vilmosioo’s gists

vilmosioo / ArcBall.java

Last active November 27, 2017 11:13

Performing the ArcBall rotation effect. This example code is written in Java and used with OpenGL but it can be adapted to other technologies. Many thanks to the great developers that helped me use this. The idea of the ArcBall rotation and how to implement it are NOT mine but it took some time to integrated with my application. I hope this gist…

	public class ArcBall {

	private static final float Epsilon = 1.0e-5f;

	Vector3f StVec; // Saved click vector
	Vector3f EnVec; // Saved drag vector
	float adjustWidth; // Mouse bounds width
	float adjustHeight; // Mouse bounds height

	public ArcBall(float NewWidth, float NewHeight) {

vilmosioo / Constellations.php

Last active December 16, 2015 05:09

PHP array of constellation names and their abbreviation.

	<?php
	$constellations = array(
	"Andromeda" => "and",
	"Antlia" => "ant",
	"Apus" => "aps",
	"Aquarius" => "aqr",
	"Aquila" => "aql",
	"Ara" => "ara",
	"Aries" => "ari",
	"Auriga" => "aur",

vilmosioo / Convert.php

Created April 21, 2013 02:41

Recently I had to transfer an sqlite database to mysql. Unfortunately, there are a few minor differences between the dump files. This PHP script will try and transform the sqlite dump file to a mysql dump file. Feel free to contribute.

	<?php
	$read = @fopen("dump_sqlite", "r");
	$write = @fopen("dump_mysql", "w");

	if ($read && $write) {
	while (($buffer = fgets($read, 4096)) !== false) {
	// replace all double-quotes (") with grave accents (')
	$buffer = preg_replace('/"/', "'", $buffer);
	// replace "autoincrement" with "auto_increment"
	$buffer = str_replace("autoincrement", "auto_increment", $buffer);

vilmosioo / requestAnimationFrame.js

Created May 2, 2013 15:59

JavaScript polyfill for requestAnimationFrame

	(function() {
	var lastTime = 0;
	var vendors = ['webkit', 'moz'];
	for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
	window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
	window.cancelAnimationFrame =
	window[vendors[x]+'CancelAnimationFrame'] \|\| window[vendors[x]+'CancelRequestAnimationFrame'];
	}

	if (!window.requestAnimationFrame)

vilmosioo / Picking.java

Created May 23, 2013 11:25

OpenGL picking in Java using the stencil buffer. This script is not meant to work directly, but rather for a simple guide on how to implement picking. it is worth mentioning that this method is just one of many. I also tried using select rendering and color picking methods, but I find this the easiest one to use.

	// make sure you enable the stencil buffer when creating the canvas
	GLProfile profile = GLProfile.get(GLProfile.GL2);
	GLCapabilities capabilities = new GLCapabilities(profile);
	capabilities.setStencilBits(8);

	// when picking, enable stencil test
	if (picking) {
	gl.glEnable(GL2.GL_STENCIL_TEST);
	gl.glStencilOp(GL2.GL_KEEP, GL2.GL_KEEP, GL2.GL_REPLACE);
	} else {

vilmosioo / pre-commit

Created September 6, 2013 13:41

Run grunt jshint before every commit. The commit fails if any warnings/errors are generated. Helps avoid "jshint fix" style commits

	#!/usr/bin/env node
	var exec = require('child_process').exec;

	// Runs the build task, in our case `grunt jshint`
	exec('grunt jshint', function (error, stdout, stderr) {

	// Build task output might be useful to the developer so let's print it
	// We could also log it in a file
	console.log(stdout);

vilmosioo / Gruntfile.js

Created September 16, 2013 15:02

Example usage of ng-constant. Replace <...> with appropriate values.

	grunt.initConfig({
	ngconstant: {
	<task>: [
	{
	dest: '<destination file>',
	name: '<module name>',
	constants: {
	'<constant name>': '<constant value>',
	'<constant name>': { ... }
	'<constant name>': grunt.file.readJSON('<JSON file>')

vilmosioo / Gruntfile.js

Last active December 23, 2015 04:39

Example usage of ng-constant to create environment variables.

	grunt.initConfig({
	ngconstant: {
	dev: [
	{
	dest: 'path/to/constants.js',
	name: 'Constants',
	constants: {
	'<constant name>': grunt.file.readJSON('path/to/dev.json'),
	}
	}

vilmosioo / gist:8146568

Last active January 1, 2016 12:48

How to install Sky Watch client app.

git clone https://github.com/vilmosioo/Sky-Watch.git
cd src/client
bower install &amp; npm install

vilmosioo / controller.js

Created January 18, 2014 14:46

Registering a controller in angular.

	// How to register a controller normally

	angular.module('ngApp').controller(/controller code/);

	// How to register a controller after application bootstrap

	$controllerProvider.register(/controller code/);

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