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updata pyqtgraph 滚动区实例 和更新README文件
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‎PyQtGraph/Data/graphAnalysis.py

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# -*- coding: utf-8 -*-
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# Form implementation generated from reading ui file 'graphAnalysis.ui'
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#
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# Created by: PyQt5 UI code generator 5.11.3
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#
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# WARNING! All changes made in this file will be lost!
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from PyQt5 import QtCore, QtGui, QtWidgets
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class graph_Form(object):
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def setupUi(self, Form):
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Form.setObjectName("Form")
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Form.resize(1024, 768)
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self.gridLayout_3 = QtWidgets.QGridLayout(Form)
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self.gridLayout_3.setContentsMargins(20, 20, 20, 20)
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self.gridLayout_3.setSpacing(20)
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self.gridLayout_3.setObjectName("gridLayout_3")
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self.pushButton_7 = QtWidgets.QPushButton(Form)
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self.pushButton_7.setMinimumSize(QtCore.QSize(0, 80))
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font = QtGui.QFont()
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font.setPointSize(15)
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self.pushButton_7.setFont(font)
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self.pushButton_7.setObjectName("pushButton_7")
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self.gridLayout_3.addWidget(self.pushButton_7, 2, 2, 1, 2)
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self.label = QtWidgets.QLabel(Form)
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font = QtGui.QFont()
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font.setPointSize(15)
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self.label.setFont(font)
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self.label.setAlignment(QtCore.Qt.AlignCenter)
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self.label.setObjectName("label")
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self.gridLayout_3.addWidget(self.label, 0, 0, 1, 4)
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self.tabWidget = QtWidgets.QTabWidget(Form)
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self.tabWidget.setObjectName("tabWidget")
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self.tab = QtWidgets.QWidget()
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self.tab.setObjectName("tab")
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self.tabWidget.addTab(self.tab, "")
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self.tab_2 = QtWidgets.QWidget()
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self.tab_2.setObjectName("tab_2")
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self.tabWidget.addTab(self.tab_2, "")
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self.gridLayout_3.addWidget(self.tabWidget, 1, 1, 1, 4)
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self.retranslateUi(Form)
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QtCore.QMetaObject.connectSlotsByName(Form)
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def retranslateUi(self, Form):
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_translate = QtCore.QCoreApplication.translate
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Form.setWindowTitle(_translate("Form", "Form"))
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self.pushButton_7.setText(_translate("Form", "分析"))
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self.label.setText(_translate("Form", "图形分析"))
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self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), _translate("Form", "折线图"))
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self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), _translate("Form", "Tab 2"))
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‎PyQtGraph/Data/graphAnalysis.ui

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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>Form</class>
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<widget class="QWidget" name="Form">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>1024</width>
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<height>768</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>Form</string>
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</property>
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<layout class="QGridLayout" name="gridLayout_3">
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<property name="leftMargin">
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<number>20</number>
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</property>
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<property name="topMargin">
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<number>20</number>
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</property>
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<property name="rightMargin">
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<number>20</number>
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</property>
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<property name="bottomMargin">
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<number>20</number>
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</property>
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<property name="spacing">
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<number>20</number>
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</property>
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<item row="2" column="2" colspan="2">
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<widget class="QPushButton" name="pushButton_7">
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<property name="minimumSize">
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<size>
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<width>0</width>
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<height>80</height>
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</size>
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</property>
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<property name="font">
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<font>
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<pointsize>15</pointsize>
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</font>
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</property>
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<property name="text">
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<string>分析</string>
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</property>
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</widget>
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</item>
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<item row="0" column="0" colspan="4">
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<widget class="QLabel" name="label">
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<property name="font">
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<font>
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<pointsize>15</pointsize>
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</font>
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</property>
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<property name="text">
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<string>图形分析</string>
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</property>
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<property name="alignment">
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<set>Qt::AlignCenter</set>
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</property>
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</widget>
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</item>
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<item row="1" column="1" colspan="4">
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<widget class="QTabWidget" name="tabWidget">
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<widget class="QWidget" name="tab">
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<attribute name="title">
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<string>折线图</string>
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</attribute>
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</widget>
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<widget class="QWidget" name="tab_2">
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<attribute name="title">
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<string>Tab 2</string>
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</attribute>
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</widget>
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</widget>
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</item>
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</layout>
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</widget>
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<resources/>
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<connections/>
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</ui>

‎PyQtGraph/README.md

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![mouseFlow](ScreenShot/function.gif)
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## 2、不用修改源码，重加载，解决右键保存图片异常；解决自定义坐标轴密集显示；禁止鼠标事件；
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[加载 tools.py](tools.py)
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## 3、不用修改源码，重加载，解决右键保存图片异常；解决自定义坐标轴密集显示；禁止鼠标事件；
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[加载 tools.py](tools.py)
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## 4、QScrollArea添加和修改大小例子；
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[运行 testGraphAnalysis.py](testGraphAnalysis.py)
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![testGraphAnalysis](ScreenShot/GraphAnalysis.gif)

‎PyQtGraph/ScreenShot/GraphAnalysis.gif

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‎PyQtGraph/testGraphAnalysis.py

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#!/usr/bin/env python
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# encoding: utf-8
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'''
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Created on 2019年8月17日
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@author: weike32
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@site: https://pyqt5.com ,https://github.com/weike32
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@email: [email protected]
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@file: CopyContent
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@description:
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'''
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import sys
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from PyQt5.QtCore import Qt
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from PyQt5.QtWidgets import QDialog, QApplication, QWidget
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from qtpy import QtWidgets
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import pyqtgraph as pg
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from PyQtGraph.Data.graphAnalysis import graph_Form
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class CustomViewBox(pg.ViewBox):
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def __init__(self, *args, **kwds):
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pg.ViewBox.__init__(self, *args, **kwds)
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self.RectMode = 3
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self.setMouseMode(self.RectMode)
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def mouseClickEvent(self, ev):
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if ev.button() == pg.QtCore.Qt.RightButton:
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self.autoRange()
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def mouseDragEvent(self, ev):
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pg.ViewBox.mouseDragEvent(self, ev)
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def wheelEvent(self,ev,axis=None):
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ev.ignore()
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class graphAnalysis(QDialog,graph_Form):
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def __init__(self):
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super(graphAnalysis, self).__init__()
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self.setupUi(self)
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self.pushButton_7.clicked.connect(self.test)
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self.tabWidget.clear()
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def handleChanged(self,item,column):
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count = item.childCount()
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if item.checkState(column) == Qt.Checked:
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for index in range(count):
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item.child(index).setCheckState(0,Qt.Checked)
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if item.checkState(column) == Qt.Unchecked:
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for index in range(count):
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item.child(index).setCheckState(0,Qt.Unchecked)
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def test(self):
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tab1 = QtWidgets.QWidget()
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scrollArea = QtWidgets.QScrollArea(tab1)
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scrollArea.setMinimumSize(650,550)
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scrollArea.setWidgetResizable(True)
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labelsContainer = QWidget()
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labelsContainer.setMinimumSize(0,3000+200)
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scrollArea.setWidget(labelsContainer)
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layout = QtWidgets.QVBoxLayout(labelsContainer)
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time = ['2019-04-20 08:09:00', '2019-04-20 08:09:00', '2019-04-20 08:09:00', '2019-04-20 08:09:00']
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value = [1.2, 2, 1, 4]
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xdict = dict(enumerate(time))
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ticks = [list(zip(range(4), tuple(time)))]
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for i in range(11):
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vb1 = CustomViewBox()
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plt1 = pg.PlotWidget(title="Basic array plotting%s"%i, viewBox=vb1)
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plt1.resize(500, 500)
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plt1.setBackground(background=None)
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plt1.plot(list(xdict.keys()), value)
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plt1.getPlotItem().getAxis("bottom").setTicks(ticks)
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temp1 = QtWidgets.QWidget()
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temp1.setMinimumSize(600, 300)
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temp1.setMaximumSize(600, 300)
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layout2 = QtWidgets.QVBoxLayout(temp1)
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layout2.addWidget(plt1)
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layout.addWidget(temp1)
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spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
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layout.addItem(spacerItem)
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# print(layout.count())
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self.tabWidget.addTab(tab1, '12')
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for i in range(self.tabWidget.count()):
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self.tabWidget.widget(i)
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if __name__ =="__main__":
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app = QApplication(sys.argv)
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w = graphAnalysis()
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w.show()
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sys.exit(app.exec_())

‎README.md

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@@ -158,6 +158,7 @@ https://pyqt5.com 社区是专门针对PyQt5学习和提升开设的博客网站
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- [鼠标获取X轴坐标](PyQtGraph/mouseFlow.py)
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- [禁止右键点击功能、鼠标滚轮，添加滚动条等功能](PyQtGraph/graph1.py)
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- [工具类](PyQtGraph/tools.py)
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- [滚动区相关](PyQtGraph/testGraphAnalysis.py)
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- [Animation](QPropertyAnimation)
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- [窗口淡入淡出](QPropertyAnimation/FadeInOut.py)

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