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import re
import sys
def getValue(line: str, key: str, default = None):
"""Convenience function that finds the value in a line of g-code.
When requesting key = x from line "G1 X100" the value 100 is returned.
"""
if not key in line or (';' in line and line.find(key) > line.find(';')):
return default
sub_part = line[line.find(key) + 1:]
m = re.search('^-?[0-9]+\.?[0-9]*', sub_part)
if m is None:
return default
try:
return int(m.group(0))
except ValueError: #Not an integer.
try:
return float(m.group(0))
except ValueError: #Not a number at all.
return default
def analyse(gcode, distance_to_report, print_layers = False):
lines_found = 0
previous_x = 0
previous_y = 0
dist_squared = distance_to_report * distance_to_report
current_layer = 0
for line in gcode.split("\n"):
if not line.startswith("G1"):
if line.startswith(";LAYER:"):
previous_x = 0
previous_y = 0
current_layer += 1
continue
current_x = getValue(line, "X")
current_y = getValue(line, "Y")
if current_x is None or current_y is None:
continue
diff_x = current_x - previous_x
diff_y = current_y - previous_y
if diff_x * diff_x + diff_y * diff_y < dist_squared:
lines_found += 1
if print_layers:
print("[!] ", distance_to_report, " layer ", current_layer, " ", previous_x, previous_y)
previous_y = current_y
previous_x = current_x
return lines_found
def loadAndPrettyPrint(file_name):
print(file_name.replace(".gcode",""))
with open(file_name) as f:
data = f.read()
print("| Line length | Num segments |")
print("| ------------- | ------------- |")
print("| 1 |", analyse(data, 1), "|")
print("| 0.5 |", analyse(data, 0.5), "|")
print("| 0.1 |", analyse(data, 0.1), "|")
print("| 0.05 |", analyse(data, 0.05), "|")
print("| 0.01 |", analyse(data, 0.01), "|")
print("| 0.005 |", analyse(data, 0.005), "|")
print("| 0.001 |", analyse(data, 0.001), "|")
if __name__ == "__main__":
if len(sys.argv) != 2 :
print("Usage: <input g-code>")
sys.exit(1)
in_filename = sys.argv[1]
loadAndPrettyPrint(sys.argv[1])
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