Jeremiah Johnson jeremiahajohnson

jeremiahajohnson / JS Pad.js

Last active August 29, 2015 14:03

Javascript zero padding

	function pad(n, width, z) {
	z = z \|\| '0';
	n = n + '';
	return n.length >= width ? n : new Array(width - n.length + 1).join(z) + n;
	}

	pad(10, 4); // 0010
	pad(9, 4); // 0009
	pad(123, 4); // 0123

jeremiahajohnson / GPSWeekSec.py

Created September 24, 2014 15:42

Python functions to transform GPS second to time

	from decimal import Decimal

	def timeconvert24(GPSweekSec):
	DayOfWeek = GPSweekSec / 86400
	Hour = Decimal(str(DayOfWeek))%1 * 86400 / 3600
	Minute = Decimal(str(Hour))%1 * 3600 / 60
	Second = Decimal(str(Minute))%1 * 60
	return "%02d" % (Hour,) + ":" + "%02d" % (Minute,) + ":" + "%02d" % (Second,)

	def timeconvert12(GPSweekSec):

jeremiahajohnson / GPStoUTC.py

Last active April 3, 2022 02:33

Python function to take GPS week and GPS seconds and return a UTC datetime string in the format "YYYY-MM-DD HH:MM:SS"

	def weeksecondstoutc(gpsweek,gpsseconds,leapseconds):
	import datetime, calendar
	datetimeformat = "%Y-%m-%d %H:%M:%S"
	epoch = datetime.datetime.strptime("1980-01-06 00:00:00",datetimeformat)
	elapsed = datetime.timedelta(days=(gpsweek*7),seconds=(gpsseconds+leapseconds))
	return datetime.datetime.strftime(epoch + elapsed,datetimeformat)

	weeksecondstoutc(1811,164196.732,16) ## --> '2014-09-22 21:36:52'

jeremiahajohnson / javascript.js

Last active August 29, 2015 14:08

Quick starter for esri, bootstrap, jQuery, and jQuery UI

	require([
	"dojo/dom", "dojo/on", "dojo/query", "dojo/request","dojo/keys",
	"dojo/_base/array",
	"esri/map", "esri/config", "esri/urlUtils", "esri/InfoTemplate", "esri/tasks/GeometryService", "esri/toolbars/edit", "esri/graphic",
	"esri/Color", "esri/symbols/SimpleMarkerSymbol", "esri/symbols/SimpleLineSymbol", "esri/symbols/SimpleFillSymbol",
	"esri/layers/ArcGISDynamicMapServiceLayer", "esri/layers/FeatureLayer",
	"dojo/domReady!"
	], function (
	dom, on, dojoQuery, request, keys,
	arrayUtils,

jeremiahajohnson / LocalToGPS.py

Created January 6, 2015 17:13

Local time to GPS Week and GPS Seconds

	def localtogps(timestring,timeformat,leapseconds,localoffset=0):
	import datetime
	epoch = datetime.datetime.strptime("1980-01-07 00:00:00","%Y-%m-%d %H:%M:%S")
	local = datetime.datetime.strptime(timestring,timeformat)
	utc = local - datetime.timedelta(hours=localoffset)
	diff = utc-epoch
	gpsWeek = diff.days/7
	secondsThroughDay = (utc.hour * 3600) + (utc.minute * 60) + utc.second
	if utc.isoweekday()== 7:
	weekday = 0