`fill_circles_aa`

fn def fill_circles_aa(mut canvas: Canvas, centers: List[FPoint], radius: Float64, color: Color)

Fill many equal-radius anti-aliased disks in one call.

Output is identical to calling fill_circle_aa once per center in the same order, including where translucent markers overlap: each band walks the batch in submission order, and bands own disjoint rows.

A radius past the closed-form limit, a canvas transform that is not a similarity, or too little total work each fall back to per-marker calls.

Args:

canvas (Canvas): Canvas to fill into.
centers (List[FPoint]): Sub-pixel center of each marker, in draw order.
radius (Float64): Radius shared by every marker, in pixels.
color (Color): Fill color shared by every marker.

Raises:

fn def fill_circles_aa(mut canvas: Canvas, centers: List[FPoint], radius: Float64, colors: List[Color])

fill_circles_aa with a color per marker – a scatter whose points carry a color scale.

Args:

canvas (Canvas): Canvas to fill into.
centers (List[FPoint]): Sub-pixel center of each marker, in draw order.
radius (Float64): Radius shared by every marker, in pixels.
colors (List[Color]): One color per center, same length as centers.

Raises:

Error: If colors is not the same length as centers.

fill_circle_aa