29 lines
641 B
Python
29 lines
641 B
Python
|
# -*- coding: utf-8 -*-
|
||
|
|
## Add path to library (just for examples; you do not need this)
|
||
|
|
import sys, os
|
||
|
|
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', '..'))
|
||
|
|
|
||
|
|
|
||
|
|
import numpy as np
|
||
|
|
from PyQt4 import QtGui, QtCore
|
||
|
|
import pyqtgraph as pg
|
||
|
|
|
||
|
|
|
||
|
|
app = QtGui.QApplication([])
|
||
|
|
mw = QtGui.QMainWindow()
|
||
|
|
|
||
|
|
p = pg.PlotWidget()
|
||
|
|
mw.setCentralWidget(p)
|
||
|
|
c = p.plot(x=np.sin(np.linspace(0, 2*np.pi, 100)), y=np.cos(np.linspace(0, 2*np.pi, 100)))
|
||
|
|
a = pg.CurveArrow(c)
|
||
|
|
p.addItem(a)
|
||
|
|
|
||
|
|
mw.show()
|
||
|
|
|
||
|
|
anim = a.makeAnimation(loop=-1)
|
||
|
|
anim.start()
|
||
|
|
|
||
|
|
## Start Qt event loop unless running in interactive mode.
|
||
|
|
if sys.flags.interactive != 1:
|
||
|
|
app.exec_()
|