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cantor2d.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>D3::Cantor 2D</title>
<link href="estilo.css" media="all" rel="stylesheet" type="text/css" />
</head>
<body>
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<div class="header">
<h1>D3::Cantor 2D</h1>
</div>
<div class="content">
<div id='c2d' class="vis"></div>
<script>
var WIDTH = 600,
ORDEN = 3,
MAXLEVEL = 3,
TRANS_TIME = 1000;
function randomInt(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
function binToNum(arr){
return parseInt(arr.join(""), 2);
}
function sem_aleat() {
return d3.range(ORDEN*ORDEN).map(function() {return Math.round(Math.random());});
};
function gen_frac(orden, semilla, nivelmax) {
var squares = [{x0:0, y0:0}];
for (var nivel=0; nivel <= nivelmax; nivel++) {
var n_squares = [];
for (var j=0; j < orden; j++) {
for (var i=0; i < orden; i++) {
if (semilla[orden*j + i]==1) {
for (var k=0; k < squares.length; k++) {
offset = Math.pow(orden, nivel)
n_squares.push({x0: squares[k].x0 + i*offset, y0: squares[k].y0 + j*offset});
};
};
};
};
squares = n_squares;
}
return squares;
};
// Cache
cache = {};
var lensemilla = ORDEN*ORDEN,
totsem = Math.pow(2, lensemilla),
bfrm = d3.format("0" + lensemilla + "b");
console.log(totsem)
for (var sem=0; sem < totsem; sem++) {
var strsem = bfrm(sem);
lsem = d3.range(lensemilla).map(function (i) { return parseInt(strsem[i]);})
cache[sem] = gen_frac(ORDEN, lsem, MAXLEVEL);
console.log(sem)
}
var esc = d3.scale.linear()
.domain([0, Math.pow(ORDEN, MAXLEVEL+1)])
.range([0, WIDTH]);
// Fractal
var svgfrac = d3.select('#c2d').append('svg')
.attr({
'width': WIDTH,
'height': WIDTH,
'class': "frac"
});
// Control
var svgctrl = d3.select('#c2d').append('svg')
.attr({
'width': WIDTH/3,
'height': WIDTH,
'class': "ctrl"
});
var semilla = sem_aleat();
// Control
function gen_ctrl(semilla, orden) {
var botones = [];
for (var j=0; j < orden; j++) {
for (var i=0; i < orden; i++) {
botones.push({x0:i, y0:j, st:semilla[orden*j + i]});
};
};
return botones;
};
var ctrl = svgctrl.selectAll('rect')
.data(gen_ctrl(semilla, ORDEN));
ctrl.enter()
.append('rect')
.attr("height", function(d,i) { return (WIDTH/3)/ORDEN;})
.attr("width", function(d,i) { return (WIDTH/3)/ORDEN;})
.attr("x", function(d,i) { return d.x0*(WIDTH/3)/ORDEN;})
.attr("y", function(d,i) { return d.y0*(WIDTH/3)/ORDEN;})
.attr('class', function (d, i) {return d.st? "on" : "off";})
.on("click", function (d, i) {
d.st = d.st? 0: 1 ;
semilla[i] = d.st;
d3.select(this).attr('class', d.st? "on" : "off");
update();})
;
//--------------------------------------------------------
function update() {
var cuadros;
var numsem = binToNum(semilla);
if (cache[numsem]) {
console.log("usando cache: " + numsem);
cuadros = cache[numsem];
}
else {
console.log("no usando cache: " + numsem);
cuadros = gen_frac(ORDEN, semilla, MAXLEVEL);
}
var esccol = d3.scale.linear()
.domain([0, cuadros.length])
.range([0, 360]);
// Textos
var frm = d3.format("0.2f");
var msgs = [ {t:"Orden", v:ORDEN},
{t:"Nivel", v:MAXLEVEL},
{t:"Semilla", v:"" + binToNum(semilla) + "/" + totsem},
{t:"Objetos", v:cuadros.length},
{t:"Densidad", v:frm(cuadros.length/Math.pow(Math.pow(ORDEN, MAXLEVEL+1),2))}
];
textos = svgctrl.selectAll('text')
.data(msgs);
textos
.enter()
.append('text');
textos
.text(function (d) {return d.t.toString() + ": " + d.v.toString();})
.attr('y', function (d, i) {return WIDTH/3 + 20*(i+1)})
.attr('x', 20)
;
// Fractal
// Data join
var frac = svgfrac.selectAll('rect.frac')
.data(cuadros);
// Enter
frac.enter()
.append('rect')
.attr('class', 'frac')
.attr("x", WIDTH)
.attr("y", WIDTH)
//.attr("opacity", 0)
.attr("width", 1e-6)
.attr("height", 1e-6)
// Enter + Update
frac.transition()
.style("fill", function(d,i) { return "hsl(" + esccol(i) + ",70%,50%)"; })
.attr("x", function(d,i) { return esc(d.x0);})
.attr("y", function(d,i) { return esc(d.y0);})
.attr("height", function(d,i) { return esc(1);})
.attr("width", function(d,i) { return esc(1);})
//.attr("opacity", 1)
//.ease("bounce")
.duration(TRANS_TIME)
.delay(function(d, i) { return (i / cuadros.length) * TRANS_TIME/4; });
;
// Exit
frac.exit()
.transition()
.attr("width", 1e-6)
.attr("height", 1e-6)
//.attr("opacity", 0)
.attr("x", WIDTH)
.attr("y", WIDTH)
//.ease("bounce")
.duration(TRANS_TIME)
.delay(function(d, i) { return (1 - (i / cuadros.length)) * TRANS_TIME/4; })
.remove()
;
};
update();
</script>
</content>
</body>
</html>