The maximum distance that vertices can move when snapped.
If the snap radius is zero, then vertices are snapped together only if
they are identical. Edges will not be snapped to any vertices other
than their endpoints, even if there are vertices whose distance to the
edge is zero, unless split_crossing_edges() is true.
The maximum distance that vertices can move when snapped.
If the snap radius is zero, then vertices are snapped together only if they are identical. Edges will not be snapped to any vertices other than their endpoints, even if there are vertices whose distance to the edge is zero, unless split_crossing_edges() is true.
REQUIRES: snap_radius() <= kMaxSnapRadius