Exemplo n.º 1
0
 def UpdateVertexTheta(self,s, sPrime, queue, goal):
     val=self.graph.getVertex(sPrime)
     parentS=int(self.parentTheta[s])
     parentSVal=self.graph.getVertex(parentS)
 
     #print "UpdateVertex: " + str(s) + " " + str(sPrime) + " " + str(self.parentTheta[s])
     if( self.lineOfSight( self.parentTheta[s], sPrime,self.obstacles) ==True):
         # Path 2
         if((self.pathCostT[parentS]+functions.getDistance(parentSVal[0], parentSVal[1], val[0], val[1])) < self.pathCostT[sPrime]):
             self.pathCostT[sPrime] = self.pathCostT[parentS]+functions.getDistance(parentSVal[0], parentSVal[1], val[0], val[1])
             self.parentTheta[sPrime] = self.parentTheta[s]
             #print str(self.parentTheta[sPrime]) + " " + str(sPrime)
         
             #  insert into open list
             checkVertex=self.graph.getVertex(sPrime)
             if(checkVertex[3]==1):
                 cpyQueue=queue
                 queue=functions.removeFromHeap(cpyQueue, sPrime)
             distance=functions.getDistanceToGoal(val[0],val[1], goal)
             queue.push([self.pathCostT[sPrime]+distance,self.pathCostT[sPrime], sPrime, True])
         
             #mark it, and give it f, g, h values
             VertexInfo=self.graph.getVertex(sPrime)
             VertexInfo[3]=1
             VertexInfo[7]=self.pathCostT[sPrime]
             VertexInfo[8]=distance
             VertexInfo[9]=self.pathCostT[sPrime]+distance
             self.graph.setVertex(sPrime, VertexInfo)
 
     else:
         # Path 1
         sVal=self.graph.getVertex(s)
         if( ( self.pathCostT[s]+functions.getDistance(sVal[0], sVal[1], val[0], val[1])) < self.pathCostT[sPrime] ):
             self.pathCostT[sPrime] = self.pathCostT[s]+functions.getDistance(sVal[0], sVal[1], val[0], val[1])
             self.parentTheta[sPrime] =s
             #print str(self.parentTheta[sPrime]) + " " + str(sPrime)
         
             #  insert into open list
             checkVertex=self.graph.getVertex(sPrime)
             if(checkVertex[3]==1):
                 cpyQueue=queue
                 queue=functions.removeFromHeap(cpyQueue, sPrime)
             distance=functions.getDistanceToGoal(val[0],val[1], goal)
             queue.push([self.pathCostT[sPrime]+distance,self.pathCostT[sPrime], sPrime, True])
         
             #mark vertex, and assign f,g, h
             VertexInfo=self.graph.getVertex(sPrime)
             VertexInfo[3]=1
             VertexInfo[7]=self.pathCostT[sPrime] #g
             VertexInfo[8]=distance #h
             VertexInfo[9]=self.pathCostT[sPrime]+distance
             self.graph.setVertex(sPrime, VertexInfo)
     return queue
Exemplo n.º 2
0
 def UpdateVertex(self,s, sPrime, queue,goal):
     val=self.graph.getVertex(sPrime)
     if((self.pathCost[s]+self.graph.getEdge(s, sPrime))<self.pathCost[sPrime]):
         self.pathCost[sPrime]=self.pathCost[s]+self.graph.getEdge(s, sPrime)
         self.parent[sPrime]=s
         
         #remove from queue
         cpyQueue=queue
         queue=functions.removeFromHeap(cpyQueue, sPrime)
         distance=functions.getDistanceToGoal(val[0],val[1], goal)
         queue.push([self.pathCost[sPrime]+distance,self.pathCost[sPrime], sPrime, True])
         VertexInfo=self.graph.getVertex(sPrime)
         VertexInfo[3]=1
         VertexInfo[4]=self.pathCost[sPrime]
         VertexInfo[5]=distance
         VertexInfo[6]=self.pathCost[sPrime]+distance
         self.graph.setVertex(sPrime, VertexInfo)
     
     #print "cost of: " + str(sPrime) + " " + str(self.pathCost[sPrime]+getDistanceToGoal(val[0],val[1]))
     return queue