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Table of Contents
User Guidelines for GIS Data
Assumes installation of the relevant tools: InstallationGuidelinesGISData
Import Data
See current urgent task: PakistanUnionCouncils
UUIDs
See: UUID
Geonames
There is an import_geonames() function in S3GIS which downloads/unzips the country file (a TAB-separated list) from http://download.geonames.org/export/dump/
It should be run for the different level sof hierarchy that you wish to import (generally just the lowest level as Geonames just has Point data, so it's best to use other sources for the Polygons 1st, that way the Geonames importer can locate these Points within the correct Polygons of the hierarchy)
NB It takes some time to do this import! Pakistan imports 95000 locations!
Python 2.5 doesn't support Zipfile.extract() & Zipfile.read() isn't unicode-safe. Until this is fixed, download the file manually 1st:
cd ~web2py/applications/eden/cache wget http://download.geonames.org/export/dump/PK.zip unzip PK.zip
In Web2py CLI:
gis.import_geonames('PK', 'L5') db.commit()
Alternate approach:
- Transform each line in this file into XML by regular expression:
^(\d*)\t([^\t]*)\t([^\t]*)\t([^\t]*)\t([0-9\.]*)\t([0-9\.]*)\t[^\t]*\t([A-Z]*).* into: <location> <id>$1</id> <name>$2</name> <asciiName>$3</asciiName> <localNames>$4</localNames> <lat>$5</lat> <lon>$6</lon> <featureClass>$7</featureClass> </location>
This can be done using an RE-capable editor (e.g. Kate), Perl or even Python. Note: Need to replace & with & and to remove any invalid characters
- Transform into S3XRC-XML using XSLT, stylesheet is available at
OpenStreetMap
See below: UserGuidelinesGISData
Shapefiles
Inspect the data using qGIS.
Use ogr2ogr to convert the data:
ogr2ogr -f CSV CSV TM_WORLD_BORDERS-0.3.shp -lco GEOMETRY=AS_WKT ogr2ogr -f geojson TM_WORLD_BORDERS-0.3.json TM_WORLD_BORDERS-0.3.shp
If needing to reproject (e.g. for the Haiti Departements):
ogr2ogr -f CSV haiti_departments Haiti_departementes_edited_01132010.shp -s_srs EPSG:32618 -t_srs EPSG:4326 -lco GEOMETRY=AS_WKT
NB AS_WKT requires OGR v1.6+
There is a function available in modules/s3gis.py
to import from CSV.
Example for Pakistan:
tablename = "gis_location" table = db[tablename] db.executesql("DROP INDEX name__idx on %s;" % tablename) # L0 db(table.name != "Pakistan").delete() db.commit() import csv csv.field_size_limit(2**20 * 10) # 10 megs db.import_from_csv_file(open("L0.csv", "rb")) db.commit() # L1 gis.import_csv("pak_adm1.csv", check_duplicates=False) db.commit() # L2 db(table.name == "Baluchistan").update(name="Balochistan") db(table.name == "Northern Areas").update(name="Gilgit Baltistan") db(table.name == "N.W.F.P.").update(name="Khyber Pakhtunkhwa") db(table.name == "F.A.T.A.").update(name="FATA") db(table.name == "F.C.T.").update(name="Islamabad") db(table.name == "Azad Kashmir").update(name="AJK") gis.import_csv("pak_adm2.csv", check_duplicates=False) db(table.name == "Sind").update(name="Sindh") db(table.name == "AJK").update(name="Pakistan Administered Kashmir") db(table.name == "FATA").update(name="Federally Administered Tribal Areas") db((table.name == "Islamabad") & (table.level == "L1")).update(name="Federal Capital Territory") db.commit() # L3 db(table.name == "Jaccobabad").update(name="Jacobabad") db(table.name == "Tando Allahyar").update(name="Tando Allah Yar") db(table.name == "Qambar Shahdad kot").update(name="Qambar Shahdadkot") gis.import_csv("pak_adm3.csv", check_duplicates=False) db(table.name == "Islamabad").update(name="Islamabad Capital Territory") db(table.name == "Tando Allah Yar").update(name="Tando Allahyar") db(table.name == "Qambar Shahdadkot").update(name="Qambar Shahdad Kot") db(table.name == "Leiah").update(name="Layyah") db(table.name == "Leiah Tehsil").update(name="Layyah Tehsil") db(table.name == "Kalur Kot Tehsil").update(name="Kallur Kot Tehsil") db(table.name == "De-excluded Area").update(name="Tribal Area") db(table.name == "De-excluded Area D.g Khan").update(name="Tribal Area") db.commit() # L4 db(table.name == "Noorpur Tehsil").update(name="Noorpur Thal Tehsil") jhang = db(table.name == "Jhang").select(table.id, limitby=(0, 1)).first().id table.insert(name="Ahmadpur Sial", parent=jhang, level="L3", url="http://en.wikipedia.org/wiki/Ahmedpur_Sial_Tehsil") gis.import_csv("punjab_l4.csv", check_duplicates=False) db.commit() db(table.name == "Mirwah Taluka").update(name="Thari Mirwah Taluka") db(table.name == "Shah Bunder Taluka").update(name="Shah Bandar Taluka") badin = db(table.name == "Badin").select(table.id, limitby=(0, 1)).first().id table.insert(name="Talhar", parent=badin, level="L3", url="http://en.wikipedia.org/wiki/Talhar") jamshoro = db(table.name == "Jamshoro").select(table.id, limitby=(0, 1)).first().id table.insert(name="Manjhand Taluka", parent=jamshoro, level="L3", url="http://en.wikipedia.org/wiki/Jamshoro_District") gis.import_csv("sindh_l4.csv", check_duplicates=False) db.commit() db(table.name == "F.r Kala Dhaka").update(name="F.R. Kala Dhaka") db(table.name == "Martoong Tehsil").update(name="Martung Tehsil") dikhan = db(table.name == "D. I. Khan").select(table.id, limitby=(0, 1)).first().id table.insert(name="Daraban Tehsil", parent=dikhan, level="L3") table.insert(name="Paroa Tehsil", parent=dikhan, level="L3") gis.import_csv("khyber_l4.csv", check_duplicates=False) db.commit() # L5 gis.import_csv("punjab_l5.csv", check_duplicates=False) gis.import_csv("sindh_l5.csv", check_duplicates=False) gis.import_csv("khyber_l5.csv", check_duplicates=False) db.commit() field = "name" db.executesql("CREATE INDEX %s__idx on %s(%s);" % (field, tablename, field))
Yahoo
- http://developer.yahoo.com/geo/geoplanet/data/
- Script to process http://pastie.org/1139680
WFS
It is possible to use the WFS Plugin to get data into qGIS & thence export into other formats.
May need to use a Custom CRS (in Settings menu - remember to Save!) such as:
- ESRI's Spherical Mercator (different to 900913) http://spatialreference.org/ref/esri/54004/proj4/
Can then go to the Layer Properties & Specify CRS to this User Defined Coordinate System.
Can then Save As and change the CRS to something like the standard WGS84.
Display Data
GeoServer
GeoServer can provide geospatial data in Raster (WMS) or Vector (WFS/KML) formats.
Once you have installed (Linux, Windows), then login:
- l: admin
- p: geoserver
Configure:
- Admin Password
- Contact Details
- Disable Global Settings (2.1+ only)
- WFS Details
- WMS Details inc the Limited SRS List - probably to just:
4326, 900913
- Disable the demo Layers & Layer Groups
- Add Workspace
- Add PostGIS Store
Import Shapefiles
e.g. Country Outlines:
These can be loaded direct into GeoServer, however there will be better performance by importing into PostGIS:
(can also use pgAdmin III GUI's Shapefile loader on plugins menu)
su postgres shp2pgsql -s 4326 -I TM_WORLD_BORDERS-0.3.shp public.countries | psql -d gis
To reproject the data into 900913 for a slight performance advantage:
drop constraint srid; update table set geomcolumn=transform(geomcolumn,900913);
Configure GeoServer
Add WMS Layer to Sahana Eden
- tbc
Grid
tbc: BluePrintGISGrid
Topographic Maps
- http://wiki.openstreetmap.org/wiki/Contours
- Alternate approach: SRTM 2 OSM
Old Printed Maps
Old Printed Maps can be 'Rectified' to be overlaid on the base maps:
- http://warper.geothings.net/
- http://mike.teczno.com/notes/canvas-warp.html
- http://labs.metacarta.com/rectifier/
OpenStreetMap
Base Map
We have out-of-the-box the ability to use OpenStreetMap Tiles as base layer.
This can include local OSM sites (OSM Taiwan is included as an example)
Vector Overlays
Can have OSM Vectors displayed over the top of other Base Layers (e.g. Satellite Images)
Import
We have an XSLT stylesheet to import .osm files, but this needs work to understand the admin hierarchy properly.
- http://wiki.openstreetmap.org/wiki/Map_Features#Places
- http://wiki.openstreetmap.org/wiki/Placename_hierachies is_in tag
Geofabrik have updated extracts daily for Pakistan:
Otherwise pull a BBOX directly using Osmosis:
Ruby script to generate KML of recently-added locations by a group of users:
Basemap for Garmin GPS
PostgreSQL management
- Connect to Database (or use pgAdmin III GUI's PSQL Console on plugins menu)
su postgres psql
or
psql -d my_spatial_db -U username
- List Databases
\l
- List Tables
\d
- List Table structure
\d tablename select field/* from tablename where field = 'value';
PostGIS functions
- Centroids
SELECT name, iso2, asText(ST_Transform(ST_Centroid(the_geom), 4326)) AS centroid FROM countries;
Data Sources
- VMap0: http://en.wikipedia.org/wiki/Vector_Map
- Admin 0 & 1, Hydro features, Raster & Vector: http://www.naturalearthdata.com/
- Admin 1-4: http://geonames.org
OGC (WMS/WFS)
- http://geonetwork-opensource.org/geonetwork-nodes
- http://www.ogc-services.net
- BlueMarble & Mosaic (!LandSat7): http://onearth.jpl.nasa.gov/
- Hazard Layers: http://preview.grid.unep.ch:8080/geoserver/ows?service=WMS&request=GetCapabilities
- Hazard Layers: http://www.pdc.org/mde/services.jsp
- Massachusetts: http://lyceum.massgis.state.ma.us/wiki/doku.php
Attachments (12)
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srtm.sld
(2.5 KB
) - added by 14 years ago.
Official SRTM styling
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topography.sld
(2.1 KB
) - added by 14 years ago.
Common Topography styling
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get.sh
(48.9 KB
) - added by 14 years ago.
Script to download SRTMv4 GeoTIFFs
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utf8.py
(1.0 KB
) - added by 13 years ago.
Encode GADM as UTF8
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geowebcache.xml
(9.5 KB
) - added by 13 years ago.
Configuration for GADM
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gadm_v1_lev0_base_sld.xml
(7.5 KB
) - added by 13 years ago.
SLD for GADM L0 Base Layer
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gadm_v1_lev0_overlay_sld.xml
(12.5 KB
) - added by 13 years ago.
SLD for GADM L0 Overlay
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gadm_v1_lev1_overlay_sld.xml
(12.0 KB
) - added by 13 years ago.
SLD for GADM L1 Overlay
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gadm_v1_lev2_overlay_sld.xml
(12.4 KB
) - added by 13 years ago.
SLD for GADM L2 Overlay
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populationDensity.sld
(1.4 KB
) - added by 13 years ago.
GPWv3 SLD
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moveWKT.py
(1.0 KB
) - added by 11 years ago.
Move WKT column to end of CSV
- KML2WKT.py (1.9 KB ) - added by 11 years ago.
Download all attachments as: .zip