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Handle mirrored gds shapes

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This commit is contained in:
jan 2018-04-14 15:29:44 -07:00
parent f580e784f7
commit 70f3ea9304
1 changed files with 19 additions and 1 deletions
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20
masque/file/gdsii.py
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@ -102,6 +102,14 @@ def write(patterns: Pattern or List[Pattern],
xy=numpy.round([subpat.offset]).astype(int))
sref.strans = 0
sref.angle = subpat.rotation * 180 / numpy.pi
mirror_x, mirror_y = subpat.mirrored
if mirror_y and mirror_y:
sref.angle += 180
elif mirror_x:
sref.strans = set_bit(sref.strans, 15 - 0, True)
elif mirror_y:
sref.angle += 180
sref.strans = set_bit(sref.strans, 15 - 0, True)
sref.mag = subpat.scale
structure.append(sref)
@ -212,6 +220,14 @@ def write_dose2dtype(patterns: Pattern or List[Pattern],
sref.strans = 0
sref.angle = subpat.rotation * 180 / numpy.pi
sref.mag = subpat.scale
mirror_x, mirror_y = subpat.mirrored
if mirror_y and mirror_y:
sref.angle += 180
elif mirror_x:
sref.strans = set_bit(sref.strans, 15 - 0, True)
elif mirror_y:
sref.angle += 180
sref.strans = set_bit(sref.strans, 15 - 0, True)
structure.append(sref)
with open(filename, mode='wb') as stream:
@ -258,7 +274,6 @@ def read(filename: str,
# Helper function to create a SubPattern from an SREF or AREF. Sets subpat.pattern to None
# and sets the instance attribute .ref_name to the struct_name.
#
# BUG: Need to check STRANS bit 0 to handle x-reflection
# BUG: "Absolute" means not affected by parent elements.
# That's not currently supported by masque at all, so need to either tag it and
# undo the parent transformations, or implement it in masque.
@ -277,6 +292,9 @@ def read(filename: str,
if get_bit(element.strans, 15 - 14):
#subpat.offset = numpy.dot(rotation_matrix_2d(subpat.rotation), subpat.offset)
raise PatternError('Absolute rotation is not implemented yet!')
# Bit 0 means mirror x-axis
if get_bit(element.strans, 15 - 0):
subpat.mirror(axis=0)
return subpat