[postgis-users] spaces between tiles
Hi guys, I have just run the st_hillshade function. A row of pixels around the resulting raster are missing, causing spaces between tiles. What could be the problem? Regards Joan ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] spaces between tiles
Joan, The ST_HillShade function does not support tiled coverage... Depending on how big is your coverage (how many pixels by how many pixels) you could import it non tiled and then use ST_Tile to tile in the DB. ST_Tile is not part of PostGIS 2.0. You will find it here: http://trac.osgeo.org/postgis/browser/trunk/raster/scripts/plpgsql/st_tile.sql Pierre -Original Message- From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users- boun...@postgis.refractions.net] On Behalf Of Joan Sent: Thursday, May 31, 2012 11:53 AM To: PostGIS Users Discussion Subject: [postgis-users] spaces between tiles Hi guys, I have just run the st_hillshade function. A row of pixels around the resulting raster are missing, causing spaces between tiles. What could be the problem? Regards Joan ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] spaces between tiles
Pierre, It is a huge coverage, I am using the function just for evaluation of postgis raster. So, I can work with the results I have gotten. Thank you. Joan On 31 May 2012 17:57, Pierre Racine pierre.rac...@sbf.ulaval.ca wrote: Joan, The ST_HillShade function does not support tiled coverage... Depending on how big is your coverage (how many pixels by how many pixels) you could import it non tiled and then use ST_Tile to tile in the DB. ST_Tile is not part of PostGIS 2.0. You will find it here: http://trac.osgeo.org/postgis/browser/trunk/raster/scripts/plpgsql/st_tile.sql Pierre -Original Message- From: postgis-users-boun...@postgis.refractions.net [mailto: postgis-users- boun...@postgis.refractions.net] On Behalf Of Joan Sent: Thursday, May 31, 2012 11:53 AM To: PostGIS Users Discussion Subject: [postgis-users] spaces between tiles Hi guys, I have just run the st_hillshade function. A row of pixels around the resulting raster are missing, causing spaces between tiles. What could be the problem? Regards Joan ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] Ubuntu and Postgresql9.1.3-2
Hi Jeff, I removed all the packages you asked me to and then reinstalled the postgis-2.0 from herehttp://trac.osgeo.org/postgis/wiki/UsersWikiPostGIS20Ubuntu1204#a44BuildPostGIS. the reason I started there is because, postgres-9.1 was already present. After re-installing the postgis, I tried using the `psql` command but I am getting the following error, psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket /var/run/postgresql/.s.PGSQL.5432? And when I opened pgadmin3, it said that it could not connect to a server. Server doesn't listen The server doesn't accept connections: the connection library reports could not connect to server: Connection refused Is the server running on host localhost (127.0.0.1) and accepting TCP/IP connections on port 5432? It seems that the geoserver got uninstalled when I executed, apt-get auto remove So now, I re-installed it, I am still not able to use psql or pgadmin3. I also tried restarting the postgres, using service postgres restart and I received the following error, * Error: You must run this program as the cluster owner (postgres) On Wed, May 30, 2012 at 11:32 AM, Jeff Meyer j...@gwhat.org wrote: Hi Smaran - You actually do have geonode installed if you installed opengeo-suite. The link I pointed you to below shows all of the packages installed with opengeo-suite geonode is the second item listed: http://apt.opengeo.org/ubuntu/dists/lucid/main/binary-amd64/Packages Geonode is really the heart of the entire opengeo suite. Here's what I did: ** removed the opengeo repository link in /etc/apt/sources.list then sudo apt-get remove opengeo-suite sudo apt-get remove postgresql-8.4 sudo apt-get remove opengeo-postgis Then, I went in and reinstalled postgis 2.0 using the instructions on the wiki (the instructions you used before). Then, I installed the alpha version of Geonode, using the link provided below. (http://geonode.org/) Hack away at that a little bit I bet you can get going again. Good luck! Jeff -- *From:* Smaran Harihar smaran.hari...@gmail.com *To:* Jeff Meyer j...@gwhat.org *Sent:* Wednesday, May 30, 2012 9:47 AM *Subject:* Re: [postgis-users] Ubuntu and Postgresql9.1.3-2 Hi Jeff, Hi Smaran - Can you double-check your version of gdal? What happens when you type: # gdal-config ? gdal version - 1.9.0 At present I am not using Geonode. Also you were right I think opengeo has overwritten my postgis. Here is the output. dpkg -s postgis Package: postgis Status: install ok installed Priority: optional Section: misc Installed-Size: 2092 Maintainer: Debian GIS Project pkg-grass-de...@lists.alioth.debian.org Architecture: amd64 Version: 1.5.4-1+opengeo Depends: libatk1.0-0 (= 1.29.3), libc6 (= 2.4), libcairo2 (= 1.2.4), libfontconfig1 (= 2.8.0), libfreetype6 (= 2.2.1), libglib2.0-0 (= 2.16.0), libgtk2.0-0 (= 2.8.0), libpango1.0-0 (= 1.14.0), libpq5 (= 8.4~0cvs20090328) Suggests: postgresql-8.4-postgis Description: geographic objects support for PostgreSQL -- common files PostGIS adds support for geographic objects to the PostgreSQL object-relational database. In effect, PostGIS spatially enables the PostgreSQL server, allowing it to be used as a backend spatial database for geographic information systems (GIS), much like ESRI's SDE or Oracle's Spatial extension. PostGIS follows the OpenGIS Simple Features Specification for SQL. . This package contains the PostGIS userland binaries, common files and documentation. Homepage: http://postgis.refractions.net/ So what should i do now? Thanks Regards, Smaran Harihar On Wed, May 30, 2012 at 8:30 AM, Jeff Meyer j...@gwhat.org wrote: Hi Smaran - Can you double-check your version of gdal? What happens when you type: # gdal-config ? Keep in mind, the latest version of PostGIS wants you to be using GDAL 1.9. Also, on the Geonode web page, it says that past versions of Geonode - that is, the one that comes with opengeo suite - is not compatible with Ubuntu 12.04. See: http://geonode.org/ GeoNode 1.2 will be the first release compatible with Ubuntu 11.10 and 12.04 (while maintaining compatibility with Ubuntu releases after 10.04). Please note that this alpha in particular has only been tested in 12.04, we appreciate your feedback in identifying potential issues in other distributions. Issue reports may be filed on the GeoNode Github projecthttp://github.com/geonode/geonodeor reported on the GeoNode users forum https://groups.google.com/forum/#%21forum/geonode-users. Also - double-check which version of postgis is running - opengeo-suite may have overwritten PostGIS 2.0... it did for me. : ) jeffme@jeffme-vbox:~$ dpkg -s postgis Package: postgis Status: install ok installed Priority: optional Section: misc Installed-Size: 2092 Maintainer: Debian GIS Project
[postgis-users] Can't figure out query to find lat/lon (numeric types) in time zone (geometry type). New to GIS.
I have the following table for time zone data: CREATE TABLE tz_world ( gid serial NOT NULL, tzid character varying(30), the_geom geometry, CONSTRAINT tz_world_pkey PRIMARY KEY (gid ), CONSTRAINT enforce_dims_the_geom CHECK (st_ndims(the_geom) = 2), CONSTRAINT enforce_geotype_the_geom CHECK (geometrytype(the_geom) = 'MULTIPOLYGON'::text OR the_geom IS NULL), CONSTRAINT enforce_srid_the_geom CHECK (st_srid(the_geom) = (-1)) ) and a location table: CREATE TABLE locations ( id bigserial NOT NULL, latitude numeric, longitude numeric, ) Given a location id, I want to know what time zone it's in. I'm brand new to GIS and have not been able to figure out this query. I have PostgreSQL 9.1 and PostGIS 1.5.3 installed and set up, and the timezone data imported using the shape file import wizard. Can someone please give me an example of how to query lat/lon in the_geom? Thanks! Scott ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] Can't figure out query to find lat/lon (numeric types) in time zone (geometry type). New to GIS.
select tz.tzid from tz_world tz, locations locs where st_contains(tz.the_geom, st_makepoint(locs.longitude, locs.latitude)) and loc.id = ?; On Thu, May 31, 2012 at 12:57 PM, Scott Chapman sc...@mischko.com wrote: I have the following table for time zone data: CREATE TABLE tz_world ( gid serial NOT NULL, tzid character varying(30), the_geom geometry, CONSTRAINT tz_world_pkey PRIMARY KEY (gid ), CONSTRAINT enforce_dims_the_geom CHECK (st_ndims(the_geom) = 2), CONSTRAINT enforce_geotype_the_geom CHECK (geometrytype(the_geom) = 'MULTIPOLYGON'::text OR the_geom IS NULL), CONSTRAINT enforce_srid_the_geom CHECK (st_srid(the_geom) = (-1)) ) and a location table: CREATE TABLE locations ( id bigserial NOT NULL, latitude numeric, longitude numeric, ) Given a location id, I want to know what time zone it's in. I'm brand new to GIS and have not been able to figure out this query. I have PostgreSQL 9.1 and PostGIS 1.5.3 installed and set up, and the timezone data imported using the shape file import wizard. Can someone please give me an example of how to query lat/lon in the_geom? Thanks! Scott ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] Can't figure out query to find lat/lon (numeric types) in time zone (geometry type). New to GIS.
Thanks Paul! On Thu, May 31, 2012 at 1:12 PM, Paul Ramsey pram...@opengeo.org wrote: select tz.tzid from tz_world tz, locations locs where st_contains(tz.the_geom, st_makepoint(locs.longitude, locs.latitude)) and loc.id = ?; On Thu, May 31, 2012 at 12:57 PM, Scott Chapman sc...@mischko.com wrote: I have the following table for time zone data: CREATE TABLE tz_world ( gid serial NOT NULL, tzid character varying(30), the_geom geometry, CONSTRAINT tz_world_pkey PRIMARY KEY (gid ), CONSTRAINT enforce_dims_the_geom CHECK (st_ndims(the_geom) = 2), CONSTRAINT enforce_geotype_the_geom CHECK (geometrytype(the_geom) = 'MULTIPOLYGON'::text OR the_geom IS NULL), CONSTRAINT enforce_srid_the_geom CHECK (st_srid(the_geom) = (-1)) ) and a location table: CREATE TABLE locations ( id bigserial NOT NULL, latitude numeric, longitude numeric, ) Given a location id, I want to know what time zone it's in. I'm brand new to GIS and have not been able to figure out this query. I have PostgreSQL 9.1 and PostGIS 1.5.3 installed and set up, and the timezone data imported using the shape file import wizard. Can someone please give me an example of how to query lat/lon in the_geom? Thanks! Scott ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
[postgis-users] Proposal for a new function ST_GeogFromLatLon
Hi all, We are having lot of new web developers coming to use PostGIS and thats great! One of the first barries I know some people have is how complicate is to create a point on PostGIS. Basically you need to know: 1) In PostGIS first comes Longitude, then Latitude 2) You have to specify an srid, which most people havent heard of So what I would consider a trivial query looks like this: SELECT * FROM mytable WHERE the_geom ST_SetSRID(ST_MakePoint(-123.0,34),4326) I propose to have a wrapper function called ST_GeogFromLatLon or something similar so that we can do: SELECT * FROM mytable WHERE the_geom ST_GeogFromLatLon(34,-123.0) The ST_GeogFromLatLon will imply 4326 SRID. And the return could be geography, as it cast well to geometry, so it will work in most cases. I know is not such a big difference, but I think it will help a lot new people and will also make our queries look much better in some scenarios. In my experiences when teaching postgis this is kind of annoying having to go through it. Does this break the entire GIS world? :D Just kidding. Javier de la Torre @jatorre Vizzuality 148 Lafayette St. PH, New York, 10013,USA +1 347 320 7715 www.vizzuality.com ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] PostGis Raster and GDAL 1.9
Hi Jorge, Did you receive my email with the files requested? I used an other adresse to send you the files. David From: jorgearev...@libregis.org Date: Mon, 28 May 2012 10:07:09 +0200 To: postgis-users@postgis.refractions.net Subject: Re: [postgis-users] PostGis Raster and GDAL 1.9 Hi, David, could you please attach the original files? Seems to be a problem with the way the driver gets the origin of the raster coverage, yes. The code in GDAL trunk is under development. Slowness problem is one of the reasons. Best regards, Jorge On Tue, May 22, 2012 at 7:01 PM, David B�langer belanger_da...@live.ca wrote: Hi, I did tests and all gave the result expected. It seem to be a problem with the origin of the result file (see attached file). The application has taken the origin of the file 056n05_0100_deme.tif instead of the origin of the file 056n05_0100_demw.tif. What do you think ? For your information the files are in geographic coordinate system. David From: pierre.rac...@sbf.ulaval.ca To: postgis-users@postgis.refractions.net Date: Tue, 22 May 2012 11:37:03 -0400 Subject: Re: [postgis-users] PostGis Raster and GDAL 1.9 I would maybe do some tests: 1) Remove the -a_nodata -32767 parameter. Why did you have to set it? Is the nodata set properly in PostGIS for all rows? 2) Extract one file at a time with mode=2 and then with mode=1 Pierre -Original Message- From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users- boun...@postgis.refractions.net] On Behalf Of David B?langer Sent: Tuesday, May 22, 2012 10:25 AM To: postgis-users@postgis.refractions.net Subject: Re: [postgis-users] PostGis Raster and GDAL 1.9 Hi Pierre, Yes I have a unique rid (Integer) with sequential number. I used the tool raster2pgsql.exe to upload the data in the database. I uploaded 2 files 056n05_0100_deme.tif 056n05_0100_demw.tif C:\Program Files\PostgreSQL\9.1\bin\raster2pgsql.exe -I -e -Y -F -s 4269 e:\dir\*.tif dbelange.elevationTest | psql.exe -U myuser -d myDB -h myhost -p 14070 I used this command to extract data: C:\Program Files\GDAL\gdal_translate -a_nodata -32767 -of GTIFF PG:host=myhost port=14070 dbname='myDB' user='myuser' password='mypassword' schema='dbelange' table='elevationTest' mode=2 where=\filename LIKE \'%056n05%\'\ 056N05_testGDAL1.9.tif Like I said it’s working very well with gdal 1.8 I can send you the 2 files If you want to try on your side. Do you have another idea? David From: pierre.rac...@sbf.ulaval.ca To: postgis-users@postgis.refractions.net Date: Sat, 19 May 2012 13:55:47 -0400 Subject: Re: [postgis-users] PostGis Raster and GDAL 1.9 Hi David, Do you have a rid column in your table with unique values? Pierre -Original Message- From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users- boun...@postgis.refractions.net] On Behalf Of David B?langer Sent: Thursday, May 17, 2012 8:13 PM To: postgis-users@postgis.refractions.net Subject: [postgis-users] PostGis Raster and GDAL 1.9 Hi, I stored DEM raster data in PostGIS 2.0 and I used gdal_translate (with mode=2) to extract a mosaic of tiles. When I’m using GDAL 1.8 is working but when I’m using GDAL 1.9 I can see the values of pixel for just one tile. For example I uploaded in the database a tile with an attribute filename=056n05_w and an other tile with an filename=056n05_e and I executed the command with GDAL 1.8 and GDAL 1.9: gdal_translate -a_nodata -32767 -of GTIFF PG:host=myhost port=14070 dbname='mybd' user='myuser' password='mypassword' schema='myschema'table='Elevation' mode=2 where=\filename LIKE \'%056n05%\'\ 056N05.tif With GDAL 1.8 I obtained a mosaic of 2 tiles (the result expected) but with GDAL 1.9, I obtained a raster with the same extent but only the values of the tile 056n05_w are present. The pixels of the tile 056n05_w have a value 0. I tried the stable version 1.9 MSVC2008 (Win32) and development version available today at http://www.gisinternals.com/sdk/ https://email.nrcan.gc.ca/owa/redir.aspx?C=OzXx4wlk90m3TV7W8fzG7_FxObj PB88I1bAwXOtZColSmDyhIvj_1yhbCVJUJ0vrnCWWTuivB9Y.URL=http://www.g isinternals.com/sdk/ and I have still the same problem. For your information, I'm running GDAL on windows7 and PostGIS 2.0 is installed on a Linux server. I tried many version of GDAL 1.9 and I always have the same problem. The version 1.8 is working very well but I would like to take advantage of the improvements in the last version because I'm working on a project where processing time is very important.
