Function rechart_clear_of_poles 

pub fn rechart_clear_of_poles(
    model: &mut Model,
    face: &Shape,
    tol: Tolerances,
) -> OgeomResult<Recharted>

Re-chart face in place where it is a sphere face whose trim comes within POLE_MARGIN of a pole of its chart without running through it: the same sphere charted about the axis, among a ball’s candidate axes, whose poles stand furthest from the trim, its trim edges given images on that chart, and the seam and pole edges it needs. The surface, the edges and their curves are unchanged; only the chart and the pcurves are. A face whose trim runs through a pole (a meridian rim) or keeps clear of both is left untouched, read and not changed.

Errors

Whatever reading or building the face reports.