[postgis-users] trace back

[Andy Colson]

On 2/19/2013 12:35 PM, Jonatan Malaver wrote:
> Hello,
>
>    Let’s say I have 3 parcel centroids with one feature in common. How
> would I do a trace back to the common feature between those points?
> Also, how can I do a flood analysis?
>
> Thanks,
>
> Jonatan Malaver
>
> Assistant Engineer of Electrical and Cable Operations
>
> Shrewsbury Electric & Cable Operations
>
> 100 Maple Avenue
>
> Shrewsbury, MA 01545
>
> Office: 508.841.1520
>
> Mobile: 774.262.0437
>
> Fax: 508.842.9267
>
> jon.malaver at shrewsburyma.gov <mailto:jon.malaver at shrewsburyma.gov>
>
>
>
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That's pretty vague.  So you have parcel points, and not polygons?  In a 
table called ParcelPoints?

What is this feature?  Is it a column in table ParcelPoints?  Or is it 
a point in a different table?  Is it a polygon?  Is it in a table or are 
you hard coding it in wkt?  (like "POINT(42 42)")

-Andy