class App:
def __init__(self, master):
self.dim = 500
#init vars
self.got_edge = 0
#self.move_line = 0
#self.move_oval = 0
self.anistack = deque()
self.moveanistack = deque()
# create paining area
self.canv = Canvas(root, width = self.dim, height = self.dim)
self.canv.bind("<Button-1>", self.clicked)
self.canv.bind("<B1-Motion>", self.moved)
self.canv.bind("<ButtonRelease-1>", self.released)
self.canv.pack()
self.tri = Triangle([50,70],[300,300],[400,100])
self.tri.id = self.canv.create_polygon(self.tri.coo,fill='yellow')
frame = Frame(master)
frame.pack()
self.button = Button(frame, text="QUIT", fg="red", command=frame.quit)
self.button.pack(side=LEFT)
self.hi_there = Button(frame, text="Reset", command=self.reset)
self.hi_there.pack(side=LEFT)
def reset(self):
print "reset isn't yet implemented, please just restart :)"
def clicked(self, event) :
#global xo, yo, got_edge, move_line, move_oval
tol = 40 #egde snap tolerance, in sqrt(tol) = radius
r = 6 #radius of moving animation
#init vars and shortcut
self.xo = xo = event.x
self.yo = yo = event.y
self.p = array([xo,yo])
self.got_edge = 0
tri = self.tri.coo
for i in range(3):
if (xo-tri[i][0])*(xo-tri[i][0])+(yo-tri[i][1])*(yo-tri[i][1]) < tol:
self.got_edge = i+1
#print 'got edge',i
# if not clicking on a edge
if self.got_edge == 0:
isInSide=self.tri.isIn(xo,yo) # collision detection
self.ani(xo,yo,isInSide)
#move_line = self.canv.create_line(xo, yo, xo, yo)
#move_oval = self.canv.create_oval(xo - r, yo - r, xo + r, yo + r)
#self.moveanistack.append([move_line, move_oval])
#this is the simplified crossp
def cp(self,x,y):
return x[0]*y[1]-x[1]*y[0] #collision detection
# collision detection moved to triangle class, as for each object different...
# def colDet(self,xo,yo):
# basic idea: take crossproduct(AP, AC) and crossp(AB, AP)
# if they have the same sign, p is inside a cone
# do the same with (BP, BA) and (BC, BP)
# crossp(A,B) in 2d is simply: Ax*By-Ay*Bx
# x,y have same sign <=> x*y>0 use div because of overflowss occuring
#create some shortcuts
# A=array(self.tri.a)
# B=array(self.tri.b)
# C=array(self.tri.c)
# P=array(self.p)
#print self.tri.a, B, C, P
#print type(self.tri.a), type(B), type(C), type(P)
# if self.cp(P-A,C-A)//self.cp(B-A,P-A)>=0:
# if self.cp(P-B,A-B)//self.cp(C-B,P-B)>=0:
# return True
# return False
def moved(self, event) :
# coordinates moved to
x = event.x
y = event.y
if self.got_edge == 0:pass
#while len(self.moveanistack)>1:
# ml, mo = self.moveanistack.popleft()
# self.canv.delete(ml)
# self.canv.delete(mo)
#ml, mo = self.moveanistack.pop()
#self.canv.coords(ml,xo,yo,x,y)
#self.canv.coords(mo,x - 6, y - 6, x + 6, y + 6)
else:
self.tri.set_coo([[x,y],self.got_edge-1])
self.canv.delete(self.tri.id)
#print '-------------\n',self.tri.coo
area = self.tri.getArea()
area = area*255//(self.dim*self.dim)
if area>255:area=255
#print '-------------\n',area
color = "#%02x%02x%02x" % (255, 255-area, 0)
self.tri.id = self.canv.create_polygon(self.tri.get_c(),fill=color)
self.canv.update()
def released(self, event):
#if self.got_edge == 0:
# while len(self.moveanistack)>0:
# ml, mo = self.moveanistack.popleft()
# self.canv.delete(ml)
# self.canv.delete(mo)
self.got_edge = 0
def ani(self,x,y,isOn):
#clean up the stack, delete all remaining animation artifacts
while len(self.anistack) > 0:
self.canv.delete(self.anistack.popleft())
if isOn: color="green"
else: color = "red"
f = 1 # size factor
for i in range(50,0,-1):
ani = self.canv.create_oval(x - f*i, y - f*i, x + f*i, y + f*i)
self.anistack.append(ani)
self.canv.itemconfigure(ani,fill=color)
self.canv.update()
self.canv.after(5)
if len(self.anistack)>0:
self.canv.delete(self.anistack.pop())
class App:
def __init__(self, master):
self.dim = 500
#init vars
self.got_edge = 0
#self.move_line = 0
#self.move_oval = 0
self.anistack = deque()
self.moveanistack = deque()
# create paining area
self.canv = Canvas(root, width=self.dim, height=self.dim)
self.canv.bind("<Button-1>", self.clicked)
self.canv.bind("<B1-Motion>", self.moved)
self.canv.bind("<ButtonRelease-1>", self.released)
self.canv.pack()
self.tri = Triangle([50, 70], [300, 300], [400, 100])
self.tri.id = self.canv.create_polygon(self.tri.coo, fill='yellow')
frame = Frame(master)
frame.pack()
self.button = Button(frame, text="QUIT", fg="red", command=frame.quit)
self.button.pack(side=LEFT)
self.hi_there = Button(frame, text="Reset", command=self.reset)
self.hi_there.pack(side=LEFT)
def reset(self):
print "reset isn't yet implemented, please just restart :)"
def clicked(self, event):
#global xo, yo, got_edge, move_line, move_oval
tol = 40 #egde snap tolerance, in sqrt(tol) = radius
r = 6 #radius of moving animation
#init vars and shortcut
self.xo = xo = event.x
self.yo = yo = event.y
self.p = array([xo, yo])
self.got_edge = 0
tri = self.tri.coo
for i in range(3):
if (xo - tri[i][0]) * (xo - tri[i][0]) + (yo - tri[i][1]) * (
yo - tri[i][1]) < tol:
self.got_edge = i + 1
#print 'got edge',i
# if not clicking on a edge
if self.got_edge == 0:
isInSide = self.tri.isIn(xo, yo) # collision detection
self.ani(xo, yo, isInSide)
#move_line = self.canv.create_line(xo, yo, xo, yo)
#move_oval = self.canv.create_oval(xo - r, yo - r, xo + r, yo + r)
#self.moveanistack.append([move_line, move_oval])
#this is the simplified crossp
def cp(self, x, y):
return x[0] * y[1] - x[1] * y[0] #collision detection
# collision detection moved to triangle class, as for each object different...
# def colDet(self,xo,yo):
# basic idea: take crossproduct(AP, AC) and crossp(AB, AP)
# if they have the same sign, p is inside a cone
# do the same with (BP, BA) and (BC, BP)
# crossp(A,B) in 2d is simply: Ax*By-Ay*Bx
# x,y have same sign <=> x*y>0 use div because of overflowss occuring
#create some shortcuts
# A=array(self.tri.a)
# B=array(self.tri.b)
# C=array(self.tri.c)
# P=array(self.p)
#print self.tri.a, B, C, P
#print type(self.tri.a), type(B), type(C), type(P)
# if self.cp(P-A,C-A)//self.cp(B-A,P-A)>=0:
# if self.cp(P-B,A-B)//self.cp(C-B,P-B)>=0:
# return True
# return False
def moved(self, event):
# coordinates moved to
x = event.x
y = event.y
if self.got_edge == 0:
pass
#while len(self.moveanistack)>1:
# ml, mo = self.moveanistack.popleft()
# self.canv.delete(ml)
# self.canv.delete(mo)
#ml, mo = self.moveanistack.pop()
#self.canv.coords(ml,xo,yo,x,y)
#self.canv.coords(mo,x - 6, y - 6, x + 6, y + 6)
else:
self.tri.set_coo([[x, y], self.got_edge - 1])
self.canv.delete(self.tri.id)
#print '-------------\n',self.tri.coo
area = self.tri.getArea()
area = area * 255 // (self.dim * self.dim)
if area > 255: area = 255
#print '-------------\n',area
color = "#%02x%02x%02x" % (255, 255 - area, 0)
self.tri.id = self.canv.create_polygon(self.tri.get_c(),
fill=color)
self.canv.update()
def released(self, event):
#if self.got_edge == 0:
# while len(self.moveanistack)>0:
# ml, mo = self.moveanistack.popleft()
# self.canv.delete(ml)
# self.canv.delete(mo)
self.got_edge = 0
def ani(self, x, y, isOn):
#clean up the stack, delete all remaining animation artifacts
while len(self.anistack) > 0:
self.canv.delete(self.anistack.popleft())
if isOn: color = "green"
else: color = "red"
f = 1 # size factor
for i in range(50, 0, -1):
ani = self.canv.create_oval(x - f * i, y - f * i, x + f * i,
y + f * i)
self.anistack.append(ani)
self.canv.itemconfigure(ani, fill=color)
self.canv.update()
self.canv.after(5)
if len(self.anistack) > 0:
self.canv.delete(self.anistack.pop())
