Remove connectors at chunk boundaries within same component

[joehagmann]

If a single component is split into chunks, there are meaningless connectors at the chunk boundaries. Example covid-19:

corresponding bin2file:

the chunk boundary in the middle (pan coord 2260) is unnecessary

[josiahseaman]

You are correct in thinking this doesn't look good to the user. For clarification, this is a symptom of a desired feature which was added here: graph-genome/component_segmentation#7 where large components get cut in half to fit in multiple files. We're going to need some way of detecting if a split is extraneous.

• If the component.last_bin == chunk.last_bin and departures.length == 0 and next_component.arrivals.length == 0
  • then it's an unnecessary split on chunk boundary and should be rendered as continuous,
  • maybe even change the PangenomeSchematic.js representation to be one long component.