def opt(gfile, offset=(0.0,0.0,0.0), rotate=False): '''Optimization core function: Reads in gCode ascii file. Processes gcode into toolpath list figures out milling. Reorders milling to get optimal Writes out to new file.''' start = datetime.now() puts(colored.blue('Optimizing file: %s\n Started: %s'%(gfile.name,datetime.now()))) # Parse the gcode from the ascii to a list of command numbers and location gcode = GCode(gfile) gcode.parse() # Take the list and make a toolpath out of it. A toolpath is a list of locations # where the bit needs to be moved / milled : [ [x,y,z,t], ...] tool = Tool(gcode) tool.offset(offset) tool.rotate(rotate) tool.groupMills() puts(colored.blue('Toolpath length: %.2f inches, (mill only: %.2f)'%(tool.length(),tool.millLength()))) if args.setMillHeight: tool.setMillHeight(Z_MILL,Z_SPOT) tool.uniqMills() # This starts the optimization process: # start at here, and go to the next path which is closest is the overall plan puts(colored.blue('Starting Optimization:')) here = [0.0]*3 # start at the origin newMills = [] # accumulate mills here k = 0 while len(tool.mills) > 0: # No Optimization # mill = tool.mills.pop(0) # Basic optimization, find the next closest one and use it. # mill = tool.getNextMill(here) # Advanced Optimization: Assumes that each mill path closed, so finds # the mill path which is close to the point and reorders it to be so mill = tool.getClosestMill(here) # you were here, now you are there # move mills and update location newMills.append(mill) here = newMills[-1][-1] k += 1 if (k%10) == 0: sys.stdout.write('.') sys.stdout.flush() tool.mills.extend(newMills) tool.reTool(Z_MOVE) tool.uniq() puts(colored.blue('Toolpath length: %.2f inches, (mill only: %.2f)'%(tool.length(),tool.millLength()))) # Save this with the _opt file ending. output = tool.buildGcode() outfile = FILEENDING.join(os.path.splitext(gfile.name)) puts(colored.green('Writing: %s'%outfile)) with open(outfile,'w') as f: f.write(output) # how long did this take? puts(colored.green('Time to completion: %s'%(deltaTime(start)))) print