/
main.py
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/
main.py
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# -*- coding: utf-8 -*-
from math import *
from variabledirection import *
f = lambda t,x,y: 2*t*x**4*(y+3)**3-12*x*x*t*t*(y+3)**3-6*(y+3)*x**4*t*t
phi = lambda x,y: 0
psi1 = lambda t,y: 0
psi2 = lambda t,y: t*t*(y+3)**3
psi3 = lambda t,x: 27*x**4*t*t
psi4 = lambda t,x: 64*x**4*t*t
################################
M = 50
K = 50
N = 1000
t0 = 0
T = 1
x0 = 0
X = 1
y0 = 0
Y = 1
tau=(T-t0)/float(N)
h1=(X-x0)/float(M)
h2=(Y-y0)/float(K)
Min = -0.05
Max = 65.0
import sys
from math import log
from PyQt4.Qt import QApplication, QCoreApplication, QString, QPushButton, QVBoxLayout, QHBoxLayout, QWidget, QSlider, QLabel, QSizePolicy, QSpacerItem, SIGNAL, QObject, QProgressBar, QTimer, QImage, QPainter, QScrollArea, QColor, QPushButton, QFileDialog
import threading
class mythread(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self.Images = []
def run(self):
self.exit = False
global psi1, psi2, psi3, psi4, M, N, x0, X, y0, Y, t0, T, n, f, phi
global Max, Min
U0 = []
global K
for k in xrange(K+1):
U0.append([phi(x0+m*h1,y0+k*h2) for m in xrange(M+1)])
#self.MU.append(U0)
img = QImage(M+1,K+1,QImage.Format_RGB32)
c = QColor()
U = U0
for i in xrange(len(U)):
for j in xrange(len(U[0])):
c.setHsvF(0.833333333*(1.0-(U[i][j]-Min)/(Max-Min)),1,1)
img.setPixel(i,j,c.rgb())
self.Images.append(img)
global u,tau
for n in xrange(N+1):
U = vardir(f, U0, psi1, psi2, psi3, psi4, M, K, N, x0, X, y0, Y, t0, T, n)
#U=[]
#for k in xrange(K+1):
# U.append([u(t0+n*tau,x0+m*h1,y0+k*h2) for m in xrange(M+1)])
U0 = []
for k in xrange(K+1):
U0.append(U[k])
#self.MU.append(U0)
#print (n/float(N)*100)
img = QImage(M+1,K+1,QImage.Format_RGB32)
c = QColor()
for i in xrange(len(U)):
for j in xrange(len(U[0])):
#print U[i][j]
fl = min(max(0, 0.833333333*(1.0-(U[i][j]-Min)/(Max-Min))), 1)
c.setHsvF(fl,1,1)
img.setPixel(i,j,c.rgb())
self.Images.append(img)
self.progr = (int(n/float(N)*100))
if(self.exit):
break
class Plot(QWidget):
def __init__(self, pbar, *args):
QWidget.__init__(self, *args)
self.pbar = pbar
global K,M, x0, X, y0, Y
self.mt = mythread()
self.mt.progr = 0
self.mt.MU = []
self.mt.start()
self.layer = 0
while(len(self.mt.Images) < 1):
pass
self.image = self.mt.Images[0]
self.repaint()
def Update(self, layer):
if(self.mt.isAlive() and len(self.mt.Images) <= layer):
layer = len(self.mt.Images)-1
self.slider.setValue(layer)
self.layer = layer
global t0, tau
self.label.setText('t='+str(t0+layer*tau))
self.image = self.mt.Images[layer]
self.repaint()
def paintEvent(self, e):
p = QPainter()
p.begin(self)
p.drawImage(0,0,self.image)
p.end()
def timerEvent(self):
if(self.mt.isAlive()):
self.pbar.setValue(self.mt.progr)
else:
self.timer.stop()
self.pbar.setValue(100)
def onClose(self):
self.mt.exit = True
def Save(self):
d = QFileDialog(self)
s = d.getSaveFileName()
l = len(self.mt.Images)
for i in xrange(l):
self.mt.Images[i].save(s+'.'+str(i)+'.png')
f = open(s,"w")
f.write(str(l))
f.close()
def Open(self):
d = QFileDialog(self)
s = d.getOpenFileName()
self.mt.exit = True
f = open(s,"r")
l = int(f.readline())
f.close()
self.mt.Images = []
for i in xrange(l):
self.mt.Images.append(QImage(s+'.'+str(i)+'.png'))
def main(args):
app = QApplication(args)
w = QWidget()
mainLayout2 = QVBoxLayout()
mainLayout = QHBoxLayout()
mainLayout2.addLayout(mainLayout)
pbar = QProgressBar()
pbar.setOrientation(2)
pbar.setValue(0)
p = Plot(pbar)
mainLayout.addWidget(p)
slider = QSlider(w)
slider.setMinimum(int(t0*N))
slider.setMaximum(int(T*N))
p.slider = slider
mainLayout.addWidget(slider)
Layout2 = QVBoxLayout()
Label1 = QLabel('T='+str(T), w)
Label2 = QLabel('t='+str(t0+slider.value()*tau), w)
Label2.setFixedWidth(50)
Label3 = QLabel('t0='+str(t0), w)
Layout2.addWidget(Label1)
Layout2.addItem( QSpacerItem(20, 40, QSizePolicy.Minimum, QSizePolicy.Expanding) )
Layout2.addWidget(Label2)
Layout2.addItem( QSpacerItem(20, 40, QSizePolicy.Minimum, QSizePolicy.Expanding) )
Layout2.addWidget(Label3)
mainLayout.addLayout(Layout2)
image = QImage()
mainLayout.addWidget(pbar)
p.label = Label2
p.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred));
w.show()
w.resize(600, 400)
timer = QTimer()
QObject.connect(slider, SIGNAL('valueChanged(int)'), p.Update)
QObject.connect(timer, SIGNAL('timeout()'), p.timerEvent)
QObject.connect(app, SIGNAL('lastWindowClosed()'), p.onClose)
timer.start(100)
p.timer = timer
blay= QHBoxLayout()
b1 = QPushButton("Save")
b2 = QPushButton("Open")
blay.addWidget(b1)
blay.addWidget(b2)
mainLayout2.addLayout(blay)
w.setLayout(mainLayout2)
QObject.connect(b1, SIGNAL('clicked()'), p.Save)
QObject.connect(b2, SIGNAL('clicked()'), p.Open)
app.exec_()
if __name__ == '__main__':
main(sys.argv)