Pyqtgraph legend addLegend. import pyqtgraph as pg from pyqtgraph. The legend appears in the top left by default. py)を修正することで背景色の変更自体は可能とのことです。 Feb 10, 2024 · 在 PyQtGraph 中，要使用 `addItem()` 方法将图形项添加到图例中，可以按照以下方式操作： ```python legend. pyqtgraph的addlegend用法-pyqtgraph的addlegend用法在pyqtgraph中，我们可以使用`addLegend()`方wenku. setMouseEnabled(x=False, y=False) # Disable mouse panning & zooming widget. GraphicsWindow(title="Simulation") p = win. offset: Specifies the offset position relative to the legend’s parent. Its primary goals are to provide fast, interactive graphics for displaying data (plots, video, etc. PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications. offset. This is how I am plotting. I could not find any example of the same. resize() will resize the surrounding box, but not all the legend items. arange(1, 10, 0. I don't know how to create the legend, to me it can even be a 'static' image only show color and value. Oct 6, 2024 · 1. opts['offset']. Sep 24, 2020 · PyQtGraph includes an extensive set of examples which can be accessed by the import pyqtgraph. ~~ You should not have been able to change the background color etc. The way to do it would be to use a GraphicsLayout, have the plots, and x-axis axis items be in one column, and have the y-axis axisitem's be in another column. To somehow take care for that, I added a try except block: try: legend. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Since the user can also drag the legend to a Mar 16, 2019 · pyqtgraph：为散点图添加图例项 - 我正在使用pyqtgraph，我想在散点图的图例中添加一个项目。 我已经调整了示例代码来演示： # -*- coding: utf-8 -*- 你的浏览器禁用了JavaScript, 请开启后刷新浏览器获得更好的体验! Oct 7, 2019 · I am trying to add legend in PyQtGraph plot but I am unable to add the color to it. plot()：将一组新的数据添加到现有的绘图小部件； PlotItem. Jul 7, 2019 · 使用 pyQt5，我使用 self. run() Argument : It takes no argument. pos() instead of legend. PlotWidget() # 设置图例横向排列 pw. But the legend is not deleted, and with each update, a Feb 18, 2022 · PyQtGraph: legend does not work. 6 and having trouble with the following code. 4. mkPen>` is allowed. Parameters: offset (tuple of int, int) – The distance to offset the LegendItem, defaults to (30, 30). 3. 9k次，点赞5次，收藏9次。最近给一个Keithley源表写了个测试界面程序，在做数据交互时用到了pyqtgraph，中间碰到了一些坑，包括实时动态显示，图坐标轴设置，字体设置等，感觉pyqtgraph有些地方还待完善，在此分享给大家，碰到的同志可以少走点弯路。 May 7, 2021 · Short description When I export an scene or a plot item from the API or from the context menu to the PNG file, the font of the legend is not as set and shown on the screen. Apr 12, 2024 · I want to add labels to points in a scatter plot. plot() win. Feb 6, 2017 · I want to add a legend to a plot by doing something similar to the example below from qcodes. py). Internally, pyqtgraph uses the same system but also allows many shorthand methods of specifying the same style options. If you would like to move it, you can drag and drop the legend elsewhere. com为图表添加一个图例。图例可以显示与图表中绘制的每个图形对象相关的标签，并将它们与相应的绘图项关联起来。以下是使用`addLegend()`方 [pyqtgraph] Legend text size Walter 2016-01-21 21:51:23 UTC. addLegend <pyqtgraph. Can I change the font size without having to resort to manually creating the legend and adding individual legend items? Resulting image is May 24, 2023 · pg. We would like to show you a description here but the site won’t allow us. All I need now is to add a legend or gradient item, which would represent the correspondence between the color and values I have on the faces. Create or get the plotting data i. plot() # Disable interactivity widget. addColorBar(img, colorMap='viridis')`` is a convenient method to assign and show a color map. Each time they plot new data, the legend May 22, 2013 · 我正在使用pyqtgraph，我想在散点图的图例中添加一项。我已经修改了示例代码来演示：# -*- coding: utf-8 -*-"""Demonstrates basic use of LegendItem"""import initExample ## Add path to library (just for examples; you do not need this)import p Jan 15, 2022 · In this article we will see how we can set symbols of line in line graph of the PyQtGraph module. examples module. When I place a PyQtGraph PlotWidget with ROIs inside a QGraphicsProxyWidget, the ROIs don't respond to some of the mouse interactions. setConfigOption('background', '#f0f0f0') 更改了背景颜色，但是，这不适用于图例项。 We would like to show you a description here but the site won’t allow us. If the x coordinates of the points are (0. setColumnCount(self. pyqtgraph with Qt Designer: how to add PlotItems to GraphicsLayoutWidget. My idea is to create a couple of methods that should display additional information in the legend, like maximum or minimum values of plotted data. Specifies the fixed size (width, height) of the legend. Creating a plot window 3. pw. The issue can be reproduced using the following code. setWindo def addColorBar (self, image, ** kwargs): """ Add a ColorBarItem and set to the provided image. Note, that this relies on the internal structure of the LegendItem class and might not work with later versions. 1k次，点赞6次，收藏26次。默认情况下，图例(legend)在与图表相同的视图内绘制图例。在某些情况下，用户可能希望将图例绘制到其他位置。为此，可以将图例从图表中分离出来（这意味着图表不会绘制图例或尝试更改其布局）。 Jul 1, 2022 · Extend your PySide6 GUIs with dynamic plotting using PyQtGraph. Return : It returns None Below is the implementation Qt relies on its QColor, QPen and QBrush classes for specifying line and fill styles for all of its drawing. Qt import QtGui # 创建一个QtGui应用程序 Any single argument accepted by :func:`mkPen <pyqtgraph. Two lines are created on the live chart and a legend is added. pyqtgraph import QtPlot vw = QtPlot(windowTitle='My Plot') # vw stands for viewing window # a is some analysis object that contains my dat Nov 5, 2018 · pyqtgraph -- line chart 예제 2 개발환경 : --> 이 경우 legend 에서 마크와 text 가 붙어서 안좋음. I tried a lot to find how to change the color property of legend, but all in vain. May 22, 2013 · This question does not show any research effort; it is unclear or not useful Feb 6, 2024 · Then I need to create a color map to give a legend to the user. PlotWidget可以通过设置参数legendOrientation来控制图例横向排列： ```python import pyqtgraph as pg # 创建一个PlotWidget对象 pw = pg. I wrote a new class inheriting the LegendItem class and overriding two functions. ) The legend is added, all the plots work, but the legend font size needs adjustment. Jul 12, 2017 · pyqtgraph automatically adds an item to the legend if it is created with the "name" parameter. e. At the next update, the lines on the chart are deleted using self. Nov 7, 2022 · 这是PyQtGraph例子中的一个常见惯例，以保持整洁并减少输入。如果你愿意，你可以导入并使用它作为import pyqtgraph 。 自定义的PyQtGraph小组件显示假数据。 PyQtGraph的默认绘图风格是非常赤裸裸的--黑色背景加上一条细的（几乎看不到的）白线。 May 5, 2021 · PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications. In some cases the user may want to draw the legend to somewhere else. hideButtons() # Disable corner auto-scale button widget. addLegend(orientation='horizontal') ``` pg. mkBrush>` is allowed. setScale, but will only allow fixed ratio scaling. pyqtgraph plotwidget multiple Y axis plots in wrong area. legend, 2) Part 6 Displaying the legend. Perhaps this is helpful. Can I change the font size without having to resort to manually creating the legend and adding individual legend items? Feb 19, 2023 · 目录一、效果展示二、资料参考三、实例详解四、自定义案例 一、效果展示 开门见山，上效果： 窗口共有三个部分 图2为所有数据画出的折线图 图1为图2的蓝色矩形区域处的放大显示 右上角的图例可以根据鼠标在图1中的移动，实时显示鼠标所在x轴处的折线y值 二、资料参考 pyqtgraph的examples的 Dec 26, 2024 · Expected behavior. 11. com class LegendItem (GraphicsWidgetAnchor, GraphicsWidget): """ Displays a legend used for describing the contents of a plot. Mar 20, 2016 · The legend is added, all the plots work, but the legend font size needs adjustment. LegendItems are most commonly created by calling :meth:`PlotItem. Jun 5, 2020 · 在实时图表上创建了两条线，并添加了图例。在下一次更新时，使用self. Pyqtgraph multiple Apr 13, 2023 · it is possible to put the legend of a pyqtgraph in front of the grid in order to don't see the grid in the legend? May 22, 2013 · PyQtGraph: legend does not work. 384) and the y coordinates are (1. addItem(item, name) ``` 其中，`item` 是要添加到图例中的图形项对象，`name` 是图例中显示的标签名称。 Apr 7, 2014 · Hi, Is it possible to have a LegendItem on the side (for example to the right of the plot), instead of inside the plot? Sometimes it covers up some spots on the plot and it can be moved by user, but I would prefer if it could be just drawn outside of the plot altogether Jun 27, 2017 · I would like a TextItem that maintains a constant position on the graph while scaling the y-axis, essentially the same functionality as legend only as a TextItem where I can change the text as need Legend Example¶ This example shows how to detach the legend from the chart and how to attach it back. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. How to add value from multiple radio buttons into lcd pyqt? 2. I'm having difficulty assigning the anchor to the labels. Syntax : examples. addItem). 10 with Py3. In order to do this we use run method with the pyqtgraph. But having to get correct offset value every time I build a window and resize it would be painful. clear（）删除图表上的折线。但是图例不会被删除，并且每次更新都会添加一个新的图例实例，其中有很多实例，并且计划更新的FPS会迅速下降。 Nov 25, 2014 · I have managed to plot and color it using pg. run() legend still show that line's data, you need call removeItem() to totally remove line data – shijq73. I can't find any tutorial or example using line plot, only with ImageView or scatterPlot, for the line color I manage with a RGB tuple list with color scale. PlotItem. Displays a legend used for describing the contents of a plot. Nov 23, 2020 · 安装pip3 install pyqtgraph 在PyQtGraph中，有几种绘制图形的方法： pyqtgraph. Jul 27, 2021 · EDIT: It seems that calling legend. ad Oct 7, 2015 · 我正在使用pyqtgraph，我想在InfiniteLines的图例中添加一项。我已经修改了示例代码来演示：# -*- coding: utf-8 -*-"""Demonstrates basic use of LegendItem"""import initExample ## Add path to library Specifies the fixed size (width, height) of the legend. ) and second is to provide tools to aid in rapid application development (for example, property Dec 19, 2016 · 1. xbqz rjdmu wqwcr arrbsnq woieh jwjmvpv falthgj tljlr pfupymad izmj bcdeb bwaxp fvvc yxoy aqvk
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