Hi Nicolas,
Thanks for pointing Dandrigo towards the GPX driver for GDAL - I
didn't know it existed to be honest so saw your reply with interest.
Would you mind, if possible, giving a sample line or two about how
someone could create a new table in PostGIS from the GPX please? The
examples in the
public | spatial_ref_sys | table | nicolas
public | track_points| table | nicolas
public | tracks | table | nicolas
public | waypoints | table | nicolas
(6 lignes)
Nicolas
On 4 November 2014 10:52, James David Smith james.david.sm...@gmail.com
wrote:
Hi Nicolas
Google the function st_astext . Should do what you want. Alternatively you
can use st_x and st_y.
Cheers
//JDS
On 14 Jul 2014 22:02, e...@pwwinc.net wrote:
Hello,
I am attempting to store some gps coordinates that i collected for a
geospatial db in precision ag. I created a table with a
inter_line
UNION ALL
SELECT * FROM diff_line
)
SELECT the_geom,
count(*)
FROM all_lines
GROUP BY the_geom)
Best wishes
James
On 25 April 2014 08:56, James David Smith james.david.sm...@gmail.com wrote:
Thanks guys, I'll give that a crack later.
//JDS
On 25 Apr 2014 08:33, Rémi Cura remi.c
James David Smith james.david.sm...@gmail.com:
Hey all,
I decided to push ahead with trying to make a table for this
mini-project, rather than rely on QGIS styles. I can explain why if
anyone is interested. However when I run the query that Hugues hepled
with, I get the error:
ERROR
-04-28 11:40 GMT+02:00 James David Smith james.david.sm...@gmail.com:
Hey Remi,
I don't understand what you mean? Why do I need to translate my data?
Thanks
James
On 28 April 2014 10:25, Rémi Cura remi.c...@gmail.com wrote:
I'm obsessed with precision,
so I would say translate your data
). By the way, if all that you want is darker colours in QGIS,
you could perhaps just play around with the opacity settings for the lines.
Åsmund
On Thu, Apr 24, 2014 at 5:22 PM, James David Smith
james.david.sm...@gmail.com wrote:
Thanks for the reply Hugues. Much appreciated. I've replaced
Hi all,
A bit of advice please. I have a table of about 250,000 linestring.
They represent peoples routes on roads around London. I would like to
use them in QGIS now to show the most used roads by making them a
darker colour. So to do this I feel I need to do some sort of grouping
of the
AS (
SELECT * FROM inter_line
UNION ALL
SELECT * FROM diff_line
)
SELECT geom, count(*) FROM all_lines
GROUP BY geom
-Message d'origine-
De : postgis-users-boun...@lists.osgeo.org
[mailto:postgis-users-boun...@lists.osgeo.org] De la part de James David Smith
Hi all,
Apologies for cross-posting this to the RPostrgeSQL and PostGIS mailing
lists, but I'm not sure where the problem lies.
I am using the RPostgreSQL package of R to connect to my installation of
PostgreSQL/PostGIS. I want to retrieve some coordinates from my database
and run the below
On 3 December 2013 15:55, Lee Hachadoorian lee.hachadooria...@gmail.comwrote:
On Tue, Dec 3, 2013 at 5:23 AM, James David Smith
james.david.sm...@gmail.com wrote:
Hi all,
Apologies for cross-posting this to the RPostrgeSQL and PostGIS mailing
lists, but I'm not sure where the problem lies
,1000);
Cheers,
Rémi-C
2013/11/15 James David Smith james.david.sm...@gmail.com
Hey Remi,
I've actually managed to get the file 'ukmajorroads' already and have
loaded it into my database. There are 395356 rows in the database. There is
a field called 'geom' and I have built an index
.
Cheers,
Rémi-C
2013/11/26 Mike Toews mwto...@gmail.com
On 26 November 2013 06:04, James David Smith
james.david.sm...@gmail.com wrote:
2) Now I buffer it:
SELECT ST_Buffer(
ST_GeomFromText(
'LINESTRING(555936.152 200920.58202,555938.31202
Apologies. I think I've just answered this myself. It's the
'endcap=flat join=round' bit isn't it. It's not doing what I am
expecting it to do. Though I'm not quite sure how to fix it yet.
On 25 November 2013 17:04, James David Smith
james.david.sm...@gmail.com wrote:
Hi there,
Some code
PM, James David Smith wrote:
Hi Remi/all,
I realise I'm digressing slightly from the point, but this seems
related. This seems strange to me:
I check the geometry type of a table of what I think are linestrings
(roads):
ukroads=# SELECT COUNT(*), geometrytype(geom) FROM ukrds GROUP
)?
If it is not too long, we will go on and cut the lines so that for every
road, we keep the part of the lines that are inside the road_buffer.
(I have to leave now, tomorrow)
Cheers,
Rémi-C
2013/11/13 James David Smith james.david.sm...@gmail.com
Hey Remi,
I don't quite get what the query you
Thanks both. Geometries now fixed.
The query 'CREATE TABLE lines_for_each_road' has now been set
running. Will report back when it's done. I suspect it may take a
while!
James
On 15 November 2013 11:03, Sandro Santilli s...@keybit.net wrote:
On Fri, Nov 15, 2013 at 11:50:42AM +0100, Rémi
many geoms do you have in ukmajrdbuffer?
Cheers,
Rémi-C
2013/11/15 Rémi Cura remi.c...@gmail.com
Hey Sandro,
Thanks for this, it is at least twice faster =)
Cheers,
Rémi-C
2013/11/15 James David Smith james.david.sm...@gmail.com
Thanks both. Geometries now fixed.
The query
ukmajrdbuffer
).
Cheers,
Rémi-C
2013/11/15 James David Smith james.david.sm...@gmail.com
Hey.
Yes, it's done. Was just getting some lunch! :-)
select count(*) from lines_for_each_road
Result = 187033
I have also just ran 'VACUUM ANALYZE' on the tables
'lines_for_each_road' as well
it run during the week end?
Cheers,
Rémi-C
2013/11/15 James David Smith james.david.sm...@gmail.com
Hey Remi,
Do you think before I try running the big query you have just sent me,
that I should go back and try to get the original file of uk roads? I
mean the very original file that has
...@gmail.com wrote:
Still is a shame :
with proper data we should have some result with about one hour i guess.
Cheers,
Rémi C
2013/11/15 James David Smith james.david.sm...@gmail.com
Remi,
Ok. Cool. I've set the below query running. On Monday I will also
attempt to get the original road lines
a function on big data when you have not
tested it fully (including scaling behavior) on small data.
Cheers
Rémi-C
2013/11/11 James David Smith james.david.sm...@gmail.com
Hi all,
Would appreciate some advice on the best way to accomplish this please.
Our situation is that we have a single
, where the number of points is 500km * 50 line/km * 1000km * 50
line/km
Hope it helps,
Cheers,
Rémi-C
2013/11/13 James David Smith james.david.sm...@gmail.com
Hey Remi,
Thanks for your reply. So in your mind you think we should have a
database of say 300 polygons, and then we run
.
If we do the N-S and E-W lines solution that you suggest, I don't
think that this will work will it?
Thanks
James
On 13 November 2013 11:49, James David Smith
james.david.sm...@gmail.com wrote:
Hi Remi,
Thanks so much for this detailed response. Your idea about creating
the lines
a primary key then if you use it)
Of course I didn't test this query, but you should be able to use it easily.
Cheers,
Rémi-C
2013/11/13 James David Smith james.david.sm...@gmail.com
Hi Remi,
Apologies. One more thing which I am not sure about. We need the
final grid of points
Hi all,
Would appreciate some advice on the best way to accomplish this please.
Our situation is that we have a single polygon which has been created
by buffering all of the major roads in the UK. Projection is OSGB36
(27700). Obviously it's quite a big polygon.
-- SELECT st_area(geom) FROM
Dear all,
Until today I hadn't appreciated that PostGIS now supports use of 4D
geometry storage (x, y, time, z). I have a NetCDF file that stores
data in a similar way, and would like to bring it into PostGIS instead
for use with my other data. In order to do this I need to understand
how to use
. I am not sure why you are having issues there... I
don't know why I said to do -d because you are right, it's not a valid option.
-Original Message-
From: postgis-users-boun...@lists.osgeo.org
[mailto:postgis-users-boun...@lists.osgeo.org] On Behalf Of James David Smith
Sent
On 12 August 2013 12:50, Wilkins, Brian bwilk...@harris.com wrote:
Glad to hear you got it working! What is legacy.sql? Did my other steps help?
-Original Message-
From: postgis-users-boun...@lists.osgeo.org
[mailto:postgis-users-boun...@lists.osgeo.org] On Behalf Of James David Smith
On 6 August 2013 23:32, BladeOfLight16 bladeofligh...@gmail.com wrote:
On Tue, Aug 6, 2013 at 12:53 PM, James David Smith
james.david.sm...@gmail.com wrote:
However it says that Topology and Raster support are not present. So I
thought that I could now run the following commands to install
On 8 August 2013 09:43, James David Smith james.david.sm...@gmail.com wrote:
On 6 August 2013 23:32, BladeOfLight16 bladeofligh...@gmail.com wrote:
On Tue, Aug 6, 2013 at 12:53 PM, James David Smith
james.david.sm...@gmail.com wrote:
However it says that Topology and Raster support
On 8 August 2013 16:02, James David Smith james.david.sm...@gmail.com wrote:
On 8 August 2013 15:57, Wilkins, Brian bwilk...@harris.com wrote:
Do you have perl installed? It seems like it is unable to execute the perl
script.
-Original Message-
From: postgis-users-boun
/tmp/dump name.dmp
I always dump the globals just in case...
Brian
-Original Message-
From: postgis-users-boun...@lists.osgeo.org
[mailto:postgis-users-boun...@lists.osgeo.org] On Behalf Of James David Smith
Sent: Thursday, August 08, 2013 12:23 PM
To: PostGIS Users Discussion
On 6 August 2013 10:59, Mike Toews mwto...@gmail.com wrote:
On 6 August 2013 21:50, Nicolas Ribot nicolas.ri...@gmail.com wrote:
Hi,
What is the *first* error message returned by the command:
psql -d james_test -f /usr/pgsql-9.0/share/contrib/postgis-2.0/postgis.sql
Nicolas
A good way to
) server, and if not cleaning geos and
postgis before building
Cheers,
Rémi-C
2013/8/6 Mike Toews mwto...@gmail.com
On 6 August 2013 22:49, James David Smith james.david.sm...@gmail.com
wrote:
Hi Mike,
Thanks for the reply. I thought that I had the latest version of GEOS,
so I just
late, but when I did an upgrade, I had to run my
dump through one of the postgis update scripts in the contrib directory.
Did you do that?
Brian
-Original Message-
From: postgis-users-boun...@lists.osgeo.org [mailto:
postgis-users-boun...@lists.osgeo.org] On Behalf Of James David
Hi there,
I'm trying to make and compile PostGIS 2.0 with PostgreSQL 9.0. My
verrsion of PostgreSQL is:
PostgreSQL 9.0.4 on x86_64-unknown-linux-gnu, compiled by GCC gcc
(GCC) 4.1.2 20080704 (Red Hat 4.1.2-48), 64-bit
A work colleague and I havee been following the steps here:
- and they are neither equal to neigher your
start- nor endpoint I would guess there are some rounding going on
somewhere - that the google api just is not able to distinguish between
points so close together.
Morten
James David Smith skrev:
Hi there everyone,
I've been messing about using the Google
Hi all,
Could someone point me towards some instructions for upgrading my
PostGIS version please? I interact with it using PSQL. My current
versions are below:
PostgreSQL 9.0.4 on x86_64-unknown-linux-gnu, compiled by GCC gcc
(GCC) 4.1.2 20080704 (Red Hat 4.1.2-48), 64-bit
POSTGIS=1.5.5SVN
Hi there,
This isn't so much a question as such, more a request for opinions and
advice. I was wondering whether anyone had any experience with using the
Google API for getting driving directions/routing - but then storing the
results in a PostgreSQL/PostGIS database. I was thinking that my
Haha. Whoops. Yes, here is the link:
http://project-osrm.org/
API details here: https://github.com/DennisOSRM/Project-OSRM/wiki/Server-api
Not quite as many options as the Google Directions API, but still pretty
good.
James
On 16 May 2013 20:39, Brian Wilson br...@wildsong.biz wrote:
I've
Sorry for the dumb suggestions, but have you tried putting '37995'
instead of 37995 ? Also you are absolutely sure that you have columns
called coordinates and date in your points table right? Note that they
might be case sensitive too, so check that.
On 4 April 2013 16:21, Lelo - Luiz Rogério De
Hi,
I'm not sure if this is what you are looking for exactly, but if you do
this in a query in a PostGIS database it might help:
SELECT postgis_full_version()
It will give you something like:
POSTGIS=2.0.1 r9979 GEOS=3.3.5-CAPI-1.7.5 PROJ=Rel. 4.8.0, 6 March
2012* GDAL=GDAL 1.9.1, released
, James David Smith
james.david.sm...@gmail.com wrote:
Dear all,
I've had a quick search online and found a few people who have had
similar questions, but no definite answers. My question is whether
there is a simple way to take an encoded Google Polyline and place it
into a Geometry column
richard.greenw...@gmail.com wrote:
On Fri, Feb 15, 2013 at 6:44 AM, James David Smith
james.david.sm...@gmail.com wrote:
Dear all,
I've had a quick search online and found a few people who have had
similar questions, but no definite answers. My question is whether
there is a simple way
Dear Neville,
I would first start with making a proper 'geometry' column rather than
using your Lat and Long columns. You would do this with code like
this:
SELECT AddGeometryColumn ('table_name','the_geom',27700,'POINT',2);
Notes about this:
'the_geom' is an arbitrary column name. Call it
46 matches
Mail list logo
