hc_text-HilbertCurve-method: Add text to Hilbert curve

In HilbertCurve: Making 2D Hilbert Curve

Description

Add text to Hilbert curve

Usage

## S4 method for signature 'HilbertCurve'
hc_text(object, ir = NULL, labels, x1 = NULL, x2 = x1, gp = gpar(),
    centered_by = c("interval", "polygon"), ...)

Arguments

object	A HilbertCurve-class object.
ir	an IRanges object that contains positions which correspond to text. The middle point of the interval will be the position 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.
centered_by	how to define the "center" of the interval represented in Hilbert curve. See Details section.
...	pass to grid.text. E.g. you can set text justification by just here.

Details

If centered_by == "interval", the text is added correspoding to the middle of each interval in ir, while if centered_by == "polygon", the text is put in the visual center of the polygon of the interval in the Hilbert curve.

Value

A data frame which contains coordinates (in the 2D space) of text.

Author(s)

Zuguang Gu <[e-mail]>

Examples

hc = HilbertCurve(1, 100, level = 4, reference = TRUE)

x = sort(sample(100, 20))
s = x[1:10*2 - 1]
e = x[1:10*2]
require(IRanges)
ir = IRanges(s, e)

labels = sample(letters, length(ir), replace = TRUE)
hc_text(hc, ir, labels = labels)

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.