我不确定您要准确修改什么，因此我选择'(up)'在表示撤回的评论前添加单词，并'(down)'在表示未撤回的评论前添加该词。
file_name = "file.gcode" # put your filename here
with open(file_name, 'r+') as f:
new_code = "" # where the new modified code will be put
content = f.readlines() # gcode as a list where each element is a line
for line in content:
gcode, comment = line.strip('\n').split(";") # seperates the gcode from the comments
if 'unretract' in comment:
comment = ' (down) ' + comment
elif 'retract' in comment:
comment = ' (up)' + comment
new_code += gcode + ';' + comment + '\n' # rebuild the code from the modified pieces
f.seek(0) # set the cursor to the beginning of the file
f.write(new_code) # write the new code over the old one
文件内容现在是：
G1 Z0.242 F7800.000 ; move to next layer (0)
G1 E-2.00000 F2400.00000 ; (up) retract
G1 X0.000 Y30.140 F7800.000 ; move to first skirt point
G1 E0.00000 F2400.00000 ; (down) unretract
G1 X-53.493 Y30.140 E2.14998 F1800.000 ; skirt
G1 X57.279 Y-37.776 E22.65617 ; perimeter
G1 X-52.771 Y-38.586 E56.83128 ; infill
如果您想改为修改 gcode，假设'U'如果注释指示撤回，则将第一个字母替换为 a，'D'如果注释指示取消撤回，则只需替换它：
if 'unretract' in comment:
comment = ' (down) ' + comment
elif 'retract' in comment:
comment = ' (up)' + comment
这样：
if 'unretract' in comment:
gcode = 'D' + gcode[1:]
elif 'retract' in comment:
gcode = 'U' + gcode[1:]
新文件内容：
G1 Z0.242 F7800.000 ; move to next layer (0)
U1 E-2.00000 F2400.00000 ; retract
G1 X0.000 Y30.140 F7800.000 ; move to first skirt point
D1 E0.00000 F2400.00000 ; unretract
G1 X-53.493 Y30.140 E2.14998 F1800.000 ; skirt
G1 X57.279 Y-37.776 E22.65617 ; perimeter
G1 X-52.771 Y-38.586 E56.83128 ; infill
我希望这有帮助 ！
编辑
为了回答您获取 、 和 值的请求，以下X是Y用于F存储这些值的更新脚本：
file_name = "file.gcode" # put your filename here
with open(file_name, 'r+') as f:
coordinates = []
content = f.readlines() # gcode as a list where each element is a line
for line in content:
gcode, comment = line.strip('\n').split(";")
coordinate_set = {}
if 'retract' not in comment and 'layer' not in comment:
for num in gcode.split()[1:]:
coordinate_set[num[:1]] = float(num[1:])
coordinates.append(coordinate_set)
如果print(coordinates)你得到：
[{'X': 0.0, 'F': 7800.0, 'Y': 30.14}, {'E': 2.14998, 'X': -53.493, 'F': 1800.0, 'Y': 30.14}, {'E': 22.65617, 'X': 57.279, 'Y': -37.776}, {'E': 56.83128, 'X': -52.771, 'Y': -38.586}]
编辑 2
脚本 1：
file_name = "file.gcode"
with open(file_name, 'r+') as f:
new_code = ""
content = f.readlines()
for line in content:
if ';' in line:
try:
gcode, comment = line.strip('\n').split(";")
except:
print('ERROR\n', line)
else: # when there are no comments
gcode = line.strip('\n')
comment = ""
if 'unretract' in comment:
comment = ' (down) ' + comment
elif 'retract' in comment:
comment = ' (up)' + comment
if comment != "":
new_code += gcode + ';' + comment + '\n'
else: # when there are no comments
new_code += gcode + '\n'
f.seek(0)
f.write(new_code)
脚本 2：
file_name = "file.gcode"
with open(file_name, 'r+') as f:
coordinates = []
content = f.readlines()
for line in content:
if ';' in line:
try:
gcode, comment = line.strip('\n').split(";")
except:
print(' ERROR \n', line, '\n')
else:
gcode = line.strip('\n')
comment = ""
coordinate_set = {}
if 'retract' not in comment and 'layer' not in comment and gcode:
for num in gcode.split()[1:]:
coordinate_set[num[:1]] = float(num[1:])
coordinates.append(coordinate_set)
Slic3r 执行一些奇怪文本的某些行不起作用，这就是ERROR打印的内容。另外，我建议您不要尝试print所有坐标，因为这会使 Python 崩溃。如果要查看坐标的整体，可以将它们粘贴到单独的.txt文件中，如下所示：
with ('coordinates.txt', 'w') as f2:
f2.write(coordinates)
编辑 3
更新了脚本以使用括号中的注释。
脚本 1：
file_name = "file.gcode"
with open(file_name, 'r+') as f:
new_code = ""
content = f.readlines()
for line in content:
if ';' in line:
try:
gcode, comment = line.strip('\n').split(";")
except:
print('ERROR\n', line)
else: # when there are no comments
gcode = line.strip('\n')
comment = ""
if 'unretract' in comment:
comment = ' (down) ' + comment
elif 'retract' in comment:
comment = ' (up)' + comment
if comment != "":
new_code += gcode + ';' + comment + '\n'
else: # when there are no comments
new_code += gcode + '\n'
f.seek(0)
f.write(new_code)
脚本 2：
file_name = "3Samples_0skin_3per.gcode" # put your filename here
with open(file_name, 'r+') as f:
coordinates = []
content = f.readlines()
for line in content:
if ';' in line:
try:
gcode, comment = line.strip('\n').split(";")
except:
print(' ERROR 1: \n', line, '\n')
elif '(' in line:
try:
gcode, comment = line.strip('\n').strip(')').split("(")
except:
print('ERROR 2: \n', line, '\n')
else:
gcode = line.strip('\n')
comment = ""
coordinate_set = {}
if 'retract' not in comment and 'layer' not in comment and gcode:
for num in gcode.split()[1:]:
if len(num) > 1:
try:
coordinate_set[num[:1]] = float(num[1:])
except:
print('ERROR 3: \n', gcode, '\n')
coordinates.append(coordinate_set)