JSONObject annotation = null;
if(canvasInfo.has("ANNOTATION")){
annotation = canvasInfo.getJSONObject("ANNOTATION");
AnnotationOperator annotationOperator = new AnnotationOperator();
annotationOperator.fromJSON(annotation);
JSONArray positionArrayAnnotation = annotation.getJSONArray("POSITION");
this.addOperator(positionArrayAnnotation.getInt(0), positionArrayAnnotation.getInt(1), annotationOperator);
AnnotationConnection annotationConnection = new AnnotationConnection(visualEditor, annotationOperator,op);
}
}