hc_centered_text-HilbertCurve-method: Add text to the center of the block

In HilbertCurve: Making 2D Hilbert Curve

Description

Add text to the center of the block

Usage

## S4 method for signature 'HilbertCurve'
hc_centered_text(object, ir = NULL, labels, x1 = NULL, x2 = NULL, gp = gpar(), ...)

Arguments

object	A HilbertCurve-class object.
ir	an IRanges object that contains positions which correspond to text. The middle points of the intervals will be the positions of the text.
labels	text corresponding to intervals in ir.
x1	if start positions are not integers, they can be set by x1.
x2	if end positions are not integers, they can be set by x2.
gp	graphic parameters for text. It should be specified by gpar.
...	pass to grid.text. E.g. you can set text justification by just here.

Details

If the interval is long enough that it represents as a block in the 2D space, the corresponding label is put approximately at center (or at least inside) of the block.

Please use hc_text,HilbertCurve-method directly.

Value

NULL

Author(s)

Zuguang Gu <[e-mail]>

See Also

It is used in hc_map,GenomicHilbertCurve-method to put chromosome names in the center of chromosomes.

Examples

hc = HilbertCurve(1, 10)
hc_rect(hc, x1 = c(1, 3, 7), x2 = c(3, 7, 10), gp = gpar(fill = 2:5))
hc_centered_text(hc, x1 = 1, x2 = 3, labels = "A")
hc_centered_text(hc, x1 = 3, x2 = 7, labels = "B")
hc_centered_text(hc, x1 = 7, x2 = 10, labels = "C")

Example output

Loading required package: grid
Loading required package: IRanges
Loading required package: BiocGenerics
Loading required package: parallel

Attaching package: 'BiocGenerics'

The following objects are masked from 'package:parallel':

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

The following objects are masked from 'package:stats':

    IQR, mad, sd, var, xtabs

The following objects are masked from 'package:base':

    Filter, Find, Map, Position, Reduce, anyDuplicated, append,
    as.data.frame, basename, cbind, colMeans, colSums, colnames,
    dirname, do.call, duplicated, eval, evalq, get, grep, grepl,
    intersect, is.unsorted, lapply, lengths, mapply, match, mget,
    order, paste, pmax, pmax.int, pmin, pmin.int, rank, rbind,
    rowMeans, rowSums, rownames, sapply, setdiff, sort, table, tapply,
    union, unique, unsplit, which, which.max, which.min

Loading required package: S4Vectors
Loading required package: stats4

Attaching package: 'S4Vectors'

The following object is masked from 'package:base':

    expand.grid

Loading required package: GenomicRanges
Loading required package: GenomeInfoDb

HilbertCurve documentation built on Nov. 8, 2020, 8:05 p.m.