Ryan Cooper maptastik

This function takes an input GeoJSON dataset and creates a generates a hex grid from the bounding box of that layer. Because of the way hex grids are created using turfjs, using the bounding box doesn't necessarily result in every area of the input GeoJSON being covered by a hex grid. As such you can also set buffer parameters, radius and bufferUnits, to expand the area for which the bounding box is created. You can define the size of the hexagons with the cellSide and hexUnits parameters.

	import os
	def shps_in_dir(search_directory, full_path = True):
	shp_list = []
	for file in os.listdir(search_directory):
	if file.endswith('.shp'):
	shp_list.append(file)
	if len(shp_list) > 0 and full_path:
	shp_list = list(map(lambda x: os.path.join(search_directory,x), shp_list))

	return shp_list

	function allFieldsPopup(feature, layer) {
	let featureProperties = feature.properties;
	let popupHtml = '';
	for(let property in featureProperties) {
	popupHtml+=`<b>${property}:</b> ${featureProperties[property]}<br>`
	}
	layer.bindPopup(popupHtml)
	}

	function consolidatePolygons(polygonsJson) {
	let consolidatedPolygonsArray = [];
	let polygonsFeatures = polygonsJson.features;

	for (let i = 0; i < polygonsFeatures.length; i++) {
	let polygonFeature = polygonsFeatures[i];
	let coordinates = polygonFeature.geometry.coordinates;
	if (polygonFeature.geometry.type === "MultiPolygon") {
	for (let j = 0; j < coordinates.length; j++) {
	consolidatedPolygonsArray.push(coordinates[j]);

	function createArrayOfPointCoordinates(pointsJson) {
	let pointsCoordinatesArray = [];
	let pointsFeatures = pointsJson.features;

	for (let i = 0; i < pointsFeatures.length; i++) {
	let pointsFeature = pointsFeatures[i];
	if (pointsFeature.geometry != null) {
	let pointsFeaturesCoordinates = pointsFeature.geometry.coordinates;
	pointsCoordinatesArray.push(pointsFeaturesCoordinates);
	}

	function countPointsInPolygons(points, polygonJson) {
	let countsArray = [];
	let polygonFeaturesArray = polygonJson.features;
	for (let i = 0; i < polygonFeaturesArray.length; i++) {
	let iGeometry = turf.polygon(polygonFeaturesArray[i].geometry.coordinates);
	let pointsWithinPolygon = turf.pointsWithinPolygon(points, iGeometry);
	iGeometry.properties.count = pointsWithinPolygon.features.length;
	countsArray.push(iGeometry);
	}
	return turf.featureCollection(countsArray);