Country Data Processing - Revision history

Neteler: Reverted edits by JohnCox (talk) to last revision by MilenaN

2013-02-01T19:14:16Z

Reverted edits by JohnCox (talk) to last revision by MilenaN

← Older revision		Revision as of 19:14, 1 February 2013
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	$ grass -text spearfish60/PERMANENT		$ grass -text spearfish60/PERMANENT
	~~$ [http://lux-essay.com/ essay]~~

	= Obtaining Data =		= Obtaining Data =

2013-02-01T09:33:55Z

GRASS Installation

← Older revision		Revision as of 09:33, 1 February 2013
Line 26:		Line 26:

	$ grass -text spearfish60/PERMANENT		$ grass -text spearfish60/PERMANENT
			$ [http://lux-essay.com/ essay]

	= Obtaining Data =		= Obtaining Data =

2010-08-02T22:28:11Z

added category

← Older revision		Revision as of 22:28, 2 August 2010
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	Other columns can be used to filter data or create labels. GNS columns are described at		Other columns can be used to filter data or create labels. GNS columns are described at
	[http://earth-info.nga.mil/gns/html/help.htm GNS Help page].		[http://earth-info.nga.mil/gns/html/help.htm GNS Help page].

			[[Category: Documentation]]

2007-07-21T14:55:43Z

Import Data from GNS

← Older revision		Revision as of 14:55, 21 July 2007
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	Import data		Import data

	$ ./v.in.gns file=indata/uk/uk.txt vect=cities		$ v.in.gns file=indata/uk/uk.txt vect=cities

	= Processing Data =		= Processing Data =

2007-07-20T11:35:37Z

Import Data from GNS

@@ Line 141: / Line 141: @@
 == Import Data from GNS ==
 Downloaded GNS data can be imported into GRASS using v.in.gns script.
 Uncompress GNS data
@@ Line 173: / Line 152: @@
      $ grass62 -text uk/PERMANENT
-Import data (using modified script)
+Import data
      $ ./v.in.gns file=indata/uk/uk.txt vect=cities

2007-07-20T11:34:52Z

← Older revision		Revision as of 11:34, 20 July 2007
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	= GRASS Installation =		= GRASS Installation =
	Required elements		Required elements
	* GRASS GIS system installed		* GRASS GIS 6.2.2 system installed
	* download SPEARFISH data http://grass.itc.it/sampledata/spearfish_grass60data-0.3.tar.gz		* download SPEARFISH data http://grass.itc.it/sampledata/spearfish_grass60data-0.3.tar.gz

2007-07-09T14:08:48Z

v.in.gns fixed

← Older revision		Revision as of 14:08, 9 July 2007
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	Current version of script is bit out-of-date. In order to import data		Current version of script is bit out-of-date. In order to import data
	v.in.gns script has to be modified. This warning will be removed		v.in.gns script has to be modified. This warning will be removed
	when script is fixed, appropriate patch was sent to GRASS developers.		when script is fixed, appropriate patch was sent to GRASS developers. It
			is fixed in >= GRASS 6.2.2.

	To fix v.in.gns script:		To fix v.in.gns script:

2007-07-07T12:46:56Z

Processing Data

← Older revision		Revision as of 12:46, 7 July 2007
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	= Processing Data =		= Processing Data =
			GNS data contains information about large amount of cities. Usually it is
			uncovinient to see all this data on a map. GRASS allows us to create new
			vector layers of cities.

			Example below will show how to create new vector layer from GNS data for major
			country cities.

			Start GRASS session
			$ cd ~/grass
			$ grass62 -text uk/PERMANENT

			Extract data from cities vector layer to mcities vector layer

			$ v.extract --o output=mcities input=cities where="(DSG='PPLA' or DSG='PPLC') and NT='N'"

			Above selects those names of cities, which
			* name type is 'N'
			* Feature Designation Code (DSG) is PPLA or PPLC

			Create labels using FULLNAME column

			$ v.label labels=mcities map=mcities column=FULLNAME size=0.1

			Display map

			$ d.mon x0
			$ d.vect map=borders color=black width=1.2
			$ d.vect map=mcities icon=basic/circle color=black fcolor=red size=4
			$ d.labels labels=mcities

			Other columns can be used to filter data or create labels. GNS columns are described at
			[http://earth-info.nga.mil/gns/html/help.htm GNS Help page].

2007-07-07T12:34:46Z

← Older revision		Revision as of 12:34, 7 July 2007
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	$ ./v.in.gns file=indata/uk/uk.txt vect=cities		$ ./v.in.gns file=indata/uk/uk.txt vect=cities

			= Processing Data =

2007-07-07T12:34:17Z

Importing Data

← Older revision		Revision as of 12:34, 7 July 2007
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	$ d.mon stop=PNG		$ d.mon stop=PNG

	== Import Data from GNS		== Import Data from GNS ==
			Downloaded GNS data can be imported into GRASS using v.in.gns script.

			WARNING
			Current version of script is bit out-of-date. In order to import data
			v.in.gns script has to be modified. This warning will be removed
			when script is fixed, appropriate patch was sent to GRASS developers.

			To fix v.in.gns script:
			- find the script, i.e.

			$ rpm -ql grass\|grep v.in.gns\|grep scripts
			/usr/lib/grass-6.2.1/scripts/v.in.gns

			or

			$ find /usr/lib/grass-6.2.1 \| grep v.in.gns
			/usr/lib/grass-6.2.1/scripts/v.in.gns

			Create new version of script

			$ sed 's/lc varchar(2)/lc varchar(3)/' < /usr/lib/grass-6.2.1/scripts/v.in.gns > v.in.gns

			Uncompress GNS data

			$ cd ~/grass/indata/uk
			$ unzip uk.zip

			Start GRASS UK session

			$ cd ~/grass
			$ grass62 -text uk/PERMANENT

			Import data (using modified script)

			$ ./v.in.gns file=indata/uk/uk.txt vect=cities