Re: [dxwg] Spatial coverage [RSC]

>From the `locn` documentation (https://www.w3.org/ns/locn) for the Property *geometry*:

```
:Resource locn:geometry [ 
  a sf:Point; 
  gsp:asWKT "<http://www.opengis.net/def/crs/OGC/1.3/CRS84> Point(-0.001475 51.477811)"^^gsp:wktLiteral 
] .
```

So, given the domain constrains of `gsp:asWKT`, the blank node is a `gsp:Geometry` as well as an `sf:Point` (and an `sf:Geometry`). The range value for `locn:geometry` is a `locn:Geometry` so, a `locn:Geometry` == `gsp:Geometry`. But there is no domain value for `locn:geometry` so we can't say that in this example the `:Resource` is equivalent to a `gsp:Feature`, which is what the use of `gsp:geometry` would make it.

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Received on Wednesday, 28 February 2018 21:54:57 UTC