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# Cura PostProcessingPlugin
# Author: Mathias Lyngklip Kjeldgaard, Alexander Gee, Kimmo Toivanen
# Date: July 31, 2019
# Modified: Okt 22, 2020
# Description: This plugin displays progress on the LCD. It can output the estimated time remaining and the completion percentage.
from ..Script import Script
import re
import datetime
class DisplayProgressOnLCD(Script):
def __init__(self):
super().__init__()
def getSettingDataString(self):
return """{
"name": "Display Progress On LCD",
"key": "DisplayProgressOnLCD",
"metadata": {},
"version": 2,
"settings":
{
"time_remaining":
{
"label": "Time Remaining",
"description": "Select to write remaining time to the display.Select to write remaining time on the display using M117 status line message (almost all printers) or using M73 command (Prusa and Marlin 2 if enabled).",
"type": "bool",
"default_value": false
},
"time_remaining_method":
{
"label": "Time Reporting Method",
"description": "How should remaining time be shown on the display? It could use a generic message command (M117, almost all printers), or a specialised time remaining command (M73, Prusa and Marlin 2).",
"type": "enum",
"options": {
"m117":"M117 - All printers",
"m73":"M73 - Prusa, Marlin 2"
},
"enabled": "time_remaining",
"default_value": "m117"
},
"update_frequency":
{
"label": "Update frequency",
"description": "Update remaining time for every layer or periodically every minute or faster.",
"type": "enum",
"options": {"0":"Every layer","15":"Every 15 seconds","30":"Every 30 seconds","60":"Every minute"},
"default_value": "0",
"enabled": "time_remaining"
},
"percentage":
{
"label": "Percentage",
"description": "When enabled, set the completion bar percentage on the LCD using Marlin's M73 command.",
"type": "bool",
"default_value": false
}
}
}"""
# Get the time value from a line as a float.
# Example line ;TIME_ELAPSED:1234.6789 or ;TIME:1337
def getTimeValue(self, line):
list_split = re.split(":", line) # Split at ":" so we can get the numerical value
return float(list_split[1]) # Convert the numerical portion to a float
def outputTime(self, lines, line_index, time_left, mode):
# Do some math to get the time left in seconds into the right format. (HH,MM,SS)
time_left = max(time_left, 0)
m, s = divmod(time_left, 60)
h, m = divmod(m, 60)
# Create the string
if mode == "m117":
current_time_string = "{:d}h{:02d}m{:02d}s".format(int(h), int(m), int(s))
# And now insert that into the GCODE
lines.insert(line_index, "M117 Time Left {}".format(current_time_string))
else: # Must be m73.
mins = int(60 * h + m + s / 30)
lines.insert(line_index, "M73 R{}".format(mins))
def execute(self, data):
output_time = self.getSettingValueByKey("time_remaining")
output_time_method = self.getSettingValueByKey("time_remaining_method")
output_frequency = int(self.getSettingValueByKey("update_frequency"))
output_percentage = self.getSettingValueByKey("percentage")
line_set = {}
if output_percentage or output_time:
total_time = -1
previous_layer_end_percentage = 0
previous_layer_end_time = 0
for layer in data:
layer_index = data.index(layer)
lines = layer.split("\n")
for line in lines:
if (line.startswith(";TIME:") or line.startswith(";PRINT.TIME:")) and total_time == -1:
# This line represents the total time required to print the gcode
total_time = self.getTimeValue(line)
line_index = lines.index(line)
# In the beginning we may have 2 M73 lines, but it makes logic less complicated
if output_time:
self.outputTime(lines, line_index, total_time, output_time_method)
if output_percentage:
# Emit 0 percent to sure Marlin knows we are overriding the completion percentage
lines.insert(line_index, "M73 P0")
elif line.startswith(";TIME_ELAPSED:"):
# We've found one of the time elapsed values which are added at the end of layers
# If we have seen this line before then skip processing it. We can see lines multiple times because we are adding
# intermediate percentages before the line being processed. This can cause the current line to shift back and be
# encountered more than once
if line in line_set:
continue
line_set[line] = True
# If total_time was not already found then noop
if total_time == -1:
continue
current_time = self.getTimeValue(line)
line_index = lines.index(line)
if output_time:
if output_frequency == 0:
# Here we calculate remaining time
self.outputTime(lines, line_index, total_time - current_time, output_time_method)
else:
# Here we calculate remaining time and how many outputs are expected for the layer
layer_time_delta = int(current_time - previous_layer_end_time)
layer_step_delta = int((current_time - previous_layer_end_time) / output_frequency)
# If this layer represents less than 1 step then we don't need to emit anything, continue to the next layer
if layer_step_delta != 0:
# Grab the index of the current line and figure out how many lines represent one second
step = line_index / layer_time_delta
# Move new lines further as we add new lines above it
lines_added = 1
# Run through layer in seconds
for seconds in range(1, layer_time_delta + 1):
# Time from start to decide when to update
line_time = int(previous_layer_end_time + seconds)
# Output every X seconds and after last layer
if line_time % output_frequency == 0 or line_time == total_time:
# Line to add the output
time_line_index = int((seconds * step) + lines_added)
# Insert remaining time into the GCODE
self.outputTime(lines, time_line_index, total_time - line_time, output_time_method)
# Next line will be again lower
lines_added = lines_added + 1
previous_layer_end_time = int(current_time)
if output_percentage:
# Calculate percentage value this layer ends at
layer_end_percentage = int((current_time / total_time) * 100)
# Figure out how many percent of the total time is spent in this layer
layer_percentage_delta = layer_end_percentage - previous_layer_end_percentage
# If this layer represents less than 1 percent then we don't need to emit anything, continue to the next layer
if layer_percentage_delta != 0:
# Grab the index of the current line and figure out how many lines represent one percent
step = line_index / layer_percentage_delta
for percentage in range(1, layer_percentage_delta + 1):
# We add the percentage value here as while processing prior lines we will have inserted
# percentage lines before the current one. Failing to do this will upset the spacing
percentage_line_index = int((percentage * step) + percentage)
# Due to integer truncation of the total time value in the gcode the percentage we
# calculate may slightly exceed 100, as that is not valid we cap the value here
output = min(percentage + previous_layer_end_percentage, 100)
# Now insert the sanitized percentage into the GCODE
lines.insert(percentage_line_index, "M73 P{}".format(output))
previous_layer_end_percentage = layer_end_percentage
# Join up the lines for this layer again and store them in the data array
data[layer_index] = "\n".join(lines)
return data
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