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November 13, 2015 05:49
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image fader
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
line { | |
stroke: #000; | |
stroke-width: 1.5px; | |
stroke-linecap: round; | |
} | |
</style> | |
<body> | |
<script src="//d3js.org/d3.v3.min.js"></script> | |
<script> | |
var width = 1050, | |
height = 1500, | |
delay = 2000, | |
duration = 80; | |
// TODO: Get username from command line. Have phantom script pass in name in the url | |
var USERNAME = 'enoex'; | |
if (window.location.hash) { | |
USERNAME = ('' + window.location.hash).replace('#', ''); | |
} else if (window.location.search && window.location.search.match(/\?username=(.*)$/)) { | |
USERNAME = window.location.search.match(/\?username=(.*)$/); | |
} | |
if (!USERNAME) { USERNAME = '_undefined'; } | |
USERNAME = 'enoex'; | |
var IMAGE_FADE_DURATION = 100; | |
var IMAGE_FADE_DELAY = 1000; | |
var INITIAL_PHANTOM_DELAY = 700; | |
var imageWrapper = d3.select("body").append("div") | |
.style({ | |
width: width, | |
height: height, | |
position: 'absolute', | |
top: 0, | |
left: 0 | |
}); | |
d3.json('https://gist.githubusercontent.com/enoex/b08fd043b84230ae0433/raw/c61d3197e1a38f6751f20113b923454941124f77/images.json', function(d){ | |
d = d[0]; | |
IMAGE_FADE_DELAY = 4000 / d[USERNAME].length; | |
// preload images | |
for(var i=0; i<d[USERNAME].length; i++){ | |
imageWrapper.append('img').attr({ | |
width: width + 'px', | |
height: height + 'px', | |
src: d[USERNAME][i] | |
}) | |
.style({ | |
width: width, | |
height: height, | |
'background-size': 'cover', | |
opacity: function(){ | |
return i === 0 ? 1 : 0; | |
}, | |
position: 'absolute' | |
}) | |
.transition() | |
.duration(IMAGE_FADE_DURATION) | |
.delay(i === 0 ? INITIAL_PHANTOM_DELAY : (i * IMAGE_FADE_DELAY) + INITIAL_PHANTOM_DELAY) | |
.style({ | |
opacity: 1 | |
}); | |
} | |
// Switch images. Fade in / out | |
}); | |
</script> |
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