Hi Pascal,

Rings are underdocumented, but safe; the design of collections is not
quite complete and I am trying to discourage unnecessary use of
collections, but you can count on all collections having a "geoms"
attribute for access to members of the collection.

Sean

> Hi,
>
> Some libGEOS C "objects" are not decribed in the Shapely manual, even if
> the
> corresponding Python class exists : Collection or LinearRing for instance.
>
> What does it mean ? Is it only a difference between the documentation and
> the library itself or is there any problem/risk to use these classes ? And
> in this case, what do I do when I call the "intersection" method and I get
> a
> Collection/LinearRing instance ?
>
> Pascal
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