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andrew burrell clavis-magna

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@banksean
banksean / perlin-noise-classical.js
Created February 15, 2010 10:00
two Perlin noise generators in javascript. The simplex version is about 10% faster (in Chrome at least, haven't tried other browsers)
// Ported from Stefan Gustavson's java implementation
// http://staffwww.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf
// Read Stefan's excellent paper for details on how this code works.
//
// Sean McCullough banksean@gmail.com
/**
* You can pass in a random number generator object if you like.
* It is assumed to have a random() method.
*/
@pamelafox
pamelafox / exportjson.js
Last active May 2, 2024 09:01
Google Spreadsheet JSON ExportHow-to at http://blog.pamelafox.org/2013/06/exporting-google-spreadsheet-as-json.html
// Includes functions for exporting active sheet or all sheets as JSON object (also Python object syntax compatible).
// Tweak the makePrettyJSON_ function to customize what kind of JSON to export.
var FORMAT_ONELINE = 'One-line';
var FORMAT_MULTILINE = 'Multi-line';
var FORMAT_PRETTY = 'Pretty';
var LANGUAGE_JS = 'JavaScript';
var LANGUAGE_PYTHON = 'Python';
@jeje
jeje / DS3231.cpp
Created March 12, 2012 10:53
Modified DS3231 library for compatibility with Arduino 1.0
// DS3231 Class is by Seeed Technology Inc(http://www.seeedstudio.com) and used
// in Seeeduino Stalker v2.1 for battery management(MCU power saving mode)
// & to generate timestamp for data logging. DateTime Class is a modified
// version supporting day-of-week.
// Original DateTime Class and its utility code is by Jean-Claude Wippler at JeeLabs
// http://jeelabs.net/projects/cafe/wiki/RTClib
// Released under MIT License http://opensource.org/licenses/mit-license.php
#include <Wire.h>
@sinergy
sinergy / new_gist_file
Created May 22, 2013 10:45
Check if Key existed in the JsonData Object of LitJSON (A C# JSON Parser) source: http://goo.gl/NxBcP
static public bool JsonDataContainsKey(JsonData data,string key)
{
bool result = false;
if(data == null)
return result;
if(!data.IsObject)
{
return result;
}
IDictionary tdictionary = data as IDictionary;
@wboykinm
wboykinm / geojson.php
Last active June 14, 2024 20:01
Sample PHP to Point GeoJSON
<?php
/**
* PHP GeoJSON Constructor, adpated from https://github.com/bmcbride/PHP-Database-GeoJSON
*/
# Connect to MySQL database
$conn = new PDO('mysql:host=localhost;dbname=mydatabase','myusername','mypassword');
# However the User's Query will be passed to the DB:
$sql = 'SELECT * from GDA_database WHERE user_query = whatever';
@ReeMii
ReeMii / vertical-align-middle.js
Created September 24, 2013 13:40
Vertical Align Middle
$(window).resize(function() {
$(".container > img").each(function() {
var cHeight = $(this).parent(".container").height(),
cWidth = $(this).parent(".container").width(),
iHeight = $(this).height(),
iWidth = $(this).width();
$(this).css({
top: 0.5*(cHeight - iHeight),
left: 0.5*(cWidth - iWidth)
});
@kylemcdonald
kylemcdonald / three.js.shader.html
Last active March 27, 2023 00:45
Minimal three.js shader example.
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
margin: 0px;
overflow: hidden;
}