Playing around with parameters for a snapping effect
Last active
August 22, 2016 02:21
-
-
Save 1wheel/732f86cf0f4061fa37e1 to your computer and use it in GitHub Desktop.
elastic-snap
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| var width = 960, | |
| height = 500 | |
| var svg = d3.select('html') | |
| .append('svg') | |
| .attr({width: width, height: height}) | |
| .on('mousemove', updatePos) | |
| svg.append('rect') | |
| .attr({width: width, height: height, opacity: 0}) | |
| var circle = svg.append('circle') | |
| .attr('r', 10) | |
| .attr('cx', width/2) | |
| .attr('cy', height/2) | |
| .style({stroke: 'black', fill: 'lightgrey', 'stroke-width': 2}) | |
| var vel = 0 | |
| var cx = width/2 | |
| var mx = width | |
| var speedCap = 10 | |
| d3.timer(function(){ | |
| var dist = mx - cx | |
| var absDist = Math.abs(dist) | |
| vel += (mx - cx)/1000 | |
| vel = clamp(-absDist/speedCap, vel, absDist/speedCap) | |
| cx += vel | |
| circle.attr('cx', cx) | |
| }) | |
| function updatePos(){ | |
| var pos = d3.mouse(this) | |
| mx = pos[0] | |
| speedCap = pos[1]/height*40 | |
| } | |
| function clamp(a, b, c){ return Math.max(a, Math.min(b, c)) } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| svg{ | |
| overflow: visible; | |
| margin: 0px auto; | |
| display: block; | |
| } | |
| html{ | |
| width: 960px; | |
| height: 500px; | |
| } | |
| </style> | |
| <script src="/1wheel/raw/67b47524ed8ed829d021/d3-3.5.5.js"></script> | |
| <script src="/1wheel/raw/67b47524ed8ed829d021/lodash-3.8.0.js"></script> | |
| <script src='/1wheel/raw/1b6758978dc2d52d3a37/d3-jetpack.js'></script> | |
| <script src='/1wheel/raw/1b6758978dc2d52d3a37/d3-starterkit.js'></script> | |
| <script src='/1wheel/raw/5d32ecb8a54b42f53646/geometry.js'></script> | |
| <script src='elastic-ease.js'></script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment