10-mandala.yaml

# mandala — a twelve-fold template to draw on: guide rings and spokes, a
# flower-of-life rosette in the middle, a double ring of lotus petals, two bead
# rings and an outer frame. Radii are a share of the shorter side (%s, § 8.11),
# so it fills any format. A4.
# Regenerate:  ctrlgrid -d examples/10-mandala.yaml -o out.pdf
version: 1

defs:
  guide: &guide "#c2c8d0"
  petal: &petal "#8aa0b8"
  star:  &star  "#2f5686"

page:
  format: a4
  margin: 16mm

generator: mandala
sectors: 12
outer_radius: 48%s

# The scaffold: evenly spaced guide rings and twelve spokes, left faint.
rings:
  count: 5
  weight: 0.15pt
  color: *guide
spokes:
  inner: 0.05
  weight: 0.15pt
  color: *guide

# A flower-of-life rosette in the centre — one ring of circles, mirrored onto
# the sector bisectors so the petals of the flower interlock.
rosette:
  at: 0.5
  radius: 0.16
  mirror: true
  weight: 0.2pt
  color: *petal

# The motif: pointed lotus petals, one per sector and mirrored onto the
# bisectors — twenty-four leaves, each two arcs from base to tip (§ 7.11).
petals:
  inner: 0.34
  outer: 0.94
  width: 0.12
  mirror: true
  weight: 0.25pt
  color: *star

# Bead rings — dots on a circle. A dense rim of thirty-six, and an inner ring
# of twelve on the spokes.
beads:
  - {at: 0.99, count: 36, size: 0.9mm, color: *star}
  - {at: 0.20, count: 12, size: 1.1mm, color: *petal}

# A faint twelve-sided frame at the rim.
polygons:
  - radius: 0.99
    weight: 0.2pt
    color: *guide