shakythesherpa

A Brief History of GIS

• http://www.esri.com/news/arcnews/fall12articles/origins-of-the-canada-geographic-information-system.html

Definition of Layer

• http://support.esri.com/en/knowledgebase/GISDictionary/term/layer
• http://www.esri.com/news/arcnews/fall04articles/arcgis-raster-data-model.html

ArcGIS Online

• http://www.whitehouse.gov/the-press-office/2014/05/27/white-house-science-fair-fact-sheet-backgrounder

shakythesherpa

import csv
import json
import os
import time
import urllib



def load(**kwargs):
    url = 'http://booths.nigeriaelections.org/getStuff.php'

shakythesherpa

This is companion code to this guide.

shakythesherpa

try:
    import simplejson as json
except:
    import json
import re
import requests

dir_url = 'http://api.tiles.mapbox.com/v3/modilabs/maps.json'
map_data = json.load(requests.get(dir_url).text)
nmis_exp = re.compile("Nigeria|nigeria|nmis")

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import subprocess
import sys, re
MERC = '+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs'

infile = sys.argv[1]

info_output = subprocess.Popen(['gdalinfo', infile], stdout=subprocess.PIPE).communicate()[0]

size_is_re = re.compile('Size is (?P<width>\d+), (?P<height>\d+)')
size_is = filter(lambda x: x, map(lambda x: size_is_re.match(x), info_output.split('\n')))

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from lxml import etree
import urllib2
import urlparse
import sys

# Prevents this script from failing when output is piped
# to another process
from signal import signal, SIGPIPE, SIG_DFL
signal(SIGPIPE,SIG_DFL)

shakythesherpa

This script processes VIIRS Nighttime Lights 2012 GeoTIFFs from the Earth Observation Group at NOAA National Geophysical Data Center to prepare them for rendering in TileMill and uploading to MapBox Hosting.

Read Lights of the Night on MapBox to learn more about NPP the functions of this script.

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Download and convert data from NYC open data portal

curl -o nynta.zip "https://nycopendata.socrata.com/api/geospatial/cpf4-rkhq?method=export&format=Shapefile"
cd nynta_12c

ogr2ogr can't deal with the projection directly. Replace content of nynta.prj with the following projection string:

PROJCS["NAD_1983_StatePlane_New_York_Long_Island_FIPS_3104_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["lambert_conformal_conic_2sp"],PARAMETER["False_Easting",984250.0],PARAMETER["False_Northing",0.0],PARAMETER["longitude_of_center",-74.0],PARAMETER["Standard_Parallel_1",40.66666666666666],PARAMETER["Standard_Parallel_2",41.03333333333333],PARAMETER["latitude_of_center",40.16666666666666],UNIT["Foot_US",0.3048006096012192]]

shakythesherpa

#a simple network-based SIR model written in Python
#Jon Zelner
#University of Michigan
#October 20, 2009

#import this file (networkSIRWithClasses) to use the model components
#or run as 'python networkSIRWithClasses.py' to do sample runs

import igraph
import random

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#a simple object-based SIR model written in Python
#Jon Zelner
#University of Michigan
#October 20, 2009

#import 'sirWithClasses' to use the components of this model as you wish
#or just run this script as 'python sirWithClasses.py' to do a sample model run

import random
import heapq