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fixed issue 171

issue-171
Andrew Port 2022-07-09 19:49:12 -03:00
parent 9ac7f62515
commit 8df19f1c12
1 changed files with 5 additions and 3 deletions
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8
svgpathtools/path.py
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@ -294,6 +294,10 @@ def scale(curve, sx, sy=None, origin=0j):
def transform(curve, tf): def transform(curve, tf):
"""Transforms the curve by the homogeneous transformation matrix tf""" """Transforms the curve by the homogeneous transformation matrix tf"""
if all((tf == np.eye(3)).ravel()):
return curve # tf is identity, return curve as is
def to_point(p): def to_point(p):
return np.array([[p.real], [p.imag], [1.0]]) return np.array([[p.real], [p.imag], [1.0]])
@ -311,8 +315,6 @@ def transform(curve, tf):
return bpoints2bezier([to_complex(tf.dot(to_point(p))) return bpoints2bezier([to_complex(tf.dot(to_point(p)))
for p in curve.bpoints()]) for p in curve.bpoints()])
elif isinstance(curve, Arc): elif isinstance(curve, Arc):
if curve == Arc(start=(-3600000-31200000j), radius=(400000+400000j), rotation=0.0, large_arc=True, sweep=False, end=(-2800000-31200000j)):
from IPython import embed; embed() ### DEBUG
new_start = to_complex(tf.dot(to_point(curve.start))) new_start = to_complex(tf.dot(to_point(curve.start)))
new_end = to_complex(tf.dot(to_point(curve.end))) new_end = to_complex(tf.dot(to_point(curve.end)))
@ -339,7 +341,7 @@ def transform(curve, tf):
else : else :
return Arc(new_start, radius=new_radius, rotation=curve.rotation + rot, return Arc(new_start, radius=new_radius, rotation=curve.rotation + rot,
large_arc=curve.large_arc, sweep=curve.sweep, end=new_end, large_arc=curve.large_arc, sweep=curve.sweep, end=new_end,
autoscale_radius=False) autoscale_radius=True)
else: else:
raise TypeError("Input `curve` should be a Path, Line, " raise TypeError("Input `curve` should be a Path, Line, "