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
