track_feature {JBrowseR}

Create a FeatureTrack for a custom JBrowse 2 view

Description

Creates the necessary configuration string for an indexed GFF3 file so that it can be used in a JBrowse custom linear genome view.

Usage

track_feature(track_data, assembly)

Arguments

track_data

the URL to the GFF3 file

assembly

the config string generated by assembly

Details

It is important to note that while only the GFF3 file is passed as an argument, tracks_variant assumes that a GFF3 index of the same name is located with the file

For example:

track_feature("data/features.gff")

Assumes that data/features.gff.tbi also exists.

This is a JBrowse 2 convention, and the default naming output of tabix

For more information on creating an index with tabix, visit https://www.htslib.org/

Value

a character vector of stringified FeatureTrack JSON configuration

Examples

assembly <- assembly("https://jbrowse.org/genomes/hg19/fasta/hg19.fa.gz", bgzip = TRUE)

track_feature("features.gff", assembly)