def wpBy3Pts(*args):
"""Direction from pt1 to pt2 sets wDir, pt2 is wpOrigin.
Direction from pt2 to pt3 sets uDir."""
prev_uid = win.activeWpUID # uid of currently active workplane
if win.ptStack:
# Finish
p3 = win.ptStack.pop()
p2 = win.ptStack.pop()
p1 = win.ptStack.pop()
wVec = gp_Vec(p1, p2)
wDir = gp_Dir(wVec)
origin = p2
uVec = gp_Vec(p2, p3)
uDir = gp_Dir(uVec)
axis3 = gp_Ax3(origin, wDir, uDir)
wp = workplane.WorkPlane(100, ax3=axis3)
new_uid = win.get_wp_uid(wp)
display_new_active_wp(prev_uid, new_uid)
win.clearCallback()
else:
# Initial setup
win.registerCallback(wpBy3PtsC)
display.selected_shape = None
display.SetSelectionModeVertex()
statusText = "Pick 3 points. Dir from pt1-pt2 sets wDir, pt2 is origin."
win.statusBar().showMessage(statusText)
return
def get_boundingbox(shape, tol=1e-6, as_vec=False):
""" return the bounding box of the TopoDS_Shape `shape`
Parameters
----------
shape : TopoDS_Shape or a subclass such as TopoDS_Face
the shape to compute the bounding box from
tol: float
tolerance of the computed boundingbox
as_vec : bool
wether to return the lower and upper point of the bounding box as gp_Vec instances
Returns
-------
if `as_vec` is True, return a tuple of gp_Vec instances
for the lower and another for the upper X,Y,Z values representing the bounding box
if `as_vec` is False, return a tuple of lower and then upper X,Y,Z values
representing the bounding box
"""
bbox = Bnd_Box()
bbox.SetGap(tol)
brepbndlib_Add(shape, bbox)
xmin, ymin, zmin, xmax, ymax, zmax = bbox.Get()
if as_vec is False:
return xmin, ymin, zmin, xmax, ymax, zmax
else:
return gp_Vec(xmin, ymin, zmin), gp_Vec(xmax, ymax, zmax)
def brep_feat_rib(event=None):
mkw = BRepBuilderAPI_MakeWire()
mkw.Add(BRepBuilderAPI_MakeEdge(gp_Pnt(0., 0., 0.), gp_Pnt(200., 0., 0.)).Edge())
mkw.Add(BRepBuilderAPI_MakeEdge(gp_Pnt(200., 0., 0.), gp_Pnt(200., 0., 50.)).Edge())
mkw.Add(BRepBuilderAPI_MakeEdge(gp_Pnt(200., 0., 50.), gp_Pnt(50., 0., 50.)).Edge())
mkw.Add(BRepBuilderAPI_MakeEdge(gp_Pnt(50., 0., 50.), gp_Pnt(50., 0., 200.)).Edge())
mkw.Add(BRepBuilderAPI_MakeEdge(gp_Pnt(50., 0., 200.), gp_Pnt(0., 0., 200.)).Edge())
mkw.Add(BRepBuilderAPI_MakeEdge(gp_Pnt(0., 0., 200.), gp_Pnt(0., 0., 0.)).Edge())
S = BRepPrimAPI_MakePrism(BRepBuilderAPI_MakeFace(mkw.Wire()).Face(),
gp_Vec(gp_Pnt(0., 0., 0.),
gp_Pnt(0., 100., 0.)))
display.EraseAll()
# display.DisplayShape(S.Shape())
W = BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge(gp_Pnt(50., 45., 100.),
gp_Pnt(100., 45., 50.)).Edge())
aplane = Geom_Plane(0., 1., 0., -45.)
aform = BRepFeat_MakeLinearForm(S.Shape(), W.Wire(), aplane,
gp_Vec(0., 10., 0.), gp_Vec(0., 0., 0.),
1, True)
aform.Perform()
display.DisplayShape(aform.Shape())
display.FitAll()
def split_compound(compound):
all_faces = get_faces(compound)
planar_faces = list(filter(lambda x: Face(x).is_planar(), all_faces))
p1, v1 = gp_Pnt(50, 50, 25), gp_Vec(0, 0, -1)
fc1 = make_face(gp_Pln(p1, vec_to_dir(v1)), -1000, 1000, -1000,
1000) # limited, not infinite plane
bo = BOPAlgo_Builder()
bo.AddArgument(copy.deepcopy(compound))
# bo.AddArgument(fc1)
# display.DisplayShape(fc1, transparency=0.7)
for f in planar_faces:
gprop = BRepGProp_Face(f)
normal_point = gp_Pnt(0, 0, 0)
normal_vec = gp_Vec(0, 0, 0)
gprop.Normal(0, 0, normal_point, normal_vec)
big_face = make_face(gp_Pln(normal_point,
vec_to_dir(normal_vec)), -1000, 1000,
-1000, 1000) # limited, not infinite plane
bo.AddArgument(big_face)
# display.DisplayShape(big_face, transparency=0.7)
bo.Perform()
# print("error status: {}".format(bo.ErrorStatus()))
top = Topo(bo.Shape())
result = [s for s in top.solids()]
return result
def _axis(self, size):
style = self._axisStyle()
step = size / 10
ss = [1, 5, 10, 50, 100, 500, 1000, 5000, 10000]
for s in ss:
if step < s:
step = s / 5
break
pnt = gp_Pnt(0, 0, 0)
dir1 = gp_Dir(gp_Vec(0, 0, 1))
dir2 = gp_Dir(gp_Vec(1, 0, 0))
geomAxis = Geom_Axis2Placement(pnt, dir1, dir2)
trih = AIS_Trihedron(geomAxis)
trih.SetSize(size)
self._drawAis(trih, style)
self._drawPoint(gp_Pnt(0, 0, 0), style)
cnt = int(size // step)
for i in range(1, cnt):
d = i * step
self._drawPoint(gp_Pnt(d, 0, 0), style)
self._drawPoint(gp_Pnt(0, d, 0), style)
self._drawPoint(gp_Pnt(0, 0, d), style)
def test_surface_from_curves(self):
'''Test: surfaces from curves'''
array = []
array.append(gp_Pnt(-4, 0, 2))
array.append(gp_Pnt(-7, 2, 2))
array.append(gp_Pnt(-6, 3, 1))
array.append(gp_Pnt(-4, 3, -1))
array.append(gp_Pnt(-3, 5, -2))
aaa = point_list_to_TColgp_Array1OfPnt(array)
SPL1 = GeomAPI_PointsToBSpline(aaa).Curve()
a2 = []
a2.append(gp_Pnt(-4, 0, 2))
a2.append(gp_Pnt(-2, 2, 0))
a2.append(gp_Pnt(2, 3, -1))
a2.append(gp_Pnt(3, 7, -2))
a2.append(gp_Pnt(4, 9, -1))
bbb = point_list_to_TColgp_Array1OfPnt(a2)
SPL2 = GeomAPI_PointsToBSpline(bbb).Curve()
aGeomFill1 = GeomFill_BSplineCurves(SPL1, SPL2, GeomFill_StretchStyle)
SPL3 = Geom_BSplineCurve.DownCast(SPL1.Translated(gp_Vec(10, 0, 0)))
SPL4 = Geom_BSplineCurve.DownCast(SPL2.Translated(gp_Vec(10, 0, 0)))
aGeomFill2 = GeomFill_BSplineCurves(SPL3, SPL4, GeomFill_CoonsStyle)
SPL5 = Geom_BSplineCurve.DownCast(SPL1.Translated(gp_Vec(20, 0, 0)))
SPL6 = Geom_BSplineCurve.DownCast(SPL2.Translated(gp_Vec(20, 0, 0)))
aGeomFill3 = GeomFill_BSplineCurves(SPL5, SPL6, GeomFill_CurvedStyle)
aBSplineSurface1 = aGeomFill1.Surface()
aBSplineSurface2 = aGeomFill2.Surface()
aBSplineSurface3 = aGeomFill3.Surface()
def test_gp_Quaternion(self):
'''
Test Interpolate method of qp_QuaternionSLerp.
This method takes a by ref parameter q.
'''
vX = gp_Vec(12, 0, 0)
vY = gp_Vec(0, 12, 0)
v45 = (gp_Vec(1, 1, 1).Normalized() * 12)
q = gp_Quaternion()
q1 = gp_Quaternion(vX, vX)
q2 = gp_Quaternion(vX, vY)
interp = gp_QuaternionSLerp(q1, q2)
interp.Init(q1, q2)
for i in range(10):
i__ = i / 10.
interp.Interpolate(i__, q)
if i == 0:
self.assertEqual(q.X(), 0.)
self.assertEqual(q.Y(), 0.)
self.assertEqual(q.Z(), 0.)
self.assertEqual(q.W(), 1.)
else:
self.assertEqual(q.X(), 0.)
self.assertEqual(q.Y(), 0.)
assert q.Z() > 0.
assert q.W() < 1.
def angle_bw_2_vecs_w_ref(pyvec1, pyvec2, ref_pyvec):
"""
This function measures the angle between two vectors regards to a reference vector.
The reference vector must be perpendicular to both the vectors. The angle is measured in counter-clockwise direction.
Parameters
----------
pyvec1 : tuple of floats
The first vector to be measured. A pyvec is a tuple that documents the xyz direction of a vector e.g. (x,y,z)
pyvec2 : tuple of floats
The second vector to be measured. A pyvec is a tuple that documents the xyz direction of a vector e.g. (x,y,z)
ref_pyvec : tuple of floats
The reference vector must be perpendicular to pyvec1 and pyvec2.
A pyvec is a tuple that documents the xyz direction of a vector e.g. (x,y,z)
Returns
-------
angle : float
The measured angle between pyvec1 and pyvec2 regards to ref_pyvec, the angle is measured in counter-clockwise direction.
"""
vec1 = gp_Vec(pyvec1[0], pyvec1[1], pyvec1[2])
vec2 = gp_Vec(pyvec2[0], pyvec2[1], pyvec2[2])
ref_vec = gp_Vec(ref_pyvec[0], ref_pyvec[1], ref_pyvec[2])
radangle = vec1.AngleWithRef(vec2, ref_vec)
angle = radangle * (180.0 / math.pi)
if angle < 0:
angle = 360 + angle
#the angle is measured in counter-clockwise direction
return angle
def rotate(event=None):
display.EraseAll()
origin = gp_Vec(0, 0, 0)
origin_pt = as_pnt(origin)
vX = gp_Vec(12, 0, 0)
vY = gp_Vec(0, 12, 0)
v45 = (gp_Vec(1, 1, 1).Normalized() * 12)
q1 = gp_Quaternion(vX, vY)
p1 = as_pnt(origin + vX)
p2 = as_pnt(origin + vY)
p3 = as_pnt(origin + (q1 * vY))
p4 = as_pnt(origin + (q1 * v45))
# RED
e1 = make_edge(origin_pt, p1)
e2 = make_edge(origin_pt, p2)
e3 = make_edge(origin_pt, as_pnt(v45))
# GREEN -> transformed
e4 = make_edge(origin_pt, p3)
e5 = make_edge(origin_pt, p4)
display.DisplayShape([e1, e2, e3])
display.DisplayColoredShape([e4, e5], 'GREEN')
display.DisplayMessage(p1, 'e1')
display.DisplayMessage(p2, 'e2')
display.DisplayMessage(as_pnt(v45), 'e3')
display.DisplayMessage(p3, 'q1*vY')
display.DisplayMessage(p4, 'q1*v45')
display.DisplayVector((q1 * vY).Normalized(), as_pnt(origin + q1 * vY / 2.))
display.DisplayVector((q1 * v45).Normalized(), as_pnt(origin + q1 * v45 / 2.))
display.FitAll()
def display_vector(self, origin, direction):
r"""Display a vector starting at origin and going in direction
Parameters
----------
origin : tuple(float)
The origin coordinates (x, y, z) of the vector to display
direction : tuple(float)
The direction coordinates (x, y, z) of the vector to display
"""
xo, yo, zo = origin
xd, yd, zd = direction
end = (xo + xd, yo + xd, zo + zd)
xe, ye, ze = end
# self.glarea.d3d.DisplayVector(gp_Vec(xd, yd, zd), gp_Pnt(xo, yo, zo))
presentation = Prs3d_Presentation(self.glarea.occ_context.MainPrsMgr().
GetObject().StructureManager())
arrow = Prs3d_Arrow()
arrow.Draw(presentation.GetHandle(), gp_Pnt(xe, ye, ze),
gp_Dir(gp_Vec(xd, yd, zd)), _math.radians(20),
gp_Vec(xd, yd, zd).Magnitude() / 4.)
presentation.Display()
e1 = BRepBuilderAPI_MakeEdge(gp_Pnt(xo, yo, zo), gp_Pnt(xe, ye, ze)).\
Edge()
self.display(e1, line_width=4)
def get_boundingbox(shape, tol=1e-6, as_vec=False):
""" return the bounding box of the TopoDS_Shape `shape`
Parameters
----------
shape : TopoDS_Shape or a subclass such as TopoDS_Face
the shape to compute the bounding box from
tol: float
tolerance of the computed boundingbox
as_vec : bool
wether to return the lower and upper point of the bounding box as gp_Vec instances
Returns
-------
if `as_vec` is True, return a tuple of gp_Vec instances
for the lower and another for the upper X,Y,Z values representing the bounding box
if `as_vec` is False, return a tuple of lower and then upper X,Y,Z values
representing the bounding box
"""
bbox = Bnd_Box()
bbox.SetGap(tol)
brepbndlib_Add(shape, bbox)
xmin, ymin, zmin, xmax, ymax, zmax = bbox.Get()
if as_vec is False:
return xmin, ymin, zmin, xmax, ymax, zmax
else:
return gp_Vec(xmin, ymin, zmin), gp_Vec(xmax, ymax, zmax)
def test_gp_Quaternion(self):
'''
Test Interpolate method of qp_QuaternionSLerp.
This method takes a by ref parameter q.
'''
vX = gp_Vec(12, 0, 0)
vY = gp_Vec(0, 12, 0)
q = gp_Quaternion()
q1 = gp_Quaternion(vX, vX)
q2 = gp_Quaternion(vX, vY)
interp = gp_QuaternionSLerp(q1, q2)
interp.Init(q1, q2)
for i in range(10):
i__ = i / 10.
interp.Interpolate(i__, q)
if i == 0:
self.assertEqual(q.X(), 0.)
self.assertEqual(q.Y(), 0.)
self.assertEqual(q.Z(), 0.)
self.assertEqual(q.W(), 1.)
else:
self.assertEqual(q.X(), 0.)
self.assertEqual(q.Y(), 0.)
self.assertGreater(q.Z(), 0.)
self.assertLess(q.W(), 1.)
def htransform2(tpnt, tvx, tvy, tvz, pnt, vx, vy, vz):
tvx = tvy.Crossed(tvz)
tvy = tvz.Crossed(tvx)
tvx.Normalize()
tvy.Normalize()
tvz.Normalize()
tpnt = gp_Pnt((gp_Vec(tpnt.XYZ()) + tvz * 0.1).XYZ())
vx = vy.Crossed(vz)
vy = vz.Crossed(vx)
vx.Normalize()
vy.Normalize()
vz.Normalize()
Tt = gp_GTrsf(
gp_Mat(tvx.X(), tvy.X(), tvz.X(), tvx.Y(), tvy.Y(), tvz.Y(), tvx.Z(),
tvy.Z(), tvz.Z()), gp_XYZ(tpnt.X(), tpnt.Y(), tpnt.Z()))
Tt.Invert()
rott = gp_Mat(tvx.X(), tvy.X(), tvz.X(), tvx.Y(), tvy.Y(), tvz.Y(),
tvx.Z(), tvy.Z(), tvz.Z())
rott.Transpose()
quatt = gp_Quaternion(rott)
dispt = gp_Vec(Tt.TranslationPart().X(),
Tt.TranslationPart().Y(),
Tt.TranslationPart().Z())
trsft = gp_Trsf()
trsft.SetTransformation(quatt, dispt)
rotp = gp_Mat(vx.X(), vy.X(), vz.X(), vx.Y(), vy.Y(), vz.Y(), vx.Z(),
vy.Z(), vz.Z())
quatp = gp_Quaternion(rotp)
dispp = gp_Vec(gp_Pnt(0, 0, 0), pnt)
trsfp = gp_Trsf()
trsfp.SetTransformation(quatp, dispp)
trsfo = trsfp.Multiplied(trsft)
loco = TopLoc_Location(trsfo)
return loco
def display_anchorable_part(d,
ap,
color="YELLOW",
transparency=0.5,
update=True):
r"""
Parameters
----------
d : display (first return value of a call to
OCC.Display.SimpleGui.init_display())
ap : AnchorablePart
color : str
transparency : float between 0 and 1
update : bool
"""
d.DisplayShape(ap.transformed_shape,
color=color,
transparency=transparency,
update=update)
for anchor_name, anchor in ap.transformed_anchors.items():
d.DisplayVector(pnt=gp_Pnt(float(anchor.p[0]), float(anchor.p[1]),
float(anchor.p[2])),
vec=gp_Vec(float(anchor.u[0]), float(anchor.u[1]),
float(anchor.u[2])))
d.DisplayVector(pnt=gp_Pnt(float(anchor.p[0]), float(anchor.p[1]),
float(anchor.p[2])),
vec=gp_Vec(float(anchor.v[0]), float(anchor.v[1]),
float(anchor.v[2])))
def wpBy3Pts(*args):
"""Direction from pt1 to pt2 sets wDir, pt2 is wpOrigin.
Direction from pt2 to pt3 sets uDir."""
if win.ptStack:
# Finish
p3 = win.ptStack.pop()
p2 = win.ptStack.pop()
p1 = win.ptStack.pop()
wVec = gp_Vec(p1, p2)
wDir = gp_Dir(wVec)
origin = p2
uVec = gp_Vec(p2, p3)
uDir = gp_Dir(uVec)
axis3 = gp_Ax3(origin, wDir, uDir)
wp = workplane.WorkPlane(100, ax3=axis3)
win.getNewPartUID(wp, typ='w')
win.clearCallback()
statusText = "Workplane created."
win.statusBar().showMessage(statusText)
else:
# Initial setup
win.registerCallback(wpBy3PtsC)
display.selected_shape = None
display.SetSelectionModeVertex()
statusText = "Pick 3 points. Dir from pt1-pt2 sets wDir, pt2 is origin."
win.statusBar().showMessage(statusText)
return
def generate_tool_targets(self):
ba = BRepAdaptor_Curve(self.helix_edge)
u_min = ba.FirstParameter()
u_max = ba.LastParameter()
u_step = 0.1
u_now = u_min
while u_now <= u_max:
v_contact = gp_Vec(ba.Value(u_now).XYZ())
if self.inside: # cut inside
v_contact_to_ball_center = -gp_Vec(v_contact.X(),v_contact.Y(),0).Normalized()*self.ball_radius
else: # cut outside
v_contact_to_ball_center = gp_Vec(v_contact.X(),v_contact.Y(),0).Normalized()*self.ball_radius
trsf = gp_Trsf()
trsf.SetRotation(gp_Ax1(gp_Pnt(0,0,0),gp_Dir(0,0,1)),pi/2)
v_rotation_axis = v_contact_to_ball_center.Transformed(trsf)
trsf.SetRotation(gp_Ax1(gp_Pnt(0,0,0),gp_Dir(v_rotation_axis.XYZ())),radians(self.cutting_angle))
v_ball_center_to_tool_tip = gp_Vec(0,0,-self.ball_radius)
v_ball_center_to_tool_tip.Transform(trsf)
v_tool_tip = v_contact+v_contact_to_ball_center+v_ball_center_to_tool_tip
v_tool_orientation = - v_ball_center_to_tool_tip.Normalized() * (0.500+1e-8)
if self.create_target_vis_edges:
me = BRepBuilderAPI_MakeEdge(gp_Pnt(v_tool_tip.XYZ()),gp_Pnt((v_tool_tip+v_tool_orientation).XYZ()))
self.target_edges.append(me.Edge())
I = v_tool_tip.X() / 1000
J = v_tool_tip.Y() / 1000
K = v_tool_tip.Z() / 1000
U = v_tool_orientation.X()
V = v_tool_orientation.Y()
W = v_tool_orientation.Z()
x,y,z,a,b = self.ikSolver.solve((I,J,K,U,V,W),1e-6,False)
x += self.output_offset[0]
y += self.output_offset[1]
z += self.output_offset[2]
a += self.output_offset[3]
b += self.output_offset[4]
if self.v_previous_contact_point:
cut_distance = (v_contact - self.v_previous_contact_point).Magnitude()
f = self.feedrate / cut_distance
self.gcode += "G01 X{:.6f} Y{:.6f} Z{:.6f} A{:.6f} B{:.6f} F{:.6f}\n".format(x,y,z,a,b,f)
else:
f = 0
self.gcode += "G0 X{:.6f} Y{:.6f} Z{:.6f} A{:.6f} B{:.6f}\n".format(x,y,z,a,b)
self.v_previous_contact_point = v_contact
print(x,y,z,a,b)
if u_now == u_max:
break
u_next = u_now + u_step
if u_next > u_max:
u_next = u_max
u_now = u_next
def test_constructor(self):
self.assertEqual(point3(0, 0, 1), point3(gp_Dir(0, 0, 1)))
self.assertEqual(point3(0, 1, 1), point3(gp_Vec(0, 1, 1)))
self.assertEqual(point3(1, 0, 1), point3(gp_Pnt(1, 0, 1)))
self.assertEqual(vector3(0, 0, 1), vector3(gp_Dir(0, 0, 1)))
self.assertEqual(vector3(0, 1, 1), vector3(gp_Vec(0, 1, 1)))
self.assertEqual(vector3(1, 0, 1), vector3(gp_Pnt(1, 0, 1)))
def getPntSectionUp(pnt1, pnt2):
v1 = gp_Vec(pnt1, pnt2)
v1.Scale(0.5)
v2 = gp_Vec(0,0,v1.Magnitude())
pnt = gp_Pnt(pnt1.XYZ())
pnt.Translate(v1)
pnt.Translate(v2)
return pnt
def axs_pln(axs):
pnt = axs.Location()
vx = dir_to_vec(axs.XDirection()).Scaled(100)
vy = dir_to_vec(axs.YDirection()).Scaled(200)
vz = dir_to_vec(axs.Direction()).Scaled(300)
lx = make_edge(pnt, gp_Pnt((gp_Vec(pnt.XYZ()) + vx).XYZ()))
ly = make_edge(pnt, gp_Pnt((gp_Vec(pnt.XYZ()) + vy).XYZ()))
lz = make_edge(pnt, gp_Pnt((gp_Vec(pnt.XYZ()) + vz).XYZ()))
return lx, ly, lz
def display_coord(pnt, vecx, vecy, vecz):
rayx = BRepBuilderAPI_MakeEdge(
pnt, gp_Pnt((gp_Vec(pnt.XYZ()) + vecx * 10).XYZ())).Edge()
rayy = BRepBuilderAPI_MakeEdge(
pnt, gp_Pnt((gp_Vec(pnt.XYZ()) + vecy * 10).XYZ())).Edge()
rayz = BRepBuilderAPI_MakeEdge(
pnt, gp_Pnt((gp_Vec(pnt.XYZ()) + vecz * 10).XYZ())).Edge()
display.DisplayShape(rayx, color='RED', update=False)
display.DisplayShape(rayy, color='GREEN', update=False)
display.DisplayShape(rayz, color='BLUE1', update=False)
def set_obj(meta, xyz, dx, dy, pln_set=[-200, 200, -200, 200], indx=1):
vx = gp_Vec(*dx).Normalized()
vy = gp_Vec(*dy).Normalized()
vz = vx.Crossed(vy)
meta["pnt"] = gp_Pnt(*xyz)
meta["xyz"] = [vx, vy, vz]
meta["pln"] = make_plane(meta["pnt"], meta["xyz"][2], *pln_set)
meta["pts"] = shape_to_pts(meta["pln"])
meta["frm"] = set_wire(meta["pts"])
meta["idx"] = indx
def get_point(bsurf, u, v):
pnt = gp_Pnt()
bx = gp_Vec()
by = gp_Vec()
bsurf.D1(u, v, pnt, bx, by)
bz = bx.Crossed(by)
bx = bx.Normalized()
by = by.Normalized()
bz = bz.Normalized()
return pnt, bx, by, bz
def midpoint(pntA, pntB):
'''
computes the point that lies in the middle between pntA and pntB
@param pntA: gp_Pnt
@param pntB: gp_Pnt
'''
vec1 = gp_Vec(pntA.XYZ())
vec2 = gp_Vec(pntB.XYZ())
veccie = (vec1 + vec2) / 2.
return gp_Pnt(veccie.XYZ())
def read_points(csv_name):
readCSV = pd.read_csv(csv_name, sep=',', header=None, dtype=float)
values = readCSV.values
points = []
for j in range(0, len(values)):
points.append([gp_Pnt(values[j][0]+700,values[j][1],values[j][2]+600),\
gp_Vec(values[j][3],values[j][4],values[j][5]),\
gp_Vec(values[j][6],values[j][7],values[j][8]),\
gp_Vec(values[j][9],values[j][10],values[j][11])])
return points
def drawTrihedron(self, objName, size):
gpPnt = gp_Pnt(0, 0, 0)
gpDir1 = gp_Dir(gp_Vec(0, 0, 1))
gpDir2 = gp_Dir(gp_Vec(1, 0, 0))
geomAxis = Geom_Axis2Placement(gpPnt, gpDir1, gpDir2)
trih = AIS_Trihedron(geomAxis)
trih.SetSize(11)
self._drawNative(objName, trih)
def get_point_on_curve(bcurve, u):
point = gp_Pnt()
tangenty = gp_Vec()
bcurve.D1(u, point, tangenty)
vectorz = gp_Vec(0, 0, 1)
vectorx = tangenty.Crossed(vectorz)
vectorz = vectorx.Crossed(tangenty)
vectorx.Normalize()
tangenty.Normalize()
vectorz.Normalize()
return [point, vectorx, tangenty, vectorz]
def display_coord(frames):
for frame in frames:
[pnt, vecx, vecy, vecz] = frame
rayx = BRepBuilderAPI_MakeEdge(pnt, gp_Pnt((gp_Vec(pnt.XYZ()) +\
vecx*30).XYZ())).Edge()
rayy = BRepBuilderAPI_MakeEdge(pnt, gp_Pnt((gp_Vec(pnt.XYZ()) +\
vecy*30).XYZ())).Edge()
rayz = BRepBuilderAPI_MakeEdge(pnt, gp_Pnt((gp_Vec(pnt.XYZ()) +\
vecz*30).XYZ())).Edge()
display.DisplayShape(rayx, color='RED', update=False)
display.DisplayShape(rayy, color='GREEN', update=False)
display.DisplayShape(rayz, color='BLUE1', update=False)
def second_derivative(h_surf, u=0, v=0):
p1 = gp_Pnt()
pu, pv = gp_Vec(), gp_Vec()
puu, pvv = gp_Vec(), gp_Vec()
puv = gp_Vec()
prop = GeomLProp_SLProps(h_surf, u, v, 1, 1)
GeomLProp_SurfaceTool.D2(h_surf, u, v, p1, pu, pv, puu, pvv, puv)
e0 = pu.Crossed(pv)
pu.Normalize()
pv.Normalize()
e0.Normalize()
puu.Normalize()
pvv.Normalize()
puv.Normalize()
print(p1)
print("pu", pu)
print("pv", pv)
print("e0", e0)
print("puu", puu)
print("pvv", pvv)
print("puv", puv)
first_form = np.array([[pu.Dot(pu), pu.Dot(pv)], [pv.Dot(pu), pv.Dot(pv)]])
secnd_form = np.array([[e0.Dot(puu), e0.Dot(puv)],
[e0.Dot(puv), e0.Dot(pvv)]])
print(first_form)
print(secnd_form)
print(prop.GaussianCurvature())
print(prop.MeanCurvature())
d1, d2 = gp_Dir(), gp_Dir()
prop.CurvatureDirections(d1, d2)
a1 = gp_Ax3()
v1 = dir_to_vec(d1)
v2 = dir_to_vec(d2)
if pu.IsParallel(v1, 1 / 1000):
c1 = prop.MaxCurvature()
c2 = prop.MinCurvature()
print(v1.Dot(pu), v1.Dot(pv))
print(v2.Dot(pu), v2.Dot(pv))
else:
c1 = prop.MinCurvature()
c2 = prop.MaxCurvature()
print(v1.Dot(pu), v1.Dot(pv))
print(v2.Dot(pu), v2.Dot(pv))
print(c1, 1 / c1)
print(c2, 1 / c2)
px = np.linspace(-1, 1, 100) * 100
p1_y = px**2 / c1
p2_y = px**2 / c1
curv1 = curv_spl(px, p1_y)
curv2 = curv_spl(px, p2_y)
def surface_from_curves():
'''
@param display:
'''
# First spline
array = []
array.append(gp_Pnt(-4, 0, 2))
array.append(gp_Pnt(-7, 2, 2))
array.append(gp_Pnt(-6, 3, 1))
array.append(gp_Pnt(-4, 3, -1))
array.append(gp_Pnt(-3, 5, -2))
pt_list1 = point_list_to_TColgp_Array1OfPnt(array)
SPL1 = GeomAPI_PointsToBSpline(pt_list1).Curve()
SPL1_c = SPL1.GetObject()
# Second spline
a2 = []
a2.append(gp_Pnt(-4, 0, 2))
a2.append(gp_Pnt(-2, 2, 0))
a2.append(gp_Pnt(2, 3, -1))
a2.append(gp_Pnt(3, 7, -2))
a2.append(gp_Pnt(4, 9, -1))
pt_list2 = point_list_to_TColgp_Array1OfPnt(a2)
SPL2 = GeomAPI_PointsToBSpline(pt_list2).Curve()
SPL2_c = SPL2.GetObject()
# Fill with StretchStyle
aGeomFill1 = GeomFill_BSplineCurves(SPL1,
SPL2,
GeomFill_StretchStyle)
SPL3 = Handle_Geom_BSplineCurve_DownCast(SPL1_c.Translated(gp_Vec(10, 0, 0)))
SPL4 = Handle_Geom_BSplineCurve_DownCast(SPL2_c.Translated(gp_Vec(10, 0, 0)))
# Fill with CoonsStyle
aGeomFill2 = GeomFill_BSplineCurves(SPL3,
SPL4,
GeomFill_CoonsStyle)
SPL5 = Handle_Geom_BSplineCurve_DownCast(SPL1_c.Translated(gp_Vec(20, 0, 0)))
SPL6 = Handle_Geom_BSplineCurve_DownCast(SPL2_c.Translated(gp_Vec(20, 0, 0)))
# Fill with CurvedStyle
aGeomFill3 = GeomFill_BSplineCurves(SPL5,
SPL6,
GeomFill_CurvedStyle)
aBSplineSurface1 = aGeomFill1.Surface()
aBSplineSurface2 = aGeomFill2.Surface()
aBSplineSurface3 = aGeomFill3.Surface()
display.DisplayShape(make_face(aBSplineSurface1, 1e-6))
display.DisplayShape(make_face(aBSplineSurface2, 1e-6))
display.DisplayShape(make_face(aBSplineSurface3, 1e-6), update=True)
def make_plane(center=gp_Pnt(0, 0, 0),
vec_normal=gp_Vec(0, 0, 1),
extent_x_min=-100.,
extent_x_max=100.,
extent_y_min=-100.,
extent_y_max=100.,
depth=0.):
if depth != 0:
center = center.add_vec(gp_Vec(0, 0, depth))
PL = gp_Pln(center, vec_normal.as_dir())
face = make_face(PL, extent_x_min, extent_x_max, extent_y_min,
extent_y_max)
return face
def midpoint(pntA, pntB):
""" computes the point that lies in the middle between pntA and pntB
Parameters
----------
pntA, pntB : gp_Pnt
Returns
-------
gp_Pnt
"""
vec1 = gp_Vec(pntA.XYZ())
vec2 = gp_Vec(pntB.XYZ())
veccie = (vec1 + vec2) * 0.5
return gp_Pnt(veccie.XYZ())
def reflect(p0, v0, face):
h_surf = BRep_Tool.Surface(face)
ray = Geom_Line(gp_Lin(p0, vec_to_dir(v0)))
uvw = GeomAPI_IntCS(ray.GetHandle(), h_surf).Parameters(1)
u, v, w = uvw
p1, vx, vy = gp_Pnt(), gp_Vec(), gp_Vec()
GeomLProp_SurfaceTool.D1(h_surf, u, v, p1, vx, vy)
vz = vx.Crossed(vy)
vx.Normalize()
vy.Normalize()
vz.Normalize()
v1 = v0.Mirrored(gp_Ax2(p1, vec_to_dir(vz)))
return p1, v1
def midpoint(pntA, pntB):
""" computes the point that lies in the middle between pntA and pntB
Parameters
----------
pntA, pntB : gp_Pnt
Returns
-------
gp_Pnt
"""
vec1 = gp_Vec(pntA.XYZ())
vec2 = gp_Vec(pntB.XYZ())
veccie = (vec1 + vec2) * 0.5
return gp_Pnt(veccie.XYZ())
def make_extrusion(face, length, vector=gp_Vec(0., 0., 1.)):
''' creates a extrusion from a face, along the vector vector.
with a distance legnth. Note that the normal vector does not
necessary be normalized.
By default, the extrusion is along the z axis.
'''
vector.Normalize()
vector.Scale(length)
return BRepPrimAPI_MakePrism(face, vector).Shape()
def test_surface_from_curves(self):
'''Test: surfaces from curves'''
array = []
array.append(gp_Pnt(-4, 0, 2))
array.append(gp_Pnt(-7, 2, 2))
array.append(gp_Pnt(-6, 3, 1))
array.append(gp_Pnt(-4, 3, -1))
array.append(gp_Pnt(-3, 5, -2))
aaa = point_list_to_TColgp_Array1OfPnt(array)
SPL1 = GeomAPI_PointsToBSpline(aaa).Curve()
a2 = []
a2.append(gp_Pnt(-4, 0, 2))
a2.append(gp_Pnt(-2, 2, 0))
a2.append(gp_Pnt(2, 3, -1))
a2.append(gp_Pnt(3, 7, -2))
a2.append(gp_Pnt(4, 9, -1))
bbb = point_list_to_TColgp_Array1OfPnt(a2)
SPL2 = GeomAPI_PointsToBSpline(bbb).Curve()
aGeomFill1 = GeomFill_BSplineCurves(SPL1,
SPL2,
GeomFill_StretchStyle)
SPL3 = Geom_BSplineCurve.DownCast(SPL1.Translated(gp_Vec(10, 0, 0)))
SPL4 = Geom_BSplineCurve.DownCast(SPL2.Translated(gp_Vec(10, 0, 0)))
aGeomFill2 = GeomFill_BSplineCurves(SPL3,
SPL4,
GeomFill_CoonsStyle)
SPL5 = Geom_BSplineCurve.DownCast(SPL1.Translated(gp_Vec(20, 0, 0)))
SPL6 = Geom_BSplineCurve.DownCast(SPL2.Translated(gp_Vec(20, 0, 0)))
aGeomFill3 = GeomFill_BSplineCurves(SPL5,
SPL6,
GeomFill_CurvedStyle)
aBSplineSurface1 = aGeomFill1.Surface()
self.assertTrue(aBSplineSurface1 is not None)
aBSplineSurface2 = aGeomFill2.Surface()
self.assertTrue(aBSplineSurface2 is not None)
aBSplineSurface3 = aGeomFill3.Surface()
self.assertTrue(aBSplineSurface3 is not None)
def test_pipes(self):
'''Test: pipes'''
a1 = []
a1.append(gp_Pnt(-4, 0, 2))
a1.append(gp_Pnt(-5, 1, 0))
a1.append(gp_Pnt(-6, 2, -2))
a1.append(gp_Pnt(-5, 4, -7))
a1.append(gp_Pnt(-3, 5, -12))
xxx = point_list_to_TColgp_Array1OfPnt(a1)
SPL1 = GeomAPI_PointsToBSpline(xxx).Curve()
aPipe = GeomFill_Pipe(SPL1, True)
aPipe.Perform(False, False)
aSurface = aPipe.Surface()
self.assertIsNotNone(aSurface)
E = GC_MakeEllipse(gp_XOY(), 2, 1).Value()
aPipe2 = GeomFill_Pipe(SPL1, E, GeomFill_IsConstantNormal)
aPipe2.Perform(False, False)
aSurface2 = aPipe2.Surface()
aSurface2.Translate(gp_Vec(5, 0, 0))
TC1 = GC_MakeSegment(gp_Pnt(1, 1, 1), gp_Pnt(2, 2, 2)).Value()
TC2 = GC_MakeSegment(gp_Pnt(1, 1, 0), gp_Pnt(3, 2, 1)).Value()
aPipe3 = GeomFill_Pipe(SPL1, TC1, TC2)
aPipe3.Perform(False, False)
aSurface3 = aPipe3.Surface()
aSurface3.Translate(gp_Vec(10, 0, 0))
for _, mode in enumerate([GeomFill_IsConstantNormal,
GeomFill_IsCorrectedFrenet,
GeomFill_IsDarboux,
GeomFill_IsFrenet,
GeomFill_IsGuideAC,
GeomFill_IsGuideACWithContact,
GeomFill_IsGuidePlan,
GeomFill_IsGuidePlanWithContact]):
E = GC_MakeEllipse(gp_XOY(), 2, 1).Value()
aPipe2 = GeomFill_Pipe(SPL1, TC1, TC2, mode)
aPipe2.Perform(False, False)
aSurface2 = aPipe2.Surface()
aSurface2.Translate(gp_Vec(5, 5, 0))
def DisplayVector(self, vec, pnt, update=False):
""" displays a vector as an arrow
"""
if self._inited:
aPresentation = Prs3d_Presentation(self._struc_mgr)
pnt_as_vec = gp_Vec(pnt.X(), pnt.Y(), pnt.Z())
start = pnt_as_vec + vec
pnt_start = gp_Pnt(start.X(), start.Y(), start.Z())
Prs3d_Arrow.Draw(
aPresentation.GetHandle(),
pnt_start,
gp_Dir(vec),
math.radians(20),
vec.Magnitude()
)
aPresentation.Display()
# it would be more coherent if a AIS_InteractiveObject
# would be returned
if update:
self.Repaint()
return aPresentation
def test_gp_Vec_operators(self):
'''
Test gp_Vec division by a float number or an integer
This test fails on py3k with SWIG versions older than 3.0.8
SWIG 3.0.9 fixes this issue.
See https://github.com/tpaviot/pythonocc-core/issues/257
'''
# division by a float
v1 = gp_Vec(2., 2., 2.)
v2 = v1 / 2.
self.assertEqual(v2.Magnitude(), sqrt(3.))
# division by an integer
v3 = gp_Vec(4, 4, 4)
v4 = v3 / 2
self.assertEqual((v4.X(), v4.Y(), v4.Z()), (2, 2, 2))
# adding two gp_Vec
v5 = gp_Vec(1, 2, 3) + gp_Vec(4, 5, 6)
self.assertEqual((v5.X(), v5.Y(), v5.Z()), (5, 7, 9))
# substracting two gp_Vec
v6 = gp_Vec(1, 2, 3) - gp_Vec(6, 5, 4)
self.assertEqual((v6.X(), v6.Y(), v6.Z()), (-5, -3, -1))
def test_bezier_surfaces(self):
'''Test: Bezier surfaces'''
array1 = TColgp_Array2OfPnt(1, 3, 1, 3)
array2 = TColgp_Array2OfPnt(1, 3, 1, 3)
array3 = TColgp_Array2OfPnt(1, 3, 1, 3)
array4 = TColgp_Array2OfPnt(1, 3, 1, 3)
array1.SetValue(1, 1, gp_Pnt(1, 1, 1))
array1.SetValue(1, 2, gp_Pnt(2, 1, 2))
array1.SetValue(1, 3, gp_Pnt(3, 1, 1))
array1.SetValue(2, 1, gp_Pnt(1, 2, 1))
array1.SetValue(2, 2, gp_Pnt(2, 2, 2))
array1.SetValue(2, 3, gp_Pnt(3, 2, 0))
array1.SetValue(3, 1, gp_Pnt(1, 3, 2))
array1.SetValue(3, 2, gp_Pnt(2, 3, 1))
array1.SetValue(3, 3, gp_Pnt(3, 3, 0))
array2.SetValue(1, 1, gp_Pnt(3, 1, 1))
array2.SetValue(1, 2, gp_Pnt(4, 1, 1))
array2.SetValue(1, 3, gp_Pnt(5, 1, 2))
array2.SetValue(2, 1, gp_Pnt(3, 2, 0))
array2.SetValue(2, 2, gp_Pnt(4, 2, 1))
array2.SetValue(2, 3, gp_Pnt(5, 2, 2))
array2.SetValue(3, 1, gp_Pnt(3, 3, 0))
array2.SetValue(3, 2, gp_Pnt(4, 3, 0))
array2.SetValue(3, 3, gp_Pnt(5, 3, 1))
array3.SetValue(1, 1, gp_Pnt(1, 3, 2))
array3.SetValue(1, 2, gp_Pnt(2, 3, 1))
array3.SetValue(1, 3, gp_Pnt(3, 3, 0))
array3.SetValue(2, 1, gp_Pnt(1, 4, 1))
array3.SetValue(2, 2, gp_Pnt(2, 4, 0))
array3.SetValue(2, 3, gp_Pnt(3, 4, 1))
array3.SetValue(3, 1, gp_Pnt(1, 5, 1))
array3.SetValue(3, 2, gp_Pnt(2, 5, 1))
array3.SetValue(3, 3, gp_Pnt(3, 5, 2))
array4.SetValue(1, 1, gp_Pnt(3, 3, 0))
array4.SetValue(1, 2, gp_Pnt(4, 3, 0))
array4.SetValue(1, 3, gp_Pnt(5, 3, 1))
array4.SetValue(2, 1, gp_Pnt(3, 4, 1))
array4.SetValue(2, 2, gp_Pnt(4, 4, 1))
array4.SetValue(2, 3, gp_Pnt(5, 4, 1))
array4.SetValue(3, 1, gp_Pnt(3, 5, 2))
array4.SetValue(3, 2, gp_Pnt(4, 5, 2))
array4.SetValue(3, 3, gp_Pnt(5, 5, 1))
BZ1, BZ2, BZ3, BZ4 = map(Geom_BezierSurface, [array1, array2,
array3, array4])
bezierarray = TColGeom_Array2OfBezierSurface(1, 2, 1, 2)
bezierarray.SetValue(1, 1, BZ1)
bezierarray.SetValue(1, 2, BZ2)
bezierarray.SetValue(2, 1, BZ3)
bezierarray.SetValue(2, 2, BZ4)
BB = GeomConvert_CompBezierSurfacesToBSplineSurface(bezierarray)
self.assertTrue(BB.IsDone())
poles = BB.Poles().Array2()
uknots = BB.UKnots().Array1()
vknots = BB.VKnots().Array1()
umult = BB.UMultiplicities().Array1()
vmult = BB.VMultiplicities().Array1()
udeg = BB.UDegree()
vdeg = BB.VDegree()
BSPLSURF = Geom_BSplineSurface(poles, uknots, vknots, umult, vmult, udeg, vdeg, False, False)
BSPLSURF.Translate(gp_Vec(0, 0, 2))
fp.write("".join(edge_string_list))
# then write header part 2
fp.write(BODY_Part2)
fp.write("</html>\n")
def render(self, server_port=8080, open_webbrowser=False):
''' render the scene into the browser.
'''
# generate HTML file
self.GenerateHTMLFile()
# then create a simple web server
start_server(server_port, self._path, open_webbrowser)
if __name__ == "__main__":
from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakeBox, BRepPrimAPI_MakeTorus
from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_Transform
from OCC.Core.gp import gp_Trsf, gp_Vec
def translate_shp(shp, vec, copy=False):
trns = gp_Trsf()
trns.SetTranslation(vec)
brep_trns = BRepBuilderAPI_Transform(shp, trns, copy)
brep_trns.Build()
return brep_trns.Shape()
box = BRepPrimAPI_MakeBox(100., 200., 300.).Shape()
torus = BRepPrimAPI_MakeTorus(300., 105).Shape()
t_torus = translate_shp(torus, gp_Vec(700, 0, 0))
my_ren = ThreejsRenderer()
my_ren.DisplayShape(box)
my_ren.DisplayShape(t_torus)
my_ren.render()