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# /// script
# requires-python = ">=3.10"
# dependencies = ["h3", "geopandas", "matplotlib"]
# ///

"""
Gosper Island demo: polyfill a state, compact, and plot the outlines.

Each compacted cell's children tile into a fractal Gosper-island shape
rather than a regular hexagon.

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Replace verbose license headers with SPDX identifiers

Proposal for uber/h3.

Problem

Every H3 C source file includes a 15-line Apache 2.0 license header with copyright years:

/*

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#include <stdio.h>
#include <stdlib.h>

#include "h3Index.h"
#include "iterators.h"
#include "polyfill.h"
#include "polygon.h"
#include "test.h"
#include "utility.h"

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typedef struct {
    double s;
    double c;
    double lng;
} LatLngPre;

static inline LatLngPre precompute_latlng(LatLng x) {
    double lat = x.lat / 2.0 + M_PI / 4.0;

    LatLngPre llp = {.s = sin(lat), .c = cos(lat), .lng = x.lng};

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# Justfile for https://github.com/uber/h3/pull/1042

_default:
    @just --list

purge:
    rm -rf build

build:
    -mkdir build

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import h3
import geopandas
import pandas as pd
import matplotlib.pyplot as plt
import contextily as cx


h = '8c196938064c5ff'

# convert to h3.LatLngPoly, which is compatible with

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How to get bat to highlight your justfiles.

From https://hynek.me/til/bat-justfile/

In the form of a justfile rule:

mkdir -p "$(bat --config-dir)/syntaxes"
cd "$(bat --config-dir)/syntaxes"
git clone https://github.com/nk9/just_sublime.git

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