bgpierc

# condensed version of Larkin's delentropy modification from
# https://gist.github.com/mxmlnkn/5a225478bc576044b035ad4a45c54f73

import numpy as np


def delentropy(image):
    # Using a 2x2 difference kernel [[-1,+1],[-1,+1]] results in artifacts!
    # In tests the deldensity seemed to follow a diagonal because of the
    # assymetry introduced by the backward/forward difference

bgpierc

# -*- coding: utf-8 -*-
import pandas as pd
import sqlalchemy

def dump_table_to_sqllite(srcEngine, srcTable, dest_path, 
                          chunksize = 20):
    """Dump a table from a source DB to a sqllite DB. Useful to cache often-used-data locally.

    Parameters
    ----------

bgpierc

from shapely.ops import cascaded_union, polygonize
from scipy.spatial import Delaunay
import numpy as np
import math
import shapely.geometry as geometry
import matplotlib.pyplot as plt


#Source: https://sgillies.net/2012/10/13/the-fading-shape-of-alpha.html
class ConcaveHull():