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View gist:25991ecd55a6fe04b1622f8edd7f63a0
function visibleTilesLoaded(viewer) {
var layer = viewer.scene().layer();
var geometry = layer.geometry();
var visibleTilesForLevel = function(level) {
return geometry.visibleTiles(viewer.view(), level);
var tileHasTexture = function(tile) {
var tile = layer.textureStore().query(tile);
kurtraschke / sleep.ps1
Last active Mar 2, 2016
PowerShell script to summarize a Windows PC's sleep history
View sleep.ps1
$filter = @{LogName='System';
$namespaces = @{"event"=""}
Get-WinEvent -FilterHashtable $filter | % {
$obj = New-Object PSObject
[xml]$_.ToXml() | Select-Xml -Namespace $namespaces "/event:Event/event:EventData/event:Data" | % {
View gist:1231aed1520e976e0765
Tue Jun 30 19:59:55 2015 :$GPZDA,235955.00,30,06,2015,00,00*68
Tue Jun 30 19:59:56 2015 :$GPZDA,235956.00,30,06,2015,00,00*6B
Tue Jun 30 19:59:57 2015 :$GPZDA,235957.00,30,06,2015,00,00*6A
Tue Jun 30 19:59:58 2015 :$GPZDA,235958.00,30,06,2015,00,00*65
Tue Jun 30 19:59:59 2015 :$GPZDA,235959.00,30,06,2015,00,00*64
Tue Jun 30 19:59:59 2015 :$GPZDA,235960.00,30,06,2015,00,00*6E
Tue Jun 30 20:00:00 2015 :$GPZDA,000000.00,01,07,2015,00,00*66
Tue Jun 30 20:00:01 2015 :$GPZDA,000001.00,01,07,2015,00,00*67
Tue Jun 30 20:00:02 2015 :$GPZDA,000002.00,01,07,2015,00,00*64
Tue Jun 30 20:00:03 2015 :$GPZDA,000003.00,01,07,2015,00,00*65
View gist:1160365f3d858d3fa1e4
Sort sort = new Sort(_spatialStrategy.makeDistanceValueSource(shape.getCenter()).getSortField(false)).rewrite(_searcher);
kurtraschke /
Last active Aug 29, 2015
GTFS-realtime test harness for frequency-based trips

GTFS-realtime test harness for frequency-based trips


This is a Python-based test harness which can be used to simulate a GTFS-realtime feed with trips on a frequency-based route. Specifically, it simulates arrivals on the AirBART route (obtain BART GTFS here), at the AirBART_OAK stop. For convenience, the script simulates two vehicles, which are perpetually three and seven minutes away, respectively.


View instance-details.json
"currentTime": 1391381290937,
"text": "OK",
"data": {
"instanceDetails": [
"contactEmail": "onebusaway@kurt-p7-1539",
"instanceName": "OneBusAway on kurt-p7-1539",
"twitterUrl": "",
"language": "en-US",
kurtraschke / cap.xjb
Created Nov 11, 2013
JAXB bindings file for CAP schema to produce enums from anonymous types.
View cap.xjb
<?xml version="1.0" encoding="UTF-8"?>
<jaxb:bindings xmlns:jaxb=""
<jaxb:bindings schemaLocation="CAP-v1.2.xsd" node="/xsd:schema">
<jaxb:bindings node="//xsd:element[@name='status']">
<jaxb:bindings node="./xsd:simpleType">
<jaxb:typesafeEnumClass name="StatusType" />
View gist:6249229
Recently (as in, over the past few months) the WMATA BusPosition feed has been behaving anomalously.
There are three observed problems:
1. The feed doesn't include the entire fleet - during the weekday rush hour we'd expect to see close to 900 buses, but this morning the feed returned fewer than 250 vehicles.
2. Bus positions return the wrong trip, or are lagging badly. Look at this example:

This Gist contains a script and supporting files for building a OneBusAway GTFS bundle with data for all agencies in the Baltimore/Washington area that have publicly released their data.

Configuration parameters come from two sheets in a Google Docs document:

The dependency on Google Docs could easily be removed by removing that part of and using a locally-maintained CSV file instead.

kurtraschke /
Created Dec 17, 2012
Find bounding box and convex hull of agency coverage (as WKT) for a OneBusAway TDS.
from mustaine.client import HessianProxy
from shapely.geometry import box
from shapely.ops import cascaded_union
service = HessianProxy("")
agencies = service.getAgenciesWithCoverage()
boxes = []