stephanbogner’s gists

stephanbogner / joint.html

Last active July 23, 2017 11:47

Joint between two particles (verlet integration)

	<canvas id="myCanvas" width="600" height="400"></canvas>
	<style type="text/css">
	canvas {
	background: #F9F9F9;
	margin: 3rem auto;
	display: block;
	}
	</style>
	<script>
	var point1, point2, canvas, context, fps, interval, cursorX, cursorY;

stephanbogner / magnetism.html

Last active July 23, 2017 13:52

Magnet-like repulsion of two points

	<canvas id="myCanvas" width="600" height="400"></canvas>
	<style type="text/css">
	canvas {
	background: #F9F9F9;
	margin: 3rem auto;
	display: block;
	}
	</style>
	<script>
	var point1, point2, canvas, context, fps, interval, cursorX, cursorY;

stephanbogner / draw.js

Created July 31, 2017 12:31

Small helpers to convert svg points to arrays

	// Example
	// Input: getCoordinatesFromSvgCoordinatesString('M0.5,0.5 L0.5,89.5 L141.5,89.5 L141.5,0.5 L0.5,0.5 Z')
	// Output: array like example above

	function getCoordinatesFromSvgCoordinatesString(svgString){
	var coordinates = [];
	var svgParts = svgString.split(' ');
	var cursor = {
	"x": 0,
	"y": 0

stephanbogner / bearingOnLine.js

Created August 14, 2017 11:41

TurfJS Calculate bearing on a certain point on a line (with a buffer)

	// import turf

	function bearingOnLine(feature, distance, buffer, units){
	var lineDistance = turf.lineDistance(feature, units);
	buffer = buffer \|\| lineDistance * 0.07;
	var measureFromDistance = Math.max(0, distance - buffer);
	var measureToDistance = Math.min(lineDistance, distance + buffer);

	var measureFrom = turf.along(feature, measureFromDistance, units);
	var measureTo = turf.along(feature, measureToDistance, units);

stephanbogner / test.js

Created August 19, 2017 18:47

[TurfTest] Check how 'line-distance' measures for routes across the antimeridian

stephanbogner / timeHelper.js

Last active September 5, 2017 14:16

Some snippets for working with days/months/years

	console.log('In which month is day #368: ', 'Month ' + (getMonthIdFromDay(368).index + 1) + ' of year ' + (getMonthIdFromDay(368).cycle + 1));
	// -> In which month is day #368: Month 1 of year 2

	console.log('Days in the last quarter of a year: ', getDaysPerQuarter()[3] );
	// -> Days in the last quarter of a year: 92

	function getMonthIdFromDay(day) {
	var dayRange = valuesToRange(getDaysPer('month'));
	return getPositionInLoopingRange(day, dayRange);
	}

stephanbogner / gist:5e005aed1db59e45b32b7a6b6966bdcd

Created October 18, 2017 18:53

Launch mongod with more possible open files

sudo launchctl limit maxfiles 16384 16384 && ulimit -n 16384

stephanbogner / index.html

Last active October 24, 2022 12:33

Save svg from dom as file (great when working with d3)

	<a id="downloadLink" href="" download="diagram.svg">Download ↓</a>
	<svg id="svg" width="120" height="120">
	<rect fill="#000000" x="10" y="10" width="100" height="100"></rect>
	</svg>

	<script type="text/javascript">
	setDownloader('downloadLink', 'svg')

	function setDownloader(linkId, svgId) {
	// Get svg element

stephanbogner / index.html

Created November 8, 2017 14:49

Simple example of using javascript to take a photo from a website

	<!DOCTYPE html>
	<html>

	<head>
	<meta charset="UTF-8">
	<title>Camera</title>
	<script src="https://code.jquery.com/jquery-3.2.1.min.js" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4=" crossorigin="anonymous"></script>
	<meta name="viewport" content="width=device-width,initial-scale=1">
	<style type="text/css">
	.cameraRoll {

stephanbogner / index.html

Created November 10, 2017 14:05

Simple example to check if a user leaves a browser window and show some information

Stephan Bogner stephanbogner