Convert a list of patch coordinates to qupath annotations

points_to_patches.groovy

import qupath.lib.scripting.QP
import qupath.lib.roi.RectangleROI
import qupath.lib.objects.PathAnnotationObject

points_list = [[0,0]]

def hierarchy = QP.getCurrentHierarchy()

points_list.each {

    def rect = new RectangleROI(it[0].toDouble(), it[1].toDouble(), 100, 100 )
    def annotation = new PathAnnotationObject(rect)

    hierarchy.addPathObject(annotation, false)
}