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more doco, reformatted __all__

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git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@494 4cde692c-a291-49d1-8350-778aa11640f8
This commit is contained in:
jvr 2005-02-25 12:51:49 +00:00
parent 441fdd1e9f
commit 86c07d2b9a
1 changed files with 19 additions and 7 deletions
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26
Lib/fontTools/misc/bezierTools.py
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@ -2,10 +2,15 @@
__all__ = [
"calcQuadraticBounds", "calcCubicBounds",
"splitLine", "splitQuadratic", "splitCubic",
"splitQuadraticAtT", "splitCubicAtT",
"solveQuadratic", "solveCubic",
"calcQuadraticBounds",
"calcCubicBounds",
"splitLine",
"splitQuadratic",
"splitCubic",
"splitQuadraticAtT",
"splitCubicAtT",
"solveQuadratic",
"solveCubic",
]
from fontTools.misc.arrayTools import calcBounds
@ -108,7 +113,7 @@ def splitQuadratic(pt1, pt2, pt3, where, isHorizontal):
((0.0, 0.0), (7.32233047034, 14.6446609407), (14.6446609407, 25.0))
((14.6446609407, 25.0), (50.0, 75.0), (85.3553390593, 25.0))
((85.3553390593, 25.0), (92.6776695297, 14.6446609407), (100.0, -7.1054273576e-15))
>>> # XXX I'm not at all sure it the following behavior is desirable:
>>> # XXX I'm not at all sure if the following behavior is desirable:
>>> printSegments(splitQuadratic((0, 0), (50, 100), (100, 0), 50, True))
((0.0, 0.0), (25.0, 50.0), (50.0, 50.0))
((50.0, 50.0), (50.0, 50.0), (50.0, 50.0))
@ -150,7 +155,9 @@ def splitCubic(pt1, pt2, pt3, pt4, where, isHorizontal):
def splitQuadraticAtT(pt1, pt2, pt3, *ts):
"""
"""Split the quadratic curve between pt1, pt2 and pt3 at one or more
values of t. Return a list of curve segments.
>>> printSegments(splitQuadraticAtT((0, 0), (50, 100), (100, 0), 0.5))
((0.0, 0.0), (25.0, 50.0), (50.0, 50.0))
((50.0, 50.0), (75.0, 50.0), (100.0, 0.0))
@ -164,7 +171,9 @@ def splitQuadraticAtT(pt1, pt2, pt3, *ts):
def splitCubicAtT(pt1, pt2, pt3, pt4, *ts):
"""
"""Split the cubic curve between pt1, pt2, pt3 and pt4 at one or more
values of t. Return a list of curve segments.
>>> printSegments(splitCubicAtT((0, 0), (25, 100), (75, 100), (100, 0), 0.5))
((0.0, 0.0), (12.5, 50.0), (31.25, 75.0), (50.0, 75.0))
((50.0, 75.0), (68.75, 75.0), (87.5, 50.0), (100.0, 0.0))
@ -342,6 +351,9 @@ def _segmentrepr(obj):
def printSegments(segments):
"""Helper for the doctests, displaying each segment in a list of
segments on a single line as a tuple.
"""
for segment in segments:
print _segmentrepr(segment)