[GRASS-user] v.in.ogr: too many overlaps

[Rich Shepard]

   While importing a polygon file grass7.5svn balked:

"23125 areas represent multiple (overlapping) features, because polygons
overlap in input layer(s). Such areas are linked to more than 1 row in
attribute table. The number of features for those areas is stored as
category in layer 2

"If overlapping is not desired, the input data can be cleaned by snapping
vertices to each other.

"Estimated range of snapping threshold: [1e-09, 1]"

   Please suggest snap parameter(s) to be applied with v.clean and when to
stop cleaning.

Rich