Boxes

2015-05-31, post № 34

programming, Pygame, Python, #background, #beautiful, #black, #box, #boxes, #changing, #color, #color change, #colors, #creating, #fancy, #gap, #generates, #generator, #pattern, #pseudo random, #random, #rectangles, #visual

Inspired by a pattern on a storage box I own I decided to try program something simulating it. This program shows variously colored boxes with a black gap in between. You can adjust the box size, the gap size and even how many boxes will appear on the screen (all changeable in the code).
The pattern will be newly generated every half a second.

Prime Spiral

2015-05-30, post № 33

mathematics, programming, Pygame, Python, #around, #around the center, #generates, #generator, #gray, #image, #lines, #pattern, #patterns, #prime, #prime generator, #prime lines, #red, #spiral

Being fascinated by prime numbers I wanted to create a prime number spiral generator myself. It just goes through the numbers from 𝟢 to … and checks if they are prime. If they are prime, this rectangle in the spiral gets lit red, if it is not prime it gets lit dark gray. Because my algorithm for prime checking is very basic, I implemented a performance helper. That way the spiral’s creation will slow down after time (due to the numbers that need to be checked getting bigger and bigger). The really interesting thing is, that — although they may seem random — prime numbers often form lines if shown in such a spiral. To see the comparison I included an image of a randomly (𝟧𝟢 ％ to 𝟧𝟢 ％) lit up board.

Pentecost

2015-05-25, post № 32

art, #animated, #animated gif, #celebrate, #draw, #gif, #Pentecost, #pixel, #pixel art, #pixels, #Whitsun, #Whitsunday, #Whitsuntide

My animated gif regarding Pentecost.

JClock II

2015-05-24, post № 31

programming, Pygame, Python, #around, #around the center, #background, #center, #change, #changing, #circle, #clock, #clock face, #clock time, #clockface, #clocktime, #count, #current time, #GetCirclePos(), #new, #quantity, #sizes, #time.time(), #visualization

This is an alternative clock design. Version two is even prettier to look at.
Instead of a few clock hands spinning their circles, every hour, minute, second and centisecond is represented as differently colored circles on four imagined circles around the center. That way you have a visualization by quantity, not by position.

This clock face would represent 21:46:42.

Colors VI

2015-05-23, post № 30

programming, Pygame, Python, #background, #beautiful, #change, #changing, #color, #color change, #colors, #different colors, #gradient, #image, #images, #png, #saving

This sixth version of my ‘Colors’ program has only a few improvements. At first it uses a different method to change the individual pixels. Instead of using pygame.PixelArray() it calls on the surface .set_at(). Also you get an indicator if it has finished drawing (to be seen in the caption). At last it always — not needing a user input — saves the drawing if it is finished.
To get more information on my ‘Colors’ program, see ‘Colors V’.

Image generation snippets: colors-vi_snippet-1.py, colors-vi_snippet-2.py, colors-vi_snippet-3.py

Graph sim

2015-05-17, post № 29

programming, Pygame, Python, #bar, #bar graph, #bars, #color, #color change, #colors, #different colors, #generates, #generator, #graph, #pseudo random, #random, #WolframAlpha

Thinking of graphs — especially bar graphs — as a pretty piece of art I wanted to create something related. But due to me not having any data I could graph, I decided to just use randomly generated data. It has no real purpose rather than look good.

Shadow

2015-05-16, post № 28

programming, Pygame, Python, #-gon, #around, #around the center, #black, #change, #changing, #circle, #color, #color change, #colors, #controlled, #creating, #grid, #light, #lighting, #lightness, #polygon, #polygons, #random, #randomly assigned colors, #red, #saving, #shadow, #shadows, #tile, #tiles, #tiles.txt, #vector, #vector math, #vectors

Thinking about vectors and polygons a bit more, I came up with an idea to mimic shadows. In this program you can create colorful polygons with no limited quantity of individual points anywhere on the screen. Furthermore you then can move a light source (represented as a yellow circle) to change the polygon’s pitch black shadow.

The shadow can also be modified in that its distance to the polygon can be changed. To understand the shadow’s creation, there is also an option to visualize the path the light would — in reality — go.

Due to the shadow not changing in size (only in distance to its polygon) but rather in distance, I implemented the option to get a grid as the background. That way you more have the impression that the shadow is casted onto another surface beneath the surface containing all the polygons and not floating on the same surface.

To have a nice contrast from the polygons to their shadow, I decided to give every polygon a randomly assigned color by creation.

Lastly the program will save every polygon that has been drawn in a file called tiles.txt. It will be saved in the current working directory (in short cwd). If you create a new polygon or change the color of an existing one, it will automatically be saved.

An example how tiles.txt can look (here for drawing ‘Jblog’ and some triangles): shadow_tiles.txt

Shaper

2015-05-10, post № 27

programming, Pygame, Python, #black, #change, #changing, #monochrome, #monochrome polygon, #mouse, #movement, #moving, #polygon, #pseudo random, #random, #red, #shapes, #shaping

Playing around with randomness I came up with this program which randomly generates various shapes. It starts off with one point in the center which will start randomly moving. By clicking on the screen you can generate new points or remove previous ones. If the number of points gets higher than 𝟤, a monochrome polygon will be displayed (using the pygame.polygon() function).