51. 다각형 그리기 (drawPolygon)

drawPolygon() 을 이용하면 다양한 다각형을 그릴 수 있습니다.

PyQt5.QtCore.QPoint Class를 이용해서 각 꼭지점의 점을  정의하고,

QPolygon Class를 이용해서 각 점들을 연결하여 다각형을 만듭니다.

마지막으로 drawPolygon()에 이 다각형을 입력함으로써 다각형이 그려집니다.

 

51-1 예제: ex50

import sys from PyQt5.QtWidgets import (QApplication, QWidget) from PyQt5.QtGui import (QPainter, QPen, QColor, QFont, QPolygon, QBrush) from PyQt5.QtCore import Qt, QPoint class MyApp(QWidget):     def __init__(self):         super().__init__()         self.initUI()     def initUI(self):         self.setGeometry(300, 300, 400, 300)         self.setWindowTitle('drawPolygon')         self.show()     def paintEvent(self, e):         qp = QPainter()         qp.begin(self)         self.draw_polygon(qp)         qp.end()     def draw_polygon(self, qp):         points1 = [             QPoint(20, 20),             QPoint(200, 80),             QPoint(150, 135),             QPoint(50, 115)         ]         polygon1 = QPolygon(points1)         qp.setPen(QPen(Qt.black, 3))         qp.drawPolygon(polygon1)         points2 = [             QPoint(220, 30),             QPoint(360, 10),             QPoint(250, 135)         ]         polygon2 = QPolygon(points2)         qp.setPen(QPen(Qt.red, 5, Qt.DashLine))         qp.setBrush(QBrush(Qt.yellow))         qp.drawPolygon(polygon2)         points3 = [             QPoint(95, 140),             QPoint(120, 190),             QPoint(185, 205),             QPoint(125, 230),             QPoint(140, 280),             QPoint(100, 230),             QPoint(70, 280),             QPoint(60, 220),             QPoint(15, 190),             QPoint(65, 180)         ]         polygon3 = QPolygon(points3)         qp.setPen(QPen(QColor('#1C91CF'), 4, Qt.DashDotDotLine))         qp.setBrush(QBrush(QColor('#37CF1C'), Qt.CrossPattern))         qp.drawPolygon(polygon3)         points4 = [             QPoint(290, 160),             QPoint(360, 190),             QPoint(335, 280),             QPoint(255, 270),             QPoint(230, 195)         ]         polygon4 = QPolygon(points4)         qp.setPen(QPen(QColor('#7B33D1'), 3))         qp.setBrush(QBrush(QColor('#D187EF')))         qp.drawPolygon(polygon4) if __name__ == '__main__':     app = QApplication(sys.argv)     win = MyApp()     sys.exit(app.exec_())

51-2 결과