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Take into account that can be empty layers below the model when the

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setting Remove empty layers is disabled.

The empty layers are skipped if they are at the bottom. Also keeps the
models printed with raft showing correclty.

Contributes to CURA-5768.
This commit is contained in:
Diego Prado Gesto 2018-10-04 18:03:01 +02:00
parent d91d0fab10
commit 866110d70c
1 changed files with 23 additions and 10 deletions
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25
plugins/CuraEngineBackend/ProcessSlicedLayersJob.py
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@ -2,6 +2,7 @@
#Cura is released under the terms of the LGPLv3 or higher.
import gc
import sys
from UM.Job import Job
from UM.Application import Application
@ -95,12 +96,16 @@ class ProcessSlicedLayersJob(Job):
layer_count = len(self._layers)
# Find the minimum layer number
# When disabling the remove empty first layers setting, the minimum layer number will be a positive
# value. In that case the first empty layers will be discarded and start processing layers from the
# first layer with data.
# When using a raft, the raft layers are sent as layers < 0. Instead of allowing layers < 0, we
# instead simply offset all other layers so the lowest layer is always 0. It could happens that
# the first raft layer has value -8 but there are just 4 raft (negative) layers.
min_layer_number = 0
# simply offset all other layers so the lowest layer is always 0. It could happens that the first
# raft layer has value -8 but there are just 4 raft (negative) layers.
min_layer_number = sys.maxsize
negative_layers = 0
for layer in self._layers:
if layer.repeatedMessageCount("path_segment") > 0:
if layer.id < min_layer_number:
min_layer_number = layer.id
if layer.id < 0:
@ -109,9 +114,17 @@ class ProcessSlicedLayersJob(Job):
current_layer = 0
for layer in self._layers:
# Negative layers are offset by the minimum layer number, but the positive layers are just
# offset by the number of negative layers so there is no layer gap between raft and model
abs_layer_number = layer.id + abs(min_layer_number) if layer.id < 0 else layer.id + negative_layers
# If the layer is below the minimum, it means that there is no data, so that we don't create a layer
# data. However, if there are empty layers in between, we compute them.
if layer.id < min_layer_number:
continue
# Layers are offset by the minimum layer number. In case the raft (negative layers) is being used,
# then the absolute layer number is adjusted by removing the empty layers that can be in between raft
# and the model
abs_layer_number = layer.id - min_layer_number
if layer.id >= 0 and negative_layers != 0:
abs_layer_number += (min_layer_number + negative_layers)
layer_data.addLayer(abs_layer_number)
this_layer = layer_data.getLayer(abs_layer_number)