\name{AnnotationFunction-class}
 \docType{class}
 \alias{AnnotationFunction-class}
 \title{

 The AnnotationFunction Class

 }
 \description{

 The AnnotationFunction Class

 }
 \details{

 The heatmap annotation is basically graphics aligned to the heatmap columns or rows.
 There is no restriction for the graphic types, e.g. it can be heatmap-like

 annotation or points. Here the AnnotationFunction class is designed for
 creating complex and flexible annotation graphics. As the main part of the class, it uses
 a user-defined function to define the graphics. It also keeps information of
 the size of the plotting regions of the annotation. And most importantly, it

 allows subsetting to the annotation to draw a subset of the graphics, which

 is the base for the splitting of the annotations.
 
 See \code{\link{AnnotationFunction}} constructor for details.
 }
 \examples{
 # There is no example
 NULL

 }