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occt7 updates

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looooo
2016-09-08 16:54:43 +02:00
parent 9c6920af84
commit 8464f37a73
3 changed files with 47 additions and 48 deletions
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86
gearfunc/_Classes.py
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@@ -27,9 +27,9 @@ from ._cycloide_tooth import cycloide_tooth
from ._bevel_tooth import bevel_tooth
from Part import BSplineCurve, Shape, Wire, Face, makePolygon, \
BRepOffsetAPI, Shell, makeLoft, Solid, Line, BSplineSurface, Compound,\
show, makePolygon, makeLoft, makeHelix
show, makePolygon, makeHelix
import Part
from ._functions import rotation3D
from ._functions import rotation3D, rotation
from numpy import pi, cos, sin, tan
import numpy
@@ -123,29 +123,20 @@ class involute_gear():
fp.gear.backlash = fp.backlash.Value
fp.gear._update()
pts = fp.gear.points(num=fp.numpoints)
rotated_pts = pts
rot = rotation(-fp.gear.phipart)
for i in range(fp.gear.z - 1):
rotated_pts = map(rot, rotated_pts)
pts.append(numpy.array([pts[-1][-1], rotated_pts[0][0]]))
pts += rotated_pts
pts.append(numpy.array([pts[-1][-1], pts[0][0]]))
if not fp.simple:
wi = []
for i in pts:
out = BSplineCurve()
out.interpolate(list(map(fcvec, i)))
wi.append(out)
s = Wire(Shape(wi).Edges)
wi = []
for i in range(fp.gear.z):
rot = App.Matrix()
rot.rotateZ(-i * fp.gear.phipart)
tooth_rot = s.transformGeometry(rot)
if i != 0:
pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
pt_1 = tooth_rot.Edges[0].Vertexes[-1].Point
wi.append(Wire([Line(pt_0, pt_1).toShape()]))
wi.append(tooth_rot)
pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
pt_1 = wi[0].Edges[0].Vertexes[-1].Point
wi.append(Wire([Line(pt_0, pt_1).toShape()]))
wi.append(out.toShape())
wi = Wire(wi)
fp.Shape = wi
if fp.beta.Value == 0:
sh = Face(wi)
fp.Shape = sh.extrude(App.Vector(0, 0, fp.height.Value))
@@ -255,25 +246,18 @@ class cycloide_gear():
fp.gear.backlash = fp.backlash.Value
fp.gear._update()
pts = fp.gear.points(num=fp.numpoints)
rotated_pts = pts
rot = rotation(-fp.gear.phipart)
for i in range(fp.gear.z - 1):
rotated_pts = map(rot, rotated_pts)
pts.append(numpy.array([pts[-1][-1], rotated_pts[0][0]]))
pts += rotated_pts
pts.append(numpy.array([pts[-1][-1], pts[0][0]]))
wi = []
for i in pts:
out = BSplineCurve()
out.interpolate(list(map(fcvec, i)))
wi.append(out)
s = Wire(Shape(wi).Edges)
wi = []
for i in range(fp.gear.z):
rot = App.Matrix()
rot.rotateZ(-i * fp.gear.phipart)
tooth_rot = s.transformGeometry(rot)
if i != 0:
pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
pt_1 = tooth_rot.Edges[0].Vertexes[-1].Point
wi.append(Wire([Line(pt_0, pt_1).toShape()]))
wi.append(tooth_rot)
pt_0 = wi[-1].Edges[-1].Vertexes[0].Point
pt_1 = wi[0].Edges[0].Vertexes[-1].Point
wi.append(Wire([Line(pt_0, pt_1).toShape()]))
wi.append(out.toShape())
wi = Wire(wi)
if fp.beta.Value == 0:
sh = Face(wi)
@@ -372,11 +356,18 @@ class bevel_gear():
scale = fp.m.Value * fp.gear.z / 2 / tan(fp.pitch_angle.Value * pi / 180)
fp.gear.clearance = fp.clearance / scale
fp.gear._update()
pts = fp.gear.points(num=fp.numpoints)
pts = list(fp.gear.points(num=fp.numpoints))
rotated_pts = pts
rot = rotation3D(2 * pi / fp.teeth)
for i in range(fp.gear.z - 1):
rotated_pts = map(rot, rotated_pts)
pts.append(numpy.array([pts[-1][-1], rotated_pts[0][0]]))
pts += rotated_pts
pts.append(numpy.array([pts[-1][-1], pts[0][0]]))
scale1 = scale - fp.height.Value / 2
scale2 = scale + fp.height.Value / 2
fp.Shape = makeLoft([self.create_teeth(pts, scale1, fp.teeth),
self.create_teeth(pts, scale2, fp.teeth)], True)
fp.Shape = makeLoft([makeBSplineWire([pt * scale1 for pt in pts]),
makeBSplineWire([pt * scale2 for pt in pts])], True)
# fp.Shape = self.create_teeth(pts, pos1, fp.teeth)
@@ -405,12 +396,13 @@ class bevel_gear():
def create_teeth(self, pts, pos, teeth):
w1 = []
for i in pts:
scale = lambda x: x * pos
i_scale = list(map(scale, i))
out = BSplineCurve()
out.interpolate(list(map(fcvec, i_scale)))
w1.append(out)
pts = [pt * pos for pt in pts]
rotated_pts = scaled_points
rot = rotation3D(- 2 * i * pi / teeth)
for i in range(teeth - 1):
rotated_pts = map(rot, rotated_pts)
pts.append(numpy.array([pts[-1][-1], rotated_pts[0][0]]))
pts += rotated_pts
s = Wire(Shape(w1).Edges)
wi = []
for i in range(teeth):
@@ -469,3 +461,11 @@ def make_face(edge1, edge2):
w = Wire([e3, e4, e1, e2])
return(Face(w))
def makeBSplineWire(pts):
wi = []
for i in pts:
out = BSplineCurve()
out.interpolate(list(map(fcvec, i)))
wi.append(out.toShape())
return Wire(wi)

6
gearfunc/_bevel_tooth.py
View File

@@ -145,11 +145,11 @@ class bevel_tooth(object):
rot = rotation3D(2*pi/self.z)
if self.add_foot:
return(array([
[pts[0], pts[1]],
array([pts[0], pts[1]]),
pts[1:],
[pts[-1], pts1[0]],
array([pts[-1], pts1[0]]),
pts1[:-1],
[pts1[-2], pts1[-1]]
array([pts1[-2], pts1[-1]])
]))
else:
return(array([pts, [pts[-1], pts1[0]], pts1]))

3
gearfunc/_functions.py
View File

@@ -44,8 +44,7 @@ def reflection3D(pressure_angle):
def rotation(pressure_angle, midpoint=None):
print(midpoint)
midpoint = midpoint or [0, 0]
midpoint = midpoint or [0., 0.]
mat = array([[cos(pressure_angle), -sin(pressure_angle)], [sin(pressure_angle), cos(pressure_angle)]])
midpoint = array(midpoint)
vec = midpoint - dot(midpoint, mat)