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FingerJoints: Add "snap" style

This commit is contained in:
Florian Festi 2022-03-20 23:50:56 +01:00
parent be0aec17cf
commit f1f829d5fb
1 changed files with 16 additions and 2 deletions
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18
boxes/edges.py
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@ -684,7 +684,7 @@ Values:
"""
absolute_params = {
"style" : ("rectangular", "springs", "barbs"),
"style" : ("rectangular", "springs", "barbs", "snap"),
"surroundingspaces": 2.0,
"angle" : 90.0,
}
@ -753,6 +753,7 @@ class FingerJointEdge(BaseEdge, FingerJointBase):
def __call__(self, length, bedBolts=None, bedBoltSettings=None, **kw):
positive = self.positive
t = self.settings.thickness
s, f, thickness = self.settings.space, self.settings.finger, self.settings.thickness
@ -792,7 +793,6 @@ class FingerJointEdge(BaseEdge, FingerJointBase):
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":
t = self.settings.thickness
n = int((h-0.1*t) // (0.3*t))
a = math.degrees(math.atan(0.5))
l = 5**0.5
@ -801,6 +801,18 @@ class FingerJointEdge(BaseEdge, FingerJointBase):
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)
@ -810,6 +822,8 @@ class FingerJointEdge(BaseEdge, FingerJointBase):
""" """
widths = self.fingerLength(self.settings.angle)
if self.positive:
if self.settings.style == "snap":
return widths[0] - widths[1] + self.settings.thickness
return widths[0] - widths[1]
else:
return 0