[postgis-users] using simplify and snaptogrid for a global coastline plot

[Greg Williamson]

Chris --

chris hinkle wrote:
> Hi gang,
>
> Some background info before I present my questions:
>
> I've been teaching my self PostGIS and GIS in general for that last 
> few weeks.   
>
> My main source of "bootstrapping" education material has been the 
> O'Reilly book, Web Mapping Illustrated, which introduced me to PostGIS 
> and OGR.
>
> My workflow is this:
>
> 1.) Find data on the web
> 2.) Get it into a shapefile somehow
> 3.) ogr2ogr the shapefiles into PostGIS

You can usually load shapefiles directly into postgres with the 
shp2pgsql program that is part of postGIS.

> 4.) ogr2ogr the postgis data into GML files using sql to refine the 
> data and edit the geometry for the specific need.
>
<...snip...>
Unfamiliar with this but you might take scan the archives for this month 
and look for posts about KML and google -- someone provided some 
snippets that may be of interest / relevance.

Certainly preprocessing data is the way to go and between postGIS and 
OGR you've got a lot of tools -- but this is starting to exceed anything 
I can even pretend to now about ...

Best of luck,


Greg Williamson
Senior DBA
GlobeXplorer LLC, a DigitalGlobe company

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