OptionalamplitudeWavy only. Peak displacement perpendicular to the line
direction. 0 collapses to a straight line. Defaults to
lineWidth (so the wave height matches the line thickness
— a recognisable "fluttery" insulation hatch).
For line / wavy / brick: direction perpendicular to
the line direction, in degrees clockwise from horizontal.
For dot: rotation of the dot grid.
OptionalbrickBrick only. Brick height (perpendicular to the row
direction). Defaults to spacing × 0.5 — a 2:1 brick
aspect ratio matching typical engineering masonry.
OptionalcourseBrick only. Shift between consecutive rows along the
row direction. Defaults to spacing × 0.5 — a half-brick
stagger producing standard running-bond brickwork.
For line / wavy: line thickness.
For dot: dot diameter.
For brick: mortar thickness.
OptionalphaseShift the pattern start position by this many units along
the family's primary axis. Defaults to 0. Useful for
aligning a hatch to a feature edge (wall corner, centerline
start).
For line / wavy: distance between adjacent lines.
For dot: grid pitch (same on both axes).
For brick: brick width along the row direction.
Must be > 0.
OptionaltypeFamily type — "line" (default), "dot", "wavy", or
"brick". See HatchFamilyType.
OptionalwavelengthWavy only. Distance along the line direction for one
complete wave. Defaults to spacing × 2.
One family in a HatchParams. A family represents an infinite repeating pattern primitive — by default parallel lines, but also dots, wavy lines, or a brick lattice depending on type.
Length-valued fields (
spacing,lineWidth,phase,amplitude,wavelength,brickHeight,courseOffset) are all measured in the units indicated by the parent HatchParams.space — pixels for"screen"(default), world units for"world"and"tangent".