def get_transform(self):
d = self.declaration
t = gp_Trsf()
#: TODO: Order matters... how to configure it???
if d.mirror:
try:
p,v = d.mirror
except ValueError:
raise ValueError("You must specify a tuple containing a (point,direction)")
t.SetMirror(gp_Ax1(gp_Pnt(*p),
gp_Dir(*v)))
if d.scale:
try:
p,s = d.scale
except ValueError:
raise ValueError("You must specify a tuple containing a (point,scale)")
t.SetScale(gp_Pnt(*p),s)
if d.translate:
t.SetTranslation(gp_Vec(*d.translate))
if d.rotate:
try:
p,v,a = d.rotate
except ValueError:
raise ValueError("You must specify a tuple containing a (point,direction,angle)")
t.SetRotation(gp_Ax1(gp_Pnt(*p),
gp_Dir(*v)),a)
return t
def rotate(occtopology, rot_pypt, pyaxis, degree):
"""
This function rotates an OCCtopology based on the rotation point, an axis and the rotation degree.
Parameters
----------
occtopology : OCCtopology
The OCCtopology to be rotated.
OCCtopology includes: OCCshape, OCCcompound, OCCcompsolid, OCCsolid, OCCshell, OCCface, OCCwire, OCCedge, OCCvertex
rot_pypt : tuple of floats
The OCCtopology will rotate in reference to this point.
A pypt is a tuple that documents the xyz coordinates of a pt e.g. (x,y,z)
pyaxis : tuple of floats
The OCCtopology will rotate along this axis.
A pyaxis is a tuple that documents the xyz of a direction e.g. (x,y,z)
degree : float
The degree of rotation.
Returns
-------
rotated topology : OCCtopology (OCCshape)
The rotated OCCtopology.
"""
from math import radians
gp_ax3 = gp_Ax1(gp_Pnt(rot_pypt[0], rot_pypt[1], rot_pypt[2]), gp_Dir(pyaxis[0], pyaxis[1], pyaxis[2]))
aTrsf = gp_Trsf()
aTrsf.SetRotation(gp_ax3, radians(degree))
rot_brep = BRepBuilderAPI_Transform(aTrsf)
rot_brep.Perform(occtopology, True)
rot_shape = rot_brep.Shape()
return rot_shape
def occ(display):
'''
display, start_display, add_menu, add_function_to_menu = init_display()
my_box = BRepPrimAPI_MakeBox(10., 20., 30.).Shape()
display.DisplayShape(my_box, update=True)
#start_display()
'''
display.EraseAll()
ais_boxshp = build_shape(display)
ax1 = gp_Ax1(gp_Pnt(25., 25., 25.), gp_Dir(0., 0., 1.))
aCubeTrsf = gp_Trsf()
angle = 0.0
tA = time.time()
n_rotations = 200
for i in range(n_rotations):
aCubeTrsf.SetRotation(ax1, angle)
aCubeToploc = TopLoc_Location(aCubeTrsf)
display.Context.SetLocation(ais_boxshp, aCubeToploc)
display.Context.UpdateCurrentViewer()
angle += 2*pi / n_rotations
print("%i rotations took %f" % (n_rotations, time.time() - tA))
def rotate(self, angle, axis):
ax = gp_Ax1(gp_Pnt(*axis[:3]), gp_Dir(*axis[3:]))
tr = gp_Trsf()
tr.SetRotation(ax, angle)
loc = TopLoc_Location(tr)
self.shape = BRepBuilderAPI_Transform(self.shape, tr).Shape()
self.__extract_curves()
return self
def rotating_cube_2_axis(event=None):
display.EraseAll()
ais_boxshp = build_shape()
ax1 = gp_Ax1(gp_Pnt(0., 0., 0.), gp_Dir(0., 0., 1.))
ax2 = gp_Ax1(gp_Pnt(0., 0., 0.), gp_Dir(0., 1., 0.))
a_cube_trsf = gp_Trsf()
a_cube_trsf2 = gp_Trsf()
angle = 0.0
tA = time.time()
n_rotations = 200
for i in range(n_rotations):
a_cube_trsf.SetRotation(ax1, angle)
a_cube_trsf2.SetRotation(ax2, angle)
aCubeToploc = TopLoc_Location(a_cube_trsf * a_cube_trsf2)
display.Context.SetLocation(ais_boxshp, aCubeToploc)
display.Context.UpdateCurrentViewer()
angle += 2*pi / n_rotations
print("%i rotations took %f" % (n_rotations, time.time() - tA))
def add_feature(base):
"""Add a "feature" to a shape. In this case we drill a hole through it."""
feature_diameter = 0.8
feature_origin = gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1))
feature_maker = BRepFeat_MakeCylindricalHole()
feature_maker.Init(base, feature_origin)
feature_maker.Build()
feature_maker.Perform(feature_diameter / 2.0)
shape = feature_maker.Shape()
return shape
def mirror_pnt_dir(brep, pnt, direction, copy=False):
'''
@param brep:
@param line:
'''
trns = gp_Trsf()
trns.SetMirror(gp_Ax1(pnt, direction))
brep_trns = BRepBuilderAPI_Transform(brep, trns, copy)
with assert_isdone(brep_trns, 'could not produce mirror'):
brep_trns.Build()
return brep_trns.Shape()
def update_shape(self,change):
d = self.declaration
c = d.shape if d.shape else self.get_shape()
#: Build arguments
args = [c.shape.Shape(),
gp_Ax1(d.position,d.direction)]
if d.angle:
args.append(d.angle)
args.append(d.copy)
self.shape = BRepPrimAPI_MakeRevol(*args)
def _cut_finger_notch(front, dx, dz):
finger_width = 2.0
finger_height = 1.0
front = _cut(front, _box(_pnt(dx / 2. - finger_width / 2., 0, dz - finger_height),
finger_width, THICKNESS_0, finger_height))
cyl = BRepPrimAPI_MakeCylinder(finger_width / 2.0, THICKNESS_0).Shape()
tr = gp.gp_Trsf()
tr.SetRotation(gp.gp_Ax1(gp.gp_Pnt(0, 0, 0), gp.gp_Dir(1, 0, 0)), math.pi / 2.0)
tr2 = gp.gp_Trsf()
tr2.SetTranslation(gp.gp_Vec(dx / 2., THICKNESS_0, dz - finger_height))
tr2.Multiply(tr)
cyl = BRepBuilderAPI_Transform(cyl, tr2, True).Shape()
front = _cut(front, cyl)
return front
def edge(event=None):
# The blud edge
BlueEdge = BRepBuilderAPI_MakeEdge(gp_Pnt(-80, -50, -20),
gp_Pnt(-30, -60, -60))
V1 = BRepBuilderAPI_MakeVertex(gp_Pnt(-20, 10, -30))
V2 = BRepBuilderAPI_MakeVertex(gp_Pnt(10, 7, -25))
YellowEdge = BRepBuilderAPI_MakeEdge(V1.Vertex(), V2.Vertex())
#The white edge
line = gp_Lin(gp_Ax1(gp_Pnt(10, 10, 10), gp_Dir(1, 0, 0)))
WhiteEdge = BRepBuilderAPI_MakeEdge(line, -20, 10)
#The red edge
Elips = gp_Elips(gp_Ax2(gp_Pnt(10, 0, 0), gp_Dir(1, 1, 1)), 60, 30)
RedEdge = BRepBuilderAPI_MakeEdge(Elips, 0, math.pi/2)
# The green edge and the both extreme vertex
P1 = gp_Pnt(-15, 200, 10)
P2 = gp_Pnt(5, 204, 0)
P3 = gp_Pnt(15, 200, 0)
P4 = gp_Pnt(-15, 20, 15)
P5 = gp_Pnt(-5, 20, 0)
P6 = gp_Pnt(15, 20, 0)
P7 = gp_Pnt(24, 120, 0)
P8 = gp_Pnt(-24, 120, 12.5)
array = TColgp_Array1OfPnt(1, 8)
array.SetValue(1, P1)
array.SetValue(2, P2)
array.SetValue(3, P3)
array.SetValue(4, P4)
array.SetValue(5, P5)
array.SetValue(6, P6)
array.SetValue(7, P7)
array.SetValue(8, P8)
curve = Geom_BezierCurve(array)
ME = BRepBuilderAPI_MakeEdge(curve.GetHandle())
GreenEdge = ME
V3 = ME.Vertex1()
V4 = ME.Vertex2()
display.DisplayColoredShape(BlueEdge.Edge(), 'BLUE')
display.DisplayShape(V1.Vertex())
display.DisplayShape(V2.Vertex())
display.DisplayColoredShape(WhiteEdge.Edge(), 'WHITE')
display.DisplayColoredShape(YellowEdge.Edge(), 'YELLOW')
display.DisplayColoredShape(RedEdge.Edge(), 'RED')
display.DisplayColoredShape(GreenEdge.Edge(), 'GREEN')
display.DisplayShape(V3)
display.DisplayShape(V4, update=True)
def reorient(self, z_target_axis):
# Note that needles are expected to lie along the z-axis with tip at the
# origin.
z_axis = [0, 0, 1]
rot_axis = N.cross(z_axis, z_target_axis)
if N.linalg.norm(rot_axis) > 1e-6:
rotation_axis = gp.gp_Ax1(self.origin, gp.gp_Dir(*rot_axis))
rotation_angle = N.arccos(N.dot(z_axis, z_target_axis) / (N.linalg.norm(z_axis) * N.linalg.norm(z_target_axis)))
transform = gp.gp_Trsf()
transform.SetRotation(rotation_axis, rotation_angle)
for i, needle in enumerate(self.shapes):
needle_transform = BRepTransform(needle, transform, False)
needle_transform.Build()
self.shapes[i] = needle_transform.Shape()
def rotate(self, startVector, endVector, angleDegrees):
"""
Rotates a shape around an axis
:param startVector: start point of rotation axis either a 3-tuple or a Vector
:param endVector: end point of rotation axis, either a 3-tuple or a Vector
:param angleDegrees: angle to rotate, in degrees
:return: a copy of the shape, rotated
"""
if type(startVector) == tuple:
startVector = Vector(startVector)
if type(endVector) == tuple:
endVector = Vector(endVector)
T = gp_Trsf()
T.SetRotation(
gp_Ax1(startVector.toPnt(), (endVector - startVector).toDir()),
angleDegrees)
return self._apply_transform(T)
def revolved_cut(base):
# Define 7 points
face_points = TColgp_Array1OfPnt(1, 7)
face_inner_radius = 0.6
pts = [
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius - 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius + 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
]
for n, i in enumerate(pts):
face_points.SetValue(n + 1, i)
# Use these points to create edges and add these edges to a wire
hexwire = BRepBuilderAPI_MakeWire()
for i in range(1, 7):
hexedge = BRepBuilderAPI_MakeEdge(face_points.Value(i),
face_points.Value(i + 1)).Edge()
hexwire.Add(hexedge)
# Turn the wire into a 6 sided face
hexface = BRepBuilderAPI_MakeFace(hexwire.Wire()).Face()
# Revolve the face around an axis
revolve_axis = gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1))
revolved_shape = BRepPrimAPI_MakeRevol(hexface, revolve_axis).Shape()
# Move the generated shape
move = gp_Trsf()
move.SetTranslation(gp_Pnt(0, 0, 0), gp_Pnt(0, 0, sin(0.5)))
moved_shape = BRepBuilderAPI_Transform(revolved_shape, move, False).Shape()
# Remove the revolved shape
cut = BRepAlgoAPI_Cut(base, moved_shape).Shape()
return cut
def make_spherical_lens2(CT1, CT2, diameter,
curvature1, curvature2,
centre, direction, x_axis):
cax = gp.gp_Ax2(gp.gp_Pnt(0,0,CT1-curvature1),
gp.gp_Dir(0,sign(curvature1),0),
gp.gp_Dir(1,0,0))
circ = Geom.Geom_Circle(cax, abs(curvature1))
h_circ = Geom.Handle_Geom_Circle(circ)
cax2 = gp.gp_Ax2(gp.gp_Pnt(0,0,CT2-curvature2),
gp.gp_Dir(0,-sign(curvature2),0),
gp.gp_Dir(1,0,0))
circ2 = Geom.Geom_Circle(cax2, abs(curvature2))
h_circ2 = Geom.Handle_Geom_Circle(circ2)
r = diameter/2.
h2 = CT1 - curvature1 + numpy.sqrt(curvature1**2 - r**2)*sign(curvature1)
h3 = CT2 - curvature2 + numpy.sqrt(curvature2**2 - r**2)*sign(curvature2)
p1 = gp.gp_Pnt(0,0,CT1)
p2 = gp.gp_Pnt(r,0,h2)
p3 = gp.gp_Pnt(r,0,h3)
p4 = gp.gp_Pnt(0,0,CT2)
e1 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(h_circ, p1, p2)
e2 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(p2,p3)
e3 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(h_circ2, p3,p4)
e4 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(p4,p1)
wire = BRepBuilderAPI.BRepBuilderAPI_MakeWire()
for e in (e1,e2,e3,e4):
print(e)
wire.Add(e.Edge())
face = BRepBuilderAPI.BRepBuilderAPI_MakeFace(wire.Wire())
ax = gp.gp_Ax1(gp.gp_Pnt(0,0,0),
gp.gp_Dir(0,0,1))
solid = BRepPrimAPI.BRepPrimAPI_MakeRevol(face.Shape(), ax)
return position_shape(toshape(solid), centre, direction, x_axis)
def revolved_cut(base):
# Define 7 points
face_points = TColgp_Array1OfPnt(1, 7)
face_inner_radius = 0.6
pts = [
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius - 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius + 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
]
for n, i in enumerate(pts):
face_points.SetValue(n + 1, i)
# Use these points to create edges and add these edges to a wire
hexwire = BRepBuilderAPI_MakeWire()
for i in range(1, 7):
hexedge = BRepBuilderAPI_MakeEdge(face_points.Value(i), face_points.Value(i + 1)).Edge()
hexwire.Add(hexedge)
# Turn the wire into a 6 sided face
hexface = BRepBuilderAPI_MakeFace(hexwire.Wire()).Face()
# Revolve the face around an axis
revolve_axis = gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1))
revolved_shape = BRepPrimAPI_MakeRevol(hexface, revolve_axis).Shape()
# Move the generated shape
move = gp_Trsf()
move.SetTranslation(gp_Pnt(0, 0, 0), gp_Pnt(0, 0, sin(0.5)))
moved_shape = BRepBuilderAPI_Transform(revolved_shape, move, False).Shape()
# Remove the revolved shape
cut = BRepAlgoAPI_Cut(base, moved_shape).Shape()
return cut
def revolved_shape():
""" demonstrate how to create a revolved shape from an edge
adapted from algotopia.com's opencascade_basic tutorial:
http://www.algotopia.com/contents/opencascade/opencascade_basic
"""
face_inner_radius = 0.6
# point to create an edge from
edg_points = [
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius - 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius + 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
]
# aggregate edges in wire
hexwire = BRepBuilderAPI_MakeWire()
for i in range(6):
hexedge = BRepBuilderAPI_MakeEdge(edg_points[i],
edg_points[i + 1]).Edge()
hexwire.Add(hexedge)
hexwire_wire = hexwire.Wire()
# face from wire
hexface = BRepBuilderAPI_MakeFace(hexwire_wire).Face()
revolve_axis = gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1))
# create revolved shape
revolved_shape_ = BRepPrimAPI_MakeRevol(hexface, revolve_axis,
math.radians(90.)).Shape()
# render wire & revolved shape
display.DisplayShape([revolved_shape_, hexwire_wire])
display.FitAll()
start_display()
def calc_intersection(terrain_intersection_curves, edges_coords, edges_dir):
"""
This script calculates the intersection of the building edges to the terrain,
:param terrain_intersection_curves:
:param edges_coords:
:param edges_dir:
:return: intersecting points, intersecting faces
"""
building_line = gp_Lin(
gp_Ax1(gp_Pnt(edges_coords[0], edges_coords[1], edges_coords[2]),
gp_Dir(edges_dir[0], edges_dir[1], edges_dir[2])))
terrain_intersection_curves.PerformNearest(building_line, 0.0,
float("+inf"))
if terrain_intersection_curves.IsDone():
npts = terrain_intersection_curves.NbPnt()
if npts != 0:
return terrain_intersection_curves.Pnt(
1), terrain_intersection_curves.Face(1)
else:
return None, None
else:
return None, None
def intersect_shape_with_ptdir(occtopology, pypt, pydir):
"""
This function projects a point in a direction and calculates the at which point does the point intersects the OCCtopology.
Parameters
----------
occtopology : OCCtopology
The OCCtopology to be projected on.
OCCtopology includes: OCCshape, OCCcompound, OCCcompsolid, OCCsolid, OCCshell, OCCface, OCCwire, OCCedge, OCCvertex
pypt : tuple of floats
The point to be projected. A pypt is a tuple that documents the xyz coordinates of a pt e.g. (x,y,z)
pydir : tuple of floats
The direction of the point to be projected. A pydir is a tuple that documents the xyz vector of a dir e.g. (x,y,z)
Returns
-------
intersection point : pypt
The point in which the projected point intersect the OCCtopology. If None means there is no intersection.
intersection face : OCCface
The OCCface in which the projected point hits. If None means there is no intersection.
"""
occ_line = gp_Lin(
gp_Ax1(gp_Pnt(pypt[0], pypt[1], pypt[2]),
gp_Dir(pydir[0], pydir[1], pydir[2])))
shape_inter = IntCurvesFace_ShapeIntersector()
shape_inter.Load(occtopology, 1e-6)
shape_inter.PerformNearest(occ_line, 0.0, float("+inf"))
if shape_inter.IsDone():
npts = shape_inter.NbPnt()
if npts != 0:
return modify.occpt_2_pypt(shape_inter.Pnt(1)), shape_inter.Face(1)
else:
return None, None
else:
return None, None
def revolved_shape():
""" demonstrate how to create a revolved shape from an edge
adapted from algotopia.com's opencascade_basic tutorial:
http://www.algotopia.com/contents/opencascade/opencascade_basic
"""
face_inner_radius = 0.6
# point to create an edge from
edg_points = [
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius - 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, 0.025),
gp_Pnt(face_inner_radius + 0.10, 0.0, -0.025),
gp_Pnt(face_inner_radius + 0.05, 0.0, -0.05),
gp_Pnt(face_inner_radius - 0.05, 0.0, -0.05),
]
# aggregate edges in wire
hexwire = BRepBuilderAPI_MakeWire()
for i in range(6):
hexedge = BRepBuilderAPI_MakeEdge(edg_points[i], edg_points[i+1]).Edge()
hexwire.Add(hexedge)
hexwire_wire = hexwire.Wire()
# face from wire
hexface = BRepBuilderAPI_MakeFace(hexwire_wire).Face()
revolve_axis = gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1))
# create revolved shape
revolved_shape_ = BRepPrimAPI_MakeRevol(hexface, revolve_axis, math.radians(90.)).Shape()
# render wire & revolved shape
display.DisplayShape([revolved_shape_, hexwire_wire])
display.FitAll()
start_display()
def make_ellipsoid_2(focus1, focus2, major_axis):
f1 = numpy.asarray(focus1)
f2 = numpy.asarray(focus2)
direction = -(f1 - f2)
centre = (f1 + f2)/2.
sep = numpy.sqrt((direction**2).sum())
minor_axis = numpy.sqrt( major_axis**2 - (sep/2.)**2 )
el = gp.gp_Elips(gp.gp_Ax2(gp.gp_Pnt(0,0,0), gp.gp_Dir(1,0,0)),
major_axis, minor_axis)
edge1 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(el,
gp.gp_Pnt(0,0,major_axis),
gp.gp_Pnt(0,0,-major_axis))
edge2 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(gp.gp_Pnt(0,0,-major_axis),
gp.gp_Pnt(0,0,major_axis))
wire = BRepBuilderAPI.BRepBuilderAPI_MakeWire()
wire.Add(edge1.Edge())
wire.Add(edge2.Edge())
face = BRepBuilderAPI.BRepBuilderAPI_MakeFace(wire.Wire())
el = BRepPrimAPI.BRepPrimAPI_MakeRevol(face.Shape(),
gp.gp_Ax1(gp.gp_Pnt(0,0,0),
gp.gp_Dir(0,0,1)),
numpy.pi*2)
loc = gp.gp_Ax3()
loc.SetLocation(gp.gp_Pnt(*centre))
loc.SetDirection(gp.gp_Dir(*direction))
tr = gp.gp_Trsf()
tr.SetTransformation(loc, gp.gp_Ax3())
trans = BRepBuilderAPI.BRepBuilderAPI_Transform(el.Shape(), tr)
shape = toshape(trans)
return shape
def intersect_shape_with_ptdir(occtopology, pypt, pydir):
"""
This function projects a point in a direction and calculates the at which point does the point intersects the OCCtopology.
Parameters
----------
occtopology : OCCtopology
The OCCtopology to be projected on.
OCCtopology includes: OCCshape, OCCcompound, OCCcompsolid, OCCsolid, OCCshell, OCCface, OCCwire, OCCedge, OCCvertex
pypt : tuple of floats
The point to be projected. A pypt is a tuple that documents the xyz coordinates of a pt e.g. (x,y,z)
pydir : tuple of floats
The direction of the point to be projected. A pydir is a tuple that documents the xyz vector of a dir e.g. (x,y,z)
Returns
-------
intersection point : pypt
The point in which the projected point intersect the OCCtopology. If None means there is no intersection.
intersection face : OCCface
The OCCface in which the projected point hits. If None means there is no intersection.
"""
occ_line = gp_Lin(gp_Ax1(gp_Pnt(pypt[0], pypt[1], pypt[2]), gp_Dir(pydir[0], pydir[1], pydir[2])))
shape_inter = IntCurvesFace_ShapeIntersector()
shape_inter.Load(occtopology, 1e-6)
shape_inter.PerformNearest(occ_line, 0.0, float("+inf"))
if shape_inter.IsDone():
npts = shape_inter.NbPnt()
if npts !=0:
return modify.occpt_2_pypt(shape_inter.Pnt(1)), shape_inter.Face(1)
else:
return None, None
else:
return None, None
def make_spherical_lens(CT, diameter, curvature,
centre, direction, x_axis):
cax = gp.gp_Ax2(gp.gp_Pnt(0,0,CT-curvature),
gp.gp_Dir(0,1,0),
gp.gp_Dir(1,0,0))
circ = Geom.Geom_Circle(cax, curvature)
h_circ = Geom.Handle_Geom_Circle(circ)
r = diameter/2.
h2 = CT - curvature + numpy.sqrt(curvature**2 - r**2)
p1 = gp.gp_Pnt(0,0,CT)
p2 = gp.gp_Pnt(r,0,h2)
p3 = gp.gp_Pnt(r,0,0)
p4 = gp.gp_Pnt(0,0,0)
#ps = p1,p2,p3,p4
#vs = [BRepBuilderAPI.BRepBuilderAPI_MakeVertex(p) for p in ps]
e1 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(h_circ, p1,
p2)
e2 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(p2,p3)
e3 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(p3,p4)
e4 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(p4,p1)
wire = BRepBuilderAPI.BRepBuilderAPI_MakeWire()
for e in (e1,e2,e3,e4):
print(e)
wire.Add(e.Edge())
face = BRepBuilderAPI.BRepBuilderAPI_MakeFace(wire.Wire())
ax = gp.gp_Ax1(gp.gp_Pnt(0,0,0),
gp.gp_Dir(0,0,1))
solid = BRepPrimAPI.BRepPrimAPI_MakeRevol(face.Shape(), ax)
return position_shape(toshape(solid), centre, direction, x_axis)
def mirror(self, **kwargs):
"""
params (one of):
point def. mirror about point
axis
plane
"""
inValue=None
if 'point' in kwargs:
inValue = gp_Pnt(kwargs['point'])
elif 'axis' in kwargs:
inValue = gp_Ax1(gp_Pnt(*kwargs['axis'][:3]), gp_Dir(*kwargs['axis'][3:]))
elif 'plane' in kwargs:
inValue = gp_Ax2(gp_Pnt(*kwargs['axis'][:3]), gp_Dir(*kwargs['axis'][3:]))
else:
print "Warning: mirror could not be done becase there was no parameters specified"
return self
tr = gp_Trsf()
tr.SetMirror(inValue)
self.shape = BRepBuilderAPI_Transform(self.shape, tr).Shape()
self.__extract_curves()
return self
def rotate(occtopology, rot_pypt, pyaxis, degree):
"""
This function rotates an OCCtopology based on the rotation point, an axis and the rotation degree.
Parameters
----------
occtopology : OCCtopology
The OCCtopology to be rotated.
OCCtopology includes: OCCshape, OCCcompound, OCCcompsolid, OCCsolid, OCCshell, OCCface, OCCwire, OCCedge, OCCvertex
rot_pypt : tuple of floats
The OCCtopology will rotate in reference to this point.
A pypt is a tuple that documents the xyz coordinates of a pt e.g. (x,y,z)
pyaxis : tuple of floats
The OCCtopology will rotate along this axis.
A pyaxis is a tuple that documents the xyz of a direction e.g. (x,y,z)
degree : float
The degree of rotation.
Returns
-------
rotated topology : OCCtopology (OCCshape)
The rotated OCCtopology.
"""
from math import radians
gp_ax3 = gp_Ax1(gp_Pnt(rot_pypt[0], rot_pypt[1], rot_pypt[2]),
gp_Dir(pyaxis[0], pyaxis[1], pyaxis[2]))
aTrsf = gp_Trsf()
aTrsf.SetRotation(gp_ax3, radians(degree))
rot_brep = BRepBuilderAPI_Transform(aTrsf)
rot_brep.Perform(occtopology, True)
rot_shape = rot_brep.Shape()
return rot_shape
def transonic_airliner(display=None,
Propulsion=1,
EngineDia=2.9,
FuselageScaling=[55.902, 55.902, 55.902],
NoseLengthRatio=0.182,
TailLengthRatio=0.293,
WingScaleFactor=44.56,
WingChordFactor=1.0,
Topology=1,
SpanStation1=0.35,
SpanStation2=0.675,
EngineCtrBelowLE=0.3558,
EngineCtrFwdOfLE=0.9837,
Scarf_deg=3):
"""
Parameters
----------
Propulsion - int
1 - twin
2 - quad
EngineDia - float
Diameter of engine intake highlight
FuselageScaling - list, length 3
Fx, Fy, Fz scaling factors of fuselage
NoseLengthRatio - scalar
Proportion of forward tapering section of the fuselage
TailLengthRatio - scalar
Proportion of aft tapering section of the fuselage
WingScaleFactor - scalar
Scale Factor of the main wing
WingChordFactor - scalar
Chord factor of the main wing
Topology - int
Topology = 2 should yield a box wing airliner - use with caution
SpanStation - float
Inboard engine at this span station
SpanStation2 - float
Outboard engine at this span station (ignored if Propulsion=1)
EngineCtrBelowLE - float
Engine below leading edge, normalised by the length of the nacelle -
range: [0.35,0.5]
EngineCtrFwdOfLE - float
Engine forward of leading edge, normalised by the length of the nacelle
range: [0.85,1.5]
Scarf_deg - scalar # Engine scarf angle
Returns
-------
airliner - 'Aircraft' class instance
The collection of aircraft parts
See also
--------
class Aircraft
"""
try:
Fus = fuselage_oml.Fuselage(NoseLengthRatio, TailLengthRatio,
Scaling=FuselageScaling,
NoseCoordinates=[0, 0, 0])
except:
print "Fuselage fitting failed - stopping."
return None
FuselageHeight = FuselageScaling[2]*0.105
FuselageLength = FuselageScaling[0]
FuselageWidth = FuselageScaling[1]*0.106
if Fus['OML'] is None:
print "Failed to fit fuselage surface, stopping."
return None
# FSurf = rs.CopyObject(FuselageOMLSurf)
# Position of the apex of the wing
if FuselageHeight < 8.0:
#787:[9.77,0,-0.307]
WingApex = [0.1748*FuselageLength,0,-0.0523*FuselageHeight]
else:
WingApex = [0.1748*FuselageLength,0,-0.1*FuselageHeight] #787:[9.77,0,-0.307]
# Set up the wing object, including the list of user-defined functions that
# describe the spanwise variations of sweep, dihedral, etc.
if Topology == 1:
NSeg = 10
Wing = liftingsurface.LiftingSurface(WingApex,
mySweepAngleFunctionAirliner,
myDihedralFunctionAirliner,
myTwistFunctionAirliner,
myChordFunctionAirliner,
myAirfoilFunctionAirliner,
SegmentNo=NSeg,
ScaleFactor=WingScaleFactor,
ChordFactor=WingChordFactor)
RootChord = Wing.RootChord
elif Topology == 2:
NSeg = 101
Wing = liftingsurface.LiftingSurface(WingApex,
mySweepAngleFunctionAirliner,
bw.myDihedralFunctionBoxWing,
myTwistFunctionAirliner,
myChordFunctionAirliner,
myAirfoilFunctionAirliner,
SegmentNo=NSeg,
ScaleFactor=WingScaleFactor,
ChordFactor=WingChordFactor)
RootChord = Wing.RootChord
if Topology == 1:
# Add wing to body fairing
WTBFXCentre = WingApex[0] + RootChord/2.0 + RootChord*0.1297 # 787: 23.8
if FuselageHeight < 8.0:
#Note: I made changes to this in OCC Airconics to get a better fit
# - Paul
WTBFZ = RootChord*0.009 #787: 0.2
WTBFheight = 1.8*0.1212*RootChord #787:2.7
WTBFwidth = 1.08*FuselageWidth
else:
WTBFZ = WingApex[2] + 0.005*RootChord
WTBFheight = 0.09*RootChord
WTBFwidth = 1.15*FuselageWidth
WTBFlength = 1.167*RootChord #787:26
WBF_shape = act.make_ellipsoid([WTBFXCentre, 0, WTBFZ], WTBFlength,
WTBFwidth, WTBFheight)
WBF = AirconicsShape(components={'WBF': WBF_shape})
# Trim wing inboard section
CutCirc = act.make_circle3pt([0,WTBFwidth/4.,-45], [0,WTBFwidth/4.,45], [90,WTBFwidth/4.,0])
CutCircDisk = act.PlanarSurf(CutCirc)
Wing['Surface'] = act.TrimShapebyPlane(Wing['Surface'], CutCircDisk)
elif Topology == 2:
# Overlapping wing tips
CutCirc = act.make_circle3pt((0,0,-45), (0,0,45), (90,0,0))
CutCircDisk = act.PlanarSurf(CutCirc)
Wing['Surface'] = act.TrimShapebyPlane(Wing['Surface'], CutCircDisk)
# Engine installation (nacelle and pylon)
NacelleLength = 1.95*EngineDia
if Propulsion == 1:
SpanStations = [SpanStation1]
elif Propulsion == 2:
SpanStations = [SpanStation1, SpanStation2]
engines = []
for i, SpanStation in enumerate(SpanStations):
EngineSection, Chord = act.CutSect(Wing['Surface'], SpanStation)
CEP = Chord.EndPoint()
Centreloc = [CEP.X()-EngineCtrFwdOfLE*NacelleLength,
CEP.Y(),
CEP.Z()-EngineCtrBelowLE*NacelleLength]
eng = engine.Engine(Chord,
CentreLocation=Centreloc,
ScarfAngle=Scarf_deg,
HighlightRadius=EngineDia/2.0,
MeanNacelleLength = NacelleLength)
engines.append(eng)
# # Script for generating and positioning the fin
# # Position of the apex of the fin
P = [0.6524*FuselageLength,0.003,FuselageHeight*0.384]
#P = [36.47,0.003,2.254]55.902
if Topology == 1:
ScaleFactor = WingScaleFactor/2.032 #787:21.93
elif Topology == 2:
ScaleFactor = WingScaleFactor/3.5
SegmentNo = 100
ChordFactor = 1.01#787:1.01
Fin = liftingsurface.LiftingSurface(P, mySweepAngleFunctionFin,
myDihedralFunctionFin,
myTwistFunctionFin,
myChordFunctionFin,
myAirfoilFunctionFin,
SegmentNo=SegmentNo,
ChordFactor=ChordFactor,
ScaleFactor=ScaleFactor)
# Create the rotation axis centered at the apex point in the x direction
RotAxis = gp_Ax1(gp_Pnt(*P), gp_Dir(1, 0, 0))
Fin.RotateComponents(RotAxis, 90)
if Topology == 1:
# Tailplane
P = [0.7692*FuselageLength,0.000,FuselageHeight*0.29]
SegmentNo = 100
ChordFactor = 1.01
ScaleFactor = 0.388*WingScaleFactor #787:17.3
TP = liftingsurface.LiftingSurface(P,
mySweepAngleFunctionTP,
myDihedralFunctionTP,
myTwistFunctionTP,
myChordFunctionTP,
myAirfoilFunctionTP,
SegmentNo=SegmentNo,
ChordFactor=ChordFactor,
ScaleFactor=ScaleFactor)
# OCC_AirCONICS Note: Nothing below here implemented in OCC_AirCONICS - See
# Rhino version for this functionality (largely for display only)
#
# rs.DeleteObjects([EngineSection, Chord])
# try:
# rs.DeleteObjects([CutCirc])
# except:
# pass
#
# try:
# rs.DeleteObjects([CutCircDisk])
# except:
# pass
#
# # Windows
#
# # Cockpit windows:
CockpitWindowTop = 0.305*FuselageHeight
print("Making Fuselage Windows...")
# solids = Fus.CockpitWindowContours(Height=CockpitWindowTop, Depth=6)
#
## Cut the windows out:
# for solid in solids:
# Fus['OML'] = act.SplitShape(Fus['OML'], solid)
#
#
# print("Cockpit Windows Done.")
##
## (Xmin,Ymin,Zmin,Xmax,Ymax,Zmax) = act.ObjectsExtents([Win1, Win2, Win3, Win4])
CockpitBulkheadX = NoseLengthRatio*FuselageLength*0.9
##
## CockpitWallPlane = rs.PlaneFromPoints([CockpitBulkheadX, -15,-15],
## [CockpitBulkheadX,15,-15],
## [CockpitBulkheadX,-15,15])
##
## CockpitWall = rs.AddPlaneSurface(CockpitWallPlane, 30, 30)
##
## if 'WTBF' in locals():
## rs.TrimBrep(WTBF, CockpitWall)
##
## rs.DeleteObject(CockpitWall)
#
## # Window lines
WIN = [1]
NOWIN = [0]
##
### # A typical window pattern (including emergency exit windows)
WinVec = WIN + 2*NOWIN + 9*WIN + 3*NOWIN + WIN + NOWIN + 24*WIN + 2*NOWIN + WIN + NOWIN + 14*WIN + 2*NOWIN + WIN + 20*WIN + 2*NOWIN + WIN + NOWIN + 20*WIN
wires = []
if FuselageHeight < 8.0:
### # Single deck
WindowLineHeight = 0.3555*FuselageHeight
WinX = 0.1157*FuselageLength
WindowPitch = 0.609
WinInd = -1
i = 0
while WinX < 0.75*FuselageLength:
WinInd = WinInd + 1
if WinVec[WinInd] == 1 and WinX > CockpitBulkheadX:
i=i+1
print("Generating cabin window {}".format(i))
WinCenter = [WinX, WindowLineHeight]
W_wire = Fus.WindowContour(WinCenter)
wires.append(W_wire)
# display.DisplayShape(W_wire, color='black')
# win_port, win_stbd = Fus.MakeWindow(*WinCenter)
# print(type(win_port), type(win_stbd))
#
# display.DisplayShape(win_port, color='Black')
# display.DisplayShape(win_stbd, color='Black')
#
### Note: Need to fix makewindow to return windows WinStbd,
## # WinPort,
# Fus.MakeWindow(WinX, WindowLineHeight)
### act.AssignMaterial(WinStbd,"Plexiglass")
### act.AssignMaterial(WinPort,"Plexiglass")
WinX = WinX + WindowPitch
#
# print("Cabin windows done")
# else:
# # TODO: Fuselage big enough to accommodate two decks
# # Lower deck
# WindowLineHeight = 0.17*FuselageHeight #0.166
# WinX = 0.1*FuselageLength #0.112
# WindowPitch = 0.609
# WinInd = 0
# while WinX < 0.757*FuselageLength:
# WinInd = WinInd + 1
# if WinVec[WinInd] == 1 and WinX > CockpitBulkheadX:
# WinStbd, WinPort, FuselageOMLSurf = fuselage_oml.MakeWindow(FuselageOMLSurf, WinX, WindowLineHeight)
# act.AssignMaterial(WinStbd,"Plexiglass")
# act.AssignMaterial(WinPort,"Plexiglass")
# WinX = WinX + WindowPitch
# # Upper deck
# WindowLineHeight = 0.49*FuselageHeight
# WinX = 0.174*FuselageLength #0.184
# WinInd = 0
# while WinX < 0.757*FuselageLength:
# WinInd = WinInd + 1
# if WinVec[WinInd] == 1 and WinX > CockpitBulkheadX:
# WinStbd, WinPort, FuselageOMLSurf = fuselage_oml.MakeWindow(FuselageOMLSurf, WinX, WindowLineHeight)
# act.AssignMaterial(WinStbd,"Plexiglass")
# act.AssignMaterial(WinPort,"Plexiglass")
# WinX = WinX + WindowPitch
#
#
#
#
#
# act.AssignMaterial(FuselageOMLSurf,"White_composite_external")
# act.AssignMaterial(WingSurf,"White_composite_external")
# try:
# act.AssignMaterial(TPSurf,"ShinyBARedMetal")
# except:
# pass
# act.AssignMaterial(FinSurf,"ShinyBARedMetal")
# act.AssignMaterial(Win1,"Plexiglass")
# act.AssignMaterial(Win2,"Plexiglass")
# act.AssignMaterial(Win3,"Plexiglass")
# act.AssignMaterial(Win4,"Plexiglass")
#
#
# # Mirror the geometry as required
Wing2 = Wing.MirrorComponents(plane='xz')
try:
# this try section allows box wing i.e. no tailplane
TP2 = TP.MirrorComponents(plane='xz')
except:
pass
engines_left = []
for eng in engines:
engines_left.append(eng.MirrorComponents(plane='xz'))
# if Propulsion == 1:
# for ObjId in EngineStbd:
# act.MirrorObjectXZ(ObjId)
# act.MirrorObjectXZ(PylonStbd)
# elif Propulsion == 2:
# raise NotImplementedError
# for ObjId in EngineStbd1:
# act.MirrorObjectXZ(ObjId)
# act.MirrorObjectXZ(PylonStbd1)
# for ObjId in EngineStbd2:
# act.MirrorObjectXZ(ObjId)
# act.MirrorObjectXZ(PylonStbd2)
# Build the return assembly (could change this later based on input 'tree':
airliner = AirconicsCollection(parts={'Wing_right': Wing,
'Wing_left': Wing2,
'Fuselage': Fus,
'Fin': Fin,
'Tailplane_right': TP,
'Tailplane_left': TP2,
'WBF': WBF})
# Loop over the engines and write all components:
for i, eng in enumerate(engines):
name = 'engine_right' + str(i+1)
airliner.AddPart(eng, name)
for i, eng in enumerate(engines_left):
name = 'engine_left' + str(i+1)
airliner.AddPart(eng, name)
return airliner, wires
pz = -1*(pxy[0]**2/(2*r_z) + pxy[1]**2/(2*r_z))
pln = surf_spl(*pxy, pz, axs)
wxy = Geom_Ellipse (ax2, w_z, w_z).Elips()
wxy = BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge (wxy).Edge()).Wire()
print (wxy, pln)
api.AddWire(wxy)
display.DisplayShape (pnt)
display.DisplayShape (pln)
display.DisplayShape (wxy)
api.Build()
surf_wxy = api.Shape()
display.DisplayShape(surf_wxy)
pnt = gp_Pnt (0, 0, 500)
axs = gp_Ax3 (pnt, gp_Dir(0, 0, 1))
axs.Rotate(gp_Ax1(axs.Location(), axs.XDirection()), np.deg2rad(5))
axs.Rotate(gp_Ax1(axs.Location(), axs.YDirection()), np.deg2rad(30))
ax2 = axs.Ax2()
px = np.linspace(-1, 1, 100) * 100
py = np.linspace(-1, 1, 100) * 100
mesh = np.meshgrid (px, py)
surf = mesh[0]**2/1000 + mesh[1]**2/1000
#pln = make_plane (axs.Location(), dir_to_vec(axs.Direction()))
pln = surf_spl(*mesh, surf, axs)
display.DisplayShape (pln)
#print (TopoDS_Face(pln))
print (surf_wxy, pln)
for face in Topo(surf_wxy).faces():
surf_wxy = BRep_Tool.Surface(face).GetObject()
for face in Topo(pln).faces():
parser.add_option("--surf", dest="surf", default="surf2")
parser.add_option("--pxyz",
dest="pxyz",
default=(0, 0, 0),
type="float",
nargs=3)
parser.add_option("--rxyz",
dest="rxyz",
default=(0, 0, 0),
type="float",
nargs=3)
opt, argc = parser.parse_args(argvs)
print(argc, opt)
filename = opt.dir + opt.refe + ".cor"
ax = get_axs(filename)
print(dir_to_vec(ax.Direction()), ax.Location())
ax.Translate(gp_Vec(gp_Pnt(), gp_Pnt(*opt.pxyz)))
for i, deg in enumerate(opt.rxyz):
if i == 0:
axs = gp_Ax1(ax.Location(), ax.XDirection())
elif i == 1:
axs = gp_Ax1(ax.Location(), ax.YDirection())
elif i == 2:
axs = gp_Ax1(ax.Location(), ax.Direction())
else:
axs = gp_Ax1(ax.Location(), ax.Direction())
ax.Rotate(axs, np.deg2rad(deg))
print(dir_to_vec(ax.Direction()), ax.Location())
occ_to_grasp_cor(ax, opt.surf, opt.out + opt.surf + ".cor")
def rotate(shape, rot_pt, axis, degree):
gp_ax3 = gp_Ax1(gp_Pnt(rot_pt[0], rot_pt[1], rot_pt[2]),
gp_Dir(axis[0], axis[1], axis[2]))
rot_shape = Construct.rotate(shape, gp_ax3, degree, copy=False)
return rot_shape
from OCC.BRepLib import breplib_BuildCurves3d
from OCC.GC import GC_MakeArcOfEllipse
from OCC.Geom import Geom_BezierCurve, Geom_BSplineCurve
from OCC.gp import gp_Dir, gp_Pnt, gp_Circ, gp_Elips, gp_Ax1, gp_Ax2, gp_Trsf
from OCC.TColgp import TColgp_Array1OfPnt
from OCC.TopoDS import TopoDS_Shape, TopoDS_Compound, topods
from .occ_shape import OccShape
from ..draw import ProxySvg
from declaracad.core.utils import log
Z_DIR = gp_Dir(0, 0, 1)
NEG_Z_DIR = gp_Dir(0, 0, -1)
Z_AXIS = gp_Ax1(gp_Pnt(0, 0, 0), Z_DIR)
UNITS = {
'in': 90.0, 'pt': 1.25, 'px': 1, 'mm': 3.5433070866,
'cm': 35.433070866, 'm': 3543.3070866,
'km': 3543307.0866, 'pc': 15.0, 'yd': 3240, 'ft': 1080
}
# From simplepath.py's parsePath by Aaron Spike, [email protected]
PATHDEFS = {
'M': ['L', 2, [float, float], ['x', 'y']],
'L': ['L', 2, [float, float], ['x', 'y']],
'H': ['H', 1, [float], ['x']],
'V': ['V', 1, [float], ['y']],
'C': ['C', 6, [float, float, float, float, float, float],
['x', 'y', 'x', 'y', 'x', 'y']],
def show_line(self, origin=(0, 0, 0), direction=(0, 0, 1)):
line_placement = Geom_Line(gp_Ax1(gp_Pnt(*origin), gp_Dir(*direction)))
line = AIS_Line(line_placement.GetHandle())
self._display_ais(line)
if __name__ == '__main__':
argvs = sys.argv
parser = OptionParser()
parser.add_option("--px", dest="px", default=0.0, type="float")
parser.add_option("--dx", dest="dx", default=0.0, type="float")
parser.add_option("--py", dest="py", default=0.0, type="float")
parser.add_option("--dy", dest="dy", default=0.0, type="float")
opt, argc = parser.parse_args(argvs)
ax, pln = def_ax(0, 0, 0, lx=100, ly=100)
m1_ax, m1_pln = def_ax(0, 0, 470, dx=-45)
m2_ax, m2_pln = def_ax(0, -250, 470, dx=45, dy=180)
wg_ax, wg_pln = def_ax(0, -250, 470 + 360, lx=100, ly=100, dy=0)
ax0 = gp_Ax3(gp_Pnt(opt.px, opt.py, 0), gp_Dir(0, 0, 1), gp_Dir(1, 0, 0))
rot_axs(ax0, gp_Ax1(ax0.Location(), ax0.XDirection()), opt.dx)
rot_axs(ax0, gp_Ax1(ax0.Location(), ax0.YDirection()), opt.dy)
pnt = ax0.Location()
vec = dir_to_vec(ax0.Direction())
m1_pnt, m1_vec = reflect(pnt, vec, m1_ax)
m2_pnt, m2_vec = reflect(m1_pnt, m1_vec, m2_ax)
wg_pnt, wg_vec = reflect(m2_pnt, m2_vec, wg_ax)
wg_vec.Reverse()
wg_p = wg_ax.Location()
print(np.rad2deg(get_angle(wg_ax, wg_vec, dir_to_vec(wg_ax.Direction()))))
print(wg_pnt.X() - wg_p.X(), wg_pnt.Y() - wg_p.Y())
"""
display, start_display, add_menu, add_function_to_menu = init_display()
display.DisplayShape (pnt)
display.DisplayShape (pln)
def list_wire_combo(num_cell, ang, offset, radius):
'''
input
nc: int, number of cells to be combined
ang: float, angle between adjaent cells
offset: float, offset angle of start position
ri: float, radius of this ring
output
wlist: {TopoDS_Wire: string}
combo_name: ''
'''
combo_name = ''
pos_list = list(range(num_cell))
wlist = {}
pos_len_name = {}
while len(pos_list) > 0:
# 1 choose a random location
pos = random.choice(pos_list)
# 2 choose a random length
len_seq = len_seq_natural(pos, pos_list)
len_seq = random.randrange(1, len_seq + 1)
# 3 choose a random shape
func = random.choice(FLIST)
# print(pos_list, pos, l, fname[FLIST.index(func)])
trsf_scale = gp_Trsf()
trsf_scale.SetScale(DRAIN_RCS.Location(), DRAIN_S)
trsf_trans = gp_Trsf()
trans_vec = gp_Vec(DRAIN_RCS.XDirection()) * radius
trsf_trans.SetTranslation(trans_vec)
trsf_rotate = gp_Trsf()
trsf_rotate.SetRotation(
gp_Ax1(DRAIN_RCS.Location(), DRAIN_RCS.Direction()),
offset + pos * ang)
if func == wire_sweep_circle and len_seq > 1:
cir1 = DRAIN_RCS.Location()
cir2 = DRAIN_RCS.Location()
cir1.Translate(trans_vec)
cir1.Rotate(gp_Ax1(DRAIN_RCS.Location(), DRAIN_RCS.Direction()),
offset + pos * ang)
cir2.Translate(trans_vec)
cir2.Rotate(gp_Ax1(DRAIN_RCS.Location(), DRAIN_RCS.Direction()),
offset + (pos + len_seq - 1) * ang)
wire = wire_sweep_circle(cir1, cir2)
elif func != wire_sweep_circle and len_seq == 1:
wire = func()
bresp_trsf = BRepBuilderAPI_Transform(wire, trsf_scale)
wire = topods.Wire(bresp_trsf.Shape())
bresp_trsf = BRepBuilderAPI_Transform(wire, trsf_trans)
wire = topods.Wire(bresp_trsf.Shape())
bresp_trsf = BRepBuilderAPI_Transform(wire, trsf_rotate)
wire = topods.Wire(bresp_trsf.Shape())
else:
continue
wname = SKETCH_TYPE[FLIST.index(func)]
pos_len_name[pos] = (len_seq, wname)
wlist[wire] = wname
for pos in range(pos, pos + len_seq):
pos_list.remove(pos)
pos_len_name = sorted(pos_len_name.items(), key=lambda t: t[0])
for pos in pos_len_name:
combo_name += str(pos[1][0]) + '[' + pos[1][1] + ']'
return wlist, combo_name
def compute_inertia_and_center_of_mass(shapes, io=None):
"""
Compute inertia from a list of Shapes.
"""
from OCC.GProp import GProp_GProps
from OCC.BRepGProp import brepgprop_VolumeProperties
from OCC.gp import gp_Ax1, gp_Dir
from siconos.mechanics import occ
system = GProp_GProps()
for shape in shapes:
iprops = GProp_GProps()
if shape.data is None:
if io is not None:
shape.data = io._shape.get(shape.shape_name, new_instance=True)
else:
warn('cannot get shape {0}'.format(shape.shape_name))
return None
iishape = shape.data
ishape = occ.OccContactShape(iishape).data()
# the shape relative displacement
occ.occ_move(ishape, list(shape.translation) +
list(shape.orientation))
brepgprop_VolumeProperties(iishape, iprops)
density = None
if hasattr(shape, 'mass') and shape.mass is not None:
density = shape.mass / iprops.Mass()
elif shape.parameters is not None and \
hasattr(shape.parameters, 'density'):
density = shape.parameters.density
#print('shape.parameters.density:', shape.parameters.density)
else:
density = 1.
assert density is not None
# print("shape", shape.shape_name)
# print('density:', density)
# print('iprops.Mass():', iprops.Mass())
system.Add(iprops, density)
mass= system.Mass()
assert (system.Mass() > 0.)
computed_com = system.CentreOfMass()
gp_mat= system.MatrixOfInertia()
inertia_matrix = np.zeros((3,3))
for i in range(0,3):
for j in range(0,3):
inertia_matrix[i,j]= gp_mat.Value(i+1,j+1)
I1 = system.MomentOfInertia(
gp_Ax1(computed_com, gp_Dir(1, 0, 0)))
I2 = system.MomentOfInertia(
gp_Ax1(computed_com, gp_Dir(0, 1, 0)))
I3 = system.MomentOfInertia(
gp_Ax1(computed_com, gp_Dir(0, 0, 1)))
inertia = [I1, I2, I3]
center_of_mass = np.array([computed_com.Coord(1),
computed_com.Coord(2),
computed_com.Coord(3)])
return mass, center_of_mass, inertia, inertia_matrix
def compute_inertia_and_center_of_mass(shapes, mass, io=None):
"""
Compute inertia from a list of Shapes.
"""
from OCC.GProp import GProp_GProps
from OCC.BRepGProp import brepgprop_VolumeProperties
from OCC.gp import gp_Ax1, gp_Dir
from siconos.mechanics import occ
props = GProp_GProps()
for shape in shapes:
iprops = GProp_GProps()
if shape.data is None:
if io is not None:
shape.data = io._shape.get(shape.shape_name, new_instance=True)
else:
warn('cannot get shape {0}'.format(shape.shape_name))
return None
iishape = shape.data
ishape = occ.OccContactShape(iishape).data()
# the shape relative displacement
occ.occ_move(ishape, list(shape.translation) + list(shape.orientation))
brepgprop_VolumeProperties(iishape, iprops)
density = None
if hasattr(shape, 'mass') and shape.mass is not None:
density = shape.mass / iprops.Mass()
elif shape.parameters is not None and \
hasattr(shape.parameters, 'density'):
density = shape.parameters.density
else:
density = 1.
assert density is not None
props.Add(iprops, density)
assert (props.Mass() > 0.)
global_density = mass / props.Mass()
computed_com = props.CentreOfMass()
I1 = global_density * props.MomentOfInertia(
gp_Ax1(computed_com, gp_Dir(1, 0, 0)))
I2 = global_density * props.MomentOfInertia(
gp_Ax1(computed_com, gp_Dir(0, 1, 0)))
I3 = global_density * props.MomentOfInertia(
gp_Ax1(computed_com, gp_Dir(0, 0, 1)))
inertia = [I1, I2, I3]
center_of_mass = np.array(
[computed_com.Coord(1),
computed_com.Coord(2),
computed_com.Coord(3)])
return inertia, center_of_mass
# original implementation with occ backend
import siconos.io.mechanics_io
siconos.io.mechanics_io.set_implementation('original')
siconos.io.mechanics_io.set_backend('occ')
# ball shape
ball = BRepPrimAPI_MakeSphere(.15).Shape()
ball_props = GProp_GProps()
brepgprop_VolumeProperties(ball, ball_props)
ball_mass = ball_props.Mass()
ball_com = ball_props.CentreOfMass()
ball_inertia = ball_props.MatrixOfInertia()
ball_I1 = ball_props.MomentOfInertia(gp_Ax1(ball_com, gp_Dir(1, 0, 0)))
ball_I2 = ball_props.MomentOfInertia(gp_Ax1(ball_com, gp_Dir(0, 1, 0)))
ball_I3 = ball_props.MomentOfInertia(gp_Ax1(ball_com, gp_Dir(0, 0, 1)))
print 'ball mass:', ball_mass
print 'ball center of mass:', (ball_com.Coord(1), ball_com.Coord(2),
ball_com.Coord(3))
print 'ball moment of inertia:', (ball_I1, ball_I2, ball_I3)
# the ground
ground = BRepPrimAPI_MakeBox(gp_Pnt(-20, -20, 0), 40., 40., .5).Shape()
# bowl shape
hspherei = BRepPrimAPI_MakeSphere(.9, pi).Shape()
hsphereo = BRepPrimAPI_MakeSphere(1., pi).Shape()
bowl = BRepAlgoAPI_Cut(hsphereo, hspherei).Shape()
def track_render(display):
display.EraseAll()
ais_boxshp = build_shape(display)
ax1 = gp_Ax1(gp_Pnt(25, 25, 25), gp_Dir(0., 0., 1.))
aCubeTrsf = gp_Trsf()
angle = 0.0
tA = time.time()
use_raw_image = True #don't do any processing on the image from the webcam before sending it to the face recog algo
#cascPathLeft = '/Applications/opencv-2.4.9/data/haarcascades/haarcascade_lefteye_2splits.xml'
#cascPathLeft = '/Applications/opencv-2.4.9/data/haarcascades/haarcascade_frontalface_default.xml'
cascPathFace = '/Applications/opencv-2.4.9/data/haarcascades/haarcascade_frontalface_default.xml'
cascPathLeft = '/Applications/opencv-2.4.9/data/haarcascades/haarcascade_mcs_lefteye.xml'
cascPathRight = '/Applications/opencv-2.4.9/data/haarcascades/haarcascade_mcs_righteye.xml'
cascPath = [cascPathFace]
cascade =[]
for i in xrange(len(cascPath)):
cascade += [cv2.CascadeClassifier(cascPath[i])]
video_capture = cv2.VideoCapture(0)
angle = 0.0
while True:
# Capture frame-by-frame
if use_raw_image:
ret, frame = video_capture.read()
gray2 = frame
else:
ret, frame = video_capture.read()
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
#gray2 = cv2.equalizeHist(gray)
#remove saturated regions from the image... this helps if the subject is underlit
#a = np.array(np.random.randint(200,245, (gray.shape[0], gray.shape[1])),dtype=np.uint8)
gray = gray*(gray<200) #+ a*(gray>=245)
#gray2 = gray*(gray<150) #+ a*(gray>=245)
gray2 = cv2.equalizeHist(gray)
all_faces = []
for i in xrange(len(cascade)):
'''
faces = cascade[i].detectMultiScale(
gray2,
scaleFactor=4.0,
minNeighbors=5,
minSize=(20, 20),
flags=cv2.cv.CV_HAAR_SCALE_IMAGE
)
'''
faces = cascade[i].detectMultiScale(
gray2,
scaleFactor=1.1,
minNeighbors=5,
minSize=(30, 30),
flags=cv2.cv.CV_HAAR_SCALE_IMAGE
)
all_faces += list(faces)
#print all_faces, len(all_faces)
print all_faces
size_largest =0
for f in all_faces:
if f[2]*f[3] > size_largest:
size_largest = f[2]*f[3]
face = f
'''
# Draw a rectangle around the faces
for (x, y, w, h) in faces:
cv2.rectangle(frame, (x, y), (x+w, y+h), (0, 255, 0), 2)
# Display the resulting frame
cv2.imshow('Video', gray2)
'''
aCubeTrsf.SetRotation(ax1, angle)
aCubeToploc = TopLoc_Location(aCubeTrsf)
display.Context.SetLocation(ais_boxshp, aCubeToploc)
display.Context.UpdateCurrentViewer()
try:
angle -= (face[0] - all_faces_prev[0])/300.0
except:
None
all_faces_prev = face
# Stop video capture
# in the opencv window (ie NOT in the terminal) hold down a key - you might have to hold it down a bit.
#print 'click in the opencv window and hold down a key to quit'
if cv2.waitKey(1) != -1:
break
# When everything is done, release the capture
video_capture.release()
cv2.destroyAllWindows()
video_capture.release()
def make_line(pypt, pydir):
occ_line = gp_Lin(
gp_Ax1(gp_Pnt(pypt[0], pypt[1], pypt[2]),
gp_Dir(pydir[0], pydir[1], pydir[2])))
return occ_line
def show_axis(self, origin=(0, 0, 0), direction=(0, 0, 1)):
ax_placement = Geom_Axis1Placement(
gp_Ax1(gp_Pnt(*origin), gp_Dir(*direction)))
ax = AIS_Axis(ax_placement.GetHandle())
self._display_ais(ax)
#!/usr/bin/python
# coding: utf-8
r"""test_revolve.py"
"""
from math import pi
from OCC import BRepPrimAPI, gp, BRepBuilderAPI
from viewer import view
el = gp.gp_Elips(gp.gp_Ax2(gp.gp_Pnt(0, 0, 0), gp.gp_Dir(1, 0, 0)), 20.0, 10.0)
edge1 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(el, gp.gp_Pnt(0, 0, 20),
gp.gp_Pnt(0, 0, -20))
edge2 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(gp.gp_Pnt(0, 0, -20),
gp.gp_Pnt(0, 0, 20))
wire = BRepBuilderAPI.BRepBuilderAPI_MakeWire()
wire.Add(edge1.Edge())
wire.Add(edge2.Edge())
face = BRepBuilderAPI.BRepBuilderAPI_MakeFace(wire.Wire())
el = BRepPrimAPI.BRepPrimAPI_MakeRevol(
face.Shape(), gp.gp_Ax1(gp.gp_Pnt(0, 0, 0), gp.gp_Dir(0, 0, 1)), pi * 2)
# h_curve = Geom.Handle_Geom_Ellipse(curve)
# rev = BRepPrimAPI.BRepPrimAPI_MakeRevolution(h_curve, 120.1)
# #nurbs = BRepBuilderAPI.BRepBuilderAPI_NurbsConvert(rev.Shape())
view(el.Shape())
def setTranslation(self):
"""
Creates an axis in x, y or z depending on user preference.
gp_Ax1 describes an axis in 3D space. An axis is defined by a point (gp_Pnt) and a direction (gp_Dir) reference
@return None
"""
if self._exceptionCatch():
return
rotataxis_index_combo = self.op_viewer.ui_shape_rotataxis_combo.currentIndex(
)
if self.op_viewer.ui_shape_rotataxis_combo.currentText() == "Z":
ax1 = gp_Ax1(gp_Pnt(0., 0., 0.), gp_Dir(0, 0, 1))
elif self.op_viewer.ui_shape_rotataxis_combo.currentText() == "Y":
ax1 = gp_Ax1(gp_Pnt(0., 0., 0.), gp_Dir(0, 1, 0))
elif self.op_viewer.ui_shape_rotataxis_combo.currentText() == "X":
ax1 = gp_Ax1(gp_Pnt(0., 0., 0.), gp_Dir(1, 0, 0))
# Retrieve the displacements set by user
x = float(self.op_viewer.ui_shape_xdispl_dspn.value())
y = float(self.op_viewer.ui_shape_ydispl_dspn.value())
z = float(self.op_viewer.ui_shape_zdispl_dspn.value())
teta = float(self.op_viewer.ui_shape_tetarotat_dspn.value()) * pi / 180
# creates objects of shape transformation (Returns the identity transformation),
# one for axial and other for x, y, z coordinates
transf_teta = gp_Trsf()
transf_xyz = gp_Trsf()
transf_teta.SetRotation(ax1, teta)
transf_xyz.SetTranslation(gp_Vec(x, y, z))
# Calculates the transformation matrix with respect of both transformations.
transf_matrix = transf_xyz * transf_teta
# Constructs an local coordinate system object. Note: A Location constructed from a default datum is said
# to be "empty".
# ref: https://www.opencascade.com/doc/occt-6.9.1/refman/html/class_top_loc___location.html
cube_toploc = TopLoc_Location(transf_matrix)
# Then applies the local coordinate to the current shape
for i in range(0, len(self.op_viewer.current_h_ais_shape)):
self.op_viewer.display.Context.SetLocation(
self.op_viewer.current_h_ais_shape[i], cube_toploc)
if self.op_viewer.selectionMode == "surf":
# If the selected items is the majority of the list, then the property is set to the whole Case
if self.op_viewer.ui_subcase_list.count() / 2 < len(
self.op_viewer.ui_subcase_list.selectedIndexes()):
self.op_viewer.case_node.setShapeTransformation(x, 0)
self.op_viewer.case_node.setShapeTransformation(y, 1)
self.op_viewer.case_node.setShapeTransformation(z, 2)
self.op_viewer.case_node.setShapeTransformation(
teta / pi * 180, 3)
self.op_viewer.case_node.setShapeTransformation(
rotataxis_index_combo, 4)
for i in range(
0, len(self.op_viewer.ui_subcase_list.selectedIndexes())):
index = self.op_viewer.ui_subcase_list.selectedIndexes()[i]
self.op_viewer.case_node.subshape[index.row()][0] = [
x, y, z, teta / pi * 180, rotataxis_index_combo
]
if self.op_viewer.selectionMode == "shape":
for i in range(0, len(self.op_viewer.case_node.subshape)):
self.op_viewer.case_node.subshape[i][0][0] = x
self.op_viewer.case_node.subshape[i][0][1] = y
self.op_viewer.case_node.subshape[i][0][2] = z
self.op_viewer.case_node.subshape[i][0][3] = teta / pi * 180
self.op_viewer.case_node.subshape[i][0][
4] = rotataxis_index_combo
self.op_viewer.display.Context.UpdateCurrentViewer()
return
SegmentNo = 101
ChordFact = 1.01
ScaleFact = 21.93
#
# print("Creating Fin...")
Fin = liftingsurface.LiftingSurface(P, mySweepAngleFunctionFin,
myDihedralFunctionFin,
myTwistFunctionFin,
myChordFunctionFin,
myAirfoilFunctionFin,
SegmentNo=SegmentNo,
ChordFactor=ChordFact,
ScaleFactor=ScaleFact)
# print("Fin done")
# Create the rotation axis centered at the apex point in the x direction
RotAxis = gp_Ax1(gp_Pnt(*P), gp_Dir(1, 0, 0))
# Having some problem with the fin loft: display some airfoils
# to figure out what's going on:
# for section in Fin._Sections:
# curve = section.Curve.GetObject()
# curve.Scale(gp_Pnt(0., 0., 0.), ScaleFact)
# display.DisplayShape(section.Curve, update=True)
Fin.RotateComponents(RotAxis, 90)
Fin.Display(display)
# Position of the apex of the tailplane
P = [43, 0.000, 1.633+0.02]
SegmentNo = 101
def compute_inertia_and_center_of_mass(shapes, io=None):
"""
Compute inertia from a list of Shapes.
Returns
-------
mass
center_of_mass
inertia
inertia_matrix
"""
from OCC.GProp import GProp_GProps
from OCC.BRepGProp import brepgprop_VolumeProperties
from OCC.gp import gp_Ax1, gp_Dir
from siconos.mechanics import occ
system = GProp_GProps()
for shape in shapes:
iprops = GProp_GProps()
if shape.data is None:
if io is not None:
shape.data = io._shape.get(shape.shape_name, new_instance=True)
else:
warn('cannot get shape {0}'.format(shape.shape_name))
return None
iishape = shape.data
ishape = occ.OccContactShape(iishape).data()
# the shape relative displacement
occ.occ_move(ishape, list(shape.translation) + list(shape.orientation))
brepgprop_VolumeProperties(iishape, iprops)
density = None
if hasattr(shape, 'mass') and shape.mass is not None:
density = shape.mass / iprops.Mass()
elif shape.parameters is not None and hasattr(shape.parameters,
'density'):
density = shape.parameters.density
#print('shape.parameters.density:', shape.parameters.density)
else:
density = 1.
assert density is not None
# print("shape", shape.shape_name)
# print('density:', density)
# print('iprops.Mass():', iprops.Mass())
system.Add(iprops, density)
mass = system.Mass()
assert (system.Mass() > 0.)
computed_com = system.CentreOfMass()
gp_mat = system.MatrixOfInertia()
inertia_matrix = np.zeros((3, 3))
for i in range(0, 3):
for j in range(0, 3):
inertia_matrix[i, j] = gp_mat.Value(i + 1, j + 1)
I1 = system.MomentOfInertia(gp_Ax1(computed_com, gp_Dir(1, 0, 0)))
I2 = system.MomentOfInertia(gp_Ax1(computed_com, gp_Dir(0, 1, 0)))
I3 = system.MomentOfInertia(gp_Ax1(computed_com, gp_Dir(0, 0, 1)))
inertia = [I1, I2, I3]
center_of_mass = np.array(
[computed_com.Coord(1),
computed_com.Coord(2),
computed_com.Coord(3)])
return mass, center_of_mass, inertia, inertia_matrix
if __name__ == "__main__":
argvs = sys.argv
parser = OptionParser()
parser.add_option("--dir", dest="dir", default="./")
parser.add_option("--surf", dest="surf", default="surf1")
parser.add_option("--pxyz",
dest="pxyz",
default=(0, 0, 0),
type="float",
nargs=3)
parser.add_option("--rxyz",
dest="rxyz",
default=(0, 0, 0),
type="float",
nargs=3)
opt, argc = parser.parse_args(argvs)
print(argc, opt)
ax = gp_Ax3(gp_Pnt(*opt.pxyz), gp_Dir(0, 0, 1))
for i, deg in enumerate(opt.rxyz):
if i == 0:
axs = gp_Ax1(ax.Location(), gp_Dir(1, 0, 0))
elif i == 1:
axs = gp_Ax1(ax.Location(), gp_Dir(0, 1, 0))
elif i == 2:
axs = gp_Ax1(ax.Location(), gp_Dir(0, 0, 1))
else:
axs = gp_Ax1(ax.Location(), gp_Dir(1, 0, 0))
ax.Rotate(axs, np.deg2rad(deg))
occ_to_grasp_cor(ax, opt.surf, opt.dir + opt.surf + ".cor")
def transonic_airliner(display=None,
Propulsion=1,
EngineDia=2.9,
FuselageScaling=[55.902, 55.902, 55.902],
NoseLengthRatio=0.182,
TailLengthRatio=0.293,
WingScaleFactor=44.56,
WingChordFactor=1.0,
Topology=1,
SpanStation1=0.35,
SpanStation2=0.675,
EngineCtrBelowLE=0.3558,
EngineCtrFwdOfLE=0.9837,
Scarf_deg=3):
"""
Parameters
----------
Propulsion - int
1 - twin
2 - quad
EngineDia - float
Diameter of engine intake highlight
FuselageScaling - list, length 3
Fx, Fy, Fz scaling factors of fuselage
NoseLengthRatio - scalar
Proportion of forward tapering section of the fuselage
TailLengthRatio - scalar
Proportion of aft tapering section of the fuselage
WingScaleFactor - scalar
Scale Factor of the main wing
WingChordFactor - scalar
Chord factor of the main wing
Topology - int
Topology = 2 should yield a box wing airliner - use with caution
SpanStation - float
Inboard engine at this span station
SpanStation2 - float
Outboard engine at this span station (ignored if Propulsion=1)
EngineCtrBelowLE - float
Engine below leading edge, normalised by the length of the nacelle -
range: [0.35,0.5]
EngineCtrFwdOfLE - float
Engine forward of leading edge, normalised by the length of the nacelle
range: [0.85,1.5]
Scarf_deg - scalar # Engine scarf angle
Returns
-------
airliner - 'Aircraft' class instance
The collection of aircraft parts
See also
--------
class Aircraft
"""
try:
Fus = fuselage_oml.Fuselage(NoseLengthRatio,
TailLengthRatio,
Scaling=FuselageScaling,
NoseCoordinates=[0, 0, 0])
except:
print "Fuselage fitting failed - stopping."
return None
FuselageHeight = FuselageScaling[2] * 0.105
FuselageLength = FuselageScaling[0]
FuselageWidth = FuselageScaling[1] * 0.106
if Fus['OML'] is None:
print "Failed to fit fuselage surface, stopping."
return None
# FSurf = rs.CopyObject(FuselageOMLSurf)
# Position of the apex of the wing
if FuselageHeight < 8.0:
#787:[9.77,0,-0.307]
WingApex = [0.1748 * FuselageLength, 0, -0.0523 * FuselageHeight]
else:
WingApex = [0.1748 * FuselageLength, 0,
-0.1 * FuselageHeight] #787:[9.77,0,-0.307]
# Set up the wing object, including the list of user-defined functions that
# describe the spanwise variations of sweep, dihedral, etc.
if Topology == 1:
NSeg = 10
Wing = liftingsurface.LiftingSurface(WingApex,
mySweepAngleFunctionAirliner,
myDihedralFunctionAirliner,
myTwistFunctionAirliner,
myChordFunctionAirliner,
myAirfoilFunctionAirliner,
SegmentNo=NSeg,
ScaleFactor=WingScaleFactor,
ChordFactor=WingChordFactor)
RootChord = Wing.RootChord
elif Topology == 2:
NSeg = 101
Wing = liftingsurface.LiftingSurface(WingApex,
mySweepAngleFunctionAirliner,
bw.myDihedralFunctionBoxWing,
myTwistFunctionAirliner,
myChordFunctionAirliner,
myAirfoilFunctionAirliner,
SegmentNo=NSeg,
ScaleFactor=WingScaleFactor,
ChordFactor=WingChordFactor)
RootChord = Wing.RootChord
if Topology == 1:
# Add wing to body fairing
WTBFXCentre = WingApex[
0] + RootChord / 2.0 + RootChord * 0.1297 # 787: 23.8
if FuselageHeight < 8.0:
#Note: I made changes to this in OCC Airconics to get a better fit
# - Paul
WTBFZ = RootChord * 0.009 #787: 0.2
WTBFheight = 1.8 * 0.1212 * RootChord #787:2.7
WTBFwidth = 1.08 * FuselageWidth
else:
WTBFZ = WingApex[2] + 0.005 * RootChord
WTBFheight = 0.09 * RootChord
WTBFwidth = 1.15 * FuselageWidth
WTBFlength = 1.167 * RootChord #787:26
WBF_shape = act.make_ellipsoid([WTBFXCentre, 0, WTBFZ], WTBFlength,
WTBFwidth, WTBFheight)
WBF = AirconicsShape(components={'WBF': WBF_shape})
# Trim wing inboard section
CutCirc = act.make_circle3pt([0, WTBFwidth / 4., -45],
[0, WTBFwidth / 4., 45],
[90, WTBFwidth / 4., 0])
CutCircDisk = act.PlanarSurf(CutCirc)
Wing['Surface'] = act.TrimShapebyPlane(Wing['Surface'], CutCircDisk)
elif Topology == 2:
# Overlapping wing tips
CutCirc = act.make_circle3pt((0, 0, -45), (0, 0, 45), (90, 0, 0))
CutCircDisk = act.PlanarSurf(CutCirc)
Wing['Surface'] = act.TrimShapebyPlane(Wing['Surface'], CutCircDisk)
# Engine installation (nacelle and pylon)
NacelleLength = 1.95 * EngineDia
if Propulsion == 1:
SpanStations = [SpanStation1]
elif Propulsion == 2:
SpanStations = [SpanStation1, SpanStation2]
engines = []
for i, SpanStation in enumerate(SpanStations):
EngineSection, Chord = act.CutSect(Wing['Surface'], SpanStation)
CEP = Chord.EndPoint()
Centreloc = [
CEP.X() - EngineCtrFwdOfLE * NacelleLength,
CEP.Y(),
CEP.Z() - EngineCtrBelowLE * NacelleLength
]
eng = engine.Engine(Chord,
CentreLocation=Centreloc,
ScarfAngle=Scarf_deg,
HighlightRadius=EngineDia / 2.0,
MeanNacelleLength=NacelleLength)
engines.append(eng)
# # Script for generating and positioning the fin
# # Position of the apex of the fin
P = [0.6524 * FuselageLength, 0.003, FuselageHeight * 0.384]
#P = [36.47,0.003,2.254]55.902
if Topology == 1:
ScaleFactor = WingScaleFactor / 2.032 #787:21.93
elif Topology == 2:
ScaleFactor = WingScaleFactor / 3.5
SegmentNo = 100
ChordFactor = 1.01 #787:1.01
Fin = liftingsurface.LiftingSurface(P,
mySweepAngleFunctionFin,
myDihedralFunctionFin,
myTwistFunctionFin,
myChordFunctionFin,
myAirfoilFunctionFin,
SegmentNo=SegmentNo,
ChordFactor=ChordFactor,
ScaleFactor=ScaleFactor)
# Create the rotation axis centered at the apex point in the x direction
RotAxis = gp_Ax1(gp_Pnt(*P), gp_Dir(1, 0, 0))
Fin.RotateComponents(RotAxis, 90)
if Topology == 1:
# Tailplane
P = [0.7692 * FuselageLength, 0.000, FuselageHeight * 0.29]
SegmentNo = 100
ChordFactor = 1.01
ScaleFactor = 0.388 * WingScaleFactor #787:17.3
TP = liftingsurface.LiftingSurface(P,
mySweepAngleFunctionTP,
myDihedralFunctionTP,
myTwistFunctionTP,
myChordFunctionTP,
myAirfoilFunctionTP,
SegmentNo=SegmentNo,
ChordFactor=ChordFactor,
ScaleFactor=ScaleFactor)
# OCC_AirCONICS Note: Nothing below here implemented in OCC_AirCONICS - See
# Rhino version for this functionality (largely for display only)
#
# rs.DeleteObjects([EngineSection, Chord])
# try:
# rs.DeleteObjects([CutCirc])
# except:
# pass
#
# try:
# rs.DeleteObjects([CutCircDisk])
# except:
# pass
#
# # Windows
#
# # Cockpit windows:
CockpitWindowTop = 0.305 * FuselageHeight
print("Making Fuselage Windows...")
# solids = Fus.CockpitWindowContours(Height=CockpitWindowTop, Depth=6)
#
## Cut the windows out:
# for solid in solids:
# Fus['OML'] = act.SplitShape(Fus['OML'], solid)
#
#
# print("Cockpit Windows Done.")
##
## (Xmin,Ymin,Zmin,Xmax,Ymax,Zmax) = act.ObjectsExtents([Win1, Win2, Win3, Win4])
CockpitBulkheadX = NoseLengthRatio * FuselageLength * 0.9
##
## CockpitWallPlane = rs.PlaneFromPoints([CockpitBulkheadX, -15,-15],
## [CockpitBulkheadX,15,-15],
## [CockpitBulkheadX,-15,15])
##
## CockpitWall = rs.AddPlaneSurface(CockpitWallPlane, 30, 30)
##
## if 'WTBF' in locals():
## rs.TrimBrep(WTBF, CockpitWall)
##
## rs.DeleteObject(CockpitWall)
#
## # Window lines
WIN = [1]
NOWIN = [0]
##
### # A typical window pattern (including emergency exit windows)
WinVec = WIN + 2 * NOWIN + 9 * WIN + 3 * NOWIN + WIN + NOWIN + 24 * WIN + 2 * NOWIN + WIN + NOWIN + 14 * WIN + 2 * NOWIN + WIN + 20 * WIN + 2 * NOWIN + WIN + NOWIN + 20 * WIN
wires = []
if FuselageHeight < 8.0:
### # Single deck
WindowLineHeight = 0.3555 * FuselageHeight
WinX = 0.1157 * FuselageLength
WindowPitch = 0.609
WinInd = -1
i = 0
while WinX < 0.75 * FuselageLength:
WinInd = WinInd + 1
if WinVec[WinInd] == 1 and WinX > CockpitBulkheadX:
i = i + 1
print("Generating cabin window {}".format(i))
WinCenter = [WinX, WindowLineHeight]
W_wire = Fus.WindowContour(WinCenter)
wires.append(W_wire)
# display.DisplayShape(W_wire, color='black')
# win_port, win_stbd = Fus.MakeWindow(*WinCenter)
# print(type(win_port), type(win_stbd))
#
# display.DisplayShape(win_port, color='Black')
# display.DisplayShape(win_stbd, color='Black')
#
### Note: Need to fix makewindow to return windows WinStbd,
## # WinPort,
# Fus.MakeWindow(WinX, WindowLineHeight)
### act.AssignMaterial(WinStbd,"Plexiglass")
### act.AssignMaterial(WinPort,"Plexiglass")
WinX = WinX + WindowPitch
#
# print("Cabin windows done")
# else:
# # TODO: Fuselage big enough to accommodate two decks
# # Lower deck
# WindowLineHeight = 0.17*FuselageHeight #0.166
# WinX = 0.1*FuselageLength #0.112
# WindowPitch = 0.609
# WinInd = 0
# while WinX < 0.757*FuselageLength:
# WinInd = WinInd + 1
# if WinVec[WinInd] == 1 and WinX > CockpitBulkheadX:
# WinStbd, WinPort, FuselageOMLSurf = fuselage_oml.MakeWindow(FuselageOMLSurf, WinX, WindowLineHeight)
# act.AssignMaterial(WinStbd,"Plexiglass")
# act.AssignMaterial(WinPort,"Plexiglass")
# WinX = WinX + WindowPitch
# # Upper deck
# WindowLineHeight = 0.49*FuselageHeight
# WinX = 0.174*FuselageLength #0.184
# WinInd = 0
# while WinX < 0.757*FuselageLength:
# WinInd = WinInd + 1
# if WinVec[WinInd] == 1 and WinX > CockpitBulkheadX:
# WinStbd, WinPort, FuselageOMLSurf = fuselage_oml.MakeWindow(FuselageOMLSurf, WinX, WindowLineHeight)
# act.AssignMaterial(WinStbd,"Plexiglass")
# act.AssignMaterial(WinPort,"Plexiglass")
# WinX = WinX + WindowPitch
#
#
#
#
#
# act.AssignMaterial(FuselageOMLSurf,"White_composite_external")
# act.AssignMaterial(WingSurf,"White_composite_external")
# try:
# act.AssignMaterial(TPSurf,"ShinyBARedMetal")
# except:
# pass
# act.AssignMaterial(FinSurf,"ShinyBARedMetal")
# act.AssignMaterial(Win1,"Plexiglass")
# act.AssignMaterial(Win2,"Plexiglass")
# act.AssignMaterial(Win3,"Plexiglass")
# act.AssignMaterial(Win4,"Plexiglass")
#
#
# # Mirror the geometry as required
Wing2 = Wing.MirrorComponents(plane='xz')
try:
# this try section allows box wing i.e. no tailplane
TP2 = TP.MirrorComponents(plane='xz')
except:
pass
engines_left = []
for eng in engines:
engines_left.append(eng.MirrorComponents(plane='xz'))
# if Propulsion == 1:
# for ObjId in EngineStbd:
# act.MirrorObjectXZ(ObjId)
# act.MirrorObjectXZ(PylonStbd)
# elif Propulsion == 2:
# raise NotImplementedError
# for ObjId in EngineStbd1:
# act.MirrorObjectXZ(ObjId)
# act.MirrorObjectXZ(PylonStbd1)
# for ObjId in EngineStbd2:
# act.MirrorObjectXZ(ObjId)
# act.MirrorObjectXZ(PylonStbd2)
# Build the return assembly (could change this later based on input 'tree':
airliner = AirconicsCollection(
parts={
'Wing_right': Wing,
'Wing_left': Wing2,
'Fuselage': Fus,
'Fin': Fin,
'Tailplane_right': TP,
'Tailplane_left': TP2,
'WBF': WBF
})
# Loop over the engines and write all components:
for i, eng in enumerate(engines):
name = 'engine_right' + str(i + 1)
airliner.AddPart(eng, name)
for i, eng in enumerate(engines_left):
name = 'engine_left' + str(i + 1)
airliner.AddPart(eng, name)
return airliner, wires
wire = BRepBuilderAPI_MakeWire(edge.Edge()) mkWire.Add(wire.Wire()) edge = BRepBuilderAPI_MakeEdge(gp_Pnt(90, xt8, 0), gp_Pnt(100, xt8, 0)) wire = BRepBuilderAPI_MakeWire(edge.Edge()) mkWire.Add(wire.Wire()) edge = BRepBuilderAPI_MakeEdge(gp_Pnt(100, xt8, 0), gp_Pnt(100, 0, 0)) wire = BRepBuilderAPI_MakeWire(edge.Edge()) mkWire.Add(wire.Wire()) edge = BRepBuilderAPI_MakeEdge(gp_Pnt(100, 0, 0), gp_Pnt(0, 0, 0)) wire = BRepBuilderAPI_MakeWire(edge.Edge()) mkWire.Add(wire.Wire()) # делаем из контура фейс face = BRepBuilderAPI_MakeFace(mkWire.Wire()) # поворациваем профель относительно однрй из своих сторон, ось # вращения указана вектором, поворачиваем на 180 градусов solid_of_revol = BRepPrimAPI_MakeRevol(face.Face(), gp_Ax1(gp_Pnt(0, 0, 0), gp_Dir(1, 0, 0)), 2 * math.pi) # Создаём вырез # Рисуем профиль и вытягиваем его R = 5 + D / 2 b_max = 20 y = - (b_max * math.tan(gamma)) z = -(R - b_max) mkWire = BRepBuilderAPI_MakeWire() edge = BRepBuilderAPI_MakeEdge(gp_Pnt(0, y, z), gp_Pnt(0, R, z)) wire = BRepBuilderAPI_MakeWire(edge.Edge()) mkWire.Add(wire.Wire()) edge = BRepBuilderAPI_MakeEdge(gp_Pnt(0, R, z), gp_Pnt(0, R, -R)) wire = BRepBuilderAPI_MakeWire(edge.Edge()) mkWire.Add(wire.Wire()) edge = BRepBuilderAPI_MakeEdge(gp_Pnt(0, R, -R), gp_Pnt(0, 0, -R)) wire = BRepBuilderAPI_MakeWire(edge.Edge())
from OCC import BRepPrimAPI, Geom, gp, BRepBuilderAPI
from viewer import view
from math import pi
el = gp.gp_Elips(gp.gp_Ax2(gp.gp_Pnt(0,0,0), gp.gp_Dir(1,0,0)),
20.0, 10.0)
edge1 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(el,
gp.gp_Pnt(0,0,20),
gp.gp_Pnt(0,0,-20))
edge2 = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(gp.gp_Pnt(0,0,-20),
gp.gp_Pnt(0,0,20))
wire = BRepBuilderAPI.BRepBuilderAPI_MakeWire()
wire.Add(edge1.Edge())
wire.Add(edge2.Edge())
face = BRepBuilderAPI.BRepBuilderAPI_MakeFace(wire.Wire())
el = BRepPrimAPI.BRepPrimAPI_MakeRevol(face.Shape(),
gp.gp_Ax1(gp.gp_Pnt(0,0,0),
gp.gp_Dir(0,0,1)),
pi*2)
#h_curve = Geom.Handle_Geom_Ellipse(curve)
#rev = BRepPrimAPI.BRepPrimAPI_MakeRevolution(h_curve, 120.1)
##nurbs = BRepBuilderAPI.BRepBuilderAPI_NurbsConvert(rev.Shape())
view(el.Shape())
wp_bottom = topods.Wire(wp_bottom) # wire
case_bottom = BRepBuilderAPI_Transform(case_top, mirror).Shape()
case_bottom = topods.Wire(case_bottom) # wire
# translate outer sections
trans = gp_Trsf()
trans.SetTranslation(gp_Pnt(loop[0]['p3']['r'], 0, loop[0]['p3']['z']),
gp_Pnt(loop[3]['p0']['r'], 0, loop[3]['p0']['z']))
wp_bottom = BRepBuilderAPI_Transform(wp_bottom, trans).Shape()
wp_bottom = topods.Wire(wp_bottom) # wire
case_bottom = BRepBuilderAPI_Transform(case_bottom, trans).Shape()
case_bottom = topods.Wire(case_bottom) # wire
# rotate outboard
rotate = gp_Trsf()
axis = gp_Ax1(gp_Pnt(loop[0]['p3']['r'], 0, loop[0]['p3']['z']),
gp_Dir(0, 1, 0))
angle = -loop[2]['p0']['t']
rotate.SetRotation(axis, angle)
case_outer = BRepBuilderAPI_Transform(case_top, rotate).Shape()
wp_outer = BRepBuilderAPI_Transform(wp_top, rotate).Shape()
# translate outboard
trans = gp_Trsf()
trans.SetTranslation(gp_Pnt(loop[0]['p3']['r'], 0, loop[0]['p3']['z']),
gp_Pnt(loop[1]['p3']['r'], 0, loop[1]['p3']['z']))
case_outer = BRepBuilderAPI_Transform(case_outer, trans).Shape()
case_outer = topods.Wire(case_outer) # wire
wp_outer = BRepBuilderAPI_Transform(wp_outer, trans).Shape()
wp_outer = topods.Wire(wp_outer) # wire
TFprofile = {}