useBackend

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Creates an annotation backend that stores annotations in React.setState.

See: Annotation

Signature:

useBackend: (initialAnnotations?: Annotation[]) => {
    annotations: Annotation[];
    getAnnotationLabelById: (id: string) => string;
    getAnnotationById: (id: string) => Annotation;
    addAnnotation: (annotation: Annotation) => void;
    deleteAnnotations: (ids: string[]) => void;
    showAnnotations: (ids: string[]) => void;
    hideAnnotations: (ids: string[]) => void;
    updateAnnotation: (annotation: Annotation) => void;
}