Domain objects

Tracks

required methods

• getFeatures(chr, bpStart, bpEnd)
• draw (options)
• computePixelHeight (features)

optional methods

• menuItemList(popover)
• popupDataWithConfiguration (config)
• popupMenuItemList (config)
• altClick (genomicLocation, referenceFrame, event)
• postInit() -- return a promise resolved to self

new track pattern (if you want to inherit from TrackBase)

Feature Source

FeatureTracks use a "FeatureSource" object to fetch features as required.

required methods

• getFeatures (chr, bpStart, bpEnd, bpPerPixel, windowFunction)

optional methods

• getFileHeader()

Bam Reader

Used by a "BamSource".

required methods

• readAlignments(chr, start, end)