Skip to main content

BigWigAdapter

Auto-generated from the config schema in the source — see the config guide for concepts. Provided by the wiggle plugin. View source.

Reads BigWig quantitative signal files.

Example usage

{
  type: 'QuantitativeTrack',
  trackId: 'my_track',
  name: 'My track',
  assemblyNames: ['hg38'],
  adapter: {
    type: 'BigWigAdapter',
    uri: 'https://example.com/coverage.bw',
  },
}

JBrowse infers BigWigAdapter and QuantitativeTrack from coverage.bw, and name defaults to the file name. In a config declaring one assembly, assemblyNames comes from there too — see the shortest track.

{
  trackId: 'my_track',
  uri: 'https://example.com/coverage.bw',
  assemblyNames: ['hg38'],
}

Config slots

Adapter slots go inside the track's adapter: "adapter": { "type": "BigWigAdapter", ... }. It also accepts the shorthand keys uri, baseUri in place of writing a location slot out. Slot types (fileLocation, frozen, ...) are explained in the config slot types reference. Slots a base configuration contributes are listed here too, so this table is the whole surface.

SlotDescription
bigWigLocation
fileLocation = { uri: '/path/to/my.bw', locationType: 'UriLocation' }		location of the BigWig file. The file has an index and precomputed zoom levels built in, so there is no separate index to configure and a whole-chromosome view reads summary bins rather than every point.
source
string = ''		added as feature.get('source') on all features
resolutionMultiplier
number = 1		Resolution multiplier applied to every fetch: <1 fetches more points (higher resolution), >1 fetches fewer (e.g. 2 = half as many points)
advanced