def ngon_to_face(points: NGon) -> TopoDS_Face:
"""Convert a Ngon to a BRep face with an underlying best-fit surface.
Parameters
----------
points : sequence[point]
Points defining a polygon.
Returns
-------
TopoDS_Face
"""
points = [gp_Pnt(*point) for point in points]
poly = BRepBuilderAPI_MakePolygon()
for point in points:
poly.Add(point)
poly.Build()
poly.Close()
edges = TopologyExplorer(poly.Wire()).edges()
nsided = BRepFill_Filling()
for edge in edges:
nsided.Add(edge, GeomAbs_C0)
nsided.Build()
return nsided.Face()
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()
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
R = Rotation.from_axis_and_angle([1, 1, 0], math.radians(30))
polygon = Polygon.from_sides_and_radius_xy(5, 2)
polygon.transform(R)
# ==============================================================================
# BRep Polygon
# ==============================================================================
points = [gp_Pnt(*point) for point in polygon]
poly = BRepBuilderAPI_MakePolygon()
for point in points:
poly.Add(point)
poly.Build()
poly.Close()
# ==============================================================================
# BRep Filling
# ==============================================================================
edges = list(TopologyExplorer(poly.Wire()).edges())
nsided = BRepFill_Filling()
for edge in edges:
nsided.Add(edge, GeomAbs_C0)
nsided.Add(gp_Pnt(*(polygon.centroid + normal_polygon(polygon))))
nsided.Build()
# ==============================================================================