Derivations
Home-made mathematical derivations, used when no published source covers the need exactly. Each file: statement and domain, steps each citing a read source, cross-check, check table (writing). ID: DERIV-<file-name>.
| ID | Subject |
|---|---|
DERIV-local-radius-clamp | Local proportional clamping of corner radii (ADR-0007) |
DERIV-regular-polygon-fit | Regular polygon fitted uniformly in a box |
DERIV-turning-angle | Turning angle at a contour vertex (EN-003) |
DERIV-fillet-setback | Setback of a corner fillet, s = r · tan(|τ|/2) (EN-004) |
DERIV-fillet-arc | Tangent points, center and SVG flags of a corner fillet (EN-006, EN-007) |
DERIV-free-shape-stretch | Free shape stretched by its width and height from the top-left of its box, without loss (F09) |
DERIV-turned-shape | A shape turned about the center of its box, the angle from 0 to 359, kept in place when edited (F04) |
DERIV-arc-bounding-box | Straight box of a contour of segments and fillet arcs, as getBBox (F04) |
DERIV-round-shape | A circle or a capsule as a rectangle rounded by half its smaller side; its conversion (F10, moved to E14, research note 0010) |
DERIV-stretched-polygon | A polygon stretched to its box, sides equal while its corners keep half their regular turn, then a plain stretch (F06) |