[ Launch: fisheye ] 6473448 by enjalot
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fisheye
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{"description":"fisheye","endpoint":"","display":"svg","public":true,"require":[{"name":"fisheye","url":"https://raw.github.com/d3/d3-plugins/master/fisheye/fisheye.js"}],"tab":"edit","display_percent":0.6066666666666666,"play":true,"loop":true,"restart":false,"autoinit":true,"pause":true,"loop_type":"period","bv":false,"nclones":15,"clone_opacity":0.4,"duration":3000,"ease":"linear","dt":0.01,"fileconfigs":{"config.json":{"default":true,"vim":false,"emacs":false,"fontSize":12},"eye.svg":{"default":true,"vim":false,"emacs":false,"fontSize":12},"fish.svg":{"default":true,"vim":false,"emacs":false,"fontSize":12},"inlet.js":{"default":true,"vim":false,"emacs":false,"fontSize":12},"_.md":{"default":true,"vim":false,"emacs":false,"fontSize":12},"fisheye.js":{"default":true,"vim":false,"emacs":false,"fontSize":12}},"fullscreen":false,"thumbnail":"http://i.imgur.com/9nlPXUd.gif","ajax-caching":true} |
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// https://raw.githubusercontent.com/d3/d3-plugins/master/fisheye/fisheye.js | |
(function() { | |
d3.fisheye = { | |
scale: function(scaleType) { | |
return d3_fisheye_scale(scaleType(), 3, 0); | |
}, | |
circular: function() { | |
var radius = 200, | |
distortion = 2, | |
k0, | |
k1, | |
focus = [0, 0]; | |
function fisheye(d) { | |
var dx = d.x - focus[0], | |
dy = d.y - focus[1], | |
dd = Math.sqrt(dx * dx + dy * dy); | |
if (!dd || dd >= radius) return {x: d.x, y: d.y, z: dd >= radius ? 1 : 10}; | |
var k = k0 * (1 - Math.exp(-dd * k1)) / dd * .75 + .25; | |
return {x: focus[0] + dx * k, y: focus[1] + dy * k, z: Math.min(k, 10)}; | |
} | |
function rescale() { | |
k0 = Math.exp(distortion); | |
k0 = k0 / (k0 - 1) * radius; | |
k1 = distortion / radius; | |
return fisheye; | |
} | |
fisheye.radius = function(_) { | |
if (!arguments.length) return radius; | |
radius = +_; | |
return rescale(); | |
}; | |
fisheye.distortion = function(_) { | |
if (!arguments.length) return distortion; | |
distortion = +_; | |
return rescale(); | |
}; | |
fisheye.focus = function(_) { | |
if (!arguments.length) return focus; | |
focus = _; | |
return fisheye; | |
}; | |
return rescale(); | |
} | |
}; | |
function d3_fisheye_scale(scale, d, a) { | |
function fisheye(_) { | |
var x = scale(_), | |
left = x < a, | |
range = d3.extent(scale.range()), | |
min = range[0], | |
max = range[1], | |
m = left ? a - min : max - a; | |
if (m == 0) m = max - min; | |
return (left ? -1 : 1) * m * (d + 1) / (d + (m / Math.abs(x - a))) + a; | |
} | |
fisheye.distortion = function(_) { | |
if (!arguments.length) return d; | |
d = +_; | |
return fisheye; | |
}; | |
fisheye.focus = function(_) { | |
if (!arguments.length) return a; | |
a = +_; | |
return fisheye; | |
}; | |
fisheye.copy = function() { | |
return d3_fisheye_scale(scale.copy(), d, a); | |
}; | |
fisheye.nice = scale.nice; | |
fisheye.ticks = scale.ticks; | |
fisheye.tickFormat = scale.tickFormat; | |
return d3.rebind(fisheye, scale, "domain", "range"); | |
} | |
})(); |
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var fishD = d3.select("#fish").attr("d"); | |
d3.select("#fish").style("display", "none"); | |
var eye = d3.select("#eye").style("display", "none"); | |
var fisheye = d3.fisheye.circular() | |
.radius(tributary.anim(573, 300)) | |
.distortion(tributary.anim(2, 5.94985)); | |
tributary.loop_type = "pingpong"; | |
tributary.duration = 2000; | |
var data = _.map(d3.range(100), function(d) { | |
return { | |
i: d, | |
x: d % 10 * tributary.anim(84, 60), | |
y: parseInt(d/10) * 77 | |
} | |
}); | |
var svg = d3.select("svg"); | |
var fishies = svg.selectAll("g.fish") | |
.data(data) | |
.enter() | |
.append("g") | |
.classed("fish", true); | |
fishies.attr("transform", function(d) { | |
return "translate(" + [d.x, d.y] + ")"; | |
}) | |
fishies.append("path") | |
.attr("d", fishD) | |
.style({ | |
fill: "#8709AF", | |
"fill-opacity": 0.4, | |
stroke: "#125EBE", | |
"stroke-opacity": 0.8, | |
"stroke-width": 3 | |
}); | |
fisheye.focus([tributary.sw/2-50, tributary.sh/2 - 50]); | |
fishies.attr("transform", function(d) { | |
var fe = fisheye(d); | |
return "translate(" + [fe.x, fe.y] + ")" | |
+ "scale(" + fe.z + ")"; | |
}) | |
svg.on("mousemove", function() { | |
var mouse = d3.mouse(this); | |
eye.attr("transform", "translate(" + [mouse[0] - 50, mouse[1] - 30] + ")") | |
fisheye.focus(mouse); | |
fishies.attr("transform", function(d) { | |
var fe = fisheye(d); //{x: ..., y: ... | |
return "translate(" + [fe.x, fe.y] + ")" | |
+ "scale(" + fe.z + ")"; | |
}) | |
}) | |
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