Time points along geometry in QGIS

pag-timer.py

from shapely.geometry import mapping, LineString
from qgis import processing
import timeit
import fiona


SHAPEFILE_DIRECTORY = 'path/to/shapefiles'

# create some linestrings to test on
scheme = {'geometry': 'LineString', 'properties': []}
for size in [100, 1000, 10000, 100000]:
    linestring = LineString([(5*i/size, 5*i/size) for i in range(size + 1)])
    with fiona.open(SHAPEFILE_DIRECTORY + f'/linestring_{size}.shp', 'w', 'ESRI Shapefile',  scheme) as c:
        c.write({'geometry': mapping(linestring), 'properties': {}})

def get_params(line_size, points_size):
    return {
        'INPUT': SHAPEFILE_DIRECTORY + f"/linestring_{line_size}.shp",
        'DISTANCE': 5 / points_size,
        'START_OFFSET': 0,
        'END_OFFSET': 0,
        'OUTPUT': SHAPEFILE_DIRECTORY + f"/points_{line_size}_{points_size}.shp",
    }

def time_pag(line_size, points_size, number=1):  # pag = points along geometry 
    callible = lambda: processing.run('native:pointsalonglines', get_params(line_size, points_size))
    return timeit.timeit(callible, number=number)