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makerwelt_raster_mcl1000.py
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makerwelt_raster_mcl1000.py
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'''
# ----------------------------------------------------------------------------
# Maintained by Maker-Welt (https://github.com/guiEmotiv/inkscape-laser-cutter-engraver)
# Designed to run on Ramps 1.4 + Marlin firmware on a MCL1000.
# Based on raster2gcode.py gcode inkscape extension
# Based on a script by 305engineering
#
# Copyright (C) 2017 gsoto, guillermo.soto@utec.edu.pe
# based on raster2laser_gcode.py (C) 2014 305engineering...
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# ----------------------------------------------------------------------------
'''
import sys
import os
import re
sys.path.append('/usr/share/inkscape/extensions')
sys.path.append('/Applications/Inkscape.app/Contents/Resources/extensions')
import subprocess
import math
import inkex
import png
import array
class GcodeExport(inkex.Effect):
######## Richiamata da _main()
def __init__(self):
"""init the effetc library and get options from gui"""
inkex.Effect.__init__(self)
# Opzioni di esportazione dell'immagine
self.OptionParser.add_option("-d", "--directory", action="store", type="string", dest="directory",
default="/home/", help="Directory for files") ####check_dir
self.OptionParser.add_option("-f", "--filename", action="store", type="string", dest="filename", default="-1.0",
help="File name")
self.OptionParser.add_option("", "--add-numeric-suffix-to-filename", action="store", type="inkbool",
dest="add_numeric_suffix_to_filename", default=True,
help="Add numeric suffix to filename")
self.OptionParser.add_option("", "--bg_color", action="store", type="string", dest="bg_color", default="",
help="")
self.OptionParser.add_option("", "--resolution", action="store", type="int", dest="resolution", default="5",
help="") # Usare il valore su float(xy)/resolution e un case per i DPI dell export
# Come convertire in scala di grigi
self.OptionParser.add_option("", "--grayscale_type", action="store", type="int", dest="grayscale_type",
default="1", help="")
# Modalita di conversione in Bianco e Nero
self.OptionParser.add_option("", "--conversion_type", action="store", type="int", dest="conversion_type",
default="1", help="")
# Opzioni modalita
self.OptionParser.add_option("", "--BW_threshold", action="store", type="int", dest="BW_threshold",
default="128", help="")
self.OptionParser.add_option("", "--grayscale_resolution", action="store", type="int",
dest="grayscale_resolution", default="1", help="")
# Velocita Nero e spostamento
self.OptionParser.add_option("", "--speed_ON", action="store", type="int", dest="speed_ON", default="200",
help="")
# Mirror Y
self.OptionParser.add_option("", "--flip_y", action="store", type="inkbool", dest="flip_y", default=False,
help="")
# Homing
self.OptionParser.add_option("", "--homing", action="store", type="int", dest="homing", default="1", help="")
# Commands
self.OptionParser.add_option("", "--laseron", action="store", type="string", dest="laseron", default="M106",
help="")
self.OptionParser.add_option("", "--laseroff", action="store", type="string", dest="laseroff", default="M107",
help="")
# Anteprima = Solo immagine BN
self.OptionParser.add_option("", "--preview_only", action="store", type="inkbool", dest="preview_only",
default=False, help="")
# inkex.errormsg("BLA BLA BLA Messaggio da visualizzare") #DEBUG
######## Richiamata da __init__()
######## Qui si svolge tutto
def effect(self):
current_file = self.args[-1]
bg_color = self.options.bg_color
##Implementare check_dir
if (os.path.isdir(self.options.directory)) == True:
##CODICE SE ESISTE LA DIRECTORY
# inkex.errormsg("OK") #DEBUG
#Aggiungo un suffisso al nomefile per non sovrascrivere dei file
if self.options.add_numeric_suffix_to_filename :
dir_list = os.listdir(self.options.directory) #List di tutti i file nella directory di lavoro
temp_name = self.options.filename
max_n = 0
for s in dir_list :
r = re.match(r"^%s_0*(\d+)%s$"%(re.escape(temp_name),'original.png' ), s)
if r :
max_n = max(max_n,int(r.group(1)))
self.options.filename = temp_name + "_" + ( "0"*(4-len(str(max_n+1))) + str(max_n+1) )
#genero i percorsi file da usare
suffix = ""
if self.options.conversion_type == 1:
suffix = "_umbralFijoBN_" + str(self.options.BW_threshold) + "_"
elif self.options.conversion_type == 2:
suffix = "_umbralAleaBN_"
elif self.options.conversion_type == 3:
suffix = "_Semitonos_"
elif self.options.conversion_type == 4:
suffix = "_filaSemito_"
elif self.options.conversion_type == 5:
suffix = "_colSemito_"
else:
if self.options.grayscale_resolution == 1:
suffix = "_Gray_256_"
elif self.options.grayscale_resolution == 2:
suffix = "_Gray_128_"
elif self.options.grayscale_resolution == 4:
suffix = "_Gray_64_"
elif self.options.grayscale_resolution == 8:
suffix = "_Gray_32_"
elif self.options.grayscale_resolution == 16:
suffix = "_Gray_16_"
elif self.options.grayscale_resolution == 32:
suffix = "_Gray_8_"
else:
suffix = "_Gray_"
pos_file_png_exported = os.path.join(self.options.directory, self.options.filename + "original.png")
pos_file_png_BW = os.path.join(self.options.directory, self.options.filename + suffix + "generado.png")
pos_file_gcode = os.path.join(self.options.directory, self.options.filename + suffix + "gcode.gcode")
# Esporto l'immagine in PNG
self.exportPage(pos_file_png_exported, current_file, bg_color)
# DA FARE
# Manipolo l'immagine PNG per generare il file Gcode
self.PNGtoGcode(pos_file_png_exported, pos_file_png_BW, pos_file_gcode)
else:
inkex.errormsg("El directorio no exite! Porfavor especifique el correcto directorio!")
######## ESPORTA L IMMAGINE IN PNG
######## Richiamata da effect()
def exportPage(self, pos_file_png_exported, current_file, bg_color):
######## CREAZIONE DEL FILE PNG ########
# Crea l'immagine dentro la cartella indicata da "pos_file_png_exported"
# -d 127 = risoluzione 127DPI => 5 pixel/mm 1pixel = 0.2mm
###command="inkscape -C -e \"%s\" -b\"%s\" %s -d 127" % (pos_file_png_exported,bg_color,current_file)
if self.options.resolution == 1:
DPI = 25.4
elif self.options.resolution == 2:
DPI = 50.8
elif self.options.resolution == 5:
DPI = 127
elif self.options.resolution == 10:
DPI = 254
elif self.options.resolution == 20:
DPI = 508
else:
DPI = 1270
command = "inkscape -C -e \"%s\" -b\"%s\" %s -d %s" % (
pos_file_png_exported, bg_color, current_file, DPI) # Comando da linea di comando per esportare in PNG
p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
return_code = p.wait()
f = p.stdout
err = p.stderr
######## CREA IMMAGINE IN B/N E POI GENERA GCODE
######## Richiamata da effect()
def PNGtoGcode(self, pos_file_png_exported, pos_file_png_BW, pos_file_gcode):
######## GENERO IMMAGINE IN SCALA DI GRIGI ########
# Scorro l immagine e la faccio diventare una matrice composta da list
reader = png.Reader(pos_file_png_exported) # File PNG generato
w, h, pixels, metadata = reader.read_flat()
matrice = [[255 for i in range(w)] for j in range(h)] # List al posto di un array
# Scrivo una nuova immagine in Scala di grigio 8bit
# copia pixel per pixel
if self.options.grayscale_type == 1:
# 0.21R + 0.71G + 0.07B
for y in range(h): # y varia da 0 a h-1
for x in range(w): # x varia da 0 a w-1
pixel_position = (x + y * w) * 4 if metadata['alpha'] else (x + y * w) * 3
matrice[y][x] = int(pixels[pixel_position] * 0.21 + pixels[(pixel_position + 1)] * 0.71 + pixels[
(pixel_position + 2)] * 0.07)
elif self.options.grayscale_type == 2:
# (R+G+B)/3
for y in range(h): # y varia da 0 a h-1
for x in range(w): # x varia da 0 a w-1
pixel_position = (x + y * w) * 4 if metadata['alpha'] else (x + y * w) * 3
matrice[y][x] = int(
(pixels[pixel_position] + pixels[(pixel_position + 1)] + pixels[(pixel_position + 2)]) / 3)
elif self.options.grayscale_type == 3:
# R
for y in range(h): # y varia da 0 a h-1
for x in range(w): # x varia da 0 a w-1
pixel_position = (x + y * w) * 4 if metadata['alpha'] else (x + y * w) * 3
matrice[y][x] = int(pixels[pixel_position])
elif self.options.grayscale_type == 4:
# G
for y in range(h): # y varia da 0 a h-1
for x in range(w): # x varia da 0 a w-1
pixel_position = (x + y * w) * 4 if metadata['alpha'] else (x + y * w) * 3
matrice[y][x] = int(pixels[(pixel_position + 1)])
elif self.options.grayscale_type == 5:
# B
for y in range(h): # y varia da 0 a h-1
for x in range(w): # x varia da 0 a w-1
pixel_position = (x + y * w) * 4 if metadata['alpha'] else (x + y * w) * 3
matrice[y][x] = int(pixels[(pixel_position + 2)])
elif self.options.grayscale_type == 6:
# Max Color
for y in range(h): # y varia da 0 a h-1
for x in range(w): # x varia da 0 a w-1
pixel_position = (x + y * w) * 4 if metadata['alpha'] else (x + y * w) * 3
list_RGB = pixels[pixel_position], pixels[(pixel_position + 1)], pixels[(pixel_position + 2)]
matrice[y][x] = int(max(list_RGB))
else:
# Min Color
for y in range(h): # y varia da 0 a h-1
for x in range(w): # x varia da 0 a w-1
pixel_position = (x + y * w) * 4 if metadata['alpha'] else (x + y * w) * 3
list_RGB = pixels[pixel_position], pixels[(pixel_position + 1)], pixels[(pixel_position + 2)]
matrice[y][x] = int(min(list_RGB))
####Ora matrice contiene l'immagine in scala di grigi
######## GENERO IMMAGINE IN BIANCO E NERO ########
# Scorro matrice e genero matrice_BN
B = 255
N = 0
matrice_BN = [[255 for i in range(w)] for j in range(h)]
if self.options.conversion_type == 1:
# B/W fixed threshold
soglia = self.options.BW_threshold
for y in range(h):
for x in range(w):
if matrice[y][x] >= soglia:
matrice_BN[y][x] = B
else:
matrice_BN[y][x] = N
elif self.options.conversion_type == 2:
# B/W random threshold
from random import randint
for y in range(h):
for x in range(w):
soglia = randint(20, 235)
if matrice[y][x] >= soglia:
matrice_BN[y][x] = B
else:
matrice_BN[y][x] = N
elif self.options.conversion_type == 3:
# Halftone
Step1 = [[B, B, B, B, B], [B, B, B, B, B], [B, B, N, B, B], [B, B, B, B, B], [B, B, B, B, B]]
Step2 = [[B, B, B, B, B], [B, B, N, B, B], [B, N, N, N, B], [B, B, N, B, B], [B, B, B, B, B]]
Step3 = [[B, B, N, B, B], [B, N, N, N, B], [N, N, N, N, N], [B, N, N, N, B], [B, B, N, B, B]]
Step4 = [[B, N, N, N, B], [N, N, N, N, N], [N, N, N, N, N], [N, N, N, N, N], [B, N, N, N, B]]
for y in range(h / 5):
for x in range(w / 5):
media = 0
for y2 in range(5):
for x2 in range(5):
media += matrice[y * 5 + y2][x * 5 + x2]
media = media / 25
for y3 in range(5):
for x3 in range(5):
if media >= 250 and media <= 255:
matrice_BN[y * 5 + y3][x * 5 + x3] = B
if media >= 190 and media < 250:
matrice_BN[y * 5 + y3][x * 5 + x3] = Step1[y3][x3]
if media >= 130 and media < 190:
matrice_BN[y * 5 + y3][x * 5 + x3] = Step2[y3][x3]
if media >= 70 and media < 130:
matrice_BN[y * 5 + y3][x * 5 + x3] = Step3[y3][x3]
if media >= 10 and media < 70:
matrice_BN[y * 5 + y3][x * 5 + x3] = Step4[y3][x3]
if media >= 0 and media < 10:
matrice_BN[y * 5 + y3][x * 5 + x3] = N
elif self.options.conversion_type == 4:
# Halftone row
Step1r = [B, B, N, B, B]
Step2r = [B, N, N, B, B]
Step3r = [B, N, N, N, B]
Step4r = [N, N, N, N, B]
for y in range(h):
for x in range(w / 5):
media = 0
for x2 in range(5):
media += matrice[y][x * 5 + x2]
media = media / 5
for x3 in range(5):
if media >= 250 and media <= 255:
matrice_BN[y][x * 5 + x3] = B
if media >= 190 and media < 250:
matrice_BN[y][x * 5 + x3] = Step1r[x3]
if media >= 130 and media < 190:
matrice_BN[y][x * 5 + x3] = Step2r[x3]
if media >= 70 and media < 130:
matrice_BN[y][x * 5 + x3] = Step3r[x3]
if media >= 10 and media < 70:
matrice_BN[y][x * 5 + x3] = Step4r[x3]
if media >= 0 and media < 10:
matrice_BN[y][x * 5 + x3] = N
elif self.options.conversion_type == 5:
# Halftone column
Step1c = [B, B, N, B, B]
Step2c = [B, N, N, B, B]
Step3c = [B, N, N, N, B]
Step4c = [N, N, N, N, B]
for y in range(h / 5):
for x in range(w):
media = 0
for y2 in range(5):
media += matrice[y * 5 + y2][x]
media = media / 5
for y3 in range(5):
if media >= 250 and media <= 255:
matrice_BN[y * 5 + y3][x] = B
if media >= 190 and media < 250:
matrice_BN[y * 5 + y3][x] = Step1c[y3]
if media >= 130 and media < 190:
matrice_BN[y * 5 + y3][x] = Step2c[y3]
if media >= 70 and media < 130:
matrice_BN[y * 5 + y3][x] = Step3c[y3]
if media >= 10 and media < 70:
matrice_BN[y * 5 + y3][x] = Step4c[y3]
if media >= 0 and media < 10:
matrice_BN[y * 5 + y3][x] = N
else:
# Grayscale
if self.options.grayscale_resolution == 1:
matrice_BN = matrice
else:
for y in range(h):
for x in range(w):
if matrice[y][x] <= 1:
matrice_BN[y][x] == 0
if matrice[y][x] >= 254:
matrice_BN[y][x] == 255
if matrice[y][x] > 1 and matrice[y][x] < 254:
matrice_BN[y][x] = (matrice[y][
x] // self.options.grayscale_resolution) * self.options.grayscale_resolution
####Ora matrice_BN contiene l'immagine in Bianco (255) e Nero (0)
#### SALVO IMMAGINE IN BIANCO E NERO ####
file_img_BN = open(pos_file_png_BW, 'wb') # Creo il file
Costruttore_img = png.Writer(w, h, greyscale=True, bitdepth=8) # Impostazione del file immagine
Costruttore_img.write(file_img_BN, matrice_BN) # Costruttore del file immagine
file_img_BN.close() # Chiudo il file
#### GENERO IL FILE GCODE ####
if self.options.preview_only == False: # Genero Gcode solo se devo
if self.options.flip_y == False: # Inverto asse Y solo se flip_y = False
# -> coordinate Cartesiane (False) Coordinate "informatiche" (True)
matrice_BN.reverse()
Laser_ON = False
F_G01 = self.options.speed_ON
Scala = self.options.resolution
file_gcode = open(pos_file_gcode, 'w') # Creo il file
# Configurazioni iniziali standard Gcode
# HOMING
file_gcode.write('M117 Inicializando...!!\n')
file_gcode.write('G28\n')
file_gcode.write('G21\n')
file_gcode.write('G90\n')
file_gcode.write('G92\n')
file_gcode.write('M117 Listo para iniciar...\n')
file_gcode.write('M300 P1200 S150\n')
# Creazione del Gcode
# allargo la matrice per lavorare su tutta l'immagine
for y in range(h):
matrice_BN[y].append(B)
w = w + 1
if self.options.conversion_type != 6:
for y in range(h):
if y % 2 == 0:
for x in range(w):
if matrice_BN[y][x] == N:
if Laser_ON == False:
# file_gcode.write('G00 X' + str(float(x)/Scala) + ' Y' + str(float(y)/Scala) + ' F' + str(F_G00) + '\n')
file_gcode.write('G00 X' + str(float(x) / Scala) + ' Y' + str(
float(y) / Scala) + '\n') # tolto il Feed sul G00
file_gcode.write(self.options.laseron + '\n')
Laser_ON = True
if Laser_ON == True: # DEVO evitare di uscire dalla matrice
if x == w - 1:
file_gcode.write(
'G01 X' + str(float(x) / Scala) + ' Y' + str(float(y) / Scala) + ' F' + str(
F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
else:
if matrice_BN[y][x + 1] != N:
file_gcode.write('G01 X' + str(float(x) / Scala) + ' Y' + str(
float(y) / Scala) + ' F' + str(F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
else:
for x in reversed(range(w)):
if matrice_BN[y][x] == N:
if Laser_ON == False:
# file_gcode.write('G00 X' + str(float(x)/Scala) + ' Y' + str(float(y)/Scala) + ' F' + str(F_G00) + '\n')
file_gcode.write('G00 X' + str(float(x) / Scala) + ' Y' + str(
float(y) / Scala) + '\n') # tolto il Feed sul G00
file_gcode.write(self.options.laseron + '\n')
Laser_ON = True
if Laser_ON == True: # DEVO evitare di uscire dalla matrice
if x == 0:
file_gcode.write(
'G01 X' + str(float(x) / Scala) + ' Y' + str(float(y) / Scala) + ' F' + str(
F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
else:
if matrice_BN[y][x - 1] != N:
file_gcode.write('G01 X' + str(float(x) / Scala) + ' Y' + str(
float(y) / Scala) + ' F' + str(F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
else: ##SCALA DI GRIGI
for y in range(h):
if y % 2 == 0:
for x in range(w):
if matrice_BN[y][x] != B:
if Laser_ON == False:
file_gcode.write(
'G00 X' + str(float(x) / Scala) + ' Y' + str(float(y) / Scala) + '\n')
file_gcode.write(
self.options.laseron + ' ' + ' S' + str(255 - matrice_BN[y][x]) + '\n')
Laser_ON = True
if Laser_ON == True: # DEVO evitare di uscire dalla matrice
if x == w - 1: # controllo fine riga
file_gcode.write(
'G01 X' + str(float(x) / Scala) + ' Y' + str(float(y) / Scala) + ' F' + str(
F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
else:
if matrice_BN[y][x + 1] == B:
file_gcode.write('G01 X' + str(float(x + 1) / Scala) + ' Y' + str(
float(y) / Scala) + ' F' + str(F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
elif matrice_BN[y][x] != matrice_BN[y][x + 1]:
file_gcode.write('G01 X' + str(float(x + 1) / Scala) + ' Y' + str(
float(y) / Scala) + ' F' + str(F_G01) + '\n')
file_gcode.write(self.options.laseron + ' ' + ' S' + str(
255 - matrice_BN[y][x + 1]) + '\n')
else:
for x in reversed(range(w)):
if matrice_BN[y][x] != B:
if Laser_ON == False:
file_gcode.write(
'G00 X' + str(float(x + 1) / Scala) + ' Y' + str(float(y) / Scala) + '\n')
file_gcode.write(
self.options.laseron + ' ' + ' S' + str(255 - matrice_BN[y][x]) + '\n')
Laser_ON = True
if Laser_ON == True: # DEVO evitare di uscire dalla matrice
if x == 0: # controllo fine riga ritorno
file_gcode.write(
'G01 X' + str(float(x) / Scala) + ' Y' + str(float(y) / Scala) + ' F' + str(
F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
else:
if matrice_BN[y][x - 1] == B:
file_gcode.write('G01 X' + str(float(x) / Scala) + ' Y' + str(
float(y) / Scala) + ' F' + str(F_G01) + '\n')
file_gcode.write(self.options.laseroff + '\n')
Laser_ON = False
elif matrice_BN[y][x] != matrice_BN[y][x - 1]:
file_gcode.write('G01 X' + str(float(x) / Scala) + ' Y' + str(
float(y) / Scala) + ' F' + str(F_G01) + '\n')
file_gcode.write(self.options.laseron + ' ' + ' S' + str(
255 - matrice_BN[y][x - 1]) + '\n')
# Configurazioni finali standard Gcode
file_gcode.write('G00 X0 Y0; home\n')
# HOMING
file_gcode.write('G28\n')
file_gcode.write('M18\n')
file_gcode.write('M117 Trabajo completado!!\n')
file_gcode.write('M300 P1200 S150\n')
file_gcode.close() # Chiudo il file
######## ######## ######## ######## ######## ######## ######## ######## ########
def _main():
e = GcodeExport()
e.affect()
exit()
if __name__ == "__main__":
_main()