Comments for Northwest Spatial Solutions

Comment on Ubuntu GIS from Scratch: Step Six – QGIS by jarda

jarda — Tue, 25 Dec 2012 01:31:58 +0000

fantastic job, possibly the best gis guide online. I cannot wait for the 7th lesson!

Comment on Ubuntu GIS from Scratch: Step 3 – PostGIS by leigh

leigh — Thu, 15 Nov 2012 21:26:16 +0000

Thomas,
All apologies, there is a typo in that command. All SQL commands, including those passed via psql using the -c flag, need to be terminated with a semicolon.

psql template_postgis -c “create extension postgis;”
psql template_postgis -c “create extension postgis_topology;”

The instructions have been modified to correct this error. Thanks for pointing it out!

Comment on Ubuntu GIS from Scratch: Step 3 – PostGIS by Thomas

Thomas — Thu, 15 Nov 2012 20:20:35 +0000

Hallo,

it is the first tutorial for installing postgis. Thank you. But i run into a problem. I installed postgis, no problem. But i’m not able to enable the extension postgis.

here is the output of the terminal:

thomas@thomas-thinkpad-t530:~/Downloads/postgis-2.0.1$ psql template_postgis -c “create extension postgis”
psql: warning: extra command-line argument “postgis”” ignored
psql: FATAL: Peer authentication failed for user “extension”

what is the problem?

Thank you in advance for your help

Thomas

Comment on Ubuntu GIS from Scratch: Step 2 – GEOS and GDAL by Lars Nilsson

Lars Nilsson — Fri, 26 Oct 2012 08:45:22 +0000

No, I cant find ruby.h anywhere, but ruby is installed.

I would like to see a guide that uses the repositories, stable or unstable, to setup a server.
It would be easier to install and maintain for people like me.

Comment on Ubuntu GIS from Scratch: Step 2 – GEOS and GDAL by leigh

leigh — Thu, 25 Oct 2012 20:50:47 +0000

Does the file:
/usr/lib/ruby/1.8/i686-linux/ruby.h
actually exist on your system? If not, you’ll need to install Ruby. Then run make clean before trying to run make again.

Alternatively, you can configure your GEOS installation to run without Ruby. It’s nice to have, but it’s not essential.
./configure –enable-python –enable-php

Comment on Ubuntu GIS from Scratch: Step 2 – GEOS and GDAL by Lars Nilsson

Lars Nilsson — Thu, 25 Oct 2012 11:30:50 +0000

When running ‘make’ I run into problems and the installation halts.

/bin/bash ../../libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -I. -I../../include -I../../include/geos -I/usr/lib/ruby/1.8/i686-linux -I../../capi -DGEOS_INLINE -pedantic -Wall -ansi -Wno-long-long -ffloat-store -g -O2 -MT geos_la-geos_wrap.lo -MD -MP -MF .deps/geos_la-geos_wrap.Tpo -c -o geos_la-geos_wrap.lo `test -f 'geos_wrap.cxx' || echo './'`geos_wrap.cxx libtool: compile: g++ -DHAVE_CONFIG_H -I. -I../../include -I../../include/geos -I/usr/lib/ruby/1.8/i686-linux -I../../capi -DGEOS_INLINE -pedantic -Wall -ansi -Wno-long-long -ffloat-store -g -O2 -MT geos_la-geos_wrap.lo -MD -MP -MF .deps/geos_la-geos_wrap.Tpo -c geos_wrap.cxx -fPIC -DPIC -o .libs/geos_la-geos_wrap.o geos_wrap.cxx:856:18: fatal error: ruby.h: No such file or directory compilation terminated.

There seems to be others that have encounterd something similar:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=676094

But I dont know how to apply it.

I am running ubuntu server 12.04.1 LTS

Thanks

Comment on Getting to Know QGIS by Gary Sherman

Gary Sherman — Thu, 15 Dec 2011 18:40:57 +0000

Installing on Mac only requires a couple of framework installs prior to the QGIS install. In my experience it only takes a few minutes to get a working installation…

Comment on Cartography for the Web by Ailen Buckley

Ailen Buckley — Thu, 25 Aug 2011 16:44:08 +0000

You make a good point about 17 inch monitors and “millions” of colors. When designing a map, it helps to set a the minimum expectations for the output. These are the specs we use, but they would be different if we were designing for another audience, say, for example, users in developing countries (smaller or lower res monitors) or users who would be expected to use smaller format displays (iPads, iPhones, etc…) One map design will rarely work for all of these output displays, though these would all be “Web” maps. It helps at the outset to know what your output goals are and strive to achieve those rather than all expectations (though that would be the ideal solution and we do continuously hope to achieve that! )

Comment on Happy GIS Day! by leigh

leigh — Fri, 19 Nov 2010 02:06:28 +0000

Political GIS data (districts, precincts, etc) can be downloaded from the King County GIS data portal:
http://www5.kingcounty.gov/gisdataportal/

King County also maintains a set of pre-built election reference maps which can be downloaded as PDFs:
http://www.kingcounty.gov/elections/referenceresources/electionmaps/legislativedistricts.aspx

Hope that helps!

Comment on Happy GIS Day! by Norsky

Norsky — Thu, 18 Nov 2010 00:03:11 +0000

Do you have any good links to politically-oriented maps or data, specifically within King County, WA?