From 7c97aba9501781f5b63cfd573e484a3d5dc348a7 Mon Sep 17 00:00:00 2001
From: Tom Russell <tomalrussell@gmail.com>
Date: Wed, 30 May 2018 14:31:23 +0100
Subject: [PATCH] Script comments for OS data extract

---
 etl/extract_addressbase.py | 10 ++++++++++
 etl/extract_mastermap.py   |  7 +++++++
 2 files changed, 17 insertions(+)
 create mode 100644 etl/extract_addressbase.py
 create mode 100644 etl/extract_mastermap.py

diff --git a/etl/extract_addressbase.py b/etl/extract_addressbase.py
new file mode 100644
index 00000000..63ce53eb
--- /dev/null
+++ b/etl/extract_addressbase.py
@@ -0,0 +1,10 @@
+"""Extract address points from CSV in *.zip
+
+Relevant CSV columns::
+0 - UPRN
+1 - TOID (may not match given version of OS MasterMap)
+16 - OSGB Easting
+17 - OSGB Northing
+18 - Latitude
+19 - Longitude
+"""
diff --git a/etl/extract_mastermap.py b/etl/extract_mastermap.py
new file mode 100644
index 00000000..c9ac70de
--- /dev/null
+++ b/etl/extract_mastermap.py
@@ -0,0 +1,7 @@
+"""Extract buildings from *.gml.gz
+
+Features where::
+    descriptiveGroup = '(1:Building)'
+
+Use `fid` as source ID, aka TOID.
+"""