lhammond

# To enable SSL in Rails you could now simply use *force_ssl* in your 
# ApplicationController but there is two more things to think about:
# In development our SSL webserver is running on port 3001 so we would
# actually need to use *force_ssl port: 3001* but then this wouldn't
# work for production.
# Also there is a good chance you might not always want to use SSL in development
# so it would be nice if we could just enable or disable SSL in the config.

# To make all this work first copy the file *ssl_with_configured_port.rb* to
# your *lib* directory. Second to enable SSL add *config.use_ssl = true* 

lhammond

Building GDAL 1.9.x with ESRI FileGDB support on OS X Lion

• Download the SDK from ESRI's website http://resources.arcgis.com/content/geodatabases/10.0/file-gdb-api
• Extract the SDK, and put the contents of the directory in a known location, I used ~/local/filegdb. Here's an example path to one of the files: ~/local/filegdb/lib/libFileGDBAPI.dylib
• I use ~/local/filegdb so it can stay isolated in it's own place. You can put it anywhere, but the next few steps might be different.
• Go into the directory containing the FileGDB SDK, e.g. ~/local/filegdb
• ESRI built these dylib's using @rpath's, so to avoid needing to mess with DYLD_LIBRARY_PATH, I updated the @rpath's using install_name_tool. There might be a more elegant way to handle this. If so, comments are welcome!
• Here are the commands I used to patch the dylibs, this is not required if you want to use DYLD_LIBRARY_PATH yourself:

lhammond

// Requires jQuery from http://jquery.com/
// and jQuerySparklines from http://omnipotent.net/jquery.sparkline

// AngularJS directives for jquery sparkline
angular.module('sparkline', []);
 
angular.module('sparkline')
    .directive('jqSparkline', [function () {
        'use strict';
        return {

lhammond

export default class GeoJsonMapLayer extends React.Component {
  render() {
    return (
      <div>
      </div>
    );
  }

  componentWillUnmount() {
    if (this.layer) {

lhammond

#!/usr/bin/ruby

# README
# gem install aws-sdk
# add this to bashrc
# export HT_DEV_AWS_ACCESS_KEY_ID=????
# export HT_DEV_AWS_SECRET_ACCESS_KEY=????
# put your pem file in ~/.ssh and chmod 0400
# for more info see; https://rubygems.org/gems/aws-sdk

lhammond

sudo apt-get install libgd2-xpm-dev
sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstable
sudo apt-get update
sudo apt-get install libgdal20 libgeos-c1v5 libmapserver2 cgi-mapserver mapserver-bin
sudo apt-get install spawn-fcgi

create /etc/init.d/mapserv
add the following

lhammond

http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails

#payload: [{"kind"=>"person"}]
Segment.where("payload @> ?", [{kind: "person"}].to_json)

#data: {"interest"=>["music", "movies", "programming"]}
Segment.where("data @> ?",  {"interest": ["music", "movies", "programming"]}.to_json)
Segment.where("data #>> '{interest, 1}' = 'movies' ")
Segment.where("jsonb_array_length(data->'interest') > 1")

lhammond

node_modules

lhammond

# Use this file for a user-configurable ALSA soundcard setup.
# Place in the user's home folder (/home/ham/.asoundrc).

# This file is built for a Tigertronics Signalink USB, a USB
# soundcard designed to interface a computer with an amateur
# radio transceiver for digital mode operation. This
# configuration allows multiple programs to access the same
# sound device simultaneously without blocking the device.
# This configuration is built on a custom modprobe
# configuration file (/etc/modprobe.d/alsa-base.conf) to

lhammond

• Gstreamer Pipeline Samples
  • Video
    • display test video
    • record to file
    • record and display at the same time(queue)
    • record webcam to *.mp4(jetson nano)
    • fps test
  • Audio
  • Mux Video and Audio
• Media File