R: Set Position for Zoom-in Plot

RCircos.Set.Zoom.Plot.Positions {RCircos} | R Documentation

## Set Position for Zoom-in Plot

### Description

Set plot position for zooming-in plot by selecting index of default plot positions. The zoomed plot will be aligned with the original plot position such as gene position or a cytoband. The zoom area was defined as fraction of circle circumference, default is 1/8.

### Usage

    RCircos.Set.Zoom.Plot.Positions(zoom.info=NULL, total.genes=11,
        area.length=0.25, fixed.width=FALSE, gene.width=NULL)

### Arguments

`zoom.info` | A vector with chromosome name, start and end position to be zoomed.
`total.genes` | Non-negative integer from 1 ~ maximum number of genes to be plotted. The maximum number of genes is calculated based on track height and will be adjusted inside the function.
`area.length` | Non-negative numeric, for better layout, it must be smaller than or equal to 1/4 (quarter of the circumstance).
`fixed.width` | Logic, if the plot witdth for each data point is fixed or not.
`gene.width` | Non-negative integer, number of units for gene width.

### Value

Numeric vector for index of RCircos.Base.Position

### Author(s)

Henry Zhang

### Examples

    ## Not run:
    library(RCircos)
    data(UCSC.HG19.Human.CytoBandIdeogram);

    RCircos.Set.Core.Components(
    	cyto.info=UCSC.HG19.Human.CytoBandIdeogram,
    	chr.exclude=c("chrX", "chrY"),
    	tracks.inside=10, tracks.outside=0)

    zoom.info <- c("chr1", 10000, 50000)
    zoom.pos <- RCircos.Set.Zoom.Plot.Positions(zoom.info)

    ## End(Not run)

[Package RCircos version 1.2.0 Index]