jaredfolkins

➜  h2demo git:(master) go run -race h2demo.go
2015/03/31 08:53:07 Listening on https://localhost:4430/
2015/03/31 08:53:11 Ignoring frame: [FrameHeader GOAWAY len=8]
==================
WARNING: DATA RACE
Write by goroutine 15:
  bytes.(*Buffer).Truncate()
      /usr/local/Cellar/go/1.4.2/libexec/src/bytes/buffer.go:62 +0x3b
  bytes.(*Buffer).Reset()
      /usr/local/Cellar/go/1.4.2/libexec/src/bytes/buffer.go:75 +0x3e

jaredfolkins

gorename -from '"github.com/dancannon/gorethink".Db' -to DB -v
gorename -from '"github.com/dancannon/gorethink".DbCreate' -to DBCreate -v
gorename -from '"github.com/dancannon/gorethink".DbDrop' -to DBDrop -v
gorename -from '"github.com/dancannon/gorethink".RqlCompileError' -to ErrRQLCompile -v
gorename -from '"github.com/dancannon/gorethink".RqlRuntimeError' -to ErrRQLRuntime -v
gorename -from '"github.com/dancannon/gorethink".RqlClientError' -to ErrRQLClient -v
gorename -from '"github.com/dancannon/gorethink".RqlDriverError' -to ErrRQLDriver -v
gorename -from '"github.com/dancannon/gorethink".RqlConnectionError' -to ErrRQLConnection -v

jaredfolkins

Processing LiDAR to extract building heights

Walk through

Detailed walk through of building extraction using postgis

First lets pull a data layer from of openstreetmap. You can do this any which way you’d like, as there are a variety of methods for pulling openstreetmap data from their database. Check the [wiki] (http://wiki.openstreetmap.org/wiki/Downloading_data) for a comprehensive list. My favourite method thus far is pulling the data straight into QGIS using the open layers plugin. For those who may want to explore this method, check [this tutorial] (http://www.qgistutorials.com/en/docs/downloading_osm_data.html). For building extraction you only need building footprints, and include the building tags. Not all polygons are of type building in OSM, so we can download all the polygons, and then filter the layer for only polygons tagged as buildings.

LiDAR data was pulled from USGS via the Earth Explorer site. [Here] (http://earthobservatory.nasa.gov/blogs/ele

jaredfolkins

// passes
total = 2147483647 * 2 + 1;
a = new Array(total);
console.log("total:" + total + " length:" + a.length);

// fails
total = 2147483647 * 2 + 2;
a = new Array(total);
console.log("total:" + total + " length:" + a.length);

jaredfolkins

Install WireGuard via whatever package manager you use.  For me, I use apt.

$ sudo add-apt-repository ppa:wireguard/wireguard
$ sudo apt-get update
$ sudo apt-get install wireguard

MacOS
$ brew install wireguard-tools

Generate key your key pairs.  The key pairs are just that, key pairs.  They can be