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Make machine_nozzle_offset is not None before using it

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CURA-4053
This commit is contained in:
Lipu Fei 2017-07-17 13:00:14 +02:00
parent afe5f56862
commit e6ce98b36d
1 changed files with 6 additions and 1 deletions
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7
cura/BuildVolume.py
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@ -746,7 +746,12 @@ class BuildVolume(SceneNode):
#The build volume is defined as the union of the area that all extruders can reach, so we need to know the relative offset to all extruders.
for other_extruder in ExtruderManager.getInstance().getActiveExtruderStacks():
other_offset_x = other_extruder.getProperty("machine_nozzle_offset_x", "value")
other_offset_y = -other_extruder.getProperty("machine_nozzle_offset_y", "value")
if other_offset_x is None:
other_offset_x = 0
other_offset_y = other_extruder.getProperty("machine_nozzle_offset_y", "value")
if other_offset_y is None:
other_offset_y = 0
other_offset_y = -other_offset_y
left_unreachable_border = min(left_unreachable_border, other_offset_x - offset_x)
right_unreachable_border = max(right_unreachable_border, other_offset_x - offset_x)
top_unreachable_border = min(top_unreachable_border, other_offset_y - offset_y)