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From "Martin Desruisseaux (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SIS-8) Build a common SIS data container for spatial data
Date Mon, 01 Jul 2013 11:32:19 GMT

    [ https://issues.apache.org/jira/browse/SIS-8?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13696744#comment-13696744
] 

Martin Desruisseaux commented on SIS-8:
---------------------------------------

In my understanding, this task is basically about creating an implementation of OGC/ISO concept
of "Feature", and their geometry objects.
                
> Build a common SIS data container for spatial data
> --------------------------------------------------
>
>                 Key: SIS-8
>                 URL: https://issues.apache.org/jira/browse/SIS-8
>             Project: Spatial Information Systems
>          Issue Type: New Feature
>          Components: Geometry objects, Storage
>            Reporter: Chris A. Mattmann
>            Assignee: Chris A. Mattmann
>             Fix For: 0.4
>
>
> The QuadTreeNode has the concept of a data container per node in the QTree, but I'd like
to extend this to a general SIS spatial data type. This would in part be motivated by e.g.,
[1], where the suggestion is something like:
> {quote}
> Any measurement we take in Earth and environmental sciences, although this is often ignored,
has a spatio-temporal reference. A spatio-temporal reference is determined by (at least) four
parameters:
> 1. geographic location (longitude and latitude or projected X,Y coordinates);
> 2. height above the ground surface (elevation);
> 3. time of measurement (year, month, day, hour, minute etc.);
> 4. spatio-temporal support (size of the blocks of material associated with measurements;
time interval of measurement);
> {quote} 
> [1] http://www.lulu.com/items/volume_67/8010000/8010854/5/print/Hengl_2009_GEOSTATe2c1_f.pdf

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