def getAngleFromLongestEdge(self, areaPoly=None, origin=None): """ finds the angle of the longest edge in relation to the x-axis. if there is a draw, the edge closest to the origin wins. This function is only usable for konvex polygons, but works for concave as well. the square distance is used since it's faster to compute the shift thing only works if the origin is in the "lower left" corner. """ if not origin: origin=self.origin if not areaPoly: areaPoly=self.areaPoly last=areaPoly[-1] longest=None dmax=0 for node in areaPoly: d2=fun.getDistanceSq(node, last) if d2==dmax: #look for distance to origin dtmp=min([fun.getDistanceSq(node, origin), fun.getDistanceSq(last, origin)]) dtmp2=min([fun.getDistanceSq(node, longest[0]), fun.getDistanceSq(last, longest[1])]) if dtmp<dtmp2: longest = (node,last) dmax=d2 elif d2>dmax: longest = (node,last) dmax=d2 last=node #now, calculate the distance to this line. #we need to make a line, not a ray, in order to get the extension as well. infRay=np.array(longest) infRay=infRay+1e5*(infRay-infRay[1])+1e5*(infRay-infRay[0]) #infinite extension of longest pTmp, t=col.closestLinePoint(origin, infRay, True) assert t!=1 and t!=0 d=fun.getDistance(pTmp,origin) assert d>=0 #now, we know that d+shift=n*L+C..where n is an integer n=round((d-self.C)/float(self.L)) shift=self.L*n+self.C-d assert abs(shift)<=self.L angle=fun.angleToXAxis(longest) assert angle>=0 if 0<angle<=pi/2: #shift x negative shift=(-shift,0) elif pi/2<angle<=pi: #shift y negative shift=(0,-shift) elif pi<angle<=3*pi/2.0: #shift x positive shift=(shift,0) else: shift=(0, -shift) return angle, shift
def run(self): tic=time.clock() rN=self.G.roadNet for e in rN.edges_iter(data=True): r=e[2]['r'] direction=r.direction tList=self.G.terrain.GetTrees(r.pos, self.reach+r.radius, onlyNonHarvested=True) ray=np.array(r.endPoints) for t in tList: p1, tval=col.closestLinePoint(t.pos, ray, additionalInfo=True) #tval will be used later, if col.collide(t, r): self.chop(t, p1, tval, r) #could get into problems if t is on ray... hmm.. elif t.marked and fn.getDistance(p1, t.pos)<=self.reach: #marked foo thinning self.chop(t, p1, tval, r) print "harvester routine took %.4f seconds"%(time.clock()-tic)
def run(self): """PEM""" #first, naive algorithm while True: best=self.find_next_road() #position is at origin at this point. 'best' is an nx edge instance. if not best: self.sim.stopSimulation() break nList=self.getRoute(best) #get there from origin, from a correct direction while len(nList)>0: pos=nList.pop() yield hold, self, self.setPos(pos) #so, we are now in position at the beginning of the road. self.pickup_road=best #we will harvest from this road during this loop road=self.pickup_road[2]['r'] wayHome=None #will later be a list of pos. This initialization enables pickups on way home. while len(road.harvestedTrees)>0: t=self.getClosestTree() if not t: break #no tree was found pos=col.closestLinePoint(t.pos, np.array(road.endPoints)) #road position of closest tree. yield (hold, self, self.setPos(pos)) #move to point closest to t. cmd=self.pickup() #pickup all trees at current position for c in cmd: if c != False: yield c brokeOut=False if False in cmd: break #full load. elif len(road.harvestedTrees)==0: #some room left, and road is out of trees.. if wayHome is None: wayHome=self.getRoute(self.origin)#get home again. while len(road.harvestedTrees)==0: yield hold, self, self.setPos(wayHome.pop()) #move. We shall now be at beginning of next road if len(wayHome)==0: brokeOut=True #enables "double break" break self.nextPos=wayHome[-1] #other end of road self.pickup_road=(tuple(self.pos),tuple(self.nextPos),self.roadNet.get_edge_data(tuple(self.pos), tuple(self.nextPos))) #and the winner of ugly coding is... road=self.pickup_road[2]['r'] if brokeOut: break #go back to origin, full cargo. if wayHome is None: wayHome=self.getRoute(self.origin)#get home again. while len(wayHome)>0: yield hold, self, self.setPos(wayHome.pop()) self.reset()
