twhiteaker commented on this pull request.
> + +For all geometry types except __point__, in which each geometry contains a single node, when more than one geometry is present, the geometry container variable must have a **`node_count`** attribute that contains the name of a variable indicating the count of nodes per geometry. +The node count is the total nodes in all the parts. + + +For __multiline__, __multipolygon__, and __polygons__ with holes, the geometry container variable must have a **`part_node_count`** attribute indicates a variable of the count of nodes per geometry part. +Note that because multipoint geometries always have a single node per part, the **`part_node_count`** is not required. +The single dimension of the part node count variable should equal the total number of parts in all the geometries. + +For __polygon__ and __multipolygon__ geometries with holes, the geometry container variable must have an **`interior_ring`** attribute that contains the name of a variable that indicates if the polygon parts are interior rings (i.e., holes) or not. +This interior ring variable should contain the value 0 to indicate an exterior ring polygon and 1 to indicate an interior ring polygon. +The single dimension of the interior ring variable should be the same dimension as that of the part node count variable. + +[[complete-multipolygon-example]] +[caption="Example 7.15. "] +.A multipolygon with holes @dblodgett-usgs incorporated a data variable into the example. Scroll to the end of the latest version (as I am typing this) here: https://github.com/dblodgett-usgs/cf-conventions/blob/7768e33e7edff459482e8ef8057ea6b8e015c9eb/ch07.adoc -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/cf-convention/cf-conventions/pull/115#discussion_r145138416
