mpetroff’s gists

mpetroff / index.html

Created October 30, 2021 20:41

Implementation of "A Square Equal-Area Map Projection with Low Angular Distortion, Minimal Cusps, and Closed-Form Solutions": https://doi.org/10.1145/3460521

	<!DOCTYPE html>
	<html lang="en">
	<meta charset="utf-8">
	<title>New Projection</title>
	<style>
	.stroke {
	fill: none;
	stroke: #000;
	stroke-width: 2px;
	}

mpetroff / planck-ml-map.fits

Last active April 28, 2020 17:33

Foreground-cleaned CMB map from Planck data and "Full-sky Cosmic Microwave Background Foreground Cleaning Using Machine Learning"

This file has been truncated, but you can view the full file.

View raw

mpetroff / index.html

Created October 24, 2017 13:05

Pannellum NEAREST interpolation test

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>NEAREST interpolation test</title>
	<link rel="stylesheet" href="pannellum.css"/>
	<script type="text/javascript" src="pannellum.js"></script>
	<style>
	html, body, #panorama {
	height: 100%;

mpetroff / configuration-file-decoder.py

Created August 28, 2016 17:35

Ricoh Theta desktop application configuration file decoder

	#!/usr/bin/env python

	'''
	Decodes encrypted configuration file for Ricoh Theta desktop application.
	I'm not sure what the point of double AES encryption is when the key is
	embedded right in the executable.

	Requires pycryto

	Matthew Petroff <https://mpetroff.net/>, 2016

mpetroff / jail.local

Last active March 28, 2025 03:19

JupyterHub PAM Authentication Fail2ban Configuration

	# /etc/fail2ban/jail.local
	[jupyterhub]
	enabled = true
	port = 443
	filter = jupyterhub
	backend = systemd
	maxretry = 6

mpetroff / find-subarray.js

Created January 21, 2016 22:44

Find subarray in JavaScript

	function findSubarray(arr, subarr) {
	for (var i = 0; i < 1 + (arr.length - subarr.length); i++) {
	var j = 0;
	for (; j < subarr.length; j++)
	if (arr[i + j] !== subarr[j])
	break;
	if (j == subarr.length)
	return i;
	}
	return -1;

mpetroff / index.html

Created March 28, 2015 02:29

Bootstrap Navbar without jQuery

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<!-- The above 3 meta tags must come first in the head; any other head content must come after these tags -->

	<title>Navbar Template for Bootstrap</title>

mpetroff / tms_to_xyz.py

Created October 4, 2014 17:53

Convert between tms and xyz map tile structures

	#!/usr/bin/python

	# Converts between tms and xyz map tile structures
	# October 2014, Matthew Petroff <http://mpetroff.net>

	# Released into the public domain using the CC0 Public Domain Dedication
	# See <http://creativecommons.org/publicdomain/zero/1.0/>

	import os
	import subprocess

mpetroff / process.sh

Created October 4, 2014 17:25

Convert marine gravity anomaly map to GeoTIFF

	# Convert to NetCDF
	img2grd grav.img.23.1 -Ggrav.nc -Rg

	# Reencode since gdal didn't like NetCDF file
	cdo -f nc4c -k lines copy grav.nc grav2.nc

	# Create GeoTIFF
	gdal_translate -a_srs EPSG:4326 grav2.nc grav.tif

	# Reproject as EPSG:3857

mpetroff / navspark-gps-library-c-files.txt

Created May 31, 2014 01:56

NavSpark GPS Library C Files

	allocator.c
	almanac.c
	asic_gtc_latch.c
	asic_noise_channel.c
	asic_pse_share.c
	asic_rtc.c
	asic.c
	batch_predict_orbit.c
	binmsg.c
	bitcount_handler.c

Matthew Petroff mpetroff