How to condintionally change the precison level?

I want to conditionally change the precision of the route (higher precision if start and destination are close together, lower precision if they are far apart). I already tried to change it "on the fly", but the route is not recalculated. Is there a recommended way for this?

The issue names no files, tests, or entry points. Start by locating the component's precision option and the route recalculation trigger, then verify how conditional precision based on start and destination distance can be supported. Done means the route recalculates with higher precision for close points and lower precision for distant points.

Written by the indexing model from the issue text.