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Hopfield_Ui.py
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Hopfield_Ui.py
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from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5 import QtGui, QtCore
import sys
import numpy as np
from Hopfield_Distance import distance_matrix, normalize, distanceLines, arrayTwoToOne
from Hopfield_Algorithm import HopfieldNet
from Hopfield_CreateCity import CreateCity
shape = ["Init", "LoadMap", "Points", "Lines"]
class TSPThread(QThread):
signal_msg = QtCore.pyqtSignal(str)
signal_draw = QtCore.pyqtSignal(str)
def __init__(self, parent=None):
super(TSPThread, self).__init__(parent)
self.running = False #线程开关标志位
self.iter = 0
def startTSP(self):
self.start()
self.running = True # 开启线程
def stopTSP(self):
# self.start()
self.running = False # 停止线程
def run(self):
bestDistance = 100000.00
bestDistance_x = []
bestDistance_y = []
for i in range(city_num):
bestDistance_x.append(distance_x[i])
bestDistance_y.append(distance_y[i])
self.signal_msg.emit("路径搜索中...")
distances = distance_matrix(city_matrix)
normalized_distances = normalize(distances)
net = HopfieldNet(normalized_distances)
while self.running:
self.iter += 1
net.update()
TransformArray = net.EnergyToAddress()
valid = net.HopfieldValidTest(TransformArray)
if valid == True:
x = np.mat(distance_x)
y = np.mat(distance_y)
t = np.mat(TransformArray)
newdistance_x = (x * t).tolist()[0]
newdistance_y = (y * t).tolist()[0]
for i in range(city_num):
distance_x[i] = newdistance_x[i]
distance_y[i] = newdistance_y[i]
else:
self.sleep(0.001)
DistanceCity = distanceLines(city_num, distance_x, distance_y)
if DistanceCity < bestDistance:
bestDistance = DistanceCity
for i in range(city_num):
bestDistance_x[i] = distance_x[i]
bestDistance_y[i] = distance_y[i]
for i in range(city_num):
distance_x[i] = bestDistance_x[i]
distance_y[i] = bestDistance_y[i]
self.signal_draw.emit("Lines")
if self.iter % 100 == 0:
DistanceCity = distanceLines(city_num, distance_x, distance_y)
self.signal_msg.emit("第 %d 次路径搜索" % self.iter)
self.signal_msg.emit("当前路径长度为:%.2f" % DistanceCity)
self.signal_msg.emit("最短路径长度为 :%.2f" % bestDistance)
self.sleep(0.01)
class StockDialog(QWidget):
def __init__(self):
super(StockDialog, self).__init__()
self.init_ui()
self.TSP = TSPThread()
self.TSP.signal_msg.connect(self.slotShowMsg)
self.TSP.signal_draw.connect(self.slotSetShape)
def init_ui(self):
self.setWindowTitle("Hopfield神经网络解决TSP问题程序")
mainSplitter = QSplitter(Qt.Horizontal)
mainSplitter.setOpaqueResize(True)
frame = QFrame(mainSplitter)
mainLayout = QGridLayout(frame)
mainLayout.setSpacing(6)
self.LoadMapPushButton = QPushButton("加载地图")
self.InitPushButton = QPushButton("初始化")
self.StartPushButton = QPushButton("开始搜索")
self.EndPushButton = QPushButton("结束搜索")
self.ExitPushButton = QPushButton("退出程序")
self.OutputLabel = QLabel("运行信息")
self.OutputTextEdit = QTextEdit()
# 建立布局
PushButtonCol = 0.4
mainLayout.addWidget(self.LoadMapPushButton, 0, PushButtonCol)
mainLayout.addWidget(self.InitPushButton, 1, PushButtonCol)
mainLayout.addWidget(self.StartPushButton, 2, PushButtonCol)
mainLayout.addWidget(self.EndPushButton, 3, PushButtonCol)
mainLayout.addWidget(self.ExitPushButton, 4, PushButtonCol)
mainLayout.addWidget(self.OutputLabel, 5, PushButtonCol)
mainLayout.addWidget(self.OutputTextEdit, 6, PushButtonCol)
mainSplitter1 = QSplitter(Qt.Horizontal)
mainSplitter1.setOpaqueResize(True)
stack1 = QStackedWidget()
stack1.setFrameStyle(QFrame.Panel | QFrame.Raised)
self.area = PaintArea()
stack1.addWidget(self.area)
frame1 = QFrame(mainSplitter1)
mainLayout1 = QVBoxLayout(frame1)
mainLayout1.setSpacing(6)
mainLayout1.addWidget(stack1)
layout = QGridLayout(self)
layout.addWidget(mainSplitter, 0, 0.5) # 两个ui的位置,第二个参数为行,打三个参数为列
layout.addWidget(mainSplitter1, 0, 1)
self.setLayout(layout)
# 信号和槽函数
self.LoadMapPushButton.clicked.connect(self.slotLoadMap)
self.InitPushButton.clicked.connect(self.slotInitialization)
self.StartPushButton.clicked.connect(self.slotStartSearch)
self.EndPushButton.clicked.connect(self.slotStopSearch)
self.ExitPushButton.clicked.connect(self.slotClose)
self.area.setShape("Init") #初始化, 画与背景颜色相同的点
def slotSetShape(self, shape):
self.area.setShape("%s" % shape)
def slotLoadMap(self):
self.area.setShape("LoadMap")
def slotInitialization(self):
self.area.setShape("Lines")
DistanceCity = distanceLines(city_num, distance_x, distance_y)
self.slotShowMsg("初始总距离:%.2f" % DistanceCity)
def slotStartSearch(self, evt=None):
self.slotShowMsg("开始搜索路径...")
self.TSP.startTSP()
def slotStopSearch(self):
self.slotShowMsg("结束路径搜索")
self.TSP.stopTSP()
def slotClose(self):
self.destroy()
print("程序已退出...")
sys.exit()
def slotShowMsg(self, text):
self.OutputTextEdit.append(str(text))
class PaintArea(QWidget):
def __init__(self):
super(PaintArea, self).__init__()
self.setPalette(QPalette(Qt.white))
self.setAutoFillBackground(True)
self.setMinimumSize(350, 350)
def setShape(self, s):
self.shape = s
self.update()
def Init(self):
p = QtGui.QPainter()
p.begin(self)
for i in range(city_num):
x1 = distance_x[i]
y1 = distance_x[i]
p.setPen(QtCore.Qt.white)
r = 3
p.drawEllipse(x1-r, y1-r, 2*r, 2*r) #城市坐标处画圆,半径为r
p.end()
def drawPoints(self):
p = QtGui.QPainter()
p.begin(self)
for i in range(city_num):
x1 = distance_x[i]
y1 = distance_y[i]
p.setPen(QtCore.Qt.red)
r = 3
p.drawEllipse(x1-r, y1-r, 2*r, 2*r)
p.end()
def drawLines(self):
p = QtGui.QPainter()
p.begin(self)
for i in range(city_num):
x1 = distance_x[i]
y1 = distance_y[i]
if i != city_num - 1:
x2 = distance_x[i+1]
y2 = distance_y[i+1]
else:
x2 = distance_x[0]
y2 = distance_y[0]
p.setPen(QtCore.Qt.red)
r = 3
p.drawEllipse(x1-r, y1-r, 2*r, 2*r)
p.setPen(QtCore.Qt.blue)
p.drawLine(x1, y1, x2, y2)
p.end()
def paintEvent(self, QPaintEvent):
if self.shape == "Init":
self.Init()
if self.shape == "LoadMap":
self.drawPoints()
if self.shape == "Lines":
self.drawLines()
elif self.shape == "Points":
self.drawPoints()
def run(get_cityMatrix):
print(u"""
--------------------------------------------------------
程序:Hopfield神经网络解决TSP问题程序
作者:柴培林
日期:2017-11-29
语言:Python 3.6.2
--------------------------------------------------------
""")
global city_matrix, city_num, distance_x, distance_y
city_matrix = get_cityMatrix
city_num, distance_x, distance_y = arrayTwoToOne(get_cityMatrix)
app = QApplication(sys.argv)
form = StockDialog()
form.show()
app.exec_()
if __name__ == '__main__':
# 城市坐标
# city_address = [(25, 120), (240, 55), (330, 50), (295, 275), (100, 35), (90, 290), (245, 110), (295, 165)]
city_address = CreateCity(8)
run(city_address)