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Implemented tapered cutBlind

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adam-urbanczyk
2019-02-07 21:03:20 +01:00
parent 4a981a1493
commit c292a9f2db
2 changed files with 20 additions and 5 deletions
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5
cadquery/cq.py
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@ -2397,7 +2397,7 @@ class Workplane(CQ):
return self.newObject([newS]) return self.newObject([newS])
def cutBlind(self, distanceToCut, clean=True): def cutBlind(self, distanceToCut, clean=True, taper=None):
""" """
Use all un-extruded wires in the parent chain to create a prismatic cut from existing solid. Use all un-extruded wires in the parent chain to create a prismatic cut from existing solid.
@ -2408,6 +2408,7 @@ class Workplane(CQ):
:type distanceToCut: float, >0 means in the positive direction of the workplane normal, :type distanceToCut: float, >0 means in the positive direction of the workplane normal,
<0 means in the negative direction <0 means in the negative direction
:param boolean clean: call :py:meth:`clean` afterwards to have a clean shape :param boolean clean: call :py:meth:`clean` afterwards to have a clean shape
:param float taper: angle for optional tapered extrusion
:raises: ValueError if there is no solid to subtract from in the chain :raises: ValueError if there is no solid to subtract from in the chain
:return: a CQ object with the resulting object selected :return: a CQ object with the resulting object selected
@ -2417,7 +2418,7 @@ class Workplane(CQ):
Cut Up to Surface Cut Up to Surface
""" """
# first, make the object # first, make the object
toCut = self._extrude(distanceToCut) toCut = self._extrude(distanceToCut, taper=taper)
# now find a solid in the chain # now find a solid in the chain

18
tests/TestCadQuery.py
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@ -1700,8 +1700,14 @@ class TestCadQuery(BaseTest):
(0., 0., 2. * h), (0., 0., 2. * h),
decimal_places) decimal_places)
def testTaperedExtrudeCutBlind(self):
h = 1.
r = 1.
t = 5
# extrude with a positive taper # extrude with a positive taper
s = Workplane("XY").circle(r).extrude(h, taper=5) s = Workplane("XY").circle(r).extrude(h, taper=t)
top_face = s.faces(">Z") top_face = s.faces(">Z")
bottom_face = s.faces("<Z") bottom_face = s.faces("<Z")
@ -1712,7 +1718,7 @@ class TestCadQuery(BaseTest):
self.assertTrue(delta < 0) self.assertTrue(delta < 0)
# extrude with a negative taper # extrude with a negative taper
s = Workplane("XY").circle(r).extrude(h, taper=-5) s = Workplane("XY").circle(r).extrude(h, taper=-t)
top_face = s.faces(">Z") top_face = s.faces(">Z")
bottom_face = s.faces("<Z") bottom_face = s.faces("<Z")
@ -1722,6 +1728,14 @@ class TestCadQuery(BaseTest):
self.assertTrue(delta > 0) self.assertTrue(delta > 0)
# cut a tapered hole
s = Workplane("XY").rect(2*r,2*r).extrude(2*h).faces('>Z').workplane()\
.rect(r,r).cutBlind(-h, taper=t)
middle_face = s.faces('>Z[-2]')
self.assertTrue(middle_face.val().Area() < 1)
def testClose(self): def testClose(self):
# Close without endPoint and startPoint coincide. # Close without endPoint and startPoint coincide.
# Create a half-circle # Create a half-circle