Automattic/node-canvas

Feature: createConicGradient

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#2222 opened on Mar 30, 2023

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FeatureHelp wanted

Description

Feature

This feature is missing from node-canvas. But works fine in all browsers. https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/createConicGradient

Your Environment

  • Version of node-canvas (output of npm list canvas or yarn list canvas): 2.11.0
  • Environment (e.g. node 4.2.0 on Mac OS X 10.8): v18.13.0 on Windows 10 Pro 22H2 19045.2728

Contributor guide

Tech stack
javascriptnodejs
Domain
backend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Understanding of node canvas internalsFamiliarity with Cairo graphics library
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
The issue requests adding `createConicGradient` to node canvas, matching the browser API. The implementation should follow the pattern of existing gradient methods like `createLinearGradient` and `createRadialGradient`. Look at the source file `lib/canvas.js` and the native binding code (likely `src/Canvas.cc` or similar) to understand how gradients are created. The Cairo library supports conic gradients via `cairo pattern create conical`. No linked PRs or comments exist; the work is entirely new and unassigned.