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boxespy
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FingerJoints: Move drawing fingers into function 

so it can be reused by sub classes
This commit is contained in:
Florian Festi 2022-06-27 14:58:08 +02:00
parent c70eecd1d1
commit 13170f0306
1 changed files with 38 additions and 33 deletions
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71
boxes/edges.py
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@ -880,6 +880,43 @@ class FingerJointEdge(BaseEdge, FingerJointBase):
description = "Finger Joint" description = "Finger Joint"
positive = True positive = True
def draw_finger(self, f, h, style, positive=True):
t = self.settings.thickness
if positive:
if style == "springs":
self.polyline(
0, -90 * p, 0.8*h, (90 * p, 0.2*h),
0.1 * h, 90, 0.9*h, -180, 0.9*h, 90,
f - 0.6*h,
90, 0.9*h, -180, 0.9*h, 90, 0.1*h,
(90 * p, 0.2 *h), 0.8*h, -90 * p)
elif style == "barbs":
n = int((h-0.1*t) // (0.3*t))
a = math.degrees(math.atan(0.5))
l = 5**0.5
poly = [h - n*0.3*t] + \
([-45, 0.1*2**0.5*t, 45+a, l*0.1*t, -a, 0] * n)
self.polyline(
0, -90, *poly, 90, f, 90, *reversed(poly), -90
)
elif style == "snap":
a12 = math.degrees(math.atan(0.5))
l12 = t / math.cos(math.radians(a12))
d = 4*t
d2 = d + 1*t
a = math.degrees(math.atan((0.5*t)/(h+d2)))
l = (h+d2) / math.cos(math.radians(a))
poly = [0, 90, d, -180, d+h, -90, 0.5*t, 90+a12, l12, 90-a12,
0.5*t, 90-a, l, +a, 0, (-180, 0.1*t), h+d2, 90, f-1.7*t, 90-a12, l12, a12, h, -90, 0]
if i < fingers//2:
poly = list(reversed(poly))
self.polyline(*poly)
else:
self.polyline(0, -90, h, 90, f, 90, h, -90)
else:
self.polyline(0, 90, h, -90, f, -90, h, 90)
def __call__(self, length, bedBolts=None, bedBoltSettings=None, **kw): def __call__(self, length, bedBolts=None, bedBoltSettings=None, **kw):
positive = self.positive positive = self.positive
@ -887,8 +924,6 @@ class FingerJointEdge(BaseEdge, FingerJointBase):
s, f, thickness = self.settings.space, self.settings.finger, self.settings.thickness s, f, thickness = self.settings.space, self.settings.finger, self.settings.thickness
p = 1 if positive else -1
fingers, leftover = self.calcFingers(length, bedBolts) fingers, leftover = self.calcFingers(length, bedBolts)
if not positive: if not positive:
@ -914,37 +949,7 @@ class FingerJointEdge(BaseEdge, FingerJointBase):
self.bedBoltHole(s, bedBoltSettings) self.bedBoltHole(s, bedBoltSettings)
else: else:
self.edge(s) self.edge(s)
self.draw_finger(f, h, self.settings.style, positive)
if positive and self.settings.style == "springs":
self.polyline(
0, -90 * p, 0.8*h, (90 * p, 0.2*h),
0.1 * h, 90, 0.9*h, -180, 0.9*h, 90,
f - 0.6*h,
90, 0.9*h, -180, 0.9*h, 90, 0.1*h,
(90 * p, 0.2 *h), 0.8*h, -90 * p)
elif positive and self.settings.style == "barbs":
n = int((h-0.1*t) // (0.3*t))
a = math.degrees(math.atan(0.5))
l = 5**0.5
poly = [h - n*0.3*t] + \
([-45, 0.1*2**0.5*t, 45+a, l*0.1*t, -a, 0] * n)
self.polyline(
0, -90, *poly, 90, f, 90, *reversed(poly), -90
)
elif positive and self.settings.style == "snap":
a12 = math.degrees(math.atan(0.5))
l12 = t / math.cos(math.radians(a12))
d = 4*t
d2 = d + 1*t
a = math.degrees(math.atan((0.5*t)/(h+d2)))
l = (h+d2) / math.cos(math.radians(a))
poly = [0, 90, d, -180, d+h, -90, 0.5*t, 90+a12, l12, 90-a12,
0.5*t, 90-a, l, +a, 0, (-180, 0.1*t), h+d2, 90, f-1.7*t, 90-a12, l12, a12, h, -90, 0]
if i < fingers//2:
poly = list(reversed(poly))
self.polyline(*poly)
else:
self.polyline(0, -90 * p, h, 90 * p, f, 90 * p, h, -90 * p)
self.edge(leftover / 2.0, tabs=1) self.edge(leftover / 2.0, tabs=1)