Decorate Heatmap Annotation

Decorate Heatmap Annotation

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

Arguments

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.

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

Value

The function returns no value.

See also

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

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)