A poster series: four events, one design (studio 6)¶
One function draws a poster for any event, so the posters look like a family. f.variations() draws all four side by side on one sheet, to compare them. Press K to keep the sheet: a numbered picture, a copy of this file and a record of the seed go into a folder called studio. The same picture is written without the studio words in examples/studios/06_poster_series_before.py.
How it works¶
- poster(event) draws one poster on the whole A4 page, as if it were alone: a grid of spots, the title, and the date on a band. f.grid(4, 6) and grid.span() give its cells and its text areas.
- The band runs to the edges of the page, past the margin: f.area() makes it from f.ground, the whole page.
- spot(colour) is a function that returns a mark, so every event gets its own colour of spot. place(..., anchor="center", width=...) sizes each spot to its cell.
- f.variations(poster, columns=2, event=[...]) calls poster() once for each event and shrinks each poster into a labelled cell. Every cell starts from the same random seed, so the spots fall in the same cells on every poster.
- f.random_seed(2026) fixes that seed, so the sheet is the same every time.
- f.keep() saves the sheet with a note and the settings given, in the studio folder.
Make it yours¶
- Add a fifth event to EVENTS. The sheet makes room for it.
- Change 0.55 in poster() to make the spots thicker or thinner on the ground.
- Change the seed in f.random_seed() to scatter the spots differently.
- Change the second argument of f.grid() in poster() and see the whole series change.
The code¶
Copy it into a file and run it.
"""A poster series: four events, one design (studio 6)
One function draws a poster for any event, so the posters look like a family. f.variations() draws
all four side by side on one sheet, to compare them. Press K to keep the sheet: a numbered picture,
a copy of this file and a record of the seed go into a folder called studio. The same picture is
written without the studio words in examples/studios/06_poster_series_before.py.
How it works:
- poster(event) draws one poster on the whole A4 page, as if it were alone: a grid of spots, the
title, and the date on a band. f.grid(4, 6) and grid.span() give its cells and its text areas.
- The band runs to the edges of the page, past the margin: f.area() makes it from f.ground, the
whole page.
- spot(colour) is a function that returns a mark, so every event gets its own colour of spot.
place(..., anchor="center", width=...) sizes each spot to its cell.
- f.variations(poster, columns=2, event=[...]) calls poster() once for each event and shrinks each
poster into a labelled cell. Every cell starts from the same random seed, so the spots fall in
the same cells on every poster.
- f.random_seed(2026) fixes that seed, so the sheet is the same every time.
- f.keep() saves the sheet with a note and the settings given, in the studio folder.
Make it yours:
- Add a fifth event to EVENTS. The sheet makes room for it.
- Change 0.55 in poster() to make the spots thicker or thinner on the ground.
- Change the seed in f.random_seed() to scatter the spots differently.
- Change the second argument of f.grid() in poster() and see the whole series change.
"""
import funground as f
# event: (paper, ink, accent, date)
EVENTS = {
"Book fair": ("#264653", "#f4f1de", "#e9c46a", "12 - 14 March"),
"Science week": ("#1d3557", "#f1faee", "#e63946", "3 - 7 June"),
"Music night": ("#3c1642", "#fdf0d5", "#f4a261", "21 June"),
"Sports day": ("#0b3d2e", "#f0efeb", "#90be6d", "9 September"),
}
def spot(colour, ink):
"""A ring with a dot in it, as a mark centred on its own (0, 0)."""
with f.mark() as m:
f.no_fill()
f.stroke(colour)
f.stroke_width(6)
f.circle(0, 0, 40)
f.no_stroke()
f.fill(ink)
f.circle(0, 0, 12)
return m
def poster(event):
paper, ink, accent, date = EVENTS[event]
f.background(paper)
grid = f.grid(4, 6, gutter=f.mm(4))
mark = spot(accent, ink)
for cell in grid[:16]: # the top four rows
if f.random() < 0.55:
mark.place(cell.cx, cell.cy, anchor="center", width=cell.width * f.random(0.35, 1))
title = grid.span(0, 4, cols=4)
f.fill(ink)
f.text_style("bold")
f.text_size(54)
f.text_align("left", "bottom")
f.text(event, title.left, title.bottom)
footer = grid.span(0, 5, cols=4)
band = f.area(f.ground.left, footer.top - f.mm(3), f.ground.width, f.ground.bottom - footer.top + f.mm(3))
f.no_stroke()
f.fill(accent)
f.rect(band.left, band.top, band.width, band.height) # full bleed: from edge to edge of the page
f.fill(paper)
f.text_style("normal")
f.text_size(24)
f.text_align("left", "top")
f.text(date + " · Town hall · all welcome", footer.left, footer.top)
def setup():
f.size("A4", margin=f.mm(12))
f.random_seed(2026)
def draw():
f.background("#e9e5dc")
f.variations(poster, columns=2, event=list(EVENTS))
def key_pressed():
if f.key == "k":
f.keep("the series so far", events=len(EVENTS))
f.run()