The MiddlePath node can be used to get the middle path of a pipe-like shape or loft or the middle offset path of a planar face.
Middle path of pipe
Provide the shape and two faces or wires that are the start and stop of the path in the shapes list or as children of the node.
# Created in DeclaraCAD
from declaracad.occ.api import *
from declaracad.parts.display import Axis
enamldef Assembly(Part):
Axis:
pass
Loft: s:
transparency = 0.8
color = 'blue'
solid = True
Circle:
radius = 2
Ellipse:
position = (0, -1, 4)
major_radius = 3
minor_radius = 2
Circle:
position = (0, 2, 10)
radius = 3
MiddlePath:
color = 'red'
shapes = [s, s.topology.faces[1], s.topology.faces[2]]
Planar Middle path
If the first child or first item in the shapes list is a face the MiddlePath node will generate a compund with paths equally distant from the edges as shown below.
# Created in DeclaraCAD
from declaracad.occ.api import *
from declaracad.parts.display import Axis
enamldef Assembly(Part):
Axis:
pass
Cut: slot:
color = '#abc'
transparency = 0.8
Box:
position = (-dx/2, -dy/2)
dx = 50
dy = 100
dz = 2
Box:
position = (-dx/2, -dy/2, 1)
dx = 10
dy = 80
dz = 1
MiddlePath:
shapes = slot.topology.faces[10:11]
