https://github.com/alifeee/hmo-licences-in-sheffield

a map of HMO licenced premises in the Sheffield district
https://github.com/alifeee/hmo-licences-in-sheffield

geojson hmo-licences open-data sheffield

Last synced: 2 days ago
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a map of HMO licenced premises in the Sheffield district

• Host: GitHub
• URL: https://github.com/alifeee/hmo-licences-in-sheffield
• Owner: alifeee
• License: other
• Created: 2024-11-14T14:56:42.000Z (6 days ago)
• Default Branch: main
• Last Pushed: 2024-11-14T17:13:14.000Z (6 days ago)
• Last Synced: 2024-11-14T17:34:52.456Z (6 days ago)
• Topics: geojson, hmo-licences, open-data, sheffield
• Language: Shell
• Homepage: https://geojson.io/#data=data:text/x-url,https%3A%2F%2Fraw.githubusercontent.com%2Falifeee%2Fhmo-licences-in-sheffield%2Frefs%2Fheads%2Fmain%2Fhmos.geojson
• Size: 140 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# HMO Licences in Sheffield

HMO licences from  displayed on a map.

on geojson.io: 

on Google Maps: 

see more maps on 

![screenshot of map showing many markers. one has a popup with information](./images/map.png)

## Generate

the script takes around 10 minutes and should report an ETA when run

```bash

./geocode.sh  
 

# i.e., with format of hmo_licences_issued_to_9_september_2024.csv

./geocode.sh hmo_licences_issued_to_9_september_2024.csv "%2 %3 %1" 4

```


a `hmos.csv` file should now be available. there may be blank rows to be manually set, find them with:

```

while read num; do

  sed "${num}"'q;d' hmos.csv

done <<< $(cat hmos.csv | csvtool namedcol latitude - | awk '$0 ~ "null" {print NR}')

```

add some style information (from "Permitted Occupants" column)

```bash

# find min/max

csvtool namedcol "Permitted Occupants" hmo_licences_issued_to_9_september_2024.csv | sort -n | uniq -c

# make colour array

# e.g., with https://hihayk.github.io/scale/ or https://www.learnui.design/tools/data-color-picker.html

colors=(0A2F51 0F596B 16837A 1D9A6C 48B16D 74C67A ADDAA1 DEEDCF)

while read row; do

  occupants=$(echo "${row}" | csvtool col 5 -)

  index=$(($occupants - 4))

	[[ $index -lt 0 ]] && index=0

	[[ $index -ge "${#colors[@]}" ]] && index=$(( "${#colors[@]}" - 1 ))

	echo "home,#${colors[$index]}"

done <<< $(cat hmos.csv | awk 'NR>1') | sed '1s/^/marker-symbol,marker-color\n/' > /tmp/hmo_colors.csv

csvtool paste hmos.csv /tmp/hmo_colors.csv > /tmp/hmos.csv; mv /tmp/hmos.csv hmos.csv

```

to turn this into a geojson file, use https://github.com/pvernier/csv2geojson with:

```bash

git clone [email protected]:pvernier/csv2geojson.git

(cd csv2geojson/; go build main.go)

./csv2geojson/main hmos.csv

```

make GPX by using an online tool like 

## make google maps map

create a KML file by uploading `hmos.geojson` to  and `Save > KML`

import it to Google Maps ([how?](https://www.google.com/maps/about/mymaps/)), view the data table, duplicate the "Permitted Occupants" column and change the type to `number`, and style by Permitted Occupants, range 10 (or otherwise).