【pyQt5】Python在PyQt5中使用ECharts绘制图表

Echarts官网下载Html示例

Echarts官网：https://echarts.apache.org/zh/index.html
以折线图为例：

 <!DOCTYPE html>
<html lang="zh-CN",style="height:100%">
<head>
    <meta charset="utf-8">
</head>
<body>
    <div id="container" style="height:100%"></div>
 
    <script type="text/javascript" src="./echarts.min.js"></script>
    <script>
        var dom=document.getElementById('container');
        var myChart=echarts.init(dom,null,{
          renderer:'canvas',
          useDirtyRect:false
        });
        var app={};
        var option;
 
        option={
          title:{
            text:'gamma'
          },
          tooltip:{
            trigger:'axis
          },
          legend:{
            data:['1.9','2.5','测试值']
          },
          grid:{
            left:'3%',
            right:'4%',
            bottom:'3%',
            containLabel:true,
          },
          toolbox:{
            feature:{
              saveAsImage:{}
            }
          },
          xAxis:{
            type:'category',
            boundaryGap:false,
            data:[0,15,31,47,63]
          },
          yAxis: [{
            type:'value',
            min:function(value){
              return value.min;
            },
            max:function(value){
              return value.max;
            },
          }],
          series:[
          {
              name:'1.9',
              type:'line',
              data:[1,2,3,4,5,6,7,8]
          },
          {
              name:'2.2',
              type:'line',
              data:[2,3,4,5,6,7,8,9]
          },
          {
              name:'测试值',
              type:'line',
              data:[3,4,5,6,7,8,9,10]
          }
          ],
        };
        if (option && typeof option === 'object'){
          myChart.setOption(option);
        }
    </script>
</body>
</html>
复制

QtDesigner绘制界面

htmlTest.py

 from PyQt5 import QtCore, QtWidgets
from PyQt5.QtCore import QUrl
from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEngineSettings
 
 
class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName('Dialog')
        Dialog.resize(991, 650)
 
        self.horizontalLayout = QtWidgets.QHBoxLayout(Dialog)
        self.horizontalLayout.setObjectName("horizontalLayout")
 
        # 设置全局变量
        web_settings = QWebEngineSettings.globalSettings()
        web_settings.setAttribute(QWebEngineSettings.JavascriptEnabled, True)
        web_settings.setAttribute(QWebEngineSettings.PluginsEnabled, True)
        web_settings.setAttribute(QWebEngineSettings.JavascriptCanOpenWindows, True)
 
        self.web_view = QWebEngineView()
        self.web_view.load(QUrl("file:///绝对路径")) #注意file后面是///
 
        self.horizontalLayout.addWidget(self.web_view)
        self.retranslateUi(Dialog)
        QtCore.QMetaObject.connectSlotsByName(Dialog)
 
    def retranslateUi(self, Dialog):
        _translate = QtCore.QCoreApplication.translate
        Dialog.setWindowTitle(_translate('Dialog', 'Dialog'))
 复制

展示图表

main.py

 import sys
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QDialog
from htmlTest import Ui_Dialog
 
 
class WebEngineWin(QDialog, Ui_Dialog):
 
    def __init__(self):
        super().__init__()
        self.setupUi(self)
 
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    win = WebEngineWin()
    win.show()
    sys.exit(app.exec_())复制

动态修改图表数据

html添加方法

 function setValue(val1,val2) {
    option.series[0].data = val1
    option.series[1].data = val2
    myChart.setOption(option)
}复制

完整html代码

 <!DOCTYPE html>
<html lang="zh-CN",style="height:100%">
<head>
    <meta charset="utf-8">
</head>
<body>
    <div id="container" style="height:100%"></div>
 
    <script type="text/javascript" src="./echarts.min.js"></script>
    <script>
        var dom=document.getElementById('container');
        var myChart=echarts.init(dom,null,{
          renderer:'canvas',
          useDirtyRect:false
        });
        var app={};
        var option;
 
        option={
          title:{
            text:'gamma'
          },
          tooltip:{
            trigger:'axis
          },
          legend:{
            data:['1.9','2.5','测试值']
          },
          grid:{
            left:'3%',
            right:'4%',
            bottom:'3%',
            containLabel:true,
          },
          toolbox:{
            feature:{
              saveAsImage:{}
            }
          },
          xAxis:{
            type:'category',
            boundaryGap:false,
            data:[0,15,31,47,63]
          },
          yAxis: [{
            type:'value',
            min:function(value){
              return value.min;
            },
            max:function(value){
              return value.max;
            },
          }],
          series:[
          {
              name:'1.9',
              type:'line',
              data:[1,2,3,4,5,6,7,8]
          },
          {
              name:'2.2',
              type:'line',
              data:[2,3,4,5,6,7,8,9]
          },
          {
              name:'测试值',
              type:'line',
              data:[3,4,5,6,7,8,9,10]
          }
          ],
        };
        if (option && typeof option === 'object'){
          myChart.setOption(option);
        }
        function setValue(val1,val2) {
		  option.series[0].data = val1
		  option.series[1].data = val2
		  myChart.setOption(option)
		}
    </script>
</body>
</html>
复制

修改main.py

 import sys
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QDialog
from htmlTest import Ui_Dialog
 
 
class WebEngineWin(QDialog, Ui_Dialog):
 
    def __init__(self):
        super().__init__()
        self.setupUi(self)
        self.listener()
 
    def listener(self):
        self.web_view.loadFinished.connect(self.set_table_data)
 
    def set_table_data(self):
        js = "setValue({},{})".format([], [])
        self.web_view.page().runJavaScript(js)
 
 
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    win = WebEngineWin()
    win.show()
    sys.exit(app.exec_())复制

【pyQt5】Python在PyQt5中使用ECharts绘制图表

目录

Echarts官网下载Html示例

QtDesigner绘制界面

展示图表

动态修改图表数据

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npm ERR! code CERT_HAS_EXPIRED npm ERR! errno CERT_HAS_EXPIRED npm ERR! request to https://registry.

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	<!DOCTYPE html>
	<html lang="zh-CN",style="height:100%">
	<head>
	<meta charset="utf-8">
	</head>
	<body>
	<div id="container" style="height:100%"></div>

	<script type="text/javascript" src="./echarts.min.js"></script>
	<script>
	var dom=document.getElementById('container');
	var myChart=echarts.init(dom,null,{
	renderer:'canvas',
	useDirtyRect:false
	});
	var app={};
	var option;

	option={
	title:{
	text:'gamma'
	},
	tooltip:{
	trigger:'axis
	},
	legend:{
	data:['1.9','2.5','测试值']
	},
	grid:{
	left:'3%',
	right:'4%',
	bottom:'3%',
	containLabel:true,
	},
	toolbox:{
	feature:{
	saveAsImage:{}
	}
	},
	xAxis:{
	type:'category',
	boundaryGap:false,
	data:[0,15,31,47,63]
	},
	yAxis: [{
	type:'value',
	min:function(value){
	return value.min;
	},
	max:function(value){
	return value.max;
	},
	}],
	series:[
	{
	name:'1.9',
	type:'line',
	data:[1,2,3,4,5,6,7,8]
	},
	{
	name:'2.2',
	type:'line',
	data:[2,3,4,5,6,7,8,9]
	},
	{
	name:'测试值',
	type:'line',
	data:[3,4,5,6,7,8,9,10]
	}
	],
	};
	if (option && typeof option === 'object'){
	myChart.setOption(option);
	}
	</script>
	</body>
	</html>

	from PyQt5 import QtCore, QtWidgets
	from PyQt5.QtCore import QUrl
	from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEngineSettings


	class Ui_Dialog(object):
	def setupUi(self, Dialog):
	Dialog.setObjectName('Dialog')
	Dialog.resize(991, 650)

	self.horizontalLayout = QtWidgets.QHBoxLayout(Dialog)
	self.horizontalLayout.setObjectName("horizontalLayout")

	# 设置全局变量
	web_settings = QWebEngineSettings.globalSettings()
	web_settings.setAttribute(QWebEngineSettings.JavascriptEnabled, True)
	web_settings.setAttribute(QWebEngineSettings.PluginsEnabled, True)
	web_settings.setAttribute(QWebEngineSettings.JavascriptCanOpenWindows, True)

	self.web_view = QWebEngineView()
	self.web_view.load(QUrl("file:///绝对路径")) #注意file后面是///

	self.horizontalLayout.addWidget(self.web_view)
	self.retranslateUi(Dialog)
	QtCore.QMetaObject.connectSlotsByName(Dialog)

	def retranslateUi(self, Dialog):
	_translate = QtCore.QCoreApplication.translate
	Dialog.setWindowTitle(_translate('Dialog', 'Dialog'))

	import sys
	from PyQt5 import QtWidgets
	from PyQt5.QtWidgets import QDialog
	from htmlTest import Ui_Dialog


	class WebEngineWin(QDialog, Ui_Dialog):

	def __init__(self):
	super().__init__()
	self.setupUi(self)

	if __name__ == '__main__':
	app = QtWidgets.QApplication(sys.argv)
	win = WebEngineWin()
	win.show()
	sys.exit(app.exec_())

	function setValue(val1,val2) {
	option.series[0].data = val1
	option.series[1].data = val2
	myChart.setOption(option)
	}

【pyQt5】Python在PyQt5中使用ECharts绘制图表

目录

Echarts官网下载Html示例

QtDesigner绘制界面

展示图表

动态修改图表数据

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