47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
"""
|
|
Demonstrates the usage of DateAxisItem in a layout created with Qt Designer.
|
|
|
|
The spotlight here is on the 'setAxisItems' method, without which
|
|
one would have to subclass plotWidget in order to attach a dateaxis to it.
|
|
|
|
"""
|
|
import initExample ## Add path to library (just for examples; you do not need this)
|
|
|
|
import sys
|
|
import time
|
|
import os
|
|
|
|
import numpy as np
|
|
import pyqtgraph as pg
|
|
from pyqtgraph.Qt import QtWidgets, QtCore, loadUiType
|
|
|
|
pg.setConfigOption('background', 'w')
|
|
pg.setConfigOption('foreground', 'k')
|
|
|
|
BLUE = pg.mkPen('#1f77b4')
|
|
|
|
path = os.path.dirname(os.path.abspath(__file__))
|
|
uiFile = os.path.join(path, 'DateAxisItem_QtDesigner.ui')
|
|
Design, _ = loadUiType(uiFile)
|
|
|
|
class ExampleApp(QtWidgets.QMainWindow, Design):
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.setupUi(self)
|
|
now = time.time()
|
|
# Plot random values with timestamps in the last 6 months
|
|
timestamps = np.linspace(now - 6*30*24*3600, now, 100)
|
|
self.curve = self.plotWidget.plot(x=timestamps, y=np.random.rand(100),
|
|
symbol='o', symbolSize=5, pen=BLUE)
|
|
# 'o' circle 't' triangle 'd' diamond '+' plus 's' square
|
|
self.plotWidget.setAxisItems({'bottom': pg.DateAxisItem()})
|
|
self.plotWidget.showGrid(x=True, y=True)
|
|
|
|
app = pg.mkQApp("DateAxisItem_QtDesigner Example")
|
|
window = ExampleApp()
|
|
window.setWindowTitle('pyqtgraph example: DateAxisItem_QtDesigner')
|
|
window.show()
|
|
|
|
if __name__ == '__main__':
|
|
pg.exec()
|