arc_arc_int.rar_python Tree T

#!/usr/bin/env python import Tix,math,tkFont class Punkt: def __init__(self,x=0,y=0): self.x=x self.y=y def text(self): return "[%9.4f,%9.4f]"%(self.x,self.y) class Appn(Tix.Frame): def in_range_angle(self,sw,ew,w): if w<0: w+=360 if sw <= w <= ew: return True sw,ew=sw-360,ew-360 if sw <= w <= ew: return True return False def search_int(self,x1,y1,r1,sw1,ew1,x2,y2,r2,sw2,ew2): distsq = float(( x1 - x2 ) * ( x1 - x2 ) + ( y1 - y2 ) * ( y1 - y2 )) sc1 = ( distsq - ( r2 * r2 - r1 * r1 ) ) / distsq if not distsq: return [] root = float(2*( r1**2 + r2**2 ) * distsq - distsq**2 - ( r1 - r2 )**2 * ( r1 + r2 )**2) sc1 = ( distsq - ( r2 * r2 - r1 * r1 ) ) / distsq ret=[] sqd=math.sqrt(distsq) if sqd==(r1+r2) or sqd==abs(r1-r2): x=x1+sc1*(x2-x1)/2 y=y1+sc1*(y2-y1)/2 if self.in_range_angle(sw1,ew1,math.atan2(y1-y,x-x1)) or \ self.in_range_angle(sw2,ew2,math.atan2(y-y2,x-x2)): ret.append([x,y]) elif sqd<(r1+r2) and sqd>abs(r1-r2): sc2=math.sqrt(root)/distsq x=x1+sc1*(x2-x1)/2-sc2*(y2-y1)/2 y=y1+sc1*(y2-y1)/2+sc2*(x2-x1)/2 if self.in_range_angle(sw1,ew1,math.degrees(math.atan2(y1-y,x-x1))) and \ self.in_range_angle(sw2,ew2,math.degrees(math.atan2(y2-y,x-x2))): ret.append([x,y]) x=x1+sc1*(x2-x1)/2+sc2*(y2-y1)/2 y=y1+sc1*(y2-y1)/2-sc2*(x2-x1)/2 if self.in_range_angle(sw1,ew1,math.degrees(math.atan2(y1-y,x-x1))) and \ self.in_range_angle(sw2,ew2,math.degrees(math.atan2(y2-y,x-x2))): ret.append([x,y]) return ret def PushPop(self, event, v, b): self.move[v]=b def MouseMove(self, event): if self.move[0]: n=self.c.coords('arc1') mx=n[0]+75;my=n[1]+75 w=math.atan2(event.y-my,event.x-mx) newposy=math.sin(w)*75+my newposx=math.cos(w)*75+mx self.c.coords('a11',newposx-4,newposy-4,newposx+4,newposy+4) self.c.itemconfig('arc1',start=-math.degrees(w)) w2=w-math.radians(float(self.c.itemcget('arc1','extent'))) newposy=math.sin(w2)*75+my newposx=math.cos(w2)*75+mx self.c.coords('a12',newposx-4,newposy-4,newposx+4,newposy+4) if self.move[1]: n=self.c.coords('arc1') mx=n[0]+75;my=n[1]+75 w=math.atan2(event.y-my,event.x-mx) newposy=math.sin(w)*75+my newposx=math.cos(w)*75+mx self.c.coords('a12',newposx-4,newposy-4,newposx+4,newposy+4) w=360-(float(self.c.itemcget('arc1','start'))-math.degrees(-w))%360 self.c.itemconfig('arc1',extent=w) if self.move[2]: n=self.c.coords('arc2') mx=n[0]+100;my=n[1]+100 w=math.atan2(event.y-my,event.x-mx) newposy=math.sin(w)*100+my newposx=math.cos(w)*100+mx self.c.coords('a21',newposx-4,newposy-4,newposx+4,newposy+4) self.c.itemconfig('arc2',start=-math.degrees(w)) w2=w-math.radians(float(self.c.itemcget('arc2','extent'))) newposy=math.sin(w2)*100+my newposx=math.cos(w2)*100+mx self.c.coords('a22',newposx-4,newposy-4,newposx+4,newposy+4) if self.move[3]: n=self.c.coords('arc2') mx=n[0]+100;my=n[1]+100 w=math.atan2(event.y-my,event.x-mx) newposy=math.sin(w)*100+my newposx=math.cos(w)*100+mx self.c.coords('a22',newposx-4,newposy-4,newposx+4,newposy+4) w=360-(float(self.c.itemcget('arc2','start'))-math.degrees(-w))%360 self.c.itemconfig('arc2',extent=w) if self.move[4]: nx=event.x;ny=event.y m=self.c.coords('mi1') p1=self.c.coords('a11') p2=self.c.coords('a12') w=math.radians(float(self.c.itemcget('arc1','start'))) w1=w-math.radians(float(self.c.itemcget('arc1','extent'))) p1x=p1[0]-m[0]+nx p1y=p1[1]-m[1]+ny p2x=p2[0]-m[0]+nx p2y=p2[1]-m[1]+ny self.c.coords('arc1',nx-75,ny-75,nx+75,ny+75) self.c.coords('mi1',nx-4,ny-4,nx+4,ny+4) self.c.coords('a11',p1x-4,p1y-4,p1x+4,p1y+4) self.c.coords('a12',p2x-4,p2y-4,p2x+4,p2y+4) if self.move[5]: nx=event.x;ny=event.y m=self.c.coords('mi2') p1=self.c.coords('a21') p2=self.c.coords('a22') w=math.radians(float(self.c.itemcget('arc2','start'))) w1=w-math.radians(float(self.c.itemcget('arc2','extent'))) p1x=p1[0]-m[0]+nx p1y=p1[1]-m[1]+ny p2x=p2[0]-m[0]+nx p2y=p2[1]-m[1]+ny self.c.coords('arc2',nx-100,ny-100,nx+100,ny+100) self.c.coords('mi2',nx-4,ny-4,nx+4,ny+4) self.c.coords('a21',p1x-4,p1y-4,p1x+4,p1y+4) self.c.coords('a22',p2x-4,p2y-4,p2x+4,p2y+4) sw1=float(self.c.itemcget('arc1','start')) ew1=sw1+float(self.c.itemcget('arc1','extent')) sw2=float(self.c.itemcget('arc2','start')) ew2=sw2+float(self.c.itemcget('arc2','extent')) n=self.c.coords('arc1') n2=self.c.coords('arc2') w=self.search_int(n[0]+75,n[1]+75,75,sw1,ew1,n2[0]+100,n2[1]+100,100,sw2,ew2) if len(w)==1: self.c.itemconfig('c1',state=Tix.NORMAL) self.c.coords('c1',w[0][0]-4,w[0][1]-4,w[0][0]+4,w[0][1]+4) self.c.itemconfig('c2',state=Tix.HIDDEN) elif len(w)==2: self.c.itemconfig('c1',state=Tix.NORMAL) self.c.coords('c1',w[0][0]-4,w[0][1]-4,w[0][0]+4,w[0][1]+4) self.c.itemconfig('c2',state=Tix.NORMAL) self.c.coords('c2',w[1][0]-4,w[1][1]-4,w[1][0]+4,w[1][1]+4) else: self.c.itemconfig('c1',state=Tix.HIDDEN) self.c.itemconfig('c2',state=Tix.HIDDEN) def __init__(self,master=None): Tix.Frame.__init__(self,master) self.pack() self.c=Tix.Canvas(width=400,height=400,bg="white") self.c.create_arc(80,125,230,275,tag='arc1',style=Tix.ARC,start=90,extent=180) self.c.create_arc(160,100,360,300,tag='arc2',style=Tix.ARC,start=90,extent=180) self.c.create_oval(155-4,125-4,155+4,125+4,fill="green",tag="a11") self.c.create_oval(155-4,275-4,155+4,275+4,fill="green",tag="a12") self.c.create_oval(155-4,200-4,155+4,200+4,fill="cyan",tag="mi1") self.c.create_oval(260-4,200-4,260+4,200+4,fill="cyan",tag="mi2") self.c.create_oval(260-4,100-4,260+4,100+4,fill="yellow",tag="a21") self.c.create_oval(260-4,300-4,260+4,300+4,fill="yellow",tag="a22") self.c.create_oval(299-4,101-4,299+4,101+4,fill="red",tag="c1",state=Tix.HIDDEN) self.c.create_oval(210-4,200-4,210+4,200+4,fill="red",tag="c2",state=Tix.HIDDEN) self.c.tag_bind('a11', '<ButtonRelease-1>', lambda e,s=self:s.PushPop(e,0,False)) self.c.tag_bind('a11', '<Button-1>', lambda e,s=self:s.PushPop(e,0,True)) self.c.bind("<Motion>",self.MouseMove) self.c.tag_bind('a12', '<ButtonRelease-1>', lambda e,s=self:s.PushPop(e,1,False)) self.c.tag_bind('a12', '<Button-1>', lambda e,s=self:s.PushPop(e,1,True)) self.c.tag_bind('a21', '<ButtonRelease-1>', lambda e,s=self:s.PushPop(e,2,False)) self.c.tag_bind('a21', '<Button-1>', lambda e,s=self:s.PushPop(e,2,True)) self.c.tag_bind('a22', '<ButtonRelease-1>', lambda e,s=self:s.PushPop(e,3,False)) self.c.tag_bind('a22', '<Button-1>', lambda e,s=self:s.PushPop(e,3,True)) self.c.tag_bind('mi1', '<ButtonRelease-1>', lambda e,s=self:s.PushPop(e,4,False)) self.c.tag_bind('mi1', '<Button-1>', lambda e,s=self:s.PushPop(e,4,True)) self.c.tag_bind('mi2', '<ButtonRelease-1>', lambda e,s=self:s.PushPop(e,5,False)) self.c.tag_bind('mi2', '<Button-1>', lambda e,s=self:s.PushPop(e,5,True)) self.c.pack() self.move=[False,False,False,False,False,False] root=Tix.Tk() app=Appn(master=root) app.master.title("TEST") app.mainloop()