guymac’s gists

guymac / mp3playlist

Last active February 19, 2025 10:21

Example of using HTML5 as a music playlist. This html would be put in a directory and all the mp3 files that it references in a subdirectory called mp3. The whole thing can be written to CD-R where this html serves as the music playing application (and MP3 CD-Rs will autoplay in most non-interactive devices).

	<html>
	<head>
	<title>EDM Favorites Volume 4</title>
	<script type="text/javascript">
	//<![CDATA[

	(function(){

	// audioElement = HTML5 Audio
	AudioHandler = function(audioElement)

guymac / setcover.cpp

Last active July 22, 2021 20:54

Embeds cover art in music files (MP3, M4A/AAC, Ogg/Vorbis)

	/*
	Command-line application for embedding JPEG cover art in MP3, MP4 and OGG audio files.

	Based on taglib-1.7 (debian libtag1-dev)
	and libb64 (http://libb64.sourceforge.net/) needed for OGG Vorbis embedded cover art

	g++ -I/usr/local/include/taglib -L/usr/local/lib -ltag -lb64 setcover.cpp -o setcover
	g++ -I/opt/homebrew/include/taglib -L/opt/homebrew/include/b64 -ltag -lb64 setcover.cpp -o setcover
	*/

guymac / risk10hdl.groovy

Last active December 28, 2015 19:39

Groovy code used to analyze the risk formula used in the new cholesterol guidelines.

	A = 0.91436
	B = 61.1816
	C = [ 12.344, 11.853, 2.664, 7.99, 1.769, 1.764 ]

	TC = 180 // mg/dL
	BPS = 120 // systolic

	import static java.lang.Math.log // ln
	import static java.lang.Math.exp // e^x

guymac / HiRISE_Data_Location.groovy

Last active December 28, 2015 19:39

Line-for-line (or as close to it as possible) port of a Perl CLI utility to Groovy.

	//#!/usr/bin/env groovy

	CVS_ID = 'HiRISE_Data_Location $Revision: 1.1 $ $Date: 2013/11/01 19:47:41 $'

	println CVS_ID

	Command_Name = ('$RCSfile: HiRISE_Data_Location,v $' =~ /(\w+),v/)[0][1]

	// Number of orbits per directory.
	DEFAULT_ORBITS_PER_DIRECTORY = 100

guymac / charts.groovy

Last active August 29, 2015 13:56

Groovy x-y charting function

	import org.jfree.chart.ChartFactory
	import org.jfree.chart.ChartPanel
	import org.jfree.chart.plot.XYPlot
	import org.jfree.chart.renderer.xy.XYDotRenderer

	import org.jfree.data.time.TimeSeriesCollection
	import org.jfree.data.xy.XYSeriesCollection

	import groovy.swing.SwingBuilder

guymac / fpc.groovy

Last active August 29, 2015 13:57

Script used to convert lat-lon footprints to map coordinates, reading them from one database and writing to another.

	/**
	Script to take footprint polygons from one database, perform a conversion on
	them and write them to another database.
	*/
	MARS_RADIUS_METERS = 3394500 as double
	MARS_CIRCUM_METERS = 2Math.PIMARS_RADIUS_METERS as double

	// cutoff
	EQ_POLAR_LAT_LIMIT = 65

guymac / SpotLister.java

Last active September 9, 2024 18:14

Given a Spotify playlist URL, prints out a track listing.

	import java.io.*;
	import java.net.*;
	import java.net.http.*;
	import java.nio.charset.*;
	import java.util.*;
	import java.util.concurrent.CompletableFuture;
	import javax.swing.text.html.parser.*;
	import javax.swing.text.html.*;
	import javax.swing.text.*;

guymac / jp2_to_tiff.java

Last active July 24, 2022 00:12

Converting a Jpeg-2000 to TIFF

	import java.awt.image.BufferedImage;
	import java.io.File;
	import java.io.IOException;
	import javax.imageio.ImageIO;

	/**
	* https://github.com/jai-imageio/jai-imageio-core
	* https://github.com/jai-imageio/jai-imageio-jpeg2000
	*
	* Example of fetching dependencies, compiling, and running.