Punten tekenen

Op deze pagina:

Punten zijn de meest eenvoudige dingen om te tekenen.

#!/usr/bin/python3
# -*- coding: utf-8 -*-

import sys, random

from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QColor, QPainter

class Venster(QWidget):

    def __init__(self):
        super(Venster, self).__init__()

        self.initUI()

    def initUI(self):

        self.setGeometry(400, 400, 300, 180)
        self.setWindowTitle('Punten')
        self.show()

    def paintEvent(self, e):

        # Elk Painter event staat tussen .begin() en .end()
        qp = QPainter()
        qp.begin(self)
        self.drawPoints(qp)
        qp.end()

    def drawPoints(self, qp):

        qp.setPen(QColor(0, 0, 255))
        size = self.size()

        for i in range(1000):
            x = random.randint(1, size.width()-1)
            y = random.randint(1, size.height()-1)
            qp.drawPoint(x, y)

def main():

    app = QApplication(sys.argv)
    window = Venster()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

Verwante artikelen