PyQt5数据图表生成
Python 集中营 人气:0我的需求：手动配置X轴、Y轴、图表标题等参数自动通过Pyecharts模块生成可视化的html数据图表，并将浏览器图表展示到UI界面上。
制作出图表后的效果展示如下：
另外，生成后的图表结果会使用 html 的形式保存下来。
导入 UI 界面相关的 PyQt5 第三方模块库。
from PyQt5.QtCore import * from PyQt5.QtWidgets import * from PyQt5.QtGui import *
若是使用PyQt5的版本是5.10.1以上，则需要单独安装一下PyQtWebEngine，说是QtWebEngineWidgets模块被新版本移除了。执行一下下面安装单独安装一下PyQtWebEngine就OK了。
pip install PyQtWebEngine
导入 Web 浏览器引擎的支持。
from PyQt5.QtWebEngineWidgets import QWebEngineView
应用其他的相关模块导入。
import sys # 应用操作库 import os from datetime import datetime from pyecharts.charts import * # 图表设置展示库 from pyecharts import options # 图标参数配置库
主要的代码块实现过程如下：
class DataVisual(QWidget):
def __init__(self):
super(DataVisual, self).__init__()
self.cwd = os.getcwd() # 获取当前路径
self.init_ui()
def init_ui(self):
self.setWindowTitle('数据图表生成器')
self.setWindowIcon(QIcon('数据.ico'))
self.brower = QWebEngineView()
self.brower.setMinimumWidth(800)
self.brower.setMaximumWidth(1400)
self.brower.setUrl(QUrl(''))
form = QFormLayout()
'''折线图/柱状图控件开始'''
self.selected_label = QLabel()
self.selected_label.setText('设置图表类型：')
self.selected_cobox = QComboBox()
self.selected_cobox.addItems(['Bar（柱状图/条形图）', 'Line（折线/面积图）', 'Pie（饼图）'])
self.selected_cobox.currentIndexChanged.connect(self.selected_cobox_change)
self.title_label = QLabel()
self.title_label.setText('设置标题：')
self.title_text = QLineEdit()
self.title_text.setPlaceholderText('请输入图表标题（最大长度10）')
self.title_text.setMaxLength(10)
self.subtitle_label = QLabel()
self.subtitle_label.setText('设置副标题：')
self.subtitle_text = QLineEdit()
self.subtitle_text.setPlaceholderText('请输入图表副标题（最大长度20）')
self.title_text.setMaxLength(20)
self.data_label_x = QLabel()
self.data_label_x.setText('设置X轴数据：')
self.data_text_x = QLineEdit()
self.data_text_x.setPlaceholderText("湖北, 四川, 重庆, 河北, 云南")
self.data_text_x.setMaxLength(1000)
self.data_label_y1_name = QLabel()
self.data_label_y1_name.setText('设置Y1轴标签：')
self.data_text_y1_name = QLineEdit()
self.data_text_y1_name.setPlaceholderText("请输入Y1轴标签")
self.data_label_y1 = QLabel()
self.data_label_y1.setText('设置Y1轴数据：')
self.data_text_y1 = QLineEdit()
self.data_text_y1.setPlaceholderText("34500, 3000, 3218, 2890, 50023")
self.data_text_y1.setMaxLength(1000)
self.data_label_y2_name = QLabel()
self.data_label_y2_name.setText('设置Y2轴标签：')
self.data_text_y2_name = QLineEdit()
self.data_text_y2_name.setPlaceholderText("请输入Y2轴标签")
self.data_label_y2 = QLabel()
self.data_label_y2.setText('设置Y2轴数据：')
self.data_text_y2 = QLineEdit()
self.data_text_y2.setPlaceholderText("1200, 100, 300, 130, 1004")
self.data_text_y2.setMaxLength(1000)
'''折线图/柱状图控件结束'''
'''饼图控件开始'''
self.pie_table_label = QLabel()
self.pie_table_label.setText('设置标题：')
self.pie_table_label.setVisible(False)
self.pie_table_text = QLineEdit()
self.pie_table_text.setPlaceholderText('请输入标题')
self.pie_table_text.setVisible(False)
self.pie_data_label = QLabel()
self.pie_data_label.setText('设置饼图数据：')
self.pie_data_label.setVisible(False)
self.pie_data_text = QLineEdit()
self.pie_data_text.setPlaceholderText("华为:35,三星:59")
self.pie_data_text.setVisible(False)
self.pie_radius = QLabel()
self.pie_radius.setText('设置数据显示比例：')
self.pie_radius.setVisible(False)
self.pie_radius_text = QLineEdit()
self.pie_radius_text.setPlaceholderText('65%')
self.pie_radius_text.setVisible(False)
self.pie_radius_cle = QLabel()
self.pie_radius_cle.setText('设置圆环空心比例：')
self.pie_radius_cle.setVisible(False)
self.pie_radius_text_cle = QLineEdit()
self.pie_radius_text_cle.setPlaceholderText('60%')
self.pie_radius_text_cle.setVisible(False)
'''饼图控件结束'''
'''公共控件开始'''
self.save_dir_text = QLineEdit()
self.save_dir_text.setPlaceholderText('请选择图表保存地址')
self.save_dir_text.setReadOnly(True)
self.save_dir_btn = QPushButton()
self.save_dir_btn.setText('存储路径')
self.save_dir_btn.clicked.connect(self.save_dir_btn_click)
self.version = QLabel()
self.version.setText('<font color="green">公众号：[Python 集中营]</font>')
self.generate_btn = QPushButton()
self.generate_btn.setText('生成图表')
self.generate_btn.clicked.connect(self.generate_btn_click)
'''公共控件结束'''
'''折线图/柱状图布局开始'''
form.addRow(self.selected_label, self.selected_cobox)
form.addRow(self.title_label, self.title_text)
form.addRow(self.subtitle_label, self.subtitle_text)
form.addRow(self.data_label_x, self.data_text_x)
form.addRow(self.data_label_y1_name,self.data_text_y1_name)
form.addRow(self.data_label_y1, self.data_text_y1)
form.addRow(self.data_label_y2_name,self.data_text_y2_name)
form.addRow(self.data_label_y2, self.data_text_y2)
'''折线图/柱状图布局结束'''
'''柱状图'''
form.addRow(self.pie_table_label, self.pie_table_text)
form.addRow(self.pie_radius, self.pie_radius_text)
form.addRow(self.pie_radius_cle, self.pie_radius_text_cle)
form.addRow(self.pie_data_label, self.pie_data_text)
'''柱状图'''
'''公共布局'''
form.addRow(self.save_dir_text, self.save_dir_btn)
form.addRow(self.version, self.generate_btn)
'''公共布局'''
hbox = QHBoxLayout()
hbox.addWidget(self.brower)
hbox.addSpacing(10)
hbox.addLayout(form)
self.setLayout(hbox)
def save_dir_btn_click(self):
directory = QFileDialog.getExistingDirectory(self, "选取文件夹", self.cwd)
self.save_dir_text.setText(directory)
def selected_cobox_change(self):
selected = self.selected_cobox.currentText().strip()
print(selected)
if selected == 'Line（折线/面积图）' \
or selected == 'Bar（柱状图/条形图）':
'''显示控件'''
self.title_label.setVisible(True)
self.title_text.setVisible(True)
self.subtitle_label.setVisible(True)
self.subtitle_text.setVisible(True)
self.data_label_x.setVisible(True)
self.data_text_x.setVisible(True)
self.data_label_y1.setVisible(True)
self.data_text_y1.setVisible(True)
self.data_label_y2.setVisible(True)
self.data_text_y2.setVisible(True)
self.data_label_y1_name.setVisible(True)
self.data_text_y1_name.setVisible(True)
self.data_label_y2_name.setVisible(True)
self.data_text_y2_name.setVisible(True)
'''隐藏控件'''
self.pie_table_label.setVisible(False)
self.pie_table_text.setVisible(False)
self.pie_data_label.setVisible(False)
self.pie_data_text.setVisible(False)
self.pie_radius.setVisible(False)
self.pie_radius_text.setVisible(False)
self.pie_radius_cle.setVisible(False)
self.pie_radius_text_cle.setVisible(False)
elif selected == 'Pie（饼图）':
'''隐藏控件'''
self.title_label.setVisible(False)
self.title_text.setVisible(False)
self.subtitle_label.setVisible(False)
self.subtitle_text.setVisible(False)
self.data_label_x.setVisible(False)
self.data_text_x.setVisible(False)
self.data_label_y1.setVisible(False)
self.data_text_y1.setVisible(False)
self.data_label_y2.setVisible(False)
self.data_text_y2.setVisible(False)
self.data_label_y1_name.setVisible(False)
self.data_text_y1_name.setVisible(False)
self.data_label_y2_name.setVisible(False)
self.data_text_y2_name.setVisible(False)
'''显示控件'''
self.pie_table_label.setVisible(True)
self.pie_table_text.setVisible(True)
self.pie_data_label.setVisible(True)
self.pie_data_text.setVisible(True)
self.pie_radius.setVisible(True)
self.pie_radius_text.setVisible(True)
self.pie_radius_cle.setVisible(True)
self.pie_radius_text_cle.setVisible(True)
def generate_btn_click(self):
selected = self.selected_cobox.currentText().strip()
if selected == 'Pie（饼图）':
pie_table_text = self.pie_table_text.text().strip()
print(pie_table_text)
pie_data_text_list = self.pie_data_text.text().strip().split(",")
print(pie_data_text_list)
list_data = []
for str_ in pie_data_text_list:
d_list = str_.split(":")
tuple_ = (d_list[0],) + (int(d_list[1]),)
list_data.append(tuple_)
print(list_data)
pie_radius_text = self.pie_radius_text.text()
print(pie_radius_text)
pie_radius_text_cle = self.pie_radius_text_cle.text()
print(pie_radius_text_cle)
pie = Pie()
pie.add(
series_name=pie_table_text,
data_pair=list_data,
radius=[pie_radius_text_cle, pie_radius_text],
rosetype='radius'
)
pie.set_series_opts(label_opts=options.LabelOpts(formatter='{b}：{d}%'))
pie.set_global_opts(title_opts=options.TitleOpts(title=pie_table_text))
html_file_path = self.save_dir_text.text().strip() + '/' + datetime.now().strftime("%Y%m%d%H%M%S") + '.html'
print(html_file_path)
pie.render(html_file_path)
self.brower.setUrl(QUrl(html_file_path))
elif selected == 'Bar（柱状图/条形图）':
title = self.title_text.text().strip()
subtitle = self.subtitle_text.text().strip()
data_x = list(self.data_text_x.text().strip().split(","))
data_y1 = list(self.data_text_y1.text().strip().split(","))
data_y2 = list(self.data_text_y2.text().strip().split(','))
bar = Bar()
bar.add_xaxis(data_x)
bar.add_yaxis(self.data_text_y1_name.text().strip(), data_y1)
bar.add_yaxis(self.data_text_y2_name.text().strip(), data_y2)
bar.set_global_opts(
title_opts=options.TitleOpts(title=title, subtitle=subtitle),
toolbox_opts=options.ToolboxOpts())
bar.set_series_opts(
label_opts=options.LabelOpts(is_show=False),
markpoint_opts=options.MarkPointOpts(data=[
options.MarkPointItem(type_='min', name='最小值'),
options.MarkPointItem(type_='max', name='最大值')
]))
html_file_path = self.save_dir_text.text().strip() + '/' + datetime.now().strftime("%Y%m%d%H%M%S") + '.html'
print(html_file_path)
bar.render(html_file_path)
self.brower.setUrl(QUrl(html_file_path))
elif selected == 'Line（折线/面积图）':
title = self.title_text.text().strip()
subtitle = self.subtitle_text.text().strip()
data_x = list(self.data_text_x.text().strip().split(","))
data_y1 = list(self.data_text_y1.text().strip().split(","))
data_y2 = list(self.data_text_y2.text().strip().split(','))
line = Line()
# 3. 关联数据
line.add_xaxis(data_x)
line.add_yaxis(self.data_text_y1_name.text().strip(), data_y1,
is_smooth=True)
line.add_yaxis(self.data_text_y2_name.text().strip(), data_y2, markpoint_opts=options.MarkPointOpts(
data=[options.MarkPointItem(type_='min', name='最小值')]
))
line.set_series_opts(markline_opts=options.MarkLineOpts(
data=[options.MarkPointItem(type_='average', name='平均值'),
options.MarkPointItem(type_='max', name='最大值')]
))
line.set_global_opts(title_opts=options.TitleOpts(title=title, subtitle=subtitle))
html_file_path = self.save_dir_text.text().strip() + '/' + datetime.now().strftime("%Y%m%d%H%M%S") + '.html'
print(html_file_path)
line.render(html_file_path)
self.brower.setUrl(QUrl(html_file_path))以上就是基于PyQt5制作一个数据图表生成器的详细内容，更多关于PyQt5数据图表生成的资料请关注其它相关文章！
加载全部内容