@open-draw/schema

Shared structural types and pure geometric primitives for the OpenDraw canvas engine.

@open-draw/schema provides zero-dependency TypeScript types (ShapeId, Bounds, Camera, ShapeRecord, Snapshot) and pure half-open geometric functions (boundsContain, boundsUnion, boundsIntersect, pointInBounds).

Installation

npm install @open-draw/schema

Example Usage (10 lines)

import { boundsOf, boundsUnion, boundsContain, pointInBounds } from '@open-draw/schema';

const frame = boundsOf(0, 0, 800, 600);
const card = boundsOf(100, 100, 200, 150);

// Fast, half-open geometric evaluations [x, x+width) × [y, y+height)
const isContained = boundsContain(frame, card); // true
const isPointInside = pointInBounds({ x: 150, y: 150 }, card); // true
const unionBounds = boundsUnion(frame, boundsOf(700, 500, 300, 200));

Semver Statement

From version 0.1.0 forward, @open-draw/schema types and functions are frozen. Changes require a minor version deprecation cycle.

License

MIT © Chandu4221