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January 15, 2016 17:59
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Nested data binding
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<meta http-equiv="x-ua-compatible" content="ie=edge"> | |
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" /> | |
</head> | |
<body> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.12/d3.min.js"></script> | |
<script> | |
var svg; | |
var c = { | |
w: window.innerWidth, | |
h: window.innerHeight | |
} | |
var state = { | |
palettes: [ | |
["000000","000000","2222aa","2244cc","4444ee","6666ee","eeeeee","aaaaaa","888888","444444","eeaa88","aa6644","ee0000","880000","eeaa00","ee8800"], | |
["000000","220022","440044","660066","880088","aa00aa","cc00cc","ee00ee","cc00ee","aa00cc","8800aa","660088","440066","220044","000022","ee0000"], | |
["000000","222200","444400","666600","888800","aaaa00","cccc00","eeee00","eecc00","ccaa00","aa8800","886600","664400","442200","220000","00ee00"], | |
["000000","002222","004444","006666","008888","00aaaa","00cccc","00eeee","00eecc","00ccaa","00aa88","008866","006644","004422","002200","0000ee"] | |
] | |
}; | |
window.addEventListener("load", e => { | |
svg = d3.select("body").append("svg") | |
.attr("width",c.w).attr("height",c.h) | |
.attr("viewBox",[0,0,c.w,c.h].join(" ")); | |
var palettes = svg.selectAll('.pal') | |
.data(state.palettes) | |
palettes | |
.enter() | |
.append('g') | |
.selectAll('.line') | |
.data(d=>d) | |
.enter() | |
.append("rect") | |
.attr({ | |
x:(d,i)=>25*i, | |
y:(d,i,a)=>25*a, | |
width:25, | |
height:25, | |
fill:d=>'#'+d, | |
}) | |
}) | |
</script> | |
</body> | |
</html> | |
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