mlichter2 / isolines_examples

examples for isolines - a python library for street networks isolines and isochrones : https://github.com/mlichter2/isolines

isolines-examples

This is an examples repository for isolines a python library for street networks isolines and isochrones : https://github.com/mlichter2/isolines

isolines is a Python library for creating street networks isolines (equal-distance) and isochrones (equal-time) polygons with just one line of code. It is built on top of Shapely, geopandas, NetworkX and osmnx.

isolines allows you to create isolines:

• from OSM data without any data input or * use your own data: your own network and source locations

Examples include

• basic examples
• adding isolines and isochrones to an existing instance
• refining isolines' concave boundaries and smoothing
• refining source location geometry
• tweaking location geometry sample interval
• using different data sources
• example using US Census Tiger data
• geometry types
• using local coordinate systems

import isolines as il
df = il.isolines('Prospect Park, Brooklyn, NYC, USA', metric = 'time',values=[3, 6, 9])
df

	geometry	time
0	POLYGON ((-73.9715 40.6492,...	3
1	POLYGON ((-73.9708 40.6470,...	6
2	POLYGON ((-73.9704 40.6448...	9

However, if you which to explore your result with built-in visualization and be able to amend them and perform EDA use one of the following classes: GpdIsolimes, NXIsoliner, OsmIsolines

iso = il.OsmIsolines('Prospect Park, Brooklyn, NYC, USA', metric = 'time', values=np.arange(2.5, 22.5, 2.5), unit = 'ft', sample = 600)
iso.plot_isolines(figsize = (10, 10))