self._chart.legend().hide()
self._chart_view.setChart(self._chart)
self.lims = np.array([min_x, max_x])
self.onAxisSliderMoved(self.scrollbar.value())
self.adjust_axes(1, 31)
def adjust_axes(self, value_min, value_max):
if value_min > 0 and value_max > 0 and value_max <= x_ and value_max > value_min:
self._chart.axisX(self._line_serie).setRange(value_min, value_max)
@QtCore.pyqtSlot(int)
def onAxisSliderMoved(self, value):
value2 = value + self.step
value1 = value
if value2 >= x_:
value2 = x_
value1 = value2 - self.step
self.adjust_axes(math.floor(value1), math.ceil(value2))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())
