如何将此PyQt输出与底部的python文件链接？我查看了各种教程，但我无法弄明白。如何设置单选按钮的值，如果有人点击地球r用6.4 * 10 ** 6填充，g设置为9.8？
来自Qt designer 的import sys
from PyQt4 import QtCore, QtGui
from projectile_ui import Ui_Form
class MyForm(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_Form()
self.ui.setupUi(self)
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
_fromUtf8 = lambda s: s
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName(_fromUtf8("Form"))
Form.resize(443, 340)
self.Tilte = QtGui.QLabel(Form)
self.Tilte.setGeometry(QtCore.QRect(130, 10, 131, 16))
self.Tilte.setObjectName(_fromUtf8("Tilte"))
self.Vo = QtGui.QDoubleSpinBox(Form)
self.Vo.setGeometry(QtCore.QRect(20, 40, 81, 22))
self.Vo.setMaximum(999999999.0)
self.Vo.setObjectName(_fromUtf8("Vo"))
self.angle = QtGui.QDoubleSpinBox(Form)
self.angle.setGeometry(QtCore.QRect(20, 70, 81, 22))
self.angle.setMaximum(90.0)
self.angle.setObjectName(_fromUtf8("angle"))
self.dt = QtGui.QDoubleSpinBox(Form)
self.dt.setGeometry(QtCore.QRect(20, 100, 81, 22))
self.dt.setDecimals(3)
self.dt.setMinimum(0.0)
self.dt.setMaximum(1.0)
self.dt.setSingleStep(0.001)
self.dt.setProperty("value", 0.01)
self.dt.setObjectName(_fromUtf8("dt"))
self.Jupiter = QtGui.QRadioButton(Form)
self.Jupiter.setGeometry(QtCore.QRect(20, 240, 82, 17))
self.Jupiter.setObjectName(_fromUtf8("Jupiter"))
self.Saturn = QtGui.QRadioButton(Form)
self.Saturn.setGeometry(QtCore.QRect(20, 260, 82, 17))
self.Saturn.setObjectName(_fromUtf8("Saturn"))
self.Sun = QtGui.QRadioButton(Form)
self.Sun.setGeometry(QtCore.QRect(20, 140, 82, 17))
self.Sun.setCheckable(True)
self.Sun.setObjectName(_fromUtf8("Sun"))
self.Venus = QtGui.QRadioButton(Form)
self.Venus.setGeometry(QtCore.QRect(20, 180, 82, 17))
self.Venus.setObjectName(_fromUtf8("Venus"))
self.Mars = QtGui.QRadioButton(Form)
self.Mars.setGeometry(QtCore.QRect(20, 220, 82, 17))
self.Mars.setObjectName(_fromUtf8("Mars"))
self.Neptune = QtGui.QRadioButton(Form)
self.Neptune.setGeometry(QtCore.QRect(20, 300, 82, 17))
self.Neptune.setObjectName(_fromUtf8("Neptune"))
self.Earth = QtGui.QRadioButton(Form)
self.Earth.setGeometry(QtCore.QRect(20, 200, 82, 17))
self.Earth.setObjectName(_fromUtf8("Earth"))
self.Uranus = QtGui.QRadioButton(Form)
self.Uranus.setGeometry(QtCore.QRect(20, 280, 82, 17))
self.Uranus.setObjectName(_fromUtf8("Uranus"))
self.Mercury = QtGui.QRadioButton(Form)
self.Mercury.setGeometry(QtCore.QRect(20, 160, 82, 17))
self.Mercury.setObjectName(_fromUtf8("Mercury"))
self.Vo_Label = QtGui.QLabel(Form)
self.Vo_Label.setGeometry(QtCore.QRect(110, 40, 71, 21))
self.Vo_Label.setObjectName(_fromUtf8("Vo_Label"))
self.Angle_Label = QtGui.QLabel(Form)
self.Angle_Label.setGeometry(QtCore.QRect(110, 70, 61, 21))
self.Angle_Label.setObjectName(_fromUtf8("Angle_Label"))
self.dt_Label = QtGui.QLabel(Form)
self.dt_Label.setGeometry(QtCore.QRect(110, 100, 61, 21))
self.dt_Label.setObjectName(_fromUtf8("dt_Label"))
self.LCDheight = QtGui.QLCDNumber(Form)
self.LCDheight.setGeometry(QtCore.QRect(230, 150, 181, 71))
self.LCDheight.setObjectName(_fromUtf8("LCDheight"))
self.lcdTotaltime = QtGui.QLCDNumber(Form)
self.lcdTotaltime.setGeometry(QtCore.QRect(230, 250, 181, 71))
self.lcdTotaltime.setObjectName(_fromUtf8("lcdTotaltime"))
self.label = QtGui.QLabel(Form)
self.label.setGeometry(QtCore.QRect(230, 132, 181, 21))
self.label.setObjectName(_fromUtf8("label"))
self.label_2 = QtGui.QLabel(Form)
self.label_2.setGeometry(QtCore.QRect(230, 232, 181, 21))
self.label_2.setObjectName(_fromUtf8("label_2"))
self.pushButton = QtGui.QPushButton(Form)
self.pushButton.setGeometry(QtCore.QRect(230, 50, 181, 61))
self.pushButton.setAutoFillBackground(False)
self.pushButton.setDefault(False)
self.pushButton.setFlat(False)
self.pushButton.setObjectName(_fromUtf8("pushButton"))
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
Form.setWindowTitle(QtGui.QApplication.translate("Form", "Form", None, QtGui.QApplication.UnicodeUTF8))
self.Tilte.setText(QtGui.QApplication.translate("Form", "Projectile Motion Calculator", None, QtGui.QApplication.UnicodeUTF8))
self.Jupiter.setText(QtGui.QApplication.translate("Form", "Jupiter", None, QtGui.QApplication.UnicodeUTF8))
self.Saturn.setText(QtGui.QApplication.translate("Form", "Saturn", None, QtGui.QApplication.UnicodeUTF8))
self.Sun.setText(QtGui.QApplication.translate("Form", "Sun ", None, QtGui.QApplication.UnicodeUTF8))
self.Venus.setText(QtGui.QApplication.translate("Form", "Venus", None, QtGui.QApplication.UnicodeUTF8))
self.Mars.setText(QtGui.QApplication.translate("Form", "Mars", None, QtGui.QApplication.UnicodeUTF8))
self.Neptune.setText(QtGui.QApplication.translate("Form", "Neptune", None, QtGui.QApplication.UnicodeUTF8))
self.Earth.setText(QtGui.QApplication.translate("Form", "Earth", None, QtGui.QApplication.UnicodeUTF8))
self.Uranus.setText(QtGui.QApplication.translate("Form", "Uranus", None, QtGui.QApplication.UnicodeUTF8))
self.Mercury.setText(QtGui.QApplication.translate("Form", "Mercury", None, QtGui.QApplication.UnicodeUTF8))
self.Vo_Label.setText(QtGui.QApplication.translate("Form", "Initial Velocity ", None, QtGui.QApplication.UnicodeUTF8))
self.Angle_Label.setText(QtGui.QApplication.translate("Form", "Angle", None, QtGui.QApplication.UnicodeUTF8))
self.dt_Label.setToolTip(QtGui.QApplication.translate("Form", "<html><head/><body><p>Smaller number gives more accurate results.</p></body></html>", None, QtGui.QApplication.UnicodeUTF8))
self.dt_Label.setText(QtGui.QApplication.translate("Form", "Time Step", None, QtGui.QApplication.UnicodeUTF8))
self.label.setText(QtGui.QApplication.translate("Form", "Max Height ", None, QtGui.QApplication.UnicodeUTF8))
self.label_2.setText(QtGui.QApplication.translate("Form", "Total Time ", None, QtGui.QApplication.UnicodeUTF8))
self.pushButton.setText(QtGui.QApplication.translate("Form", "Calculate", None, QtGui.QApplication.UnicodeUTF8))
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
myapp = MyForm()
myapp.show()
sys.exit(app.exec_())
from math import*
def main():
loopiterations = int()
dt = eval(input("")) ##time step
Vo = eval(input(""))
xo = 0
yo = 0
angle = eval(input(""))
angle = angle * (pi / 180)
Vox = Vo * cos(angle)
Voy = Vo * sin(angle)
y = (yo + Voy * dt)
r=eval(input("")) ## r= 6.4*10**6 for earth
g = eval(input("")) ## m/s **2
Vy=Voy - g * dt
iterations = 0
while not (Vy < 0):
y = (yo + Voy * dt)
Vy= (Voy - g * dt)
x = (xo + Vox * dt)
Vx = Vox
iterations = iterations + 1
yo = y
xo = x
Vox = Vx
Voy = Vy
print (y)
print(iterations)
答案 0 :(得分：1)
如果您在QtDesigner中设计了该UI并仍然使用.ui文件，那么使用它的简单方法是实际上不打扰pyuic，只需直接使用它：
from PyQt4 import uic
...
class ProjectileObject(QtCore.QObject):
def __init__(self):
super(ProjectileObject, self).__init__()
self.ui = None
self.ui = uic.loadUi('projectile.ui', self.ui)
self.ui.Saturn.clicked.connect(self.radioClicked) #These lines connect your
self.ui.Uranus.clicked.connect(self.radioClicked) #interface to your code
... #you can look up other signals as well
self.ui.show()
def radioClicked():
#This code can inspect the various radio buttons, and take different actions
#depending on which one was clicked
请注意，使用QtDesigner中的动作编辑器创建“switchPlanet”动作，然后使用Signal / Slot编辑器将所有单选按钮连接到QtDesigner中的该动作更加高效，然后您只需执行类似的操作代码中self.ui.switchPlanet.triggered.connect(self.radioClicked)，您只需要执行一次。
答案 1 :(得分：1)
首先，为了解决您的单选按钮，我会将它们放入代码中的QButtonGroup。它会将所有这些按钮合并为一个单一的联系点，并能够将它们排除在外：
self.planetGroup = QtGui.QButtonGroup(self)
self.planetGroup.setExclusive(True)
self.planetGroup.addButton(self.Saturn)
self.planetGroup.addButton(self.Uranus)
self.planetGroup.buttonClicked["QAbstractButton*"].connect(self.planetChanged)
self.planetChanged(self, planetButton):
if planetButton == self.Saturn:
# do something
elif planetButton == self.Uranus:
# do something
您甚至可以通过使用包含每个按钮的有线值的dict来简化：
self._planetVals = {
self.Saturn: "saturn",
self.Uranus: "uranus",
}
self.planetChanged(self, planetButton):
do_stuff_with(self._planetVals[planetButton])
现在针对您的main代码存在问题。需要将其与使用input收集用户输入的依赖关系及其业务逻辑分开：
from math import *
def main():
dt = eval(input("")) ##time step
Vo = eval(input(""))
angle = eval(input(""))
r=eval(input("")) ## r= 6.4*10**6 for earth
g = eval(input("")) ## m/s **2
print process(dt, Vo, angle, r, g)
def process(dt, Vo, angle, r, g):
loopiterations = 0
xo = 0
yo = 0
angle = angle * (pi / 180)
Vox = Vo * cos(angle)
Voy = Vo * sin(angle)
y = (yo + Voy * dt)
Vy=Voy - g * dt
iterations = 0
while not (Vy < 0):
y = (yo + Voy * dt)
Vy= (Voy - g * dt)
x = (xo + Vox * dt)
Vx = Vox
iterations = iterations + 1
yo = y
xo = x
Vox = Vx
Voy = Vy
# print (y)
# print(iterations)
return y, iterations
现在您可以自由导入该模块并使用process函数，通过传递从您的UI收集的值
这个难题的缺失部分是创建一个主要的PyQt4窗口类，它使用您的Qt Designer UI和您的通用业务逻辑来运行该应用程序。
答案 2 :(得分：0)
查看您发布的代码，您需要做的第一件事就是保留pyuic生成的模块：不要编辑它。
相反，您应该将其导入到一个单独的模块中，其中包含所有主程序逻辑。这将允许您在Qt Designer中更改内容并重新生成ui模块而不会干扰其他代码。
下面的脚本将示例中的两段代码链接在一起。保存为projectile.py，然后使用pyuic重新生成您的ui模块，并将其另存为projectile_ui.py。
显然，您需要稍微调整一下脚本，以便按照您想要的方式运行，但希望它能帮助您入门。
from math import*
from PyQt4 import QtCore, QtGui
from projectile_ui import Ui_Form
constants = {
'Sun': (0, 0),
'Mercury': (0, 0),
'Venus': (0, 0),
'Earth': (6.4*10**6, 9.81),
'Mars': (0, 0),
'Jupiter': (0, 0),
'Saturn': (0, 0),
'Uranus': (0, 0),
'Neptune': (0, 0),
}
class MyForm(QtGui.QMainWindow, Ui_Form):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.setupUi(self)
self.radioButtons = QtGui.QButtonGroup(self)
self.radioButtons.addButton(self.Sun)
self.radioButtons.addButton(self.Mercury)
self.radioButtons.addButton(self.Venus)
self.radioButtons.addButton(self.Earth)
self.radioButtons.addButton(self.Mars)
self.radioButtons.addButton(self.Jupiter)
self.radioButtons.addButton(self.Saturn)
self.radioButtons.addButton(self.Uranus)
self.radioButtons.addButton(self.Neptune)
self.pushButton.clicked.connect(self.handleCalculate)
def handleCalculate(self):
loopiterations = int()
dt = self.dt.value() # time step
Vo = self.Vo.value()
xo = 0
yo = 0
angle = self.angle.value()
angle = angle * (pi / 180)
Vox = Vo * cos(angle)
Voy = Vo * sin(angle)
y = (yo + Voy * dt)
iterations = y = r = g = 0
button = self.radioButtons.checkedButton()
if button is not None:
# r= 6.4*10**6 for earth, g= m/s **2
r, g = constants[str(button.objectName())]
Vy=Voy - g * dt
if r > 0 and g > 0:
while not (Vy < 0):
y = (yo + Voy * dt)
Vy= (Voy - g * dt)
x = (xo + Vox * dt)
Vx = Vox
iterations = iterations + 1
yo = y
xo = x
Vox = Vx
Voy = Vy
self.LCDheight.display(y)
self.lcdTotaltime.display(iterations)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
myapp = MyForm()
myapp.show()
sys.exit(app.exec_())