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adds info for polygons and reorganizes document

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Carla
2014-08-26 11:19:53 +02:00
parent a6a28d7352
commit a4d7962682
1 changed files with 27 additions and 3 deletions
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geocoder/postal-codes/README.md
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@@ -3,8 +3,14 @@ Postal code geocoder (polygons)
### Function ### 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 ### 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 ### Data Sources
Australian polygons - http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/2033.0.55.0012011?OpenDocument 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 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 ### 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) # 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: 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 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: The columns that are loaded are the following ones:
field_1: corresponding to ISO2 field_1: corresponding to ISO2
field_10: corresponds to latitude 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. 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._ _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._