Questions tagged [graphical-output]
This challenge involves drawing pictures on a screen or generating image files. For pure ASCII art contests, use [ascii-art] instead. If participants can choose between graphics and ASCII art, use both tags. For images as input, use [image-processing].
361 questions
21
votes
13
answers
1k
views
Draw the Gauss Star (Heptadecagram)
Background
In 1796, 18-year-old Carl Friedrich Gauss proved that a regular heptadecagon can be constructed with compass and straightedge — the first such discovery in over 2,000 years. The stonemason ...
- 371
19
votes
12
answers
2k
views
Make an animated winking smiley 😉
Recently, I've been looking more and more into retrogaming programming, and I saw this nice example from an old GBDK wiki (A tool to make Gameboy games with C, replaced by GBDK-2020):
This example ...
- 937
9
votes
6
answers
963
views
Draw a diagram of a bowline
A bowline is a knot commonly used to tie the end of a rope around something.
Your task is to draw one.
The image you generate must contain a topologically correct bowline knot. It must be drawn in ...
- 8,074
14
votes
3
answers
400
views
Draw the caustics in a cup
If you have ever consumed liquid from a shallow cup in sunlight, you may have noticed a shape like the following at the bottom:
You might notice a nephroid shaped bright outline, a brighter area on ...
- 14.4k
27
votes
24
answers
5k
views
Draw the Flag of Greenland
The flag of Greenland consists of two red sections and two white sections. I'll provide a diagram below, but also give a textual description. The background of the flag is a rectangle that is 18 units ...
- 3,863
20
votes
12
answers
3k
views
Mexican Hat Challenge, #メキシカンハットチャレンジ
The hashtag #メキシカンハットチャレンジ* appeared on my X/twitter feed today. Japanese hackers have been drawing the "Mexican Hat Potential" 3D curve on all sorts of ...
- 4,629
21
votes
22
answers
2k
views
Randomly color the words
Inspired by this X post.
Write a program or function that takes a string as input and prints or otherwise renders the text with each word in a random color, e.g.:
The input will be a string of ...
- 12k
8
votes
7
answers
3k
views
Waiting girl's face
In June 2023, at Xenium Party 2023, a 4KB intro created by Wacek, Luke, and Jammer for the Commodore 64 was presented, featuring the face of a waiting girl.
The task is to write the shortest possible ...
16
votes
10
answers
1k
views
Draw a Regular Reuleaux Polygon
Related: Draw A Reuleaux Triangle!, Draw a regular polygon
A Reuleaux polygon is a curve of constant width made up of circular arcs of constant radius. The most well-known Reuleaux polygon is the ...
- 12.6k
12
votes
1
answer
488
views
Plot the ground path of a satellite
If you model a satellite as a free point orbiting a body, you can pretty easily see it has 6 degrees of freedom: three for the X, Y, and Z position, and three for the X, Y, and Z velocity. However, ...
- 1,631
14
votes
4
answers
1k
views
Visually arrange multi-day events on a calendar
The arrangement algorithm
I think I've determined the algorithm that Google Calendar uses to visually arrange day-long and longer events at the top of the "Week" view (you may have an ...
- 3,823
19
votes
5
answers
3k
views
Draw a Fibonacci Swoosh
Title courtesy of Greg Martin
For this challenge, I'll define an arc of size \$k\$ as a single piece of a sine wave with a length of \$k\$ units and an height of \$\frac{k}{4}\$ units:
And I'll ...
- 46.2k
6
votes
7
answers
868
views
Displaying Inky the ghost from Pac-Man using ANSI escape codes
Challenge
Display Inky the ghost from Pac-Man using only ANSI escape codes.
Here's a text representation of the image
...
- 2,309
7
votes
3
answers
313
views
Inscribe a maximal regular polygon into a square image
You want to draw a regular polygon but you have limited space! In this challenge, you should draw a polygon with n sides which is as big as possible for a given square container image.
I found ...
- 14.2k
15
votes
21
answers
3k
views
Output an image
Interestingly, although there are challenges that work with images, there is no challenge to simply output an image. This is that challenge
Goal: output an image in the shortest possible code.
Output: ...
- 345
