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Action:
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Creates a hexagonal pattern with cylindrical symmetry.
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Filename:
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kern/kern_scm/pattern_scm.cxx
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APIs:
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api_hex_cylindrical_pattern
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Syntax:
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(pattern:hex-cylindrical center normal num-angular
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[num-axial=0] [radius=0])
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Arg Types:
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center
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position
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normal
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gvector
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num-angular
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integer
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num-axial
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integer
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radius
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real
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Returns:
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pattern
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Description:
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Creates a two-dimensional hexagonal pattern with cylindrical symmetry.
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center specifies the center position of the circular edge.
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normal specifies the direction of extension.
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num-angular
specifies the number of angular elements in the pattern.
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num-axial specifies the number of axial elements in the pattern.
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radius specifies the distance between pattern elements.
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Example:
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; pattern:hex-cylindrical
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; make a prism
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(define height 1)
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;; height
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(define maj_rad 1)
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;; maj_rad
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(define min_rad 0.5)
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;; min_rad
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(define num_sides 3)
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;; num_sides
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(define prism (solid:prism height
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maj_rad min_rad num_sides))
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;; prism
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; position the prism
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(define origin (position 1 2 3))
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;; origin
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(entity:set-color (point origin) RED)
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;; ()
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(define transform (entity:transform prism
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(transform:axes origin
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(gvector 1 0 0) (gvector 0 1 0))))
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;; transform
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; make a pattern
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(define center (position 6 2 3))
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;; center
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(define normal (gvector 0 1 0))
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;; normal
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(define num-angular 8)
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;; num-angular
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(define num-axial 6)
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;; num-axial
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(define spacing 3)
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;; spacing
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(define pat (pattern:hex-cylindrical
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center normal num-angular num-axial spacing))
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;; pat
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; apply the pattern to the prism
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(define body (entity:pattern prism pat))
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;; body
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