vt-parcels

parcels vector tiles data as of 21 July 2020 in Rwanda

License of Vector Tiles Data

Shield:

This work is licensed under a Creative Commons Attribution 4.0 International License.

Please put the following attribution when you use this vector tiles of land parcels.

Copyright (c) 2020 Rwanda Land Management and Use Authority(RLMUA)

Vector tile URL

https://vt-parcels-2020.netlify.app/tiles/{z}/{x}/{y}.pbf

Preparation

create database

psql -h localhost -p 25432 -U docker -d postgres
create database rw_parcels;
\c rw_parcels;
create extension postgis;
select postgis_version();
\q

transform CRS to EPSG:4326

Use QGIS to transform CRS to 4326. Shapefiles can be created under wgs84 folder.

import Shapefiles

Use QGIS to import Shapefiles, or import by shp2pgsql command

cd PARCELS_21_07_2020/wgs84
shp2pgsql -I -s 4326 eastern_province.shp eastern_province.shp | psql -h localhost -p 25432 -U docker -d rw_parcels
shp2pgsql -I -s 4326 kigali_city_province.shp kigali_city_province | psql -h localhost -p 25432 -U docker -d rw_parcels
shp2pgsql -I -s 4326 northern_province.shp northern_province | psql -h localhost -p 25432 -U docker -d rw_parcels
shp2pgsql -I -s 4326 southern_province.shp southern_province | psql -h localhost -p 25432 -U docker -d rw_parcels
shp2pgsql -I -s 4326 western_province.shp western_province | psql -h localhost -p 25432 -U docker -d rw_parcels

create spatial index

CREATE INDEX idx_eastern_province_geometry ON public.eastern_province USING gist(geom);
CREATE INDEX idx_kigali_city_province_geometry ON public.kigali_city_province USING gist(geom);
CREATE INDEX idx_northern_province_geometry ON public.northern_province USING gist(geom);
CREATE INDEX idx_southern_province_geometry ON public.southern_province USING gist(geom);
CREATE INDEX idx_western_province_geometry ON public.western_province USING gist(geom);

analyze

ANALYZE;

Usage

• create vector tiles

npm i
npm run create

• extract pbf from mbtiles

npm run extract

• deploy to gh-pages

npm run deploy

• deploy to netlify

npm install -g netlify-cli
netlify -v
netlify login
netlify deploy

Time to generate vector tiles

• 21st September 2020
  • total number of tiles: 122016
  • actual number of tiles generated: 59943
  • 16867338.345ms=4.6853717625hours