Hi,
If PRESENT is something understandable to humans does the other parameter name need be so cryptic as “P” or “R”? Would it hurt to use “PAST”?
-Jukka Rahkonen-
···
Andrea Aime wrote:
On Wed, Dec 3, 2014 at 8:43 AM, Jody Garnett <jody.garnett@…403…> wrote:
So this is for WMS-T … as in WMS Temporal.
The syntax is clear.
Here are two ideas for quick consideration:
CQL Time Duration
WFS 2.0 has temporal functions which we have dragged into CQL, any advantage to being consistent with the syntax here: http://docs.geoserver.org/latest/en/user/filter/ecql_reference.html#ecql-period
In particular the representation of time period seems nice and terse:
private final static String CONTINUOUS_RELATIVE_PERIOD_H = “P2H/PRESENT”;
private final static String CONTINUOUS_RELATIVE_PERIOD_D = “P10D/PRESENT”;
(There was no duration specified in weeks, I also did not see a representation for PRESENT, NOW … or FIRST or LATEST)
P standard for period, so that would not work. I guess it may may sense to use R (relative?), and get something
like R-2H/PRESENT.
WFS 2.0 FeatureId madness
This is probably a terrible idea, but you may wish to steal language such as FIRST and LATEST above.
The second thing WFS 2.0 has going on is the ability to query FeatureId based on previous, first or by date (see http://docs.geotools.org/latest/userguide/library/opengis/filter.html#identifer).
Any advantage to stealing the language of FIRST, PREVIOUS, etc…?
private final static String CONTINUOUS_RELATIVE_PERIOD_Y = “FIRST/P1Y”;
Hmm… I would not go there, WMS-T often works on a moving window, so FIRST and LATEST change daily or more often,
you never know what they mean.
Cheers
Andrea
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