David Heyman davidheyman

davidheyman / chunk_contours.py

Last active September 10, 2018 08:55

	"""Splits rasters into chunks and creates contours"""

	import os
	import argparse
	import uuid
	import re
	from osgeo import gdal

	def chunk():
	"""Splits rasters into 5000 x 5000 chunks."""

davidheyman / prep_rasters.py

Created September 24, 2018 09:13

A script to clumsily deal with GeoTIFF transparency and data types and convert to MBTiles

	"""Deal with raster transparency and convert to MBTiles"""

	import os
	import re
	from string import Template
	from shutil import copyfile
	from osgeo import gdal
	import rasterio

	PATH = 'data/geotiff/'

davidheyman / get_tiles.py

Created November 12, 2018 07:23 — forked from perrygeo/get_tiles.py

Get all map tiles for a geographic extent and zoom level(s)

	from __future__ import print_function
	import mercantile
	import urllib
	import time
	import os


	def download_tile(tileurl, tile, output_dir, pause=1):
	url = tileurl + '/{z}/{x}/{y}.png'.format(**tile.__dict__)
	local_path = url.replace(tileurl, output_dir)

davidheyman / get_tile_size.py

Created November 12, 2018 08:24

Get tile sizes from style-optimised vector tiles on Mapbox

	import mercantile
	import requests
	import settings

	def getStyle():
	r = requests.get('https://api.mapbox.com/styles/v1/axismaps/' + settings.MAPBOX_STYLE + '?access_token=' + settings.MAPBOX_TOKEN)
	return r.json()['modified']

	def download_tile(tileurl, tile, modified):
	url = tileurl + '/{z}/{x}/{y}.mvt'.format(**tile.__dict__)