[postgis-users] How to remotely edit a postgis db?

2011-01-25 Thread Robert Buckley
Hi,

with Quantum GIS v1.6.0 I just managed to connect and edit!!!
I don´t believe i because I was trying all last night and it wasn´t working?
ok...so it works! great!

As a newbie then, I have a questions?

How do I define different users to different tables in a database?...I was 
thinking of creating various databases for different users. Could I then define 
different user accounts/roles to the databases to ensure that only correct 
person is able to edit his/her database?...for example I have a region with 10 
counties. If I create 10 databases for each county, I could then assign 10 
users 
(county_1, county_2 ...county_10) to database_1, Database_2...Database_10 etc 
so 
that the user "County_2" can only edit the database "County_2".

does that make sense? Is it feasable/doable?

yours,

Robert

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Re: [postgis-users] How to remotely edit a postgis db?

2011-01-25 Thread Maria Arias de Reyna
El Wednesday 26 January 2011, Robert Buckley escribió:
> Hi,
> 
> i have installed postgis on postgresql and everything seems to working
> fine. At the moment I uploading tables through shp2psql and this is
> working too.
> 
> I would now like to edit the data from remote pcs. I have experience using
> various open source gis software e.g Jump, QGIS, svSIG, Udig etc but I
> cannot edit and commit changed through these gis systems.
> 
> My system is Ubuntu 8.04.
> postgresql is version 8.3 / postgresql-8.3-postgis
> 
> I installed postgis as sudo...therefore the installation folder is owned by
> root
> 
> cd .. /usr/share/postgresql
> drwxr-xr-x  6 root root 4096 2011-01-25 15:22 8.3
> 
> I have created a user called geoserver for gis work
> 
> sudo -u postgres -i
> createuser geoserver
> createdb -E UTF8 -O geoserver gis
> 
> 
> and then created the language...
> 
> createlang plpgsql gis
> 
> 
> I was following these instructions by the way.
> http://weait.com/content/build-your-own-openstreetmap-server-v1
> 
> 
> So...as far as I can see, I have a working installation of postgresql with
> postgis isntalled. I can log in to postgresql with pgadmin3 and see my gis
> db which is spatially enabled with the postgis functions. Fantastic!
> 
> I uploaded a shp and even loaded it into geoserver which displayed it
> perfectly.
> 
> so...Now I want to edit the data...

It is probably a problem of postgreSQL configuration, not PostGIS. Check which 
users (postgreSQL users) have rights to select, update and delete the tables 
you are trying to use.

> 
> Question:
> 1. does user geoserver have editing permission? How can I find out?

Try to connect to the database with the same user and password geoserver is 
using from the IP in which geoserver is installed. If you can, geoserver can.

> 2. is postgres a user account on ubuntu or just the login name for the
> db?...When I look in my /home folder on ubuntu there is no folder there
> called postgres so I guess no!?!?

postgres is a user account on your OS, but is also a user account for 
postgreSQL, which is a completely different thing.

> 3. Why can´t I just log in through any of the software mentioned above and
> edit?

Have you checked that the /etc/postgresql/*/main/pg_hba.conf file is 
configured for the username, password and IP you are trying to use?

Have you checked that the /etc/postgresql/*/main/postgresql.conf file is 
configured for the IP you are trying to use? The "#listen_addresses = 
'localhost'" line.

> 
> 
> 
> I would be grateful for any pointers...
> 
> thanks,
> 
> Robert Buckley

-- 
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[postgis-users] How to remotely edit a postgis db?

2011-01-25 Thread Robert Buckley
Hi,

i have installed postgis on postgresql and everything seems to working fine.
At the moment I uploading tables through shp2psql and this is working too.

I would now like to edit the data from remote pcs. I have experience using 
various open source gis software e.g Jump, QGIS, svSIG, Udig etc but I cannot 
edit and commit changed through these gis systems.

My system is Ubuntu 8.04.
postgresql is version 8.3 / postgresql-8.3-postgis

I installed postgis as sudo...therefore the installation folder is owned by root

cd .. /usr/share/postgresql
drwxr-xr-x  6 root root 4096 2011-01-25 15:22 8.3

I have created a user called geoserver for gis work

sudo -u postgres -i
createuser geoserver
createdb -E UTF8 -O geoserver gis


and then created the language...

createlang plpgsql gis


I was following these instructions by the way. 
http://weait.com/content/build-your-own-openstreetmap-server-v1


So...as far as I can see, I have a working installation of postgresql with 
postgis isntalled. I can log in to postgresql with pgadmin3 and see my gis db 
which is spatially enabled with the postgis functions. Fantastic!

I uploaded a shp and even loaded it into geoserver which displayed it perfectly.

so...Now I want to edit the data...

Question:
1. does user geoserver have editing permission? How can I find out?
2. is postgres a user account on ubuntu or just the login name for the 
db?...When I look in my /home folder on ubuntu there is no folder there called 
postgres so I guess no!?!?
3. Why can´t I just log in through any of the software mentioned above and 
edit? 



I would be grateful for any pointers...

thanks,

Robert Buckley

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Re: [postgis-users] Strange behavior with a polygon and line that claim to intersect ....

2011-01-25 Thread Nicklas Avén
Well, I looked at it in QGIS and the line seems to cross the border of
the polygon. I have attached the part of the polygon where it crosses,
with the line in violet and the intersecting part in green.

/Nicklas

On Tue, 2011-01-25 at 15:00 -0500, Bryan Montgomery wrote:
> Hello,
> Is there a way to debug a problem I have with a polygon and line? I
> was running a query that used st_intersects and st_intersection to get
> the length of lines that are within the polygon. I was spot checking
> some of the data and came up with a particularly strange example.
> 
> Visually, the polygon looks as it should, the line clearly appears to
> be completely contained within the polygon however st_crosses returns
> true and intersection returns a subset of the line. I've tried this on
> postgis version 1.3 and 1.4 and both behave the same. I'm inclined to
> believe there is a stray point but given the polygon 2,700+ points I'm
> not sure how I find it! I suppose it's possible that there is a bug -
> or maybe I'm just completely missing something.
> 
> I tried finding the closest point on the polygon to the line - but
> when I tried to find a way to do this it seemed that the suggestions
> were for finding the closest point when the other point was outside
> the polygon?
> 
> Appreciate any help,
> 
> Thanks - Bryan.
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Re: [postgis-users] WKTRaster problems on Mac

2011-01-25 Thread Paragon Corporation
Ken,

If it helps -- here is a quick tutorial we wrote a while ago that shows how
to use the theming feature.  It's a bit dated, but I think still relevant.

http://www.postgresonline.com/journal/archives/72-OpenJump-for-PostGIS-Spati
al-Ad-Hoc-Queries.html

Hope that helps,
Leo and Regina
http://www.postgis.us
 

-Original Message-
From: postgis-users-boun...@postgis.refractions.net
[mailto:postgis-users-boun...@postgis.refractions.net] On Behalf Of knussear
Sent: Tuesday, January 25, 2011 2:19 PM
To: postgis-users@postgis.refractions.net
Subject: Re: [postgis-users] WKTRaster problems on Mac


I'm not an open Jump user, so I haven't explored any of these options


Paragon Corporation-2 wrote:
> 
> Ken,
> 
> Did you use the theming features of OpenJump.  That is what we usually 
> use to see the output.
> 
> Here is a snapshot from the latest revision of our raster chapter of 
> our upcoming book (due out hopefully in Mid-late February in print).
> Which is the output of this query (a raster intersected with a 100 
> meter radius buffer)  after we apply a gradient theme.
> 
> SELECT CAST((gval).val As integer) AS val, 
>  ST_AsBinary((gval).geom) As geom  
> FROM (
> SELECT ST_Intersection(rast,1,buf.geom) As gval 
> FROM ch13.kauai
>  INNER JOIN (   
>  SELECT ST_Buffer(  
>   ST_GeomFromText('POINT(444205 2438785)',26904),100)   
>  As geom) As buf ON 
> ST_Intersects(rast,buf.geom))  As foo
> 
> Also BTW:  Didn't see an image attached to your email.
> 
> Also I recall OJ has some issues with double precision and long int 
> which is why we cast it to an integer
> 
> Hope that helps,
> Regina and Leo
> http://www.postgis.us  
> 
> 
> 
> 
> 
>  
> 
> -Original Message-
> From: postgis-users-boun...@postgis.refractions.net
> [mailto:postgis-users-boun...@postgis.refractions.net] On Behalf Of 
> knussear
> Sent: Tuesday, January 25, 2011 7:58 AM
> To: postgis-users@postgis.refractions.net
> Subject: Re: [postgis-users] WKTRaster problems on Mac
> 
> 
>  I did finally get the Open Jump call to work, and can see the polygon 
> output. However its not entirely useful as I intend to use map algebra 
> etc on the raster..
> 
> The attachment from qgis shows the original  input raster on top of 
> what qgis shows for the raster. The qgis image of the postgis raster 
> alone is just all green (gray etc).
> 
> Ken
> 
> 
> Pierre Racine-2 wrote:
>> 
>> Actually the image in the previous post is the original. Attached is 
>> what he sees when viewing the image in QGIS after it was imported in 
>> PostGIS raster...
>> 
>>>-Original Message-
>>>From: postgis-users-boun...@postgis.refractions.net
>>>[mailto:postgis-users- boun...@postgis.refractions.net] On Behalf Of 
>>>Pierre Racine
>>>Sent: 24 janvier 2011 16:45
>>>To: PostGIS Users Discussion
>>>Subject: Re: [postgis-users] WKTRaster problems on Mac
>>>
>>>No but his first attempt was to open the image in QGIS. See the first
> mail. I attach the image he sent
>>>me as it was not attached in the first mail sent to users-postgis.
>>>
>>>I think this is typical of the first problem you met with the driver.
>>>
>>>Pierre
>>>
The GDAL driver is not being used in the commands I've seen. Did you 
execute the query Pierre suggested?

SELECT ST_AsBinary((gv).geom), (gv).val FROM (SELECT
ST_DumpAsPolygons(rast) gv FROM x01) foo

Replacing "x01" by your table's name.

--
Jorge Arévalo
Internet & Mobilty Division, DEIMOS
jorge.arev...@deimos-space.com
http://mobility.grupodeimos.com/
http://gis4free.wordpress.com
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>> 
>>  
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>> 
>> 
> 
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> http://old.nabble.com/WKTRaster-problems-on-Mac-tp30721572p30755095.ht
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> 
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Re: [postgis-users] WKTRaster problems on Mac

2011-01-25 Thread knussear

I'm not an open Jump user, so I haven't explored any of these options


Paragon Corporation-2 wrote:
> 
> Ken,
> 
> Did you use the theming features of OpenJump.  That is what we usually use
> to see the output.
> 
> Here is a snapshot from the latest revision of our raster chapter of our
> upcoming book (due out hopefully in Mid-late February in print).  
> Which is the output of this query (a raster intersected with a 100 meter
> radius buffer)  after we apply a gradient theme.
> 
> SELECT CAST((gval).val As integer) AS val, 
>  ST_AsBinary((gval).geom) As geom  
> FROM (
> SELECT ST_Intersection(rast,1,buf.geom) As gval 
> FROM ch13.kauai
>  INNER JOIN (   
>  SELECT ST_Buffer(  
>   ST_GeomFromText('POINT(444205 2438785)',26904),100)   
>  As geom) As buf ON 
> ST_Intersects(rast,buf.geom))  As foo
> 
> Also BTW:  Didn't see an image attached to your email.
> 
> Also I recall OJ has some issues with double precision and long int which
> is
> why we cast it to an integer
> 
> Hope that helps,
> Regina and Leo
> http://www.postgis.us  
> 
> 
> 
> 
> 
>  
> 
> -Original Message-
> From: postgis-users-boun...@postgis.refractions.net
> [mailto:postgis-users-boun...@postgis.refractions.net] On Behalf Of
> knussear
> Sent: Tuesday, January 25, 2011 7:58 AM
> To: postgis-users@postgis.refractions.net
> Subject: Re: [postgis-users] WKTRaster problems on Mac
> 
> 
>  I did finally get the Open Jump call to work, and can see the polygon
> output. However its not entirely useful as I intend to use map algebra etc
> on the raster..
> 
> The attachment from qgis shows the original  input raster on top of what
> qgis shows for the raster. The qgis image of the postgis raster alone is
> just all green (gray etc).
> 
> Ken
> 
> 
> Pierre Racine-2 wrote:
>> 
>> Actually the image in the previous post is the original. Attached is 
>> what he sees when viewing the image in QGIS after it was imported in 
>> PostGIS raster...
>> 
>>>-Original Message-
>>>From: postgis-users-boun...@postgis.refractions.net 
>>>[mailto:postgis-users- boun...@postgis.refractions.net] On Behalf Of 
>>>Pierre Racine
>>>Sent: 24 janvier 2011 16:45
>>>To: PostGIS Users Discussion
>>>Subject: Re: [postgis-users] WKTRaster problems on Mac
>>>
>>>No but his first attempt was to open the image in QGIS. See the first
> mail. I attach the image he sent
>>>me as it was not attached in the first mail sent to users-postgis.
>>>
>>>I think this is typical of the first problem you met with the driver.
>>>
>>>Pierre
>>>
The GDAL driver is not being used in the commands I've seen. Did you 
execute the query Pierre suggested?

SELECT ST_AsBinary((gv).geom), (gv).val FROM (SELECT 
ST_DumpAsPolygons(rast) gv FROM x01) foo

Replacing "x01" by your table's name.

--
Jorge Arévalo
Internet & Mobilty Division, DEIMOS
jorge.arev...@deimos-space.com
http://mobility.grupodeimos.com/
http://gis4free.wordpress.com
http://geohash.org/ezjqgrgzz0g
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>> 
>>  
>> ___
>> postgis-users mailing list
>> postgis-users@postgis.refractions.net
>> http://postgis.refractions.net/mailman/listinfo/postgis-users
>> 
>> 
> 
> --
> View this message in context:
> http://old.nabble.com/WKTRaster-problems-on-Mac-tp30721572p30755095.html
> Sent from the PostGIS - User mailing list archive at Nabble.com.
> 
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>  
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Re: [postgis-users] WKTRaster problems on Mac

2011-01-25 Thread Jorge Arévalo
On Tue, Jan 25, 2011 at 1:58 PM, knussear  wrote:
>
>  I did finally get the Open Jump call to work, and can see the polygon
> output. However its not entirely useful as I intend to use map algebra etc
> on the raster..
>
> The attachment from qgis shows the original  input raster on top of what
> qgis shows for the raster. The qgis image of the postgis raster alone is
> just all green (gray etc).
>
> Ken
>

Hi,

About MapAlgebra, we're working on it. About the plugin, I need to
check the version of the plugin and the version of the GDAL driver. I
think the last version of the plugin only works with the last version
of GDAL Driver (GDAL 1.8)

Best regards,

-- 
Jorge Arévalo
Internet & Mobilty Division, DEIMOS
jorge.arev...@deimos-space.com
http://mobility.grupodeimos.com/
http://gis4free.wordpress.com
http://geohash.org/ezjqgrgzz0g


>
> Pierre Racine-2 wrote:
>>
>> Actually the image in the previous post is the original. Attached is what
>> he sees when viewing the image in QGIS after it was imported in PostGIS
>> raster...
>>
>>>-Original Message-
>>>From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users-
>>>boun...@postgis.refractions.net] On Behalf Of Pierre Racine
>>>Sent: 24 janvier 2011 16:45
>>>To: PostGIS Users Discussion
>>>Subject: Re: [postgis-users] WKTRaster problems on Mac
>>>
>>>No but his first attempt was to open the image in QGIS. See the first
> mail. I attach the image he sent
>>>me as it was not attached in the first mail sent to users-postgis.
>>>
>>>I think this is typical of the first problem you met with the driver.
>>>
>>>Pierre
>>>
The GDAL driver is not being used in the commands I've seen. Did you
execute the query Pierre suggested?

SELECT ST_AsBinary((gv).geom), (gv).val
FROM (SELECT ST_DumpAsPolygons(rast) gv FROM x01) foo

Replacing "x01" by your table's name.

--
Jorge Arévalo
Internet & Mobilty Division, DEIMOS
jorge.arev...@deimos-space.com
http://mobility.grupodeimos.com/
http://gis4free.wordpress.com
http://geohash.org/ezjqgrgzz0g
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>>
>>
>> ___
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>>
>>
>
> --
> View this message in context: 
> http://old.nabble.com/WKTRaster-problems-on-Mac-tp30721572p30755095.html
> Sent from the PostGIS - User mailing list archive at Nabble.com.
>
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Re: [postgis-users] WKTRaster problems on Mac

2011-01-25 Thread knussear

 I did finally get the Open Jump call to work, and can see the polygon
output. However its not entirely useful as I intend to use map algebra etc
on the raster..

The attachment from qgis shows the original  input raster on top of what
qgis shows for the raster. The qgis image of the postgis raster alone is
just all green (gray etc).

Ken


Pierre Racine-2 wrote:
> 
> Actually the image in the previous post is the original. Attached is what
> he sees when viewing the image in QGIS after it was imported in PostGIS
> raster...
> 
>>-Original Message-
>>From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users-
>>boun...@postgis.refractions.net] On Behalf Of Pierre Racine
>>Sent: 24 janvier 2011 16:45
>>To: PostGIS Users Discussion
>>Subject: Re: [postgis-users] WKTRaster problems on Mac
>>
>>No but his first attempt was to open the image in QGIS. See the first
mail. I attach the image he sent
>>me as it was not attached in the first mail sent to users-postgis.
>>
>>I think this is typical of the first problem you met with the driver.
>>
>>Pierre
>>
>>>The GDAL driver is not being used in the commands I've seen. Did you
>>>execute the query Pierre suggested?
>>>
>>>SELECT ST_AsBinary((gv).geom), (gv).val
>>>FROM (SELECT ST_DumpAsPolygons(rast) gv FROM x01) foo
>>>
>>>Replacing "x01" by your table's name.
>>>
>>>--
>>>Jorge Arévalo
>>>Internet & Mobilty Division, DEIMOS
>>>jorge.arev...@deimos-space.com
>>>http://mobility.grupodeimos.com/
>>>http://gis4free.wordpress.com
>>>http://geohash.org/ezjqgrgzz0g
>>>___
>>>postgis-users mailing list
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>>>http://postgis.refractions.net/mailman/listinfo/postgis-users
> 
>  
> ___
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> 

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[postgis-users] John Zhang wants to stay in touch on LinkedIn

2011-01-25 Thread John Zhang
LinkedIn


   
I'd like to add you to my professional network on LinkedIn.

- John Zhang

John Zhang
GIS Analyst/Developer/Technologist
Vancouver, Canada Area

Confirm that you know John Zhang
https://www.linkedin.com/e/k871to-gjckrwkr-3d/isd/2205644117/kaTTV2dM/


 
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[postgis-users] John Zhang wants to stay in touch on LinkedIn

2011-01-25 Thread John Zhang
LinkedIn


   
I'd like to add you to my professional network on LinkedIn.

- John Zhang

John Zhang
GIS Analyst/Developer/Technologist
Vancouver, Canada Area

Confirm that you know John Zhang
https://www.linkedin.com/e/k871to-gjckr6vq-12/isd/2205644117/kaTTV2dM/


 
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Re: [postgis-users] Using cleangeometry() on only the Multipolygons in a field of type geometry

2011-01-25 Thread strk
On Mon, Jan 24, 2011 at 09:35:52PM -0500, Pete Yunker wrote:
> We have a field of type geometry containing both Multipolygon and Point 
> entities.  How can cleangeometry be used on only the Multipolygons, since 
> cleangeometry cannot be used on a field of type geometry?
> 
> The following query fails with "ERROR:  function cleangeometry(geometry) does 
> not exist"
..
> 1.3.6 PostGIS
> 3.1.0 GEOS

cleangeometry is a contributed procedure.

PostGIS itself has an ST_MakeValid, which does a similar thing, but
only starting with version 2.0.0 (available trough the source
repository, but not released yet).

You might have missed to install the contributed procedure, which I guess
you found on the PostGIS wiki.

--strk; 

  ()   Free GIS & Flash consultant/developer
  /\   http://strk.keybit.net/services.html
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