Thank you very much. I'll check the list history.
Cheers!
--
Mauricio Miranda
Chief Development Officer
http://www.xoomcode.com
On Nov 2, 2010, at 20:52 PM, George Silva wrote:
> Ohhh, I'm sorry, did not understood that.
>
> The guys at the pgRouting list might have ideas on successfull ca
Ohhh, I'm sorry, did not understood that.
The guys at the pgRouting list might have ideas on successfull cases.
George
On Tue, Nov 2, 2010 at 9:43 PM, Mauricio Miranda wrote:
> Hi George,
>
> I know pgRouting pretty well but that's not what we need. I need a real
> case where PostGIS (with pgRo
Hi George,
I know pgRouting pretty well but that's not what we need. I need a real case
where PostGIS (with pgRouting or another tool) is used. As I said, I must show
a successful project where this technology has been applied.
Any idea?
--
Mauricio Miranda
Chief Development Officer
http://ww
Hello Mauricio,
Check pgRouting:
http://pgrouting.postlbs.org/
PostGIS also has a built-in topology module, but I'm not sure how much
people use it.
George
On Tue, Nov 2, 2010 at 7:46 PM, Mauricio Miranda wrote:
> Does anyone know about a network analysis project built using PostGIS? It
> sho
Hi all,
I am attempting to import and use the Federal Electoral Districts, a
shapefile provided by Elections Canada (http://geobase.ca/geobase/en/
data/admin/index.html). I converted and loaded the shapefile as
follows:
&dol; shp2pgsql -c -W ISO-8859-1 -s 4617 -DI FED_CA_1_0_0_ENG.shp
federal_ri
Also, what is the source SRID of your geometry column(s)? If you're
not sure, check the geometry_columns table, the constraints used in
the DDL, or try:
select distinct st_srid(way) from planet_osm_point;
-Mike
On 2 November 2010 14:09, Torsten Mohr wrote:
> Hello,
>
> (i accidentially posted t
Does anyone know about a network analysis project built using PostGIS? It
should have "open" documentation so I can read about the implementation: how to
create the topologic relationships, how to access the data, how to query and
process the data, etc
I need this stuff to show to the governmen
It appears the grid shift files are missing. These are not necessarily
installed by default.
Are you using http://www.pgrpms.org/ ? Is proj-nad installed? Did you
install proj.4 from source? If so, did you get the ZIP files and put
them in the right place before configuring?
-Mike
On 2 November
Hello,
(i accidentially posted this on the openstreetmap mailing list, but it
belongs here:)
I once got a hint on this mailing list to use a query like this to get the
lat/lon of the world capitals:
A)
select st_X(wayLL), st_Y(wayLL), name from (select
ST_AsText(ST_Transform(way,4326)) as way
Never mind, problem solved.
An ST_WITHIN check kindly helped me figured it out. The problem was not
that it was not a polygon. The problem was, one was inside the other one.
Regards
Jan
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On Tue, Nov 02, 2010 at 03:13:14PM +0100, strk wrote:
> On Mon, Nov 01, 2010 at 04:18:30PM -0700, Ben wrote:
> > 2 - is there any documentation describing how they work (besides the source
> > code)? i'm interested in the kind of statistics you use.
>
> You may find something in postgis-devel a
Dear All,
when trying to insert a polygon into a table from a plperl script by
this command:
my $new_poly = spi_exec_query("INSERT INTO polys1(id,poly)
VALUES($new_id, ST_MakeEnvelope($xmin, $ymin , $xmax, $ymax, 31467));");
I get a
"new row for relation »polys1« violates Check-Constraint
On Mon, Nov 01, 2010 at 04:18:30PM -0700, Ben wrote:
> hello --
>
> i am not a postgis user, but i am interested in range datatypes and gist
> indexing. there are some extensions for postgresql which expose such types
> (temporal, cube, etc.) but as far as i can tell all of them use the default
Thank you very much Maxime.
I knew there was a function like this, just could not remember the name.
Regards
Jan
On 02.11.2010 14:01, Maxime van Noppen wrote:
> Hi,
>
> ST_Difference does the trick.
>
> http://postgis.refractions.net/docs/ST_Difference.html
_
On 11/02/2010 01:48 PM, Jan Saalbach wrote:
> Dear All,
> is there a function to easily subtract a polygon from a polygon. Both
> are rectangles.
>
> The scenario:
> Two overlapping polygons identified by ST_INTERSECTS.
> Creating a third one from the overlapping area via ST_INTERSECTION.
> Subtra
Dear All,
is there a function to easily subtract a polygon from a polygon. Both
are rectangles.
The scenario:
Two overlapping polygons identified by ST_INTERSECTS.
Creating a third one from the overlapping area via ST_INTERSECTION.
Subtract the overlap from the two initial polygons. Which funct
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