Pyqtgraph api setTransform ( tr,) [source] # Set the local transform for this object. This enables construction of custom Parameter classes by name in create(). z must be used to specified to color of the quadrilaterals. Simple Data Display Functions PyQtGraph is a pure-python graphics and GUI library built on PyQt5/PySide2 and numpy. PColorMeshItem ( * args, ** kwargs,) [source] # Bases: GraphicsObject __init__ ( * args, ** kwargs,) [source] # Create a pseudocolor plot with convex polygons. 9. API Reference; Global Configuration Options; Global Configuration Options# PyQtGraph has several global configuration options that allow you to change its default behavior. A value of (0,0) indicates the origin, whereas (1, 1) indicates the upper-right corner, regardless of the ROI’s size. Despite being written entirely in python, the library is very fast due to its heavy PyQtGraph is intended for use in mathematics / scientific / engineering applications. PyQtGraph includes the perceptually uniform color maps provided by the Colorcet project. Handles dict mappings – user selects a text API Reference; PyQtGraph’s Widgets; GraphicsLayoutWidget; GraphicsLayoutWidget# class pyqtgraph. This user guide provides an in-depth description of PyQtGraph features and how they apply to common scientific visualization tasks. pyqtgraph/pyqtgraph’s past year of commit activity Python 4,044 1,117 413 (5 issues need help) 36 Updated Apr 8, 2025 Dash-User-Contributions Public Forked from Kapeli/Dash-User-Contributions 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 Returns:. io. GraphicsView (parent = None, useOpenGL = None, background = 'default',) [source] # Re-implementation of QGraphicsView that removes scrollbars and allows unambiguous control of the viewed coordinate range. PlotWidget 和 GraphicsLayoutWidget. setAxisItems ( axisItems: dict [str, AxisItem] | None = None,) → None [source] # Place axis items and initializes non-existing axis items. Parameter; ParameterTree; Built-in Parameter Types; ParameterItem; Interactive Parameters The official documentation lives at pyqtgraph. registerParameterItemType ( name, API Reference; PyQtGraph’s Widgets; ComboBox; ComboBox# class pyqtgraph. registerParameterType ( name, cls, override = False,) [source] # Register a parameter type in the parametertree system. These are not limits; limits can be set by specifying bounds. Call signature: PColorMeshItem([x, y,] z, **kwargs) x and y can be used to specify the corners of the quadrilaterals. The newly created PlotDataItem. GraphicsScene. 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. API Reference; PyQtGraph’s Widgets; GraphicsView; GraphicsView# class pyqtgraph. BarGraphItem (** opts) [source] # __init__ ( ** opts,) [source] # Valid keyword options are: x, x0, x1, y, y0, y1, width, height, pen, brush. xvals (numpy. It is intended to be a reference for users who are already familiar with the basics of PyQtGraph. API Reference; UML class diagram; UML class diagram# The UML class diagram below gives an overview of the most important classes and their relations. __init__ ( parent = None, ** opts,) [source] # Arrows can be initialized with any keyword arguments accepted by the setStyle() method. Provides guidance on how to contribute to PyQtGraph and factors to be careful of when trying to remain compatible with all the Qt bindings that are supported. If a ColorMap is defined for ColorBarItem, this will be assigned to the ArrowItem# class pyqtgraph. Matplotlib (to my knowledge) does not include many of pyqtgraph’s features such as image interaction, volumetric rendering, parameter trees, flowcharts, etc. It is intended for use in mathematics / scientific / engineering applications. This may also be set via setImageItem(). A list of the positions of the lines in the region. width specifies distance from x0 to x1. pos (length-2 sequence) The position of the handle relative to the shape of the ROI. 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. The reference guide contains a detailed description of the PyQtGraph API. 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 PyQtGraph provides an API for using these options to draw plots and manage the plot canvas. PColorMeshItem. x specifies the x-position of the center of the bar. 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。其主要目标是： 为数据（绘图，视频等）提供快速可交互式图形显示。 提供帮助快速开发应用程序的工具 API Reference; PyQtGraph’s Widgets; TableWidget; TableWidget# class pyqtgraph. pyqtgraph. readthedocs. ImageItem, class:~pyqtgraph. 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. Getting started API Reference¶. axisItems (dict of str and AxisItem or None) – Optional dictionary instructing the PlotItem to use pre-constructed items for its axes. Supported “image items”: class:~pyqtgraph. image (pyqtgraph. orientation. title. Despite being written entirely in python, the library is fast due to its heavy leverage of numpy for number crunching, Qt's GraphicsView framework In this tutorial we've discovered how to draw simple plots with PyQtGraph and customize lines, markers and labels. accept [source] #. Parameters:. GraphicsWidgetAnchor [source] # Class used to allow GraphicsWidgets to anchor to a specific position on their parent. mouseEvents. API Reference; PyQtGraph’s Graphics Items; GraphicsWidgetAnchor; GraphicsWidgetAnchor# class pyqtgraph. Arguments. . ArrowItem ( parent = None, ** opts,) [source] # For displaying scale-invariant arrows. Developer guide. For arrows pointing to a location on a curve, see CurveArrow. Guide to contributing to PyQtGraph. Performance may be improved by disabling the fill. The item will be automatically repositioned if the parent is resized. PyQtGraph 中 绘图控件类 有两种 PlotWidget 和 GraphicsLayoutWidget， 都是 GraphicsView 子类。 GraphicsView 是 Qt 的 QGraphicsView 子类，在其基础上改进了一些功能。. fillHistogram (bool, optional) – By default, the histogram is rendered with a fill. transform – Set the transform of the displayed image. ) The reference guide contains a detailed description of the PyQtGraph API. Arguments: values. Color maps can also be imported from the colorcet library or from matplotlib, if either of these is PyQtGraph is a pure-python graphics and GUI library built on PyQt / PySide and numpy. These widgets can generally be used in any Qt application and provide functionality that is PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in en-gineering and science applications. GraphicsLayoutWidget (parent = None, show = False, size = None, title = None, ** kargs,) [source] # Convenience class consisting of a GraphicsView with a single GraphicsLayout as its central item. parametertree. The width of the axis label is automatically added. ComboBox (parent = None, items = None, default = None,) [source] # Extends QComboBox to add extra functionality. 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 Added in version 0. Image handling in pyqtgraph is much more complete (again, no ROI widgets in qwt). pyqwt5: About as fast as pyqtgraph, but not quite as complete for plotting functionality. ndarray) – 1D array of values corresponding to the first axis in a 3D image. This option overrides pos and scale. To the reference guide. Parameters: image (ImageItem or list of ImageItem) – Assigns one or more image items to this ColorBarItem. 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 PColorMeshItem# class pyqtgraph. 6k次，点赞10次，收藏13次。本文介绍了PyQtGraph，一个基于PyQt和NumPy的开源数据可视化库，重点讲述了其快速绘图、实时数据可视化、交互功能以及安装和实例应用。 易于使用：PyQtGraph 具有简单、直观的 API 接口，易于上手和使用。 PyQtGraph is a pure-python graphics and GUI library built on PyQt5/PySide2 and numpy. Below, we'll explore the most common styling features that you'll need to create and customize your own plots with 一、介绍 1. MouseDragEvent# class pyqtgraph. This has two important consequences: 1) virtually anything you want to draw can be easily accomplished using the functionality provided Assigns an item or list of items to be represented and controlled. pos – Change the position of the displayed image. These can be accessed using the setConfigOptions() and getConfigOption() functions: Option. Type. Transform3D) – Tranformation from the local coordinate system to the parent’s. PlotWidget 只 API# class pyqtgraph. Parameter# pyqtgraph. TableWidget (* args, ** kwds,) [source] # Extends QTableWidget with some useful functions for automatic data handling and copy / export context menu. The title to display for this item. PlotDataItem. The green boxes represent Qt classes, the purple boxes are PyQtGraph classes. For a complete overview of PyQtGraph methods and capabilities see the PyQtGraph Documentation & PyQtGraph provides several QWidget subclasses which are useful for building user interfaces. Can automatically format and display a variety of data types (see setData() for more information. Return type:. 文章浏览阅读1. Also automatically creates a GraphicsScene and a central User Guide#. For video, this array should contain the time of each frame. PyQtGraph# A pure-python graphics and GUI library built on PyQt / PySide and numpy for use in mathematics / scientific / engineering applications. setVisible API Reference; PyQtGraph’s Graphics Items; PyQtGraph’s Graphics Items# Since pyqtgraph relies on Qt’s GraphicsView framework, most of its graphics functionality is implemented as QGraphicsItem subclasses. setLogMode ( axis, logMode,) [source] # Informs ViewBox that log mode is active for the specified axis, so that the view range cen be restricted 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’s parameter tree system works similarly to the model-view architecture used by some components of Qt: For more information, see the ‘parametertree’ example included with pyqtgraph and the API reference: ParameterTree API Reference. This is used, for example, to anchor a LegendItem to setWidth ( w: int | None = None,) [source] # Set the width of this axis reserved for ticks and tick labels. showLabel Arguments: item. examples to launch the examples application. An item should call this method if it can handle the . Simple HTML allowed. The easiest way to learn PyQtGraph is to browse through the examples; run python -m pyqtgraph. Contents: Global Configuration Options; PyQtGraph’s Helper Functions. ImageItem ( image: ndarray | None = None, ** kargs,) [source] # Graphics object used to display image data. mnmogq wrnb shdqt bmps nutfyzhq thhup jfpkl drcdj jwdbt dooxn cxddq funmoo sessqt iraedqri bcly