@allmaps/annotation/dist/schemas/annotation/annotation.0.js

Functions for generating and parsing IIIF georeference annotations

import { z } from 'zod';
import { PointSchema, ResourceTypeSchema, PointGeometrySchema, TransformationSchema, ContextSchema } from '../shared.js';
const svg = /^<svg\s+width="\d+"\s+height="\d+"\s*>\s*<polygon\s+points="\s*(-?\d+(\.\d+)?,-?\d+(\.\d+)?\s+){2,}-?\d+(\.\d+)?,-?\d+(\.\d+)?\s*"\s*\/>\s*<\/svg>$/;
export const SvgSelectorSchema = z.object({
    type: z.literal('SvgSelector'),
    value: z.string().regex(svg)
});
export const TargetSchema = z.object({
    source: z.string().url(),
    service: z
        .array(z.object({
        '@id': z.string().url(),
        type: ResourceTypeSchema
    }))
        .length(1),
    selector: SvgSelectorSchema
});
export const FeaturePropertiesSchema = z.object({
    pixelCoords: PointSchema
});
export const BodySchema = z.object({
    type: z.literal('FeatureCollection'),
    transformation: TransformationSchema.optional(),
    features: z.array(z.object({
        type: z.literal('Feature'),
        properties: FeaturePropertiesSchema,
        geometry: PointGeometrySchema
    }))
});
export const AnnotationSchema = z.object({
    id: z.string().optional(),
    type: z.literal('Annotation'),
    '@context': ContextSchema.optional(),
    motivation: z.string().default('georeferencing').optional(),
    target: TargetSchema,
    body: BodySchema
});
export const AnnotationPageSchema = z.object({
    id: z.string().optional(),
    type: z.literal('AnnotationPage'),
    '@context': ContextSchema.optional(),
    items: z.array(AnnotationSchema)
});