Permutation with 4 basic colors, center black
Permutation at the edge with red, green, blue and yellow (without black and white)
ID=10 Version=28, Permutation #05
Image width in cm: (50 / 100 / 120 / 150)
==> rectangle width in mm: (100.0 / 200.0 / 240.0 / 300.0)
With 4 colors there are 4! = 4 * 3 * 2 * 1 = 24 possibilities of arrangement. By rotating 90 degrees (4x) you will not get a new motif. Therefore the number must be divided by 4.
So you only get 4! / 4 = 3 * 2 = 6 possible combinations.
If you choose black or white for the center, you get 6 * 2 = 12 different motifs.
If you choose 4 colours from red, green, blue, yellow, black and white for the border, there are 15 possible combinations. The remaining 2 colors then remain for the center. This results in a total of 180 possible combinations or 180 different motifs. Each image can then of course be rotated by 90, 180, or 270 degrees. But this does not result in any new motives.
For the time being only black or white and for demonstration another color in the center.
Other combinations can be created on request and upon request.
Note:
15 * 6 * 2 = 180
D in the title means Dark, because B for Black is already taken because of B for Blue.
Further abbreviations:
R: Red / Red
G: Green / Green
B: Blue / Blue
Y: Yellow / Yellow
By color here is meant black and white!
I deal with constructive graphics.
I am probably one of many unknown pioneers of computer graphics. Graphics with a "ph", I insist.
Already at school my student work was constructive. The work afterwards was mainly with ink, ruler and compass. Only for a short time I had also constructed with..
Read more…