Where in the 109 square each stroke begins, as a function of its rank k/n, and how often the next start lies above and to the left of the one before it.
These are frequencies in one KanjiVG snapshot. A position is a coordinate in that file. It does not say that the order is the one a hand must use.
Each cell is a count of later strokes. Higher is a smaller y. Left is a smaller x. The cell at higher and to the left is the above-left count.
Rank tenth
Later strokes
Above-left
Share
Six characters
Stroke 1, the middle stroke, and the last stroke
Coordinates are hundredths of the KanjiVG square. The origin is the top left, and y grows downward. For 一, stroke 1 and the last stroke are the same stroke, and there is no middle stroke.
Character
Strokes
Stroke 1 x
Stroke 1 y
Middle
Middle x
Middle y
Last x
Last y
Above-left
Click a plate to replay. With reduced motion the finished character stays still. A mark appears at the start of each stroke as that stroke is drawn, and it stays. The mark just drawn is indigo. Earlier starts stay cinnabar. The mark uses the stored coordinates, each rounded to a hundredth.
Start of a stroke already drawn
Start of the stroke just drawn
KanjiVG · CC BY-SA 3.0
What this shows
Stroke diagrams: KanjiVG, Ulrich Apel et al., CC BY-SA 3.0, from commit 70a0b7ae0c18ceb5cb358274b029cce0234a43bc of github.com/KanjiVG/kanjivg. The plate files are unmodified copies in site/assets/kanjivg/. Jōyō index: the list used on the Gallery.