The NormalProjection declaration is used to project a wire, path, or design onto a surface. To use it specify face to project onto as the shape and embed all the paths to project as children of the node.
# Created in DeclaraCAD
from declaracad.parts.display import Axis
from declaracad.occ.api import *
enamldef Assembly(Part):
Axis:
pass
Loft: surf:
color = 'gray'
BSpline:
points = [(-5, 0, 1), (-5, 5, 4), (-5, 10, 2)]
BSpline:
points = [(0, 0, 1), (0, 5, 5), (0, 10, 2)]
BSpline:
points = [(5, 0, 1), (5, 5, 4), (5, 10, 2)]
Circle: circle:
color = 'lime'
radius = 5
position = (0, 5, 10)
NormalProjection:
color = 'purple'
shape = surf.topology.faces[0]
Transform:
shape = circle
Surface mapping
NormalProjection can be used along with a surface map to do engraving / machining on uneven surfaces.
This exaggerated example below projects an svg design generated in Inkscape onto a surface map.
NormalProjection:
shape = surf
Svg:
source = '~/Pictures/pawprints.svg'
