def edgeparameter2pt(u, occedge):
'''
u: u parameter of the parameterise edge
type: float
occedge: the edge to be measured
type: occedge
'''
occutil_edge = edge.Edge(occedge)
gppt = occutil_edge.parameter_to_point(u)
return (gppt.X(), gppt.Y(), gppt.Z())
def edgelength(lbound, ubound, occedge):
'''
lbound: lower bound of the parameterise edge
type: float
ubound: upper bound of the parameterise edge
type: float
occedge: the edge to be measured
type: occedge
'''
occutil_edge = edge.Edge(occedge)
length = occutil_edge.length(lbound, ubound)
return length
def edge_midpt(occedge):
"""
This function calcuates the midpoint of an OCCedge.
Parameters
----------
occedge : OCCedge
The edge to be analysed.
Returns
-------
midpoint : pypt
The midpoint of the edge.
"""
occutil_edge = edge.Edge(occedge)
mid_parm, midpt = occutil_edge.mid_point()
return (midpt.X(), midpt.Y(), midpt.Z())
def edge_domain(occedge):
"""
This function fetches the domain of an OCCedge.
Parameters
----------
occedge : OCCedge
The OCCedge to be examined.
Returns
-------
lower bound: float
The lower bound of the OCCedge domain
upper bound: float
The upper bound of the OCCedge domain
"""
occutil_edge = edge.Edge(occedge)
lbound, ubound = occutil_edge.domain()
return lbound, ubound
def edgeparameter2pt(parameter, occedge):
"""
This function calculates the point on the OCCedge from the given parameter.
Parameters
----------
parameter : float
The parameter of the OCCedge.
occedge : OCCedge
The edge to be analysed.
Returns
-------
point on edge : pypt
The point on the edge based on the parameter.
"""
occutil_edge = edge.Edge(occedge)
gppt = occutil_edge.parameter_to_point(parameter)
return (gppt.X(), gppt.Y(), gppt.Z())
def pt2edgeparameter(pypt, occedge):
"""
This function calculates the parameter of the OCCedge from the given point. The length of the edge can be calculated by specifying
two parameters in the edgelength function.
Parameters
----------
pypt : tuple of floats
The point on the OCCedge to be converted to the parameter. A pypt is a tuple that documents the xyz coordinates of a pt e.g. (x,y,z).
occedge : OCCedge
The edge to be analysed.
Returns
-------
parameter : float
The parameter of the point on the OCCedge.
"""
occutil_edge = edge.Edge(occedge)
gppt = construct.make_gppnt(pypt)
parameter, nearest_gppt = occutil_edge.project_vertex(gppt)
return parameter
def project_point_on_infedge(pypt, occedge):
"""
This function projects a point towards the OCCedge. The edge is treated as a vector and it stretched through infinity.
Parameters
----------
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)
occedge : OCCedge
The edge to be projected on.
Returns
-------
Projected point : pypt
The projected point on the edge.
"""
gp_pt = gp_Pnt(pypt[0], pypt[1], pypt[2])
occutil_edge = edge.Edge(occedge)
u, projpt = occutil_edge.project_vertex(gp_pt)
proj_pypt = modify.occpt_2_pypt(projpt)
return proj_pypt
def edgelength(lbound, ubound, occedge):
"""
This function calculates the length of the OCCedge between the lower and upper bound.
Parameters
----------
lbound : float
The lower bound of the OCCedge.
ubound : float
The upper bound of the OCCedge.
occedge : OCCedge
The edge to be analysed.
Returns
-------
length : float
The length of the edge between the upper and lower bound.
"""
occutil_edge = edge.Edge(occedge)
length = occutil_edge.length(lbound, ubound)
return length
def intersect_edge_with_face(occedge, occface, tolerance=1e-02):
"""
This function intersects an OCCedge with an OCCface and obtain a list of intersection points.
Parameters
----------
occedge : OCCedge
The edge to be intersected.
occface : OCCface
The face to be intersected.
tolerance : float, optional
The minimum distance between the edge and face to determine if the they are intersecting, Default = 1e-02.
Returns
-------
list of intersection points : pyptlist
The list of points where the two topologies intersect.
"""
occutil_edge = edge.Edge(occedge)
interptlist = occutil_edge.Intersect.intersect(occface, tolerance)
return interptlist
def edge_domain(occedge):
occutil_edge = edge.Edge(occedge)
lbound, ubound = occutil_edge.domain()
return lbound, ubound
def pt2edgeparameter(pypt, occedge):
occutil_edge = edge.Edge(occedge)
gppt = construct.make_gppnt(pypt)
parameter, nearest_gppt = occutil_edge.project_vertex(gppt)
return parameter
def intersect_edge_with_face(occ_edge, occ_face):
occutil_edge = edge.Edge(occ_edge)
interptlist = occutil_edge.Intersect.intersect(occ_face, 1e-2)
return interptlist
def project_point_on_infedge(occ_edge, pypt):
gp_pt = gp_Pnt(pypt[0], pypt[1], pypt[2])
occutil_edge = edge.Edge(occ_edge)
u, projpt = occutil_edge.project_vertex(gp_pt)
return projpt
def edge_midpt(occedge):
occutil_edge = edge.Edge(occedge)
mid_parm, midpt = occutil_edge.mid_point()
return (midpt.X(), midpt.Y(), midpt.Z())