decorate_dimnames: Decorate the heatmap dimension names
In eilslabs/ComplexHeatmap: Making Complex Heatmaps

Description Usage Arguments Details Value Author(s) Examples

Decorate the heatmap dimension names

1 2	decorate_dimnames(heatmap, code, slice = 1, which = c("column", "row"), envir = new.env(parent = parent.frame()))

`heatmap`	name of the heatmap
`code`	code that adds graphics in the selected heatmap body
`slice`	index of row slices in the heatmap
`which`	on rows or on columns?
`envir`	where to look for variables inside `code`

There is a viewport for row names and column names in the heatmap. This function contructs the name of the viewport, goes to the viewport by seekViewport and applies code to that viewport.

If you know the dimensions of the matrix, it is simple to calculate the position of every row name or column name in the heatmap. E.g., for the column column, the i^th name is located at:

1 2	# assume nc is the number of columns unit((i-0.5)/nc, "npc")

The function returns no value.

Zuguang Gu <z.gu@dkfz.de>

set.seed(123)
mat = matrix(rnorm(100), 10)
rownames(mat) = letters[1:10]
colnames(mat) = LETTERS[1:10]
Heatmap(mat, name = "mat", km = 2)

decorate_dimnames("mat", {
    grid.rect(gp = gpar(fill = "#FF000080"))
}, which = "row", slice = 2)