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Be robust against faulty data from the engine

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We modify the line types that we get from the engine so that it's always within range.

This was a bug I found during development of CURA-3903.
This commit is contained in:
Ghostkeeper 2017-06-02 11:35:11 +02:00
parent a58926263c
commit f719be2484
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GPG Key ID: C5F96EE2BC0F7E75
1 changed files with 12 additions and 6 deletions
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18
cura/LayerPolygon.py
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@ -1,4 +1,6 @@
from UM.Math.Color import Color
# Copyright (c) 2017 Ultimaker B.V.
# Cura is released under the terms of the AGPLv3 or higher.
from UM.Application import Application
from typing import Any
import numpy
@ -16,8 +18,9 @@ class LayerPolygon:
MoveCombingType = 8
MoveRetractionType = 9
SupportInterfaceType = 10
__jump_map = numpy.logical_or(numpy.logical_or(numpy.arange(11) == NoneType, numpy.arange(11) == MoveCombingType), numpy.arange(11) == MoveRetractionType)
__number_of_types = 11
__jump_map = numpy.logical_or(numpy.logical_or(numpy.arange(__number_of_types) == NoneType, numpy.arange(__number_of_types) == MoveCombingType), numpy.arange(__number_of_types) == MoveRetractionType)
## LayerPolygon, used in ProcessSlicedLayersJob
# \param extruder
@ -28,6 +31,9 @@ class LayerPolygon:
def __init__(self, extruder, line_types, data, line_widths, line_thicknesses):
self._extruder = extruder
self._types = line_types
for i in range(len(self._types)):
if self._types[i] >= self.__number_of_types: #Got faulty line data from the engine.
self._types[i] = self.NoneType
self._data = data
self._line_widths = line_widths
self._line_thicknesses = line_thicknesses
@ -36,11 +42,11 @@ class LayerPolygon:
self._vertex_end = 0
self._index_begin = 0
self._index_end = 0
self._jump_mask = self.__jump_map[self._types]
self._jump_count = numpy.sum(self._jump_mask)
self._mesh_line_count = len(self._types)-self._jump_count
self._vertex_count = self._mesh_line_count + numpy.sum( self._types[1:] == self._types[:-1])
self._mesh_line_count = len(self._types) - self._jump_count
self._vertex_count = self._mesh_line_count + numpy.sum(self._types[1:] == self._types[:-1])
# Buffering the colors shouldn't be necessary as it is not
# re-used and can save alot of memory usage.