Questions tagged [pyqtgraph]
High-performance scientific graphics for PyQt.
pyqtgraph
1,011
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Customizing Y-Axis values in pyqtgraph.ImageItem
I was wondering if it is possible to seek some help on how to customize the y-axis values when plotting an image with ImageItem.
I have a vector for y-axis values (frequencies) that are not linearly ...
- 11
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25
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pyqtgraph: Elegant way to remove a plot from GraphicsLayoutWidget?
I am trying to programmatically add and remove plots to GraphicsLayoutWidget. Adding works as expected via addPlot(row, col) (col is zero for me). Unfortunately there is no removePlot function (which ...
- 315
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15
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Issue with Draggable Curve Segment and Y-Axis Alignment in PyQt5 PlotWidget
I have been struggling with a problem for about a month. I have used ChatGPT-4o during this time, but it hasn't provided a satisfactory solution. The issue is as follows:
When a user clicks on a part ...
- 9
2
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1
answer
27
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How to set the default colour of a PyQtGraph ImageView's Histogram LUT?
PyQtGraph's ImageView widget includes a histogram with:
a moveable region that defines dark and light levels. as well as
the ability to edit a colour gradient.
These two features allow users to edit/...
- 3,272
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How to deselect curve when clicking on background in pyqtgraph
I try to deselect a curve by clicking on the background in a pyqtgraph. So when I click on a curve, it is selecting it and when I click on the background or the curve again, it should deselect it.
If ...
- 17
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42
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How to setup light source position and shading: with Pyqtgraph: GLMeshItem?
I am using pyqtgraph.opengl for graphics and display of STL files on my UI. I am using phong shading technique called 'shaded' param with pyqtgraph.opengl.GLMeshItem API. But I am having a dark color ...
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29
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Whenever i changing the widget i am facing the issue of delay in overall performance and user interface while using serial COM
I'm using this PyQt5 code on the Raspberry Pi 4.
When I run the code, I receive and plot analog values on the plot_widget via serial communication.
If I change the mode or widget, and then attach the ...
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21
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Make a live plotter with pyqtgraph with clear the plott bevor with a black distance to the plott bevor
I want to plott live data with the pyqtgraph. This is a minimal code sample:
from random import randint
import pyqtgraph as pg
from PyQt5 import QtCore, QtWidgets
class MainWindow(QtWidgets....
- 1
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pyqtgraph - using setYLink does not align plots Y axis
I am using self.vp_plot.setYLink(self.main_plot) however the axis values are not lining up even though the y axis is in fact linked on mouse drag.
This happens if setting a title on one of the plots ...
- 16.7k
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15
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Align Y axis start for subplots in pyqtgraph
I want to align the line indicating the start of the Y axis. As you can see in the image the middle plot is out of line with the top and bottom plot. Apparently because they take up varying amount ...
- 16.7k
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42
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PyQtGraph: Retrieve size of GLTextItem
I'm using pyqtgraph to plot radar data (in 2D and 3D) using a GLViewWidget. Adding and visualizing the data in 2D and 3D works well.
I also added text labels using GLTextItem, but they are a bit ...
-1
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40
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Realtime plotting using PyQtGraph for excessively huge amount of serial data
I am trying to plot serial data that is voltage and current obtained from arduino using python's library PyQt using the graph widget - PlotWidget from PyQtGraph in real time.
So, data is continuously ...
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1
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37
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Puffer data for live-plotting via pyqtgraph
I have an dataframe, i import this dataframe in an python modul and then i plott them live. Each dataframe has 100 numbers. For this i use pyqtgraph:
def update_plot_data(self):
from ...
-1
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1
answer
53
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Matplotlib to pyqtgraph
Does anyone have a converter that takes working plots created with matplotlib and produce a reasonable equivalent in pyqtgraph? Seems like it should be possible. It would save me a lot of time.
I'm ...
2
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173
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PySide6/PyQtGraph real-time plotting of sensor data
I am creating PySide6 app and I need to plot a vast amount of sensor data. The aim is that user has the feeling that the system is working real-time-ish. For example, if they tap a table next to an ...
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