decorate_annotation {ComplexHeatmap} | R Documentation

## Decorate the heatmap annotation

### Description

Decorate the heatmap annotation

### Usage

    decorate_annotation(annotation, code, slice, envir = new.env(parent = parent.frame()))

### Arguments

`annotation` | name of the annotation
`code` | code that adds graphics in the selected heatmap body
`slice` | index of row slices in the heatmap
`envir` | where to look for variables inside `code`

### Details

There is a viewport for every column annotation and row annotation. This function contructs the name of the viewport, goes to the viewport by `seekViewport` and applies code to that viewport.

### Value

The function returns no value.

### Author(s)

Zuguang Gu <z.gu@dkfz.de>

### Examples

    set.seed(123)
    ha1 = HeatmapAnnotation(df = data.frame(type = rep(letters[1:2], 5)))
    ha2 = rowAnnotation(point = anno_points(runif(10), which = "row"))
    Heatmap(matrix(rnorm(100), 10), name = "mat", km = 2,
        top_annotation = ha1) + ha2
    decorate_annotation("type", {
        grid.circle(x = unit(c(0.2, 0.4, 0.6, 0.8), "npc"),
            gp = gpar(fill = "#FF000080"))
    })
    decorate_annotation("point", {
        grid.rect(gp = gpar(fill = "#FF000080"))
    }, slice = 2)

[Package ComplexHeatmap version 1.20.0 Index]