ImageDrawPieslice

A chord is a filled curve with a flat bottom. A pieslice is the same angle range but filled all the way to the center - an actual wedge of a pie, with an outline and a fill. ImageDrawPieslice draws exactly that, and it's the node you want for pie charts, donut segments (minus the center), progress rings, or any "slice of a circle" graphic.

How it works

Same Allor draw pipeline: RGBA canvas, PIL ImageDraw.pieslice, supersample by SSAA, downscale with method, output a single IMAGE tensor. The wedge is defined by a bounding box (normalized 0–1 coordinates) plus a start/end angle, and it has both fill_* and outline_* controls like ImageDrawEllipse.

Inputs that matter:

• width / height - canvas size, default 256×256.
• start_x / start_y, end_x / end_y - the bounding box as 0–1 fractions of the canvas. Defaults 0,0 → 1,1 span the whole thing (a square box makes a circle).
• start / end - angle range in degrees (0–360), PIL-style: measured from 3 o'clock, increasing clockwise. Default 0 → 240 draws a three-quarter wedge.
• outline_size - outline stroke width, default 1; set 0 for a fill only.
• outline_red / green / blue / alpha - outline color, default black.
• fill_red / green / blue / alpha - fill color, default white.
• SSAA (default 4) and method (default lanczos).

How it differs from Chord

Same bounding box, same angles - but Chord connects the arc's endpoints with a straight line, while Pieslice connects both ends to the center of the ellipse. For a full 0→360 range, Pieslice gives you a filled disc; Chord gives you a circle outline with a line across the middle. Pick by shape, not by name.

The gotcha

Output is RGBA with a transparent background, like the whole draw family - the wedge floats on a checkerboard in Preview. Perfect for compositing a slice over an image, but if you wanted a backdrop, composite onto a container. And remember the default wedge is 240°, not a full circle - set end to 360 for a complete disc.

Installing Allor

Part of the Allor Plugin (Nourepide/ComfyUI-Allor), ~90 nodes from early 2024:

cd ComfyUI/custom_nodes
git clone https://github.com/Nourepide/ComfyUI-Allor
cd ComfyUI-Allor
pip install -r requirements.txt

Restart, or search "Allor Plugin" in ComfyUI Manager - the more reliable route given the pack's history of manual-install import errors. Dependencies are rembg + onnx; drawing needs no models.

Gotchas that apply to the whole pack

The repo was rebased to strip images from history (shrank ~344×), so auto-update can occasionally break - the README's update-troubleshooting docs cover it; delete-and-reclone is the blunt fix. [Allor] console lines at startup are the pack writing config.json and checking updates, not an error.