Ireland boundary#

Provinces - OSi National Statutory Boundaries - 2019 - Ungeneralised

import os
from zipfile import ZipFile

import matplotlib.pyplot as plt

from h2ss import data as rd

plt.rcParams["xtick.major.size"] = 0
plt.rcParams["ytick.major.size"] = 0

URL = (
    "https://data-osi.opendata.arcgis.com/datasets/"
    "559bc3300384413aa0fe93f0772cb7f1_0.zip?"
    "outSR=%7B%22latestWkid%22%3A2157%2C%22wkid%22%3A2157%7D"
)
DATA_DIR = os.path.join("data", "boundaries")
FILE_NAME = "osi-provinces-ungeneralised-2019.zip"
DATA_FILE = os.path.join(DATA_DIR, FILE_NAME)

rd.download_data(url=URL, data_dir=DATA_DIR, file_name=FILE_NAME)

Data 'osi-provinces-ungeneralised-2019.zip' already exists in 'data/boundaries'.
Data downloaded on: 2023-10-29 22:11:40.353067+00:00
Download URL: https://data-osi.opendata.arcgis.com/datasets/559bc3300384413aa0fe93f0772cb7f1_0.zip?outSR=%7B%22latestWkid%22%3A2157%2C%22wkid%22%3A2157%7D
SHA256 hash: 2410768c3c1252498812967354f90e42f7dc37003f99df73b3fe544cee85df3d

ZipFile(DATA_FILE).namelist()

['Provinces___Ungen_2019.shp',
 'Provinces___Ungen_2019.shx',
 'Provinces___Ungen_2019.dbf',
 'Provinces___Ungen_2019.cpg',
 'Provinces___Ungen_2019.prj',
 'Provinces_-_National_Statutory_Boundaries_-_2019.xml']

data = rd.read_shapefile_from_zip(data_path=DATA_FILE)

data
ESRI_OID OBJECTID PROVINCE PV_ID GUID CENTROID_X CENTROID_Y AREA SHAPE_Leng SHAPE_Area geometry
0 1 1 Connacht 27001 d1070df4-924a-4f2d-b35b-d165b6a5a264 537106.05 774821.52 1.770933e+10 3.682460e+06 1.770933e+10 MULTIPOLYGON (((456212.468 744200.809, 456200....
1 2 2 Leinster 27002 567d5f84-9a09-4d9b-b943-0b5be07a15da 664436.40 707866.98 1.979878e+10 1.313867e+06 1.979878e+10 MULTIPOLYGON (((673229.094 598041.747, 673236....
2 3 3 Munster 27003 32947409-6cfa-4731-bcd1-1cf12e8193f8 544013.20 616670.03 2.467955e+10 3.631145e+06 2.467955e+10 MULTIPOLYGON (((430806.128 602244.549, 430815....
3 4 4 Ulster 27004 0b3f0251-a1d9-47cc-ab6d-295962b93cd0 620526.73 873476.28 8.086132e+09 2.297473e+06 8.086132e+09 MULTIPOLYGON (((549225.762 882044.879, 549218.... 
data.crs

<Projected CRS: EPSG:2157>
Name: IRENET95 / Irish Transverse Mercator
Axis Info [cartesian]:
- E[east]: Easting (metre)
- N[north]: Northing (metre)
Area of Use:
- name: Ireland - onshore. United Kingdom (UK) - Northern Ireland (Ulster) - onshore.
- bounds: (-10.56, 51.39, -5.34, 55.43)
Coordinate Operation:
- name: Irish Transverse Mercator
- method: Transverse Mercator
Datum: IRENET95
- Ellipsoid: GRS 1980
- Prime Meridian: Greenwich

data.shape

(4, 11)

data = data.dissolve()

data.bounds
minx miny maxx maxy
0 416216.755 519664.6145 734480.7393 966936.905 
data.plot(
    color="navajowhite",
    figsize=(7.5, 7.5),
    edgecolor="darkslategrey",
    linewidth=0.4,
)

plt.title("Ireland boundary from OSi ungeneralised data")
plt.tick_params(labelbottom=False, labelleft=False)
plt.tight_layout()
plt.show()
../_images/3470c769cb299e5112702bd557fc769c94efcaea6670a5ccdb465795672abce7.png
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