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Arcs can now have tips on either side

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Todo: tips on both sides, eliminate overshoot
This commit is contained in:
Ben Hambrecht 2018-01-22 16:07:53 -08:00
parent 1d6d3b3717
commit 6e1c84a305
1 changed files with 5 additions and 2 deletions
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7
topics/geometry.py
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@ -36,9 +36,12 @@ class Arc(VMobject):
)
self.scale(self.radius, about_point = ORIGIN)
def add_tip(self, tip_length = 0.25):
def add_tip(self, tip_length = 0.25, end = 0):
#TODO, do this a better way
p1, p2 = self.points[-2:]
if end == 1:
p1, p2 = self.points[-2:]
else:
p2, p1 = self.points[:2]
arrow = Arrow(
p1, 2*p2 - p1,
tip_length = tip_length,