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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: [gislist] Search for an ArcView extension to perform filtering
of spatial and time data |
| Date: |
06/29/2006 01:25:01 PM |
| From: |
Quantitative Decisions |
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At 07:15 PM 6/28/2006 +0200, Antonio de la Cruz wrote:
>We are looking for an ArcView extension ...
>We've got lots of points with dates and coordinates. These points are
>spreaded in the 2D space. We want to select only the points that are
>inside of a defined spatial buffer for every point and also those in a
>time sequence.
This is straightforward in many GISes, as other respondents have pointed
out. That fact is unlikely to help someone who clearly states they need an
ArcView solution. With ArcView there are many approaches and it seems they
are no more complicated. You could first spatially join the buffer theme
to the point theme, as a preliminary matter. Selecting the points is then
done using a query. No programming or additional software ("extension") is
necessary. Alternatively, without needing a spatial join, you could
perform two queries in succession: one is a theme-on-theme query to obtain
the points inside the buffer, followed by a query based on the time frames.
--Bill Huber
Quantitative Decisions
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