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tophtucker/index.html

Last active May 17, 2016 17:00
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readme.md
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index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
margin: 0;
}
.gallery {
overflow-x: scroll;
}
.gallery-inner {
width: 300%;
height: 100%;
}
.gallery-inner img {
width: 100%;
}
</style>
<body>
<div class="gallery">
<div class="gallery-inner">
<img src="panorama.jpg">
</div>
</div>
</body>
<script src="http://d3js.org/d3.v4.0.0-alpha.35.min.js" charset="utf-8"></script>
<script>
var gallery = document.querySelector('.gallery')
// scale from mouse position as fraction of gallery width
// to how many pixels to scroll per render frame
var scrollScale = d3.scaleLinear()
.domain([0,.2,.8,1])
.range([-100,0,0,100])
// default to stationary
var mousePosition = .5
// on mousemove, save mouse position fraction
d3.select(gallery).on('mousemove', function() {
mousePosition = d3.mouse(this)[0] / this.offsetWidth
})
// scroll according to last known mouse position
d3.timer(function() {
gallery.scrollLeft += scrollScale(mousePosition)
})
</script>
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