武汉理工大学物流系统建模与仿真课件第七章 仿真软件使用与建模方法实践.pptVIP

Usage: path.occupied; path[integer].occupied; path[integer1,integer2].occupied; The method occupied returns if the object designated by path contains at least one MU in whole or in part (true) or not (false). The return value is of type boolean. Example: if not SingleProc.occupied then??? @.move(SingleProc); end; Occupied: For objects with more than one station, such as the ParallelProc, you can use the method occupied to find out if a specific station contains MUs (true) or not (false). The argument integer1 is the x-coordinate, the argument integer2 the y-coordinate. Example: is??? x, y : integer; do -- search for an unoccupied station on the ParallelProc and place the MU for x := 1 to ParallelProc.xDim loop ? for y := 1 to ParallelProc.yDim loop if not ParallelProc[x,y].occupied then @.move(ParallelProc[x,y]);?????????????return;??-- exits the method??????????end;??????next;???next;end; Usage: path.numMU; The method numMu returns the number of MUs booked on the object designated by path. Note that on length-oriented objects MUs may only be partially located on the object. In this case they will only be counted if their booking point is actually located on the object. The return value is of type integer. Example:print ParallelProc.numMU; NumMu: Usage: @.move; @.move(target_object); @.move(integer); Example: is??? i : integer; do -- checks all successors??? for i := 1 to @.location.numSucc loop??????? if @.move(i) then??-- if the moving action was successful??????????? return;?????? ?end;??? next;??? print None of the successors is ready.;end; Move: Example: is do ???waituntil MU_place.occupied prio 1; ???MU_place.cont.move (@); end; ? Waituntil: Usage: z_uniform(s,start,stop); ? Z_Uniform: Usage: path.EntranceLocked; The attribute EntranceLocked locks (true) or unlocks (false) the entrance of the object designated by path, so no MU can enter. Plant Sim