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Give shapes unique path-like identifiers when flattening

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Jan Petykiewicz 2019-05-13 23:55:42 -07:00
parent 9ab1372c7b
commit 347716ec6e
1 changed files with 18 additions and 2 deletions
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20
masque/pattern.py
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@ -315,15 +315,31 @@ class Pattern:
"""
Removes all subpatterns and adds equivalent shapes.
Shape identifiers are changed to represent their original position in the
pattern hierarchy:
(L1_name (str), L1_index (int), L2_name, L2_index, ..., *original_shape_identifier)
where L1_name is the first-level subpattern's name (e.g. self.subpatterns[0].pattern.name),
L2_name is the next-level subpattern's name (e.g.
self.subpatterns[0].pattern.subpatterns[0].pattern.name) and L1_index is an integer
used to differentiate between multiple instance of the same (or same-named) subpatterns.
:return: self
"""
subpatterns = copy.deepcopy(self.subpatterns)
self.subpatterns = []
shape_counts = {}
for subpat in subpatterns:
subpat.pattern.flatten()
p = subpat.as_pattern()
self.shapes += p.shapes
self.labels += p.labels
# Update identifiers so each shape has a unique one
for shape in p.shapes:
combined_identifier = (subpat.pattern.name,) + shape.identifier
shape_count = shape_counts.get(combined_identifier, 0)
shape.identifier = (subpat.pattern.name, shape_count) + shape.identifier
shape_counts[combined_identifier] = shape_count + 1
self.append(p)
return self
def translate_elements(self, offset: vector2) -> 'Pattern':