matplotlib和pyqt5 - 使用按钮手柄刷新

时间：2016-08-26 03:34:05

标签： python matplotlib pyqt5

我是Python编程的新手，我最近刚开始。 我也在发现OOP，我主要编写基于ASM和C语言的嵌入式软件。 我有一个小项目，我需要读取文件，获取数据并“清理”它们。这些数据绘制在笛卡尔坐标和极坐标中的图上。到目前为止，我已经实现了在这里和那里获取代码的示例，并使用pyQt5创建接口并在它们上集成两个matplotlib画布。

我创建了一个名为'clean'的按钮，当按下它时会创建一个正常工作的事件，它会清理数据，但到目前为止我还没有用刷新的数据刷新画布。

我认为我迷失了pyQt集成的OOP中的类，函数和变量。

有人可以帮我看一下程序的主要结构并指出我的问题吗？ 我也知道我的python代码不是那么'干净'并且我没有使用它的优点而且我详细说明了很多......这来自C背景。

见下面的代码，我已从文件中删除了数据处理。我需要绘制以下列表名为 LDTvalue [] [] ，我在一个图上有两个图，它是 LDTvalue [0]和LDTvalue [6] ：

我发现在点击按钮时我无法更改任何小部件。例如，窗口标题会更改但不会更改窗口小部件标签。所以这就是我强烈怀疑搞乱类和对象的功能。

### UPDATE，我复制了完整的代码，有点脏，但是第一次尝试:) ### 

import sys
import matplotlib
matplotlib.use("Qt5Agg")
from PyQt5 import QtCore
from PyQt5.QtWidgets import *
from numpy import arange, sin, cos, pi, radians
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure


LDTheader = {'Company': 'xxx','Type_ind': 0,'Symmetry': 0, 'Mc': 0, 'Dc': 0 , 'Ng': 0, 'Dg': 0}
LDTline = list()
LDTCplane = list()
LDTCvalue = list()
LDTvalue = list()
LDTvalue2 = list()

LDTtemplist = list()

LDTfile = open('01.ldt')
for line in LDTfile :
    LDTline.append(line.strip())

LDTheader['Company'] = LDTline[0];
LDTheader['Type_ind'] = LDTline[1];
LDTheader['Symmetry'] = LDTline[2];


LDTheader['Mc'] = int(LDTline[3]);
LDTheader['Dc'] = float(LDTline[4]);
LDTheader['Ng'] = int(LDTline[5]);
LDTheader['Dg'] = float(LDTline[6]);

print("Company name:", LDTheader['Company'])
print("Type indicator:", LDTheader['Type_ind'])
print("Symmetry:", LDTheader['Symmetry'])

print("Mc:", LDTheader['Mc'])
print("Dc", LDTheader['Dc'])
print("Ng:", LDTheader['Ng'])
print("Dg:", LDTheader['Dg'])

if LDTheader['Type_ind'] == '1' :
    print('1 - point source with symmetry about the vertical axis')
elif LDTheader['Type_ind'] == '2' :
    print('2 - linear luminaire')
elif LDTheader['Type_ind'] == '3' :
    print('3 - point source with any other symmetry')
else: print('Error in source type indicator!')

if LDTheader['Symmetry'] == '0' :
    print('0 - no symmetry')
elif LDTheader['Symmetry'] == '1' :
    print('1 - symmetry about the vertical axis')
elif LDTheader['Symmetry'] == '2' :
    print('2- symmetry to plane C0-C180')
elif LDTheader['Symmetry'] == '3' :
    print('3- symmetry to plane C90-C270')
elif LDTheader['Symmetry'] == '4' :
    print('4- symmetry to plane C0-C180 and to plane C90-C270')
else: print('Error in symmetry paramater!')

for i in range(42,42+LDTheader['Mc']) :
    LDTCplane.append(LDTline[i])

for i in range(42+LDTheader['Mc'],42+LDTheader['Mc']+LDTheader['Ng']) :
    LDTCvalue.append(float(LDTline[i]))


#Separate all the values of the different Cplane in a list of a list called LDTvalue 
#print(int(LDTheader['Mc']/int(LDTheader['Symmetry']))+1)
for j in range(0,int(LDTheader['Mc']/int(LDTheader['Symmetry']))+1):    
    if LDTheader['Symmetry'] == '4':
        for i in range(1,LDTheader['Ng']):
            LDTtemplist.append(float(LDTline[42+LDTheader['Ng']*(j+1)+LDTheader['Mc']+(LDTheader['Ng']-i)]))
        for i in range(0,LDTheader['Ng']-1):
            LDTtemplist.append(float(LDTline[42+LDTheader['Ng']*(j+1)+LDTheader['Mc']+(i)]))
        LDTvalue.append(list(LDTtemplist))
        del LDTtemplist
        LDTtemplist = list()

if LDTheader['Symmetry'] == '4':
    for i in range(1,LDTheader['Ng']):
        LDTtemplist.append(float(LDTline[42+LDTheader['Ng']+LDTheader['Mc']+(LDTheader['Ng']-i)]))
    for i in range(0,LDTheader['Ng']-1):
        LDTtemplist.append(float(LDTline[42+LDTheader['Ng']+LDTheader['Mc']+(i)]))
LDTvalue2 = LDTtemplist
del LDTtemplist
LDTtemplist = list()

class MyPDiagram(FigureCanvas):
    def __init__(self, parent=None, width=5, height=4, dpi=100):
        fig = Figure(figsize=(width, height), dpi=dpi)
        self.axes = fig.add_subplot(111,projection='polar')

        # We want the axes cleared every time plot() is called
        #self.axes.hold(False)

        t = arange(-180,180,LDTheader['Dg'])
        t = radians(t)
        self.axes.plot(t, LDTvalue[0], color='r', linewidth=1)
        self.axes.plot(t, LDTvalue[6], color='b', linewidth=1)
        self.axes.set_theta_zero_location("S")
        self.axes.grid(True)

        FigureCanvas.__init__(self, fig)
        self.setParent(parent)

        FigureCanvas.setSizePolicy(self,
                QSizePolicy.Expanding,
                QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)



class MyCDiagram(FigureCanvas):
    def __init__(self, parent=None, width=5, height=4, dpi=100):
        fig = Figure(figsize=(width, height), dpi=dpi)
        self.axes = fig.add_subplot(111)

        # We want the axes cleared every time plot() is called
        #self.axes.hold(False)

        x = arange(-180,180,LDTheader['Dg'])
        self.axes.plot(x, LDTvalue[0], color='r', linewidth=1)
        self.axes.plot(x, LDTvalue[6], color='b', linewidth=1)
        self.axes.grid(True)
        #
        FigureCanvas.__init__(self, fig)
        self.setParent(parent)

        FigureCanvas.setSizePolicy(self,
                QSizePolicy.Expanding,
                QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)



class MainWindow(QWidget):


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

        self.initUI()


    def initUI(self):

        buttonOK = QPushButton('OK')
        buttonClean = QPushButton('Clean')
        pd_label = QLabel('Polar Diagram')
        pd = MyPDiagram(QWidget(self), width=5, height=4, dpi=100)
        cd_label = QLabel('Carthesian Diagram')
        cd = MyCDiagram(QWidget(self), width=5, height=4, dpi=100)

        buttonClean.clicked.connect(self.handleButtonClean)

        grid = QGridLayout()
        grid.setSpacing(10)

        grid.addWidget(buttonOK, 1, 0)

        grid.addWidget(buttonClean, 1, 1)

        grid.addWidget(pd_label, 2, 0)
        grid.addWidget(pd, 3, 0, 5, 1)

        grid.addWidget(cd_label, 2, 1)
        grid.addWidget(cd, 3, 1, 5, 1)
        grid.update()
        self.setLayout(grid) 

        self.setGeometry(300, 300, 1000, 600)
        self.setWindowTitle('W&D LDTcleaner')    



    def handleButtonClean(self):
        #1. Clean the value above 90 degrees
        for j in range(0,int(LDTheader['Mc']/int(LDTheader['Symmetry']))+1): 
            for i in range(180,LDTheader['Ng']-1):
                LDTvalue[j][i] = 0

        #2. Clean when center value is not the max
        for j in range(0,int(LDTheader['Mc']/int(LDTheader['Symmetry']))+1): 
            for i in range(0,LDTheader['Ng']-1):
                if LDTvalue[j][0] < max(LDTvalue[j]):
                    LDTvalue[j][0] = max(LDTvalue[j])



        self.initUI() #-----> This is where I am blocked. I tried to recall initUI()
        print('Cleaned!')


if __name__ == '__main__':

    app = QApplication(sys.argv)
    ex = MainWindow()
    ex.show()
    sys.exit(app.exec_())

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