[postgis-devel] PostGIS 1.1.0 - call for closeup

Christoph Spoerri cspoerri at cavtel.net
Sun Dec 18 19:19:49 PST 2005


For the LRS function set, it would be nice to incorporate also some functions 
that calculate the M values.

I developed 2 - 3 functions which could be used for that purpose. Let me know 
if you want to incorporate them.

Christoph


On Tuesday 13 December 2005 07:00, strk at refractions.net wrote:
> Updates on the TODO list for 1.1.0.
>
> Dropped items
> -------------
>
> I've dropped the special SRID=-1 handling as I think
> it needs more discussion (Markus, patch is welcome for
> the centralization of match check).
>
> OGC polygon constructors have been implemented.
>
> Regression tests have been improved.
>
> Upgrade mechanism *is* better.
>
> Added items
> -----------
>
> Added a generic LRS functions to the list
> as it would be nice to be about complete on
> that rather then partial as we probably are.
>
> So we're left with (comments below each item):
> ---------------------------------------------
>
> - LRS functions
>
>   What's missing from the available set ?
>
> - LineMerge and Polygonize* interfaces for JTS
>
>   is anybody actually using the JTS interface ?
>
> - Selectivity estimation code merge (+- pgsql-8.0.0)
>
>   no comment, will leave this to interested parties
>
> - Fix invalid stats computation
>
>   When stats canno be computed (no rows in table, for example)
>   the old stats will be kept. This means that - for example -
>   estimated_extent() could return a big BOX even on empty table,
>   and vacuum won't fix this (you'll need to add valid shapes in
>   order for the stats computer to generate valid stats).
>
> - MakeValidShape() to remove consecutive vertexes and any eventual
>   other cleanup aimed at making pgsql2shp produce "valid" Shapefiles.
>
>   This needs a list of shapefile requirements. Anyone ?
>   Maybe we can just add a RemoveRepeatedPoints() function
>   meanwhile (note that simplify(geom,0) would already do this
>   and more (ie: remove all intermediate points in a straight line).
>
> --strk;
>
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