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From "Chris A. Mattmann (JIRA)" <j...@apache.org>
Subject [jira] Commented: (TIKA-443) Geographic Information Parser
Date Mon, 28 Jun 2010 14:24:51 GMT

    [ https://issues.apache.org/jira/browse/TIKA-443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12883159#action_12883159
] 

Chris A. Mattmann commented on TIKA-443:
----------------------------------------

Hey Nick,

I think we need to support both cases (single lat/lon per document as well as many lat/lon
pairs per document). In the case of the former, it's easy, we have:

key: Metadata.LATITUDE
val:  some lat

key: Metadata.LONGITUDE
val:  some lon

And, in the case of the latter, we have:

key: Metadata.LATITUDE
val:  some lat, some lat2, some lat3, some lat n...

key: Metadata.LONGITUDE
val:  some lon, some lon2, some lon3, some lon n...

Because the keys are ordered in the Metadata object, I think that we can make sure they match
up and treat single points the same as for multiple points. It's great to have support for
both on a per Metadata object basis too since many scientific data formats have both scenarios
in them (e.g., NetCDF and HDF typically have arrays of lats and lons, and sometimes, singe
point values as well). 

The reason we need to support both is that distance computation (point/radius, bounding box,
and polygon) would require both scenarios to be supported. I've been thinking that once this
work is prototyped, to integrate Tika with the work in SIS to build out a computational spatial
library. I think Tika could be used to feed in lats/lons into SIS.

Cheers,
Chris


> Geographic Information Parser
> -----------------------------
>
>                 Key: TIKA-443
>                 URL: https://issues.apache.org/jira/browse/TIKA-443
>             Project: Tika
>          Issue Type: New Feature
>          Components: parser
>            Reporter: Arturo Beltran
>         Attachments: getFDOMetadata.xml
>
>
> I'm working in the automatic description of geospatial resources, and I think that might
be interesting to incorporate new parser/s to Tika in order to manage and describe some geo-formats.
These geo-formats include files, services and databases.
> If anyone is interested in this issue or want to collaborate do not hesitate to contact
me. Any help is welcome.

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