From a4d7962682e4e1d5a817b05dcad816142eca4354 Mon Sep 17 00:00:00 2001 From: Carla Date: Tue, 26 Aug 2014 11:19:53 +0200 Subject: [PATCH] adds info for polygons and reorganizes document --- geocoder/postal-codes/README.md | 30 +++++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) diff --git a/geocoder/postal-codes/README.md b/geocoder/postal-codes/README.md index 7c4b55f..9b3c89e 100644 --- a/geocoder/postal-codes/README.md +++ b/geocoder/postal-codes/README.md @@ -3,8 +3,14 @@ Postal code geocoder (polygons) ### Function +By following the next steps a table is populated with zipcodes from Australia, Canada, USA and France (identified by iso3) related with their spatial location in terms of polygons. + ### Creation steps +1. Import the four files attached in the section "Datasources". + +2. Run sql/build_data_table.sql. Notice that table "postal_code_polygons" should exist in advance with columns: _the_geom_, _adm0_a3_ and _postal_code_. + ### Data Sources Australian polygons - http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/2033.0.55.0012011?OpenDocument @@ -17,14 +23,21 @@ USA polygons - http://www2.census.gov/geo/tiger/TIGER2013/ZCTA5/tl_2013_us_zcta5 French polygons - http://www.data.gouv.fr/dataset/fond-de-carte-des-codes-postaux -All countries points [GeoNames](www.geonames.org) - http://download.geonames.org/export/zip/allCountries.zip - ### Preparation details +The names of the imported files are: + +- doc for Australia table +- gfsa000a11a_e for Canada table +- tl_2013_us_zcta510 for USA table +- codes_postaux for France table + # Postal code geocoder (points) -1. Download the allCountries.zip file from [GeoNames](www.geonames.org). Import and rename the table as tmp_zipcode_points. You can follow the manual process explained below instead. +### Function + +By following the next steps a table is populated with zipcodes of different countries (identified by iso3) related with their spatial location in terms of points. This dataset includes data for the following countries: @@ -35,6 +48,11 @@ IT, LU, SK, LI, PR, IM, NO, PT, PL, FI, JP, CA, DE, HU, PH, SE, VA, YT, MK, FR, MH, RO, FO, GF, AD, HR, DZ, GT, AU, AS, BE, AT ```` +### Creation steps + +1. Download the allCountries.zip file from [GeoNames](www.geonames.org). Import and rename the table as tmp_zipcode_points. You can follow the manual process explained below instead. + + The columns that are loaded are the following ones: field_1: corresponding to ISO2 field_10: corresponds to latitude @@ -54,6 +72,12 @@ In the first row, add the following columns: iso2, zipcode, lat, long. Import the file ignoring step 2. +### Data Sources + +All countries points [GeoNames](www.geonames.org) - http://download.geonames.org/export/zip/allCountries.zip + +### Preparation details + _The big size of the dataset may cause interruptions in the processing of the coordinates after uploading the file, manipulating the file before importing is a faster workaround._