Images and figures are always important for scientific communication. Here is some basic information to know on numerical images, in particular, the RGB nature of the standard encoding and other variants: https://e2eml.school/convert_rgb_to_grayscale.html
Inkscape is full of joy! Below are some interesting patterns you can create, and some help on how to learn to master Inkscape with it.
For French reader, you can find some help here: https://www.ds-inkscape.net/category/outils
The first point is to use LaTeX with Inkscape. A toolbox interface for that is given by TexText and can help you make graphs like this one:
How to convert a .png to .svg file with Inkscape: This use-case is particularly helpful if you need to create (and guess what you do!) a numeric signature from a scanned version: https://www.youtube.com/watch?v=21S_aGhyDeY see also https://inkscape.org/doc/tutorials/tracing/tutorial-tracing.html.
Weaving Interlacing in vector graphics is useful for making nice pictures often requires manipulating layers in Inkscape. Layers help create overlaps, occlusions, etc. (see for instance: https://www.youtube.com/watch?v=3ChqcAdTMAU) and is a key tool for vector graphics, combined with the "fill bounded area" tool.
Some advice can be found here and there.
Learn how to use splines to create the symbol :
In connection with Inkscape the software pdftk (on Linux at least) can be used to burst PDFs or merge PDFs together: see e.g.,
pdftk myfile.pdf burst
or
pdftk *.pdf cat output newfile.pdf
Here is an example of the function "Edit\Clone\Clone\Create Tiled Clone...", starting from the image on the left, centering the rotation point on the gray dot, and then applying the techniques with the correct parameter (see https://www.youtube.com/watch?v=YZLwVpeu2-g&ab_channel=cuttingtimes) you get:
Repeat an Object Around a Shape with Inkscape to get something like pattern_along_path.svg
Challenge: Can you replicate this https://ssdesai.wordpress.com/2020/06/30/mandala/ in Inkscape?
See for instance: https://georgefrancis.dev/writing/a-generative-svg-starter-kit/. This requires a bit of JavaScript though...
- https://simpleicons.org/
- https://www.openmoji.org/
- https://scidraw.io/
- https://search.creativecommons.org/
- http://www.clker.com/
- https://openclipart.org/
- https://freesvg.org/
- https://viglino.github.io/font-gis/?fg=earth (icons for maps etc.)
You will find more examples and math art creations here: https://github.com/josephsalmon/Tweets/
- GIMP
- Xournal (for PDFs)