pyqtgraph

I'am trying to plot time serie with pyqtgraph. I've read this , this and this . But i'am not sure how to correctly use it. My plot is a plot widget, and i use it this way: graph.plot(aerosol_data, pen=pg.mkPen(color=colors[count], width=1, style=QtCore.Qt.SolidLine), axisItems={'bottom': TimeAxisItem(orientation='bottom')}) where TimeAxisItem is defined like this: class TimeAxisItem(pg.AxisItem): def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) def tickStrings(self, values, scale, spacing): # PySide's QTime() initialiser fails miserably and dismisses args/kwargs return

Despite not being a proficient GUI programmer, I figured out how to use the pyqtgraph module's ImageView function to display an image that I can pan/zoom and click on to get precise pixel coordinates. The complete code is given below. The only problem is that ImageView can apparently only display a single-channel (monochrome) image. My question: How do I do EXACTLY the same thing as this program (ignoring histogram, norm, and ROI features, which I don't really need), but with the option to display a true color image (e.g., the original JPEG photo)? import numpy as np from pyqtgraph.Qt import

I wish to add functionality such that the user can draw a rectangle over a selection of lines and the graph will refresh such that the lines within the rectangle keep their respective colour and any lines outside turn grey? My code is as follows, and currently zooms on the drawing of a user defined rectangle over the lines, (for 3 lines, my actual code will plot a lot more): from pyqtgraph.Qt import QtGui, QtCore import numpy as np import pyqtgraph as pg pg.setConfigOption('background', 'w') pg.setConfigOption('foreground', 'k') from random import randint class CustomViewBox(pg.ViewBox): def _

I'd like to implement a PyQtGraph PlotWidget into a PySide2 application. With PyQt5 everything works. With PySide2 I get the Error shown at the bottom. I already found out, that there's some work in progress, but also it seems that a few people managed to get this working. However, I was not able yet. I am using Pyqtgraph 0.10 and not the developer branch. Shall I change? What do I need to do? from PySide2.QtWidgets import QApplication, QMainWindow, QGraphicsView, QVBoxLayout, QWidget import sys import pyqtgraph as pg class WdgPlot(QWidget): def __init__(self, parent=None): super(WdgPlot, self

For an electrophysiology data analysis set I need to plot a large 2D array (dim approx 20.000 x 120) of points. I used to embed a Matplotlib widget in my PyQt application, but went looking for other solutions because the plotting took quite long. Still, plotting the data with pyqtgraph also takes much longer then expected, probably because it redraws the widget everytime when using the plot() function. What is the best practice to plot large arrays? The pyqtgraph examples, although extensive, didn't help me much further... import pyqtgraph as pg view = pg.GraphicsLayoutWidget() w1 = view