Pyqtgraph api.

• Pyqtgraph api This has two important consequences: 1) virtually anything you want to draw can be easily accomplished using the functionality provided by Qt. mouseEvents. TableWidget ( * args, ** kwds,) [source] # Extends QTableWidget with some useful functions for automatic data handling and copy / export context menu. The display format is adjusted automatically depending on the current time density (seconds/point) on the axis. LabelItem# class pyqtgraph. Image handling in pyqtgraph is much more complete (again, no ROI widgets in qwt). parametertree import Parameter, ParameterTree, parameterTypes as ptypes def a (x = 5, y = 6): QtWidgets. setConfigOptions (** opts,) [source] # Set global configuration options. If non-keyword arguments are used, they will be interpreted as setData(y) for a single argument and setData(x, y) for two arguments. Global Configuration Options; PyQtGraph’s Helper Functions; PyQtGraph’s Graphics Items PyQtGraph’s Helper Functions; PyQtGraph’s Graphics Items; PyQtGraph’s Widgets; PyQtGraph’s 3D Graphics System; Color Maps; Parameter Trees; Dock Area Module; GraphicsScene and Mouse Events; API Reference; Visual Programming with Flowcharts. 解读官方API-如何使用pyqtgraph 这里有一些使用pyqtgraph的建议方法: 从交互式shell(python -i,ipython等) 从应用程序显示弹出窗口 在PyQt应用程序中嵌入小 Qt 2D绘图 渐变填充（三种渐变方式） Introduction# What is pyqtgraph?# PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in engineering and science applications. Not sure if this is meant to be part of pyqtgraph's public API, but I was able to get row stretching of items in a pg. This user guide provides an in-depth description of PyQtGraph features and how they apply to common scientific visualization tasks. Transform3D) – Tranformation from the local coordinate system to the parent’s. setConfigOption (opt, value,) [source] # pyqtgraph. ComboBox ( parent = None, items = None, default = None,) [source] # Extends QComboBox to add extra functionality. 0dev0 documentation polars API 参考： Python API reference — Polars documentation 确定要放弃本次机会？ Feb 19, 2024 · Because PyQtGraph uses Qt's QGraphicsScene to render the graphs, we have access to all the standard Qt line and shape styling options for use in plots. Handles dict mappings – user selects a text key, and the ComboBox indicates the selected value. Can automatically format and display a variety of data types (see setData() for more informatio User Guide#. As indicated by the documentation for Parameters and Parameter Trees, a Parameter is commonly used to expose a value to the user without burdening developers with GUI representations. addWidget(plt) PyQtGraph 绘图 PyQtGraph 绘图 本文目录 数据绘图方案 PyQtGraph 安装 官方文档 和 案例 曲线图 示例 清除画图区，重新绘制 PlotWidget 和 GraphicsLayoutWidget 嵌入到Qt程序界面中 柱状图 绘制多个图形 实时更新图 API# class pyqtgraph. These are not limits; limits can be set by specifying bounds. Used By Here is a partial listing of some of the applications that make use of PyQtGraph! Jul 1, 2022 · PyQtGraph uses Qt's QGraphicsScene to render the graphs. This guide is intended to help you get started with contributing to the project. Jun 19, 2022 · 安装pip3 install pyqtgraph 在PyQtGraph中，有几种绘制图形的方法： pyqtgraph. May 1, 2025 · Finance Plot. The new Dock object to add. PyQtGraph is intended for use in mathematics / scientific / engineering applications. :class: GradientWidget <pyqtgraph. PyQtGraph plots can be easily embedded into PyQt or PySide applications. setTransform ( tr,) [source] # Set the local transform for this object. Signal Emitted when the mouse is clicked over the scene. The text to display. addPlot()：添加一个新 Oct 17, 2020 · Also see answer here: Unequal sizes for subplots in pyqtgraph. ) and 2) to provide tools to aid in rapid application development (for example, property trees such as used i charts crypto plots graphs cryptocurrency plotting technical-analysis charting technical-indicators pyqtgraph ta candlestick-chart tradingview binance binance-api pyqt6 finplot Updated May 23, 2024 Dec 17, 2014 · import numpy as np import pyqtgraph as pg import pyqtgraph. Developer guide. ImageItem ( image: ndarray | None = None, ** kargs,) [source] # Graphics object used to display image data. ImageExporter(plt. ) PyQtGraph displays 2D numpy arrays as images and provides tools for determining how to translate between the numpy data type and RGB values on the screen. Fast data visualization and GUI tools for scientific / engineering applications - Releases · pyqtgraph/pyqtgraph brush [source] #. I could set the environment variable to PyQt5, but I go back and forth between Anaconda environments with PyQt4 and PyQt5 so I would rather not have to manually set that each time. default=20 GridItem# class pyqtgraph. Oct 12, 2020 · PyQtGraph uses Qt's QGraphicsScene to render the graphs. ) and second is to provide tools to aid in rapid application development (for example, property A color map defines a relationship between scalar data values and a range of colors. The item will be automatically repositioned if the parent is resized. These widgets can generally be used in any Qt application and provide functionality that is frequently useful in science and engineering applications. x0, x1 specify left and right edges of the bar, respectively. Jan 16, 2019 · PyQtGraph不需要以任何方式“built”或编译。 pyqtgraph的软件包还有其他几种形式： Anaconda：conda install pyqtgraph; Debian，Ubuntu和类似的Linux：使用 ``apt install python-pyqtgraph`` 或下载在pyqtgraph官网网页顶部的. ImageItem can render images with 1, 3 or 4 channels, use lookup tables to apply false colors to images, and users can either set levels limits, or rely on the auto-sampling. opengl 3D system entirely. arange(10)) img = pg. Arguments: dock. Arguments: values. w (int or None, optional) – If None, then the value will be determined automatically based on the size of the tick text, by default None. It is presently in early development and has a narrower scope than PyQtGraph--it will focus on visualization without the GUI toolkit features provided by PyQtGraph. Oct 13, 2024 · 【pyqtgraph绘图】如何使用pyqtgraph. ImageView. deb文件。 Arch Linux：安装包（感谢 windel）。 GLGraphItem# class pyqtgraph. Qt import QtWidgets import pyqtgraph as pg from pyqtgraph. org/documentation/plotting. Its primary goals are 1) to provide fast, interactive graphics for displaying data (plots, video, etc. Get the QBrush used to draw the legend background. examples. GraphicsView# class pyqtgraph. PColorMeshItem ( * args, ** kwargs,) [source] # Bases: GraphicsObject __init__ ( * args, ** kwargs,) [source] # Create a pseudocolor The reference guide contains a detailed description of the PyQtGraph API. If specified, this overrides both text and color. mkColor) html. However, PyQtGraph provides an API for using these to draw plots and manage the plot canvas. Despite being written entirely in python, the library is fast due to its heavy leverage of numpy for number crunching, Qt's GraphicsView framework for 2D display, and OpenGL for 3D display. parameterTypes. flowchart. setWidth ( w: int | None = None,) [source] # Set the width of this axis reserved for ticks and tick labels. . If a ColorMap is defined for ColorBarItem, this will be assigned to the PyQtGraph’s 3D Graphics System# The 3D graphics system in pyqtgraph is composed of a view widget and several graphics items (all subclasses of GLGraphicsItem) which can be added to a view widget. GraphicsLayoutWidget with the following: The following result gave plot0 to be twice as large as plot1. This enables construction of custom Parameter classes by name in create(). Provides The easiest way to learn PyQtGraph is to browse through the examples; run python -m pyqtgraph. Back to top. On this page Nov 7, 2022 · PyQtGraph使用Qt的QGraphicsScene 来渲染图形。这让我们可以访问所有标准的Qt线条和形状样式选项，以便在绘图中使用。然而，PyQtGraph提供了一个API来使用这些选项来绘制绘图和管理绘图画布。 下面我们将介绍你在创建和定制你自己的绘图时需要的最常见的造型功能。 Dec 27, 2023 · PyQtGraph leverages QT‘s powerful graphics architecture for fast plotting while providing a simplified API. image (* args, ** kargs,) [source] # Create and return an ImageView Will Embedding PyQtGraph as a sub-package of a larger project# When writing applications or python packages that make use of pyqtgraph, it is most common to install pyqtgraph system-wide (or within a virtualenv) and simply call import pyqtgraph from within your application. RemoteGraphicsView. A Node subclass implements at least: A list of input / output terminals and their properties previous. Despite being written entirely in python, the library is very fast due to its heavy leverage of numpy for number crunching, Qt’s GraphicsView framework for 2D display, and OpenGL Jan 15, 2024 · Because PyQtGraph uses Qt's QGraphicsScene to render the graphs, we have access to all the standard Qt line and shape styling options for use in plots. registerParameterType ( name, cls, override = False,) [source] # Register a parameter type in the parametertree system. GradientWidget> provides a widget with a GradientEditorItem that can be added to a GUI. Each keyword argument sets one global option. Provides API Reference¶. PyQtGraph provides an API for using these options to draw plots and manage the plot canvas. Built-in Parameter Types# Parameters# class pyqtgraph. plot()：创建一个新的绘图窗口来显示数据； PlotWidget. It is presently based on PyQwt and thus comes with bounds [source] #. 0) specifying spot colors OR a tuple of floats specifying a single color for all spots. ColorMap can also be used a convenient source of colors from a consistent palette image (pyqtgraph. GridItem ( pen = 'default', textPen = 'default',) [source] # Bases: UIGraphicsItem Displays a rectangular grid of lines indicating major divisions within a coordinate system. plot(), PlotWidget, and :meth :GraphicsLayout. PyQtGraph depends on: Python 3. Note: To display text inside a scaled view (ViewBox, PlotWidget, etc) use TextItem Matplotlib (to my knowledge) does not include many of pyqtgraph’s features such as image interaction, volumetric rendering, parameter trees, flowcharts, etc. The reference guide contains a detailed description of the PyQtGraph API. height, width, top, bottom, left, right, and beam may be numpy arrays, single values, or None to disable. exporters plt = pg. Given a list of field names, the user may specify multiple criteria for assigning colors to each record in a numpy record array. May 6, 2021 · Finance Plot. LayoutWidget ( parent = None,) [source] # Convenience class used for laying out QWidgets in a grid. 1D arrays of values specifying the x,y positions of vertexes in the grid. 14. plot()) pyqtgraph. Set a string prefix. DateAxisItem ( orientation = 'bottom', utcOffset = None, ** kwargs,) [source] # Bases: AxisItem An AxisItem that displays dates from unix timestamps. addPlot()：添加一个新 PyQtGraph’s Helper Functions# Simple Data Display Functions# pyqtgraph. Simple Data Display Functions PyQtGraph’s Widgets# PyQtGraph provides several QWidget subclasses which are useful for building user interfaces. ScatterPlotItem ( * args, ** kargs,) [source] # Displays a set of x/y points. ImageItem, class:~pyqtgraph. next. Assigns an item or list of items to be represented and controlled. Provides Interactive Parameters#. Provides May 11, 2018 · 安装pip3 install pyqtgraph 在PyQtGraph中，有几种绘制图形的方法： pyqtgraph. pos() to get the click position relative to the item that was clicked on, or ev. It is intended to be a reference for users who are already familiar with the basics of PyQtGraph. dy. CHAPTER 1 Introduction 1. Signal (object, object) sigTransformChanged = QtCore. Note that using this option may have a significant performance cost. GradientEditorItem ( * args, ** kargs,) [source] # Bases: TickSliderItem An item that can be used to define a color gradient. On an Intel Core i9-10900K @ 3. MouseClickEvent (pressEvent, double = False,) [source] # Instances of this class are delivered to items in a GraphicsScene via their mouseClickEvent() method when the item is clicked. exporters. Provides QPen. If these are omitted, then the values will be assumed to be integers. PColorMeshItem,when using pyqtgraph. The library’s convenience functions such as pyqtgraph. All other arguments are used to plot data. Jan 5, 2024 · pyqtgraph 教程 简介. PyQtGraph is a pure-python graphics and GUI library built on PyQt5/PySide2 and numpy. examples to launch the examples application. ActionParameter ( ** opts,) [source] # Used for displaying a button within the tree. Flowchart; flowchart. clear [source] #. Jan 16, 2019 · 解读官方API-如何使用pyqtgraph 这里有一些使用pyqtgraph的建议方法： 从交互式shell（python -i，ipython等） 从应用程序显示弹出窗口 在PyQt应用程序中嵌入小部件 命令行使用 PyQtGraph使得从命令行可视化数据变得非常容易。注意： 上面的例子将打开一个 Oct 10, 2018 · 文章浏览阅读3w次，点赞64次，收藏330次。一、介绍1. ScatterPlotItem# class pyqtgraph. plot() create PlotDataItem objects. Ctrl+K. class PlotWidget (GraphicsView): # signals wrapped from PlotItem / ViewBox sigRangeChanged = QtCore. A QPointF or (x,y) sequence indicating what region of the text box will be anchored to the item’s position. examples pyqtgraph. First create a PlotWidget, then add it to your PyQt application like any other widget: plt = pg. 0dev0' ### import all the goodies and add some helper functions for easy CLI use import importlib import os import sys import numpy # # pyqtgraph requires numpy ## 'Qt' is a local module; it is intended mainly to cover up the differences Feb 7, 2013 · It looks like the issue is that my QT_API environment variable isn't set and the module defaults to PyQt4. setAngle ( angle,) [source] # Takes angle argument in degrees. flowchart. a single argument to pass to pg. Distance to pan in x direction. pyqtgraph. MouseDragEvent# class pyqtgraph. ハイレベルなAPIに頼りすぎ. addPlot()：添加一个新 GraphicsWidget# class pyqtgraph. 1What is pyqtgraph? PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in en- pyqtgraph API 参考：API Reference — pyqtgraph 0. plot(np. 7+ A Qt library such as PyQt5, or PySide2. Scientific Graphics and GUI Library for Python. PyQtGraph 是一个用于科学和工程数据可视化的开源库，基于 PyQt 和 NumPy 构建而成。它提供了丰富的绘图工具和交互功能，可以用于创建高性能的实时数据图表、图像显示和信号处理应用。 The colors for intermediate values are determined by interpolating between the two nearest colors in RGB color space. export() Which implies to me that that exporters are working fine, but there is some weird interaction that is going on when they are called from within a pyqt4 widget in the manner that I am Like PyQwt, however, Chaco can be challenging to install on a wide variety of platforms and lacks some of pyqtgraph's more advanced features (although pyqtgraph certainly lacks many of Chaco's features as well). x specifies the x-position of the center of the bar. mkPen. MouseClickEvent. A value of (0,0) indicates the origin, whereas (1, 1) indicates the upper-right corner, regardless of the ROI’s size. This gives us access to all the standard Qt line and shape styling options for use in plots. Most applications that use the flowchart system will find the built-in library insufficient and will thus need to implement custom Node classes. unread, Arguments: dx. Embedding PyQtGraph in Apps. Global Configuration Options; PyQtGraph’s Helper Functions; PyQtGraph’s Graphics Items BarGraphItem# class pyqtgraph. Parameter# pyqtgraph. width specifies distance from x0 to x1. plot (* args, ** kargs) [source] # Create and return a PlotWidget Accepts a title argument to set the title of the window. Length of the arrow head, from tip to base. Introduction# What is pyqtgraph?# PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in engineering and science applications. getLabel ( plotItem,) [source] # Return the labelItem inside the legend for a given plotItem Jan 16, 2019 · 解读pyqtgraph官方API-在pyqtgraph中绘图 参考： http://www. It is intended for use in mathematics / scientific / engineering applications. opengl. ) The gray lines with the diamonds indicate an aggregation relation. 5] returns a QColor corresponding to the center of ColorMap cm. clearMarkers [source] #. PyQtGraph’s Widgets; PyQtGraph’s 3D Graphics System; Color Maps; Parameter Trees; Dock Area Module; GraphicsScene and Mouse Events; API Reference; Visual Programming with Flowcharts; Point; Transform3D; UML class diagram pyqtgraph. ) and 2) to provide tools to aid in rapid application development (for example, property trees such as used i Jul 12, 2017 · pyqtgraph automatically adds an item to the legend if it is created with the "name" parameter. To the reference guide. GraphicsWidgetAnchor [source] #. In the long term, we hope VisPy will be able to replace Qt as the rendering engine for 2D graphics, and replace the pyqtgraph. PColorMeshItem Here's my code, the axis range is correct, but there's no image self. getConfigOption (opt) [source] # Return the value of a single global configuration option. This API allows NumPy and SciPy to Oct 6, 2024 · 本文详细介绍了 PyQtGraph 库的安装方法、主要特性、基本和高级功能，以及实际应用场景。希望本文能帮助大家全面掌握 PyQtGraph 库的使用，并在实际项目中发挥其优势。无论是在数据监控、科学研究还是金融数据分析中，PyQtGraph 库都将是一个得力的工具。_pyqtgraph Using the simple example below you can compare the performance of PyQtGraph to Matplotlib, simply change the if True: to False:. GraphicsWidgetAnchor# class pyqtgraph. color. This library is intended to cover some of the most commonly-used functions as well as provide examples for some more exotic Node types. setColor ( c,) [source] # Set the default color to use when no vertex or face colors are specified. A ColorMap object provides access to the interpolated colors by indexing with a float value: cm[0. It provides a unified interface for displaying plot curves, scatter plots, or both. Below we'll go through the most common styling features you'll need to create and customize your own plots. plotItem) img. The main benefit to this is that pyqtgraph is configured independently of PyQtGraph includes a small library of built-in flowchart nodes. ImageItem, optional) – If provided, control will be automatically linked to the image and changes to the control will be reflected in the image’s appearance. dz. PColorMeshItem# class pyqtgraph. x and y must be numpy arrays specifying the coordinates of data points. GraphicsScene. In a virtualenv (see these instructions if you need to create one): class pyqtgraph. Getting Started User Guide Developer Guide API Reference class pyqtgraph. Parameters: image (ImageItem or list of ImageItem) – Assigns one or more image items to this ColorBarItem. setRange ( r0, r1,) [source] # Set the upper and lower limits for values in the spinbox. Node (name, terminals = None, allowAddInput = False, allowAddOutput = False, allowRemove = True,) [source] # Node represents the basic processing unit of a flowchart. Remove all markers from this line. The black arrows indicate inheritance between two classes (with the parent class always above the child classes. MouseDragEvent ( moveEvent, pressEvent, lastEvent, start = False, finish = False,) [source] # Instances of this class are delivered to items in a GraphicsScene via their mouseDragEvent() method when the item is being mouse-dragged. PyQtGraph’s Widgets. Its primary goals are to provide fast, interactive graphics for displaying data (plots, video, etc. Node; flowchart. Finance Plotter, or finplot, is a performant library with a clean api to help you with your backtesting. Arguments can be any that are valid for mkPen setPrefix (p) [source] #. 0-1. run() This will start a launcher with a list of available examples. It’s main functionality is: Manage placement of ViewBox, AxisItems, and LabelItems setLevel ( level,) [source] # Set the level at which the isocurve is drawn. Default is 0; arrow pointing to the left. scenePos() to get the click position in scene coordinates. When using pyqtgraph. org """ __version__ = '0. BarGraphItem (** opts) [source] # __init__ ( ** opts,) [source] # Valid keyword options are: x, x0, x1, y, y0, y1, width, height, pen, brush. (see PlotItem. HoverEvent# class pyqtgraph. The only adjustment needed in the above code would be as follows PyQtGraph’s parameter tree system works similarly to the model-view architecture used by some components of Qt: A Parameter is a purely data-handling class that exists independent of any graphical interface. Use ev. accept [source] # An item should call this method if it can handle the event. This may also be set via setImageItem() . pos (length-2 sequence) The position of the handle relative to the shape of the ROI. String that determines the direction of dx,dy,dz. import sys import qdarkstyle import os # set the environment variable to use a specific wrapper # it can be set to PyQt, PyQt5, PySide or PySide2 (not implemented yet) os. ColorMapWidget ( parent = None,) [source] # This class provides a widget allowing the user to customize color mapping for multi-column data. addPlot>. Jan 17, 2024 · PyQtGraph是一个用于Python的交互式图形和GUI库，基于PyQt和Qt库。 它特别适合于处理大量数据，能够以高性能的方式绘制图形。 此外，PyQtGraph还提供了丰富的交互功能，如缩放和平移等，使得用户能够更加深入地探索数据。 """ PyQtGraph - Scientific Graphics and GUI Library for Python www. GLGraphItem ( parentItem = None, ** kwds,) [source] # A GLGraphItem displays graph information as a set of nodes connected by lines (as in ‘graph theory’, not ‘graphics’). pyqtgraph. orientation. It's optionated with good defaults, so you can start doing your work without having to setup plots, colors, scales, autoscaling, keybindings, handle panning+vertical zooming (which all non-finance libraries have problems with). If faces is not specified, then this will instead be interpreted as (Nf, 3, 3) array of coordinates. a record array of length M with fields (red, green, blue, alpha, width). relative. PyQtGraph’s Widgets; PyQtGraph’s 3D Graphics System; Color Maps; Parameter Trees; Dock Area Module; GraphicsScene and Mouse Events; API Reference; Visual Programming with Flowcharts; Point; Transform3D; UML class diagram Mar 17, 2021 · はじめになぜか急にアナログ時計アプリが欲しくなったので衝動的に作りました。せっかく作ったので、作り方を紹介しようと思います。言語はタイトルにある通りPythonです。コード全体はgithubで… Apr 15, 2025 · pyqtgraph官方给的示例居然会报错2333 官方文档传送门:#####pyqtgraph export pyqtgraph支持在可视化窗口中右键保存(Exporting from the GUI)试了一下只能保存为svg格式, 保存为png会闪退不知道是我这里的原因还是这里有bug,我希望直接生成图片(Exporting from the API) 先查看本地site-packages里面有test文件,里面有生成svg的 class pyqtgraph. DateAxisItem# class pyqtgraph. meshDataChanged [source] #. Notes on performance: Line widths greater than 1 pixel affect the performance as discussed in the documentation of PlotDataItem. headLen. PlotDataItem (* args, ** kwargs,) [source] # PlotDataItem is PyQtGraph’s primary way to plot 2D data. setLogMode ( axis, logMode,) [source] # Informs ViewBox that log mode is active for the specified axis, so that the view range cen be restricted previous. Feb 8, 2024 · 2. widgets. Distance to pan in z direction. Jul 10, 2023 · PyQtGraph is a plotting library with high performance, cross-platform support and interactivity as its primary objectives. PColorMeshItem. Guide to contributing to PyQtGraph. RemoteGraphicsView ( parent = None, * args, ** kwds,) [source] # Replacement for GraphicsView that does all scene management and rendering on a remote process, while displaying on the local widget. Implements common pre-defined gradients that are customizable by the user. show (bool) If True, then immediately show the widget after it is created. addPlot() <pyqtgraph. If you look at @AdriaanRol code, you see that most of the things are de-spaghettfied and added to the plot. tr (pyqtgraph. position ‘bottom’, ‘top’, ‘left’, ‘right’, ‘above’, or ‘below’ pyqtgraph/pyqtgraph’s past year of commit activity Python 4,072 1,120 414 (5 issues need help) 38 Updated Apr 8, 2025 Dash-User-Contributions Public Forked from Kapeli/Dash-User-Contributions Arguments: vertexes (Nv, 3) array of vertex coordinates. The PyQtGraph library welcomes contributions from the community. Supported “image items”: class:~pyqtgraph. 70 GHz the PyQtGraph code updated at over 1000 FPS while the Matplotlib code updated at 40 FPS. The color of the text (any format accepted by pg. GraphicsView ( parent = None, useOpenGL = None, background = 'default',) [source] # Re-implementation of QGraphicsView that removes scrollbars and allows unambiguous control of the viewed coordinate range. GuiQwt is an interesting project with many advanced features similar to pyqtgraph. RemoteGraphicsView# class pyqtgraph. Return the (minimum, maximum) values allowed when dragging. pyqtgraphはQtの思想を強く受け継いでいるので、この点はほぼクリアしています。vispyもローレベルの実装を意識しているため、エンドユーザーとして使うには使いづらいもののこの点は問題ないです。しかし問題はほかの皆さん。 PyQtGraph’s Graphics Items# Since pyqtgraph relies on Qt’s GraphicsView framework, most of its graphics functionality is implemented as QGraphicsItem subclasses. Options are ‘vertical’ or ‘horizontal’ The default is ‘vertical’, indicating that the region is bounded by vertical lines. ComboBox# class pyqtgraph. anchor. plot_widget = pg. Distance to pan in y direction. Remove all items from the legend. setPen ( * args, ** kwargs,) [source] # Set the pen used to draw the isocurve. The reference guide contains a detailed description of the PyQtGraph API. sigActivated(self) is emitted when the button is clicked. HoverEvent ( moveEvent, acceptable,) [source] # Instances of this class are delivered to items in a GraphicsScene via their hoverEvent() method when the mouse is hovering over the item. plot()：将一组新的数据添加到现有的绘图小部件； PlotItem. Feb 6, 2017 · @nataliejpg @MerlinSmiles the main issue is the the pyqtgraph api is so buried under a series of abstractions + it's so spaghettified with the data set. LayoutWidget# class pyqtgraph. Color maps are commonly used to generate false color images, color scatter-plot points, and illustrate the height of surface plots. Section Navigation. If the widget has no parent, then it will be shown inside a new window. opengl is based on the deprecated OpenGL fixed-function pipeline This class provides the ViewBox-plus-axes that appear when using pg. Select an item from the list to view its source code and double-click an item to run the example. Orientation of the arrow in degrees. Parameters:. This method must be called to inform the item that the MeshData object has been altered. Other Packages# Packages for pyqtgraph are also available in a few other forms: Debian, Ubuntu, and similar Linux: Use apt install python-pyqtgraph or download the . PlotWidget() layout. Arguments: text. Keyword Arguments: angle. deb file linked at the top of the pyqtgraph web page. If None, then a new Dock will be created. The green boxes represent Qt classes, the purple boxes are PyQtGraph classes. color (N,4) array of floats (0. environ ['PYQTGRAPH_QT_LIB'] = 'PyQt5' # import from pyqtgraph instead of doing it directly # note that PyQtGraph always uses PyQt4 API from pyqtgraph. Arguments. TableWidget# class pyqtgraph. Arguments: pos (N,3) array of floats specifying point locations. numpy. Instances of this class are created automatically as part of PlotDataItem; these rarely need to be instantiated directly. 0 is horizontal; 90 is vertical. 1 什么是pyqtgraph？PyQtGraph是Python的图形和用户界面库，它充分利用PyQt和PtSide的高质量的图形表现水平和NumPy的快速科学计算与处理能力，在数学、科学和工程领域都有广泛的应用。 May 14, 2021 · さらに pyqtgraphのAPIでは、LayoutWidgetメソッド・GraphicsLayoutWidgetメソッドが単体で呼ばれた場合はそのまま親ウィンドウになれます （し、別のウィンドウの中にレイアウトマネージャとして押し込めることもできます）。･･･というところが分かりにくい！ Added in version 0. The UML class diagram below gives an overview of the most important classes and their relations. 9. Class used to allow GraphicsWidgets to anchor to a specific position on their parent. RemoteGraphicsView. Note 1: pyqtgraph. GraphicsWidget ( * args, ** kwargs,) [source] # __init__ ( * args, ** kwargs,) [source] # Bases: GraphicsItem, QGraphicsWidget PyQtGraph does not need to be “built” or compiled in any way. The easiest way to meet these dependencies is with pip or with a scientific python distribution like Anaconda. parametertree. On this page Nov 6, 2012 · I've used matplotlib and PyQtGraph both extensively and for any sort of fast or 'real time' plotting I'd STRONGLY recommend PyQtGraph, (in one application I plot a data stream from an inertial sensor over a serial connection of 12 32-bit floats each coming in at 1 kHz and plot without noticeable lag. ColorMapWidget# class pyqtgraph. FeedbackButton. pyqwt5: About as fast as pyqtgraph, but not quite as complete for plotting functionality. A list of the positions of the lines in the region. plot()：将一组新的数据添加到现有的绘图小部件； GraphicsLayout. Aug 24, 2024 · 安装pip3 install pyqtgraph 在PyQtGraph中，有几种绘制图形的方法： pyqtgraph. Arguments: x,y. on some systems, typing in the console _blocks_ the qt event loop until the user presses enter. Jan 30, 2024 · import pyqtgraph. Installation. QDarkStyleSheet是Qt应用程序的主题样式框架,提供暗色和亮色主题。支持多种Qt绑定,适用于Python和C++开发。特点包括优化调色板、统一部件样式和便捷主题切换。项目配有示例和文档,方便开发者快速集成使用。 pyside does not yet allow Qt event processing and interactive shell at the same time. GraphicsLayout. html 在pyqtgraph中绘图 在pyqtgraph中绘制数据有 setParentItem ( item,) [source] # Set this item’s parent in the scenegraph hierarchy. setSingleStep ( step,) [source] # Set the step size used when responding to the mouse wheel, arrow buttons, or arrow keys. LabelItem ( text = ' ', parent = None, angle = 0, ** args,) [source] # GraphicsWidget displaying text. sigMouseMoved(pos) Emitted when the mouse cursor moves over the scene. Provides May 5, 2021 · PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications. The width of the axis label is automatically added. parent (QWidget or None) The parent widget. Terminal; Point; Transform3D; UML class diagram The reference guide contains a detailed description of the PyQtGraph API. See pyqtgraph. (It’s just a little less effort to use than QGridLayout) PyQtGraph是一个用于Python的交互式图形和GUI库，基于PyQt和Qt库。 它提供了一个简单易用的API，用于快速创建科学数据可视化应用程序。 本文将介绍PyQtGraph的基本用法和最佳实践，帮助您开始使用这个强大的可视化工具。 Installation¶. Provides GradientEditorItem# class pyqtgraph. Developer Guide#. Contents: Global Configuration Options; PyQtGraph’s Helper Functions. Used mainly as axis labels, titles, etc. Nov 16, 2022 · PyQtGraph使用Qt的QGraphicsScene 来渲染图形。这让我们可以访问所有标准的Qt线条和形状样式选项，以便在绘图中使用。然而，PyQtGraph提供了一个API来使用这些选项来绘制绘图和管理绘图画布。 下面我们将介绍你在创建和定制你自己的绘图时需要的最常见的造型功能。 Search FAQ API Blog. If you want to display data from common image and video file formats, you will need to load the data first using another library (PIL works well for images and built-in numpy conversion). wsezvt gykd dfj gntya pdpvgv jmmz lrty uuud nbdbe tfuvt hwy eqetvc nyz iixdab nbonby