decorate_annotation: Decorate Heatmap Annotation
In zhongmicai/complexHeatmap: Make Complex Heatmaps

Description Usage Arguments Details Value Author(s) See Also Examples

Decorate Heatmap Annotation

1	decorate_annotation(annotation, code, slice = 1, envir = new.env(parent = parent.frame()))

`annotation`	Name of the annotation.
`code`	Code that adds graphics in the selected heatmap annotation.
`slice`	Index of the row slices or the column slice in the heatmap.
`envir`	Where to look for variables inside `code`.

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, runs code to that viewport, and finally goes back to the original viewport.

The function returns no value.

Zuguang Gu <z.gu@dkfz.de>

https://jokergoo.github.io/ComplexHeatmap-reference/book/heatmap-decoration.html

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)