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draw.py
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draw.py
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import turtle
import math
class Shape:
def __init__(self,t,name=""):
self.t=t
self.anchors=[]
self.heart=None
self.start=None
self.name=name
def move(self,x=0,y=0,heading=0):
self.t.setheading(heading)
self.t.penup()
self.t.goto(x,y)
self.t.pendown()
self.setpos()
def setpos(self,start=None):
pass
def heart2start(self,heart):
pass
def near_shape(self,other):
min=-1
ret =[]
for sourceanchor in self.anchors:
for targetanchor in other.anchors:
x = sourceanchor[0] - targetanchor[0]
y = sourceanchor[1] - targetanchor[1]
dis = x**2 + y**2
if min<0 or min > dis:
min = dis
ret=[Point(sourceanchor[0],sourceanchor[1]),Point(targetanchor[0],targetanchor[1])]
return ret
def draw_label(self):
t=self.t
self.move(self.start[0],self.start[1]+40)
t.write(self.name)
class Square(Shape):
def setpos(self,start=None):
if start != None:
pos=start
pos=self.t.pos()
self.heart=(pos[0]+20,pos[0]+20);
self.start=pos
def heart2start(self,heart):
return (heart[0]-20,heart[1]-20)
def draw(self):
self.setpos()
self.anchors=[]
for i in [90,90,90,90]:
self.t.forward(40)
self.t.left(i)
pos=self.t.pos()
angle=self.t.heading()-90
anchor=(pos[0]-20*math.cos(math.radians(angle)),pos[1]-20*math.sin(math.radians(angle)))
self.anchors.append(anchor)
self.draw_label()
class Diamond(Shape):
def heart2start(self,heart):
return (heart[0]-20,heart[1]-20)
def setpos(self,start=None):
if start != None:
pos=start
pos=self.t.pos()
self.heart=(pos[0]+20,pos[0]+20)
self.start=pos
def draw(self):
self.setpos()
self.t.penup()
self.t.sety(self.t.ycor()+20)
self.t.pendown()
self.anchors=[]
for i in [-45,90,90,90,90]:
self.t.left(i)
self.t.forward(40)
pos=self.t.pos()
self.anchors.append(pos)
self.draw_label()
class Line(Shape):
def __init__(self,t,name=""):
self.t=t
self.name=name
self.start=None
def move(self,x=0,y=0,heading=0):
self.t.setheading(heading)
self.t.penup()
self.t.goto(x,y)
self.t.pendown()
def draw_arrow(self):
pass
def setpos(self,start=None):
if start != None:
pos=start
pos=self.t.pos()
self.start=pos
def draw(self,start,end,heading=0):
self.move(start.x,start.y,heading)
self.t.goto(end.x,end.y)
self.start=(start.x,start.y)
self.draw_arrow(start,end)
self.draw_label(start,end)
def draw_label(self,start,end):
t=self.t
self.move((start.x+end.x)//2,(start.y+end.y)//2)
t.write(self.name)
class LineWithArrow(Line):
def draw_arrow(self,start,end):
t=self.t
x=end.x-start.x
y=end.y-start.y
de=math.degrees(math.atan(math.fabs(y/x)))
if x>0 and y<0:
de = 360-de
if x<0 and y>0:
de = 180-de
if x<0 and y<0:
de =180+de
t.seth(de)
heading = t.heading()
pos = t.pos()
array=[30,-30]
for i in array:
t.left(i)
t.backward(10)
self.move(pos[0],pos[1],heading)
class Point():
def __init__(self,x=0,y=0):
self.x=x
self.y=y
def __str__(self):
return "{0} {1}".format(self.x,self.y)
if __name__=="__main__":
tu = turtle.Turtle();
tu.speed(0)
tu.hideturtle()
s = Square(tu,"test")
t = Square(tu,"test")
s.draw()
for i in range(36):
i*=10
r=math.radians(i)
t.move(200*math.cos(r),200*math.sin(r));
t.draw()
ret=s.near_shape(t)
l = LineWithArrow(tu,"tststs")
l.draw(ret[0],ret[1])
t.move()
wn=turtle.Screen();
def quit():
wn.bye()
wn.onkey(quit,"q")
wn.listen()
wn.mainloop()