analitics

Pages

Showing posts with label PyQtChart. Show all posts
Showing posts with label PyQtChart. Show all posts

Wednesday, February 19, 2020

Python 3.7.5 : The PyQtChart from python Qt5.

The PyQtChart is a set of Python bindings for The Qt Company’s Qt Charts library and is implemented as a single module.
Let's install this python package with the pip3 tool:
[mythcat@desk ~]$ pip3 install PyQtChart --user
...
Installing collected packages: PyQtChart
Successfully installed PyQtChart-5.14.0
Let's test with a simple example:
from PyQt5.QtWidgets import QApplication, QMainWindow
import sys
from PyQt5.QtChart import QChart, QChartView, QPieSeries, QPieSlice
from PyQt5.QtGui import QPainter, QPen
from PyQt5.QtCore import Qt

class Window(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("testing Pie Chart")
        self.setGeometry(100,100, 640,480)
        self.show()
        self.create_piechart()

    def create_piechart(self):

        series = QPieSeries()
        #append all values with a sum of 360 
        series.append("size 5", 5)
        series.append("size 10", 10)
        series.append("size 30", 30)
        series.append("size 45", 45)
        series.append("size 90", 90)
        series.append("size 180", 180)

        #adding slice 
        slice = QPieSlice()
        slice = series.slices()[2]
        slice.setExploded(True)
        slice.setLabelVisible(True)
        slice.setPen(QPen(Qt.darkGreen, 1))
        slice.setBrush(Qt.green)
        slice = series.slices()[4]
        slice.setExploded(False)
        slice.setLabelVisible(True)
        slice.setPen(QPen(Qt.red, 1))
        #slice.setBrush(Qt.blue)

        #create chart 
        chart = QChart()
        #chart.legend().hide()
        chart.addSeries(series)
        chart.createDefaultAxes()
        chart.setAnimationOptions(QChart.SeriesAnimations)
        chart.setTitle("The all 360 on  chart .")

        chart.legend().setVisible(True)
        chart.legend().setAlignment(Qt.AlignBottom)

        chartview = QChartView(chart)
        chartview.setRenderHint(QPainter.Antialiasing)

        self.setCentralWidget(chartview)

App = QApplication(sys.argv)
window = Window()
sys.exit(App.exec_())
The result can be seen in the next image: