DJ Meph djmeph

Radically Self-Reliant Crypto Bot Workshop

Permalink: https://naked.bike/45

Launch Ubuntu 16.04 EC2 Instance

Select Ubuntu Server 16.04 LTS 64-bit
Recommend General Purpose - t2.small instance type. (1 CPU core, 2GB RAM)
Select a subnet. us-east-1x, us-east-2x, us-west-2x are $0.023/hr for t2.small
Select 8GB GP2 SSD ($0.80/month)

Nodej.s Meetup - Geospatial Indexing

Permalink: https://naked.bike/gs

MongoDB Example: https://github.com/djmeph/geospatial-indexing-mongodb

Companion App: https://github.com/djmeph/geospatial-indexing-angular

GeoRadius Function: https://gist.github.com/djmeph/30262c4591f46eeaa7c75d8af8c6493d

Node.js Detroit Meetup 2019-01-16

Useful Lambda Utilities for AWS's free tier

Permalink https://x.djmeph.net/af

Geolocation Search API:

https://x.djmeph.net/ab

Geolocation API Companion App:

https://x.djmeph.net/ad

Photographing a Supermassive Black Hole

Permalink

https://x.djmeph.net/bh

Sources

The bulk of the presentation was extrapolated from Katie Bouman's 1 hour presentation at Caltech titled, Imaging a Black Hole with the Event Horizon Telescope.

Open Source Music Coding

Permalink

https://x.djmeph.net/mc

Code Repositories

Sonic Pi

Node.js Express API Workshop

Permalink: https://x.djmeph.net/ao

API:

https://github.com/djmeph/api-development-workshop

Companion App:

https://github.com/djmeph/api-workshop-companion

	//Apigee Reg
	var apigee = {
	orgName: "ORG_NAME",
	appName: "APP_NAME",
	notifier: "NOTIFIER",
	senderID: "SENDER_ID",
	init: function () {
	document.addEventListener("deviceReady", this.deviceReady, false);
	},
	deviceReady: function () {

	/* This work is licensed under Creative Commons GNU LGPL License.

	License: http://creativecommons.org/licenses/LGPL/2.1/
	Version: 0.1
	Author: Norman Witte III/2014
	Web: http://djmeph.net/

	Adapted from https://gist.github.com/c4milo/3738875
	*/
	window.json2xml = function (o) {

	function post($url,$data, $username, $password) {

	$file = file_get_contents($data, true);
	$process = curl_init();
	curl_setopt($process, CURLOPT_URL, $url);
	curl_setopt($process, CURLOPT_USERPWD, "$username:$password");
	curl_setopt($process, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
	curl_setopt($process, CURLOPT_HTTPHEADER, $this->headers);
	curl_setopt($process, CURLOPT_HEADER, 1);
	curl_setopt($process, CURLOPT_VERBOSE, false);

	module.exports = (coord, brng, dist) => {
	dist = dist / 3958;
	brng = brng.toRad();
	var lat1 = coord[1].toRad(), lon1 = coord[0].toRad();
	var lat2 = Math.asin(Math.sin(lat1) * Math.cos(dist) + Math.cos(lat1) * Math.sin(dist) * Math.cos(brng));
	var lon2 = lon1 + Math.atan2(Math.sin(brng) * Math.sin(dist) * Math.cos(lat1), Math.cos(dist) - Math.sin(lat1) * Math.sin(lat2));
	if (isNaN(lat2) \|\| isNaN(lon2)) return null;
	return [lon2.toDeg(), lat2.toDeg()];
	}