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| from PyQt5.QtWidgets import (QMainWindow,QApplication,QWidget,QSpinBox,
QLabel,QDoubleSpinBox,QCheckBox,QGraphicsScene,
QGraphicsView,QVBoxLayout,QGridLayout,QPushButton)
from PyQt5.QtGui import (QPen, QPainter,QImage,QFont,QBrush)
from PyQt5 import QtCore
import sys
import numpy as np
import operator
class fenPrincipale(QMainWindow):
def __init__(self):
QMainWindow.__init__(self)
fenetre_widget = QWidget()
self.pen=QPen()
self.pen.setColor(QtCore.Qt.black)
self.pen2=QPen()
self.pen2.setColor(QtCore.Qt.red)
self.pen2.setWidth(2)
self.bouton=QPushButton("Save")
self.label_grand_rayon=QLabel()
self.label_grand_rayon.setText("Grand rayon:")
self.label_grand_rayon.setFixedWidth(100)
self.label_petit_rayon=QLabel()
self.label_petit_rayon.setText("Petit rayon:")
self.label_petit_rayon.setFixedWidth(100)
self.label_angle=QLabel()
self.label_angle.setText("Angle:")
self.label_angle.setFixedWidth(20)
self.angle=QDoubleSpinBox()
self.angle.setRange(0, 90)
self.angle.setSingleStep(1)
self.angle.setValue(0)
self.grand_rayon=QDoubleSpinBox()
self.grand_rayon.setRange(2,999)
self.grand_rayon.setSingleStep(1)
self.grand_rayon.setValue(200)
self.petit_rayon=QDoubleSpinBox()
self.petit_rayon.setRange(2,999)
self.petit_rayon.setSingleStep(1)
self.petit_rayon.setValue(150)
self.scene=QGraphicsScene()
self.view =QGraphicsView(self.scene)
LayoutV=QVBoxLayout()
LayoutGrid=QGridLayout()
LayoutV.addLayout(LayoutGrid)
LayoutGrid.addWidget(self.grand_rayon,0,1)
LayoutGrid.addWidget(self.label_grand_rayon,0,0)
LayoutGrid.addWidget(self.petit_rayon,1,1)
LayoutGrid.addWidget(self.label_petit_rayon,1,0)
LayoutGrid.addWidget(self.label_angle,1,2)
LayoutGrid.addWidget(self.angle,1,3)
LayoutGrid.addWidget(self.bouton,0,3)
LayoutV.addWidget(self.view)
fenetre_widget.setLayout(LayoutV)
self.setCentralWidget(fenetre_widget)
#deg=180*rad/pi
self.grand_rayon.valueChanged.connect(self.dessin_cercle)
self.petit_rayon.valueChanged.connect(self.dessin_cercle)
self.angle.valueChanged.connect(self.variation_angle)
self.bouton.clicked.connect(self.save_image)
self.resize(600,600)
self.dessin_cercle()
self.variation_angle()
def dessin_cercle(self):
self.scene.clear()
self.nbpoints=720
self.theta = np.linspace(0, 360, self.nbpoints)
self.x = np.cos(self.theta*np.pi/180)
self.y = np.sin(self.theta*np.pi/180)
self.coefficient=self.grand_rayon.value()
for i in range(0, self.nbpoints-1):
self.scene.addLine(self.x[i]*self.coefficient,self.y[i]*self.coefficient,self.x[i+1]*self.coefficient,self.y[i+1]*self.coefficient,self.pen)
self.coefficient=self.petit_rayon.value()
for i in range(0, self.nbpoints-1):
self.scene.addLine(self.x[i]*self.coefficient,self.y[i]*self.coefficient,self.x[i+1]*self.coefficient,self.y[i+1]*self.coefficient,self.pen)
def variation_angle(self):
try:
print(self.trait1)
self.scene.removeItem(self.trait1)
except:
print("pas de ligne1")
print("5")
try:
print(self.trait2)
self.scene.removeItem(self.trait2)
except:
print("pas de ligne2")
print("6")
try:
print(self.trait3)
self.scene.removeItem(self.trait3)
except:
print("pas de ligne3")
try:
self.scene.removeItem(self.label_erreur)
except:
print("pas de légende!")
self.x_petit_rayon=(np.cos(self.angle.value()*np.pi/180))*self.petit_rayon.value()
self.h_petit_rayon=(np.sin(self.angle.value()*np.pi/180))*self.petit_rayon.value()
self.angle_eq_grand_rayon=np.arcsin((self.h_petit_rayon)/(self.grand_rayon.value()))*180/np.pi
self.x_eq_grand_rayon=np.cos(self.angle_eq_grand_rayon*np.pi/180)*self.grand_rayon.value()
self.mesure_vrai=self.grand_rayon.value()-self.petit_rayon.value()
self.mesure_mesuree=self.x_eq_grand_rayon-self.x_petit_rayon
self.pourcentage_erreur=(((self.x_eq_grand_rayon-self.x_petit_rayon)/(self.mesure_vrai))-1)*100
self.trait1=self.scene.addLine(self.x_petit_rayon,self.h_petit_rayon,0,0,self.pen)
self.trait2=self.scene.addLine(self.x_eq_grand_rayon,self.h_petit_rayon,0,0,self.pen)
self.trait3=self.scene.addLine(self.x_petit_rayon,self.h_petit_rayon,self.x_eq_grand_rayon,self.h_petit_rayon,self.pen2)
self.label_erreur=self.scene.addSimpleText (("Erreur (en %): " + str(round(self.pourcentage_erreur,2))), QFont('Norasi', float(14)))
self.label_erreur.setBrush(QBrush(QtCore.Qt.red))
self.label_erreur.setY(-self.grand_rayon.value())
self.label_erreur.setX(self.grand_rayon.value()/2)
def save_image(self):
outputimg = QPixmap(500, 500)
painter = QPainter(outputimg)
targetrect = QRectF(0, 0, 500, 500)
sourcerect = QRect(0, 0, 500, 500)
self.view.render(painter, targetrect, sourcerect)
outputimg.save("bibi.png", "PNG")
painter.end()
def main(args):
appli=QApplication(args)
fenetre=fenPrincipale()
fenetre.show()
r=appli.exec_()
return r
if __name__=="__main__":
main(sys.argv) |
