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Add PostProcessingPlugin script DisplayPercentCompleteOnLCD
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# Cura PostProcessingPlugin
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# Author: Alexander Gee
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# Date: May 3, 2020
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# Modified: May 3, 2020
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# Description: This plugin will write the percent of time complete on the LCD using Marlin's M73 command.
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from ..Script import Script
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import re
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class DisplayPercentCompleteOnLCD(Script):
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def __init__(self):
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super().__init__()
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def getSettingDataString(self):
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return """{
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"name":"Display Percent Complete on LCD",
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"key":"DisplayPercentCompleteOnLCD",
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"metadata": {},
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"version": 2,
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"settings":
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{
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"TurnOn":
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{
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"label": "Enable",
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"description": "When enabled, It will write the percent of time complete on the LCD using Marlin's M73 command.",
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"type": "bool",
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"default_value": false
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}
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}
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}"""
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# Get the time value from a line as a float.
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# Example line ;TIME_ELAPSED:1234.6789 or ;TIME:1337
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def getTimeValue(self, line):
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list_split = re.split(":", line) # Split at ":" so we can get the numerical value
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return float(list_split[1]) # Convert the numerical portion to a float
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def execute(self, data):
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if self.getSettingValueByKey("TurnOn"):
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total_time = -1
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previous_layer_end_percentage = 0
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for layer in data:
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layer_index = data.index(layer)
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lines = layer.split("\n")
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for line in lines:
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if line.startswith(";TIME:") and total_time == -1:
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# This line represents the total time required to print the gcode
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total_time = self.getTimeValue(line)
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# Emit 0 percent to sure Marlin knows we are overriding the completion percentage
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lines.insert(lines.index(line),"M73 P0")
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elif line.startswith(";TIME_ELAPSED:"):
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# We've found one of the time elapsed values which are added at the end of layers
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# If total_time was not already found then noop
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if (total_time == -1):
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continue
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# Calculate percentage value this layer ends at
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layer_end_percentage = int((self.getTimeValue(line) / total_time) * 100)
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# Figure out how many percent of the total time is spent in this layer
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layer_percentage_delta = layer_end_percentage - previous_layer_end_percentage
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# If this layer represents less than 1 percent then we don't need to emit anything, continue to the next layer
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if (layer_percentage_delta == 0):
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continue
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# Grab the index of the current line and figure out how many lines represent one percent
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step = lines.index(line) / layer_percentage_delta
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for percentage in range(1, layer_percentage_delta + 1):
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# We add the percentage value here as while processing prior lines we will have inserted
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# percentage lines before the current one. Failing to do this will upset the spacing
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line_index = int((percentage * step) + percentage)
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# Due to integer truncation of the total time value in the gcode the percentage we
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# calculate may slightly exceed 100, as that is not valid we cap the value here
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output = min(percentage + previous_layer_end_percentage, 100)
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# Now insert the sanitized percentage into the GCODE
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lines.insert(line_index, "M73 P{}".format(output))
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previous_layer_end_percentage = layer_end_percentage
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# Join up the lines for this layer again and store them in the data array
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data[layer_index] = "\n".join(lines)
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return data
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