This medium allows for: undoing, editing, palettes, layering, and sharing.
Drawing is an art form that involves using instruments to create marks on a two-dimensional surface. Traditionally, artists used analog media such as pencils, charcoal or ink. But nowadays I use a pen display with graphical software.
I studied science: drawing fossils, creating maps, and programming a computer. Nowadays I use digital media to make art. The Geographical User Interface (GUI) has democratised creativity!
I bought a pocket computer with a plotter. My next computer was a Mac; it had a graphical interface and printer. Now I also enter spatial data with a stylus, creating images. Thus geometry is computerised.
I employ layering, and each of my digital artworks is original. First I used the raster graphics software MyPaint. Since when, I have been using the vector graphics application Inkscape. These are graphic representation techniques.
Raster graphics
A bitmap is an array of tiny pixels. Most Internet images are raster. This format is compatible, easy, compressible, detailed, and applicable. It's good for digital painting. But pixelation loses quality when scaled up. And high resolution file size can be large.
Vector graphics
Vector images are made of mathematical shapes. Scalable Vector Graphics (SVG) uses shapes, paths, text, and styles. Vectors are scalable; they are visual elements. Geometric primitives are points, lines, paths, polygons, rectangles, ellipses, arcs, Bézier curves, and splines. Points, lines and curves are fundamental geometric objects. Joining line segments forms a polygon. Commands define a primitive, specify coordinates, and set additional properties. Vector graphics make clean illustrations. Simple graphics have small file size. This format is ideal for printing.