def create_shape(self):
shape = BRepBuilderAPI_MakePolygon()
for m in re.finditer(r'(\-?\d+\.?\d*),(\-?\d+\.?\d*)\s+',
self.element.attrib.get('points', '')):
x, y = map(float, m.groups())
shape.Add(gp_Pnt(x, y, 0))
return shape.Wire()
def __init__(self, pnts, close=False):
builder = BRepBuilderAPI_MakePolygon()
for p in pnts:
p = CheckGeom.to_point(p)
builder.Add(p)
if close:
builder.Close()
self._w = Wire(builder.Wire())
def create_shape(self):
d = self.declaration
t = self.get_transform()
shape = BRepBuilderAPI_MakePolygon()
for p in d.points:
shape.Add(p.proxy.Transformed(t))
if d.closed:
shape.Close()
curve = self.curve = BRepAdaptor_CompCurve(shape.Wire())
self.shape = curve.Wire()
def by_points(pnts, close=False):
"""
Create polygonal wire by connecting points.
:param collections.Sequence(point_like) pnts: The ordered points.
:param bool close: Option to close the wire.
:return: The new wire.
:rtype: afem.topology.entities.Wire
"""
builder = BRepBuilderAPI_MakePolygon()
for p in pnts:
p = CheckGeom.to_point(p)
builder.Add(p)
if close:
builder.Close()
return Wire(builder.Wire())
def make_closed_polygon(*args):
poly = BRepBuilderAPI_MakePolygon()
for pt in args:
if isinstance(pt, list) or isinstance(pt, tuple):
for i in pt:
poly.Add(i)
else:
poly.Add(pt)
poly.Build()
poly.Close()
result = poly.Wire()
return result
def make_closed_polygon(*args):
poly = BRepBuilderAPI_MakePolygon()
for pt in args:
if isinstance(pt, list) or isinstance(pt, tuple):
for i in pt:
poly.Add(i)
else:
poly.Add(pt)
poly.Build()
poly.Close()
with assert_isdone(poly, 'failed to produce wire'):
result = poly.Wire()
return result
def make_polygon(args, closed=False):
poly = BRepBuilderAPI_MakePolygon()
for pt in args:
# support nested lists
if isinstance(pt, list) or isinstance(pt, tuple):
for i in pt:
poly.Add(i)
else:
poly.Add(pt)
if closed:
poly.Close()
poly.Build()
with assert_isdone(poly, 'failed to produce wire'):
result = poly.Wire()
return result
def evolved_shape():
P = BRepBuilderAPI_MakePolygon()
P.Add(gp_Pnt(0., 0., 0.))
P.Add(gp_Pnt(200., 0., 0.))
P.Add(gp_Pnt(200., 200., 0.))
P.Add(gp_Pnt(0., 200., 0.))
P.Add(gp_Pnt(0., 0., 0.))
wprof = BRepBuilderAPI_MakePolygon(gp_Pnt(0., 0., 0.),
gp_Pnt(-60., -60., -200.))
S = BRepOffsetAPI_MakeEvolved(P.Wire(), wprof.Wire(), GeomAbs_Arc, True,
False, True, 0.0001)
S.Build()
display.DisplayShape(S.Shape(), update=True)
def create_shape(self):
d = self.declaration
t = self.get_transform()
w, h = d.width, d.height
if d.rx or d.ry:
rx, ry = d.rx, d.ry
if not ry:
ry = rx
elif not rx:
rx = ry
# Clamp to the valid range
rx = min(w / 2, rx)
ry = min(h / 2, ry)
# Bottom
p1 = gp_Pnt(0 + rx, 0, 0)
p2 = gp_Pnt(0 + w - rx, 0, 0)
# Right
p3 = gp_Pnt(w, ry, 0)
p4 = gp_Pnt(w, h - ry, 0)
# Top
p5 = gp_Pnt(w - rx, h, 0)
p6 = gp_Pnt(rx, h, 0)
# Left
p7 = gp_Pnt(0, h - ry, 0)
p8 = gp_Pnt(0, ry, 0)
shape = BRepBuilderAPI_MakeWire()
e = d.tolerance
# Bottom
if not p1.IsEqual(p2, e):
shape.Add(BRepBuilderAPI_MakeEdge(p1, p2).Edge())
# Arc bottom right
c = make_ellipse((w - rx, ry, 0), rx, ry)
shape.Add(
BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p2, p3, False).Value()).Edge())
# Right
if not p3.IsEqual(p4, e):
shape.Add(BRepBuilderAPI_MakeEdge(p3, p4).Edge())
# Arc top right
c.SetLocation(gp_Pnt(w - rx, h - ry, 0))
shape.Add(
BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p4, p5, False).Value()).Edge())
# Top
if not p5.IsEqual(p6, e):
shape.Add(BRepBuilderAPI_MakeEdge(p5, p6).Edge())
# Arc top left
c.SetLocation(gp_Pnt(rx, h - ry, 0))
shape.Add(
BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p6, p7, False).Value()).Edge())
# Left
if not p7.IsEqual(p8, e):
shape.Add(BRepBuilderAPI_MakeEdge(p7, p8).Edge())
# Arc bottom left
c.SetLocation(gp_Pnt(rx, ry, 0))
shape.Add(
BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p8, p1, False).Value()).Edge())
shape = shape.Wire()
shape.Closed(True)
else:
shape = BRepBuilderAPI_MakePolygon(gp_Pnt(0, 0,
0), gp_Pnt(w, 0, 0),
gp_Pnt(w, h, 0),
gp_Pnt(0, h, 0), True).Wire()
wire = TopoDS.Wire_(BRepBuilderAPI_Transform(shape, t, False).Shape())
self.curve = BRepAdaptor_CompCurve(wire)
self.shape = wire
def create_shape(self):
attrs = self.element.attrib
x = parse_unit(attrs.get('x', 0))
y = parse_unit(attrs.get('y', 0))
w = parse_unit(attrs.get('width', 0))
h = parse_unit(attrs.get('height', 0))
rx = parse_unit(attrs.get('rx', 0))
ry = parse_unit(attrs.get('ry', 0))
if rx == ry == 0:
shape = BRepBuilderAPI_MakePolygon(
gp_Pnt(x, y, 0), gp_Pnt(x+w, y, 0),
gp_Pnt(x+w, y+h, 0), gp_Pnt(x, y+h, 0),
True
)
return shape.Wire()
elif rx == 0:
rx = ry
elif ry == 0:
ry = rx
# Build the rect
shape = BRepBuilderAPI_MakeWire()
# Bottom
p1 = gp_Pnt(x+rx, y, 0)
p2 = gp_Pnt(x+w-rx, y, 0)
# Right
p3 = gp_Pnt(x+w, y+ry, 0)
p4 = gp_Pnt(x+w, y+h-ry, 0)
# Top
p5 = gp_Pnt(x+w-rx, y+h, 0)
p6 = gp_Pnt(x+rx, y+h, 0)
# Left
p7 = gp_Pnt(x, y+h-ry, 0)
p8 = gp_Pnt(x, y+ry, 0)
# Bottom
shape.Add(BRepBuilderAPI_MakeEdge(p1, p2).Edge())
# Arc bottom right
c = make_ellipse((x+w-rx, y+ry, 0), rx, ry)
shape.Add(BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p2, p3, False).Value()).Edge())
# Right
shape.Add(BRepBuilderAPI_MakeEdge(p3, p4).Edge())
# Arc top right
c.SetLocation(gp_Pnt(x+w-rx, y+h-ry, 0))
shape.Add(BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p4, p5, False).Value()).Edge())
# Top
shape.Add(BRepBuilderAPI_MakeEdge(p5, p6).Edge())
# Arc top left
c.SetLocation(gp_Pnt(x+rx, y+h-ry, 0))
shape.Add(BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p6, p7, False).Value()).Edge())
# Left
shape.Add(BRepBuilderAPI_MakeEdge(p7, p8).Edge())
# Arc bottom left
c.SetLocation(gp_Pnt(x+rx, y+ry, 0))
shape.Add(BRepBuilderAPI_MakeEdge(
GC_MakeArcOfEllipse(c, p8, p1, False).Value()).Edge())
wire = shape.Wire()
wire.Closed(True)
return wire
def get_faceted_L_shape(x, y, z):
pnt_A = gp_Pnt(x + 0, y + 0, z + 0)
pnt_B = gp_Pnt(x +20, y + 0, z + 0)
pnt_C = gp_Pnt(x +20, y +10, z + 0)
pnt_D = gp_Pnt(x + 0, y +10, z + 0)
pnt_E = gp_Pnt(x + 0, y + 0, z +20)
pnt_F = gp_Pnt(x +10, y + 0, z +20)
pnt_G = gp_Pnt(x +10, y +10, z +20)
pnt_H = gp_Pnt(x +0, y +10, z +20)
pnt_I = gp_Pnt(x +10, y + 0, z +10)
pnt_J = gp_Pnt(x +10, y +10, z +10)
pnt_K = gp_Pnt(x +20, y + 0, z +10)
pnt_L = gp_Pnt(x +20, y +10, z +10)
face_1 = make_face_from_4_points(pnt_A, pnt_B, pnt_C, pnt_D)
face_2 = make_face_from_4_points(pnt_B, pnt_C, pnt_L, pnt_K)
face_3 = make_face_from_4_points(pnt_E, pnt_F, pnt_G, pnt_H)
face_4 = make_face_from_4_points(pnt_A, pnt_E, pnt_H, pnt_D)
face_5 = make_face_from_4_points(pnt_G, pnt_F, pnt_I, pnt_J)
face_6 = make_face_from_4_points(pnt_I, pnt_K, pnt_L, pnt_J)
polygon_1 = BRepBuilderAPI_MakePolygon()
polygon_1.Add(pnt_A)
polygon_1.Add(pnt_B)
polygon_1.Add(pnt_K)
polygon_1.Add(pnt_I)
polygon_1.Add(pnt_F)
polygon_1.Add(pnt_E)
polygon_1.Close()
face_7 = BRepBuilderAPI_MakeFace(polygon_1.Wire()).Face()
polygon_2 = BRepBuilderAPI_MakePolygon()
polygon_2.Add(pnt_D)
polygon_2.Add(pnt_H)
polygon_2.Add(pnt_G)
polygon_2.Add(pnt_J)
polygon_2.Add(pnt_L)
polygon_2.Add(pnt_C)
polygon_2.Close()
face_8 = BRepBuilderAPI_MakeFace(polygon_2.Wire()).Face()
sew = BRepBuilderAPI_Sewing()
for face in [face_1, face_2, face_3, face_4, face_5, face_6, face_7, face_8]:
sew.Add(face)
sew.Perform()
return sew.SewedShape()
def make_face_from_4_points(pnt1, pnt2, pnt3, pnt4):
# frist create a closed polygon
poly = BRepBuilderAPI_MakePolygon(pnt1, pnt2, pnt3, pnt4, True).Wire()
# then build the face from the closed wire
return BRepBuilderAPI_MakeFace(poly).Face()
