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].
343
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String to Image
A bit of background:
When I first learned about Brainf*ck, one of the first things I did was to write a Java application that would take in a string and create a, somewhat, optimized program to print ...
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Remove an unobstructed rectangle
This image was made by overlaying 7 differently colored rectangles on top of each other:
The black and maroon rectangles are unobstructed, that is, no other rectangles are above them.
Write a program ...
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Drawing an Image Based on a Trace of its Hue
Introduction
Local genius Calvin's Hobbies recently challenged us to trace the hue of an image.
It is recommended to read his challenge beforehand, but to highlight the main points:
The trace of hue ...
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Tracing the Hues of an Image
Load an image into this stack snippet and move your mouse over it. A black curve that follows the hue angle, starting at your cursor point, will be drawn:
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Sort all the pixels of an image by the number of occurrences
Input
The name of a file in the raster graphics format of your choice. The chosen format must support at least 8 bits per channel and 3 channels.
Output
A file in the same format, with the same ...
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Summing colored graphs
In some cases, often in physics, you have to sum graphs. Your challenge is to write, in a language of your choice, a program or function that takes multiple graphs as images, calculates all possible ...
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Writing code for three tasks
When you run your program first, it should print an integer sequence. The
second run should print the 'Mary had a little lamb' song. The third run should
produce an ASCII image file.
Scoring
Your ...
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15
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2
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ICS Maritime Flag alphabet
The International Code of Signals flag alphabet is used by ships for communication, particularly for static signals.
Your challenge is to write a program or function that will take a string from ...
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Sometimes I need a Lossless Screenshot Resizer
Sometimes I need to write more documentation than just comments in code. And sometimes, those explanations need screenshots. Sometimes the conditions to get such a screenshot are so weird that I ask a ...
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Fifty Shades of Grey
Boys and girls are excited to see Fifty Shades of Grey on the silver screen, we just want to code without being bothered, so here's a challenge to pick our brain.
You have to:
Print on the screen ...
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Warhol these pictures [closed]
We've all seen the famous painting of Marilyn Monroe created by Andy Warhol.
Let's try to replicate that effect with the usual suspects.
Your task is to write a program/programs that do as many as ...
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The Great, White, North!
Eh!
You know, the problem with us Canadians is that sometimes, after a long day of moose hunting and dam repairing, we forget our way back to our cabins! Wouldn't it be great if our handy laptop (...
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Go and make it starry
In this contest you have to write a program, that accepts a black and white pixel image, and tries to alter it, such that the white shape forms star domain, with as few changes as possible.
Allowed ...
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Computer Generated Textured Wall Paint
The paint on the walls in my room has a random, almost fractal-like, 3-dimensional texture:
In this challenge you will write a program that generates random images that look like they could be part ...
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Output 2015 as QR code
Mission is simple. Just output number 2015 as QR code and write it to file named newyear.png in PNG format. Code must be valid any day, so maybe you shall not use ...
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Image Battle of Colours
CONGRATULATIONS to @kuroineko for the best entry and winning the 200 bounty from @TheBestOne (excellent sportsmanship!).
Write a program to colour as much of an image as possible before opposition ...
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Draw A Snowflake
Joe lives at the Bahamas. It is winter. His children are disappointed that there is no snow. Joe needs to make snow for his children. Fortunately, he has a 3-d printer. He plans to make snowflakes ...
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Draw Sri Yantra
Challenge:
Draw Sri Yantra.
How to:
There are different ways to draw it. All include many steps. If you think you can draw it without following the linked steps scroll below for the elements you ...
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9
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Draw the Warm Welcome Secret Hat
Winter Bash 2014 is on its prime and don't we all love the hats? Especially the secret hats!
So why not draw one of secret hats?
The challenge
Your task is to draw the Warm Welcome Hat in proportion, ...
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4
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Paint by Numbers
You're given a true colour image. Your task is to generate a version of this image, which looks like it was painted using paint-by-numbers (the children's activity, not nonograms). Along with the ...
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9
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Program a Racing Car
CONGRATULATIONS to @kuroineko. Wins the bounty for excellent speed (672 moves) on the Gauntlet track.
LEADER:* Nimi scoring a lightweight 2129. Other entries are larger but showing some serious speed.
...
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votes
5
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Create icy avatar images for the winter season
It's winter, and the time of year has come for it to start getting cold (and for strange colorful headcloths to start appearing... soon). Let's write some code to make avatar pictures and other images ...
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Numbers as Circular Graphics
First, study this puzzle to get a feel for what you will be producing.
Your challenge is to write a program or function which will output a circular graphic like the ones from the puzzle, given a (...
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Short drawing programme
You just invited a liberal arts major to your house and you're telling him/her
"You know, I am a great programmer and I can do x and y and z..."
S/he quickly gets bored and asks you:
"If you ...
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4
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Tiling, given vertex configuration
Task
The task is to tile polygons, given a vertex configuration.
Scoring
Your score is equal to the "complexity level" your submission reaches. Complexity levels are cumulative, meaning that to ...
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3
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Place a Carcassonne tile
The board game
In the board game "Carcassonne" players place tiles by matching their edges and earn the highest scores through creating large contiguous areas of terrain. The following are (roughly) ...
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Graphical Representation of Koch Snowflake
Generate a Koch Snowflake
A Koch snowflake is a triangle that for each n, another equilateral point is added in the middle of each side: http://en.wikipedia.org/...
user10766
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Square, Circle, Triangle, ...Gear?
Using Algodoo and Paint I made these six 300×300 monochromatic images of four convenient shapes:
This class of images has the following properties:
They are always 300×300 pixels, monochromatic ...
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5
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Mondrian painting description language
This challenge consists in coding an interpreter for a Mondrian painting description language (MPDL).
Language definition
The language operates on a stack of rectangles.
A rectangle is defined by ...
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1
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Program an Artistically Rich Comic Strip [closed]
The Challenge
Program a comic strip. As artistically rich and detailed as you can possibly make it, so long as it complies with the following rules:
the comic must be your own original work, not a ...
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5
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The Most Complex Chinese Character
Challenge
You must output the Chinese character for biáng. Your program must not access any external sources and must exactly reproduce this SVG in every way. Note that the image below is just a gif ...
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votes
2
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The Mirror Maze Mania
Puzzle
There are some mirrors located throughout a grid. A ray of light enters the grid from some position. It travels through the grid in a straight line trying to escape. On encountering with a ...
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votes
11
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Draw the South Korean flag
When I stumbled upon this question I remembered that I had also once seen precise rules for the construction of the South Korean flag. And this is quite a different construction.
Source: Wikipedia
...
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Animating the Separation of Fluids by Density
Let the characters 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ represent the particles of 36 immiscible fluids, each more dense than the last. So the ...
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8
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Pixel art, episode 2: Display the map 1-1 of Super Mario Bros
Last challenge (Pixel-art, episode 1: display Super Mario) was just a training... (and you completed it in amazing ways, thanks!)
This time, you have to work a little bit more. You have to display ...
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Draw a Golden Spiral!
Given a number n, you must output a golden spiral with the number of quarter turns being n.
The spiral must be completely black ...
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votes
31
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Pixel-art, episode 1: display Super Mario
it's a-me!
Today's task is simple: write a program, or a function that displays the idle small Mario sprite, from Super Mario Bros, on NES, over a blue background.
Any kind of entry is valid as long ...
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1
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Draw a Fractal in Under 200 Characters [closed]
After noticing all the fractal submissions/questions, I thought it would be fun to start a contest where everyone submits their favourite fractal.
The Contest
Generate a fractal in under 200 ...
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3
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Generate Realistic Maps
I drew this map of the regions of an imaginary word in a few minutes in MS Paint:
I think that being able to generate maps like this programmatically would be really cool.
Challenge
Write a program ...
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votes
3
answers
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9 Holes of Code Golf - Kickoff
There has already been a 9 Hole Challenge (and another one here), but that was soooo last year. And besides, I have only been around for 2 months (although it seems like forever). And it is ...
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votes
3
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Create xkcd-Style Narrative Charts
In one of the more iconic xkcd strips, Randall Munroe visualised the timelines of several films in narrative charts:
(Click for larger version.)
Source: xkcd No. 657.
Given a specification of the ...
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2
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Construct n-gons with a ruler and compass
The task is to draw a regular polygon of n sides using only a compass and an unmarked ruler.
Input (n) is one of the following 10 numbers: 3, 4, 5, 6, 8, 10, 12, 15, 16, 17.
Method: Because you only ...
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1
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Shubbles and Smoles - Part I
The Setup
Consider an oddly-shaped box containing 29 numbered cells as shown in Fig. 1 below.
Inside this 2D box are two species of square-shaped animals: shubbles and smoles. Fig. 1 (a) shows some ...
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1
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Ray-trace a shiny sphere
I downloaded POV-ray and rendered this shiny metal sphere 90s style:
Your task is to do the same thing, but to do it by implementing the rendering engine yourself in as few bytes as possible. You don'...
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votes
2
answers
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Tension on a Graph, Part II: A Rubber Band
This is the second of two challenges about "pulling functions taut". Here is the slightly simpler Part I.
Let's drive m nails into a board at positions (x1, y1) to (xm, ym). Tie a rubber band to the ...
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votes
3
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Paint a still life (or a moving one) - draw an image in the Game of Life
You are given as input a greyscale image. Your task is to find a static or looping pattern in Conway's Game of Life that resembles the input image as closely as possible.
Your output can be either a ...
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0
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Stitch a picture [closed]
NOTE: This question is currently in the SANDBOX. Please bear this in mind before adding new answers.
I have a large collection of fine art. My toddler is learning to use scissors and glue; lately ...
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4
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Draw an Apollonian Gasket
Given three mutually tangent circles, we can always find two more circles which are tangent to all three of those. These two are called Apollonian circles. Note that one of the Apollonian circles ...
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1
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Spiral Polygons
Draw a series of connected polygons like the one shown above.
However, what the above picture does not show is the spiral formed by consecutive vertexes:
The limitation of these is that there is ...
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11
votes
5
answers
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Tangent Polygon Extensions
Draw something that looks like this:
In more precise terms, draw a circle of radius r, with n evenly-spaces tangent lines of length l. Connect the ends of these lines to form a new n-sided regular ...
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