> I say, go ahead. At least your experiences can prime the pumps of the
> design process. Easier than designing in a vacuum.
I think we need two new relations, and one modifier:
encloses Data is range, term is point/range
within Data is point, term is range
Encloses finds items where the term is enclosed by the item. Eg
countries encloses "washington dc" -> "USA"
Within is the other way round:
cities within "USA" -> [long list of US cities]
Partial means that the enclosing isn't necessarily complete. For example
search for countries that enclose partially an area around the great lakes
will return USA and Canada, even though neither enclose the area fully.
geo.countryCoordinates encloses "37-00-00N,101-54-00W"
Find me countries that fully enclose the point
geo.countryCoordinates encloses "37-00-00N,101-54W 37-00-30N,101-54-30W"
Find me countries that fully enclose the area
geo.countryCoordinates encloses/partial "..."
Find me countries that have at least some overlap with the area
Also applicable to time:
war.battleTimes encloses "1350-05-08T00:00:00"
Find me battles which were happening at the given time
war.battleTimes encloses/partial "1350-05-08T00:00:00 1350-05-09T00:00:00"
Find me battles that have some overlap with the given duration
I'm unsure about the utility of notWithin/notEncloses. It's possible to
generate them using boolean not, but you need an 'alwaysMatches' for the
other boolean operand.
There's a bazillion access points in the geo profile. Most of which I
don't understand, and hopefully not to offend anyone, but most of which
don't look useful. eg Browse Graphic File Description (3139) or Universal
Polar Stereographic (3436)
Useful to me would be:
arc [eg range of directions]
Additional Weather indexes:
[visibility = distance]
distance_vertical [ = vertical visibility]
[velocity = wind speed]
[direction/arc = wind direction]
,'/:. Rob Sanderson ([log in to unmask])
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