I have a set of points of a location. I am trying to create an isoline using those points. In order to generate isolines I used convex hull and alphashape which is creating kind of box shaped or straight cut line kind of polygon structure like below. How do I get a proper isoline shape? What is way of perfect way to generate an isochrone using python?
print(df)
id latitude longitude geometry
8758520180 53.334261 -2.569419 POINT (-2.56942 53.33426)
9339285446 53.346211 -2.575348 POINT (-2.57535 53.34621)
616761660 53.340828 -2.566912 POINT (-2.56691 53.34083)
9454070930 53.338889 -2.574538 POINT (-2.57454 53.33889)
9454071045 53.339388 -2.574591 POINT (-2.57459 53.33939)
and so on.
import alphashape
polygon= alphashape.alphashape(df['geometry'], 0.20)
GeoDataFrame(polygon, crs="EPSG:4326", geometry=p_df['geometry'])
final output by alphashape:-
Excepted output (sketch):-
points :-
