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cdv9.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<style>
circle {
opacity: .2;
}
</style>
</head>
<body>
<script type="text/javascript">
var dataset,
workScale = d3.scale.linear()
.domain( [ 1, 15 ] )
.range( [ 3, 20 ] ),
yearScale = d3.scale.linear()
.domain( [ 1900, 1980 ] )
.range( [ 0, 800 ] );
d3.csv( "http://projects.kraeutli.com/cdv/data.php", function( data ) {
dataset = data;
for( var i = 0; i < dataset.length; i++ ) {
dataset[ i ].year_composed = +dataset[ i ].year_composed;
dataset[ i ].year_composed_to = +dataset[ i ].year_composed_to;
dataset[ i ].year_poet_born = +dataset[ i ].year_poet_born;
dataset[ i ].year_poet_died = +dataset[ i ].year_poet_died;
}
make();
} );
function make() {
var svg = d3.select( "body" ).append( "svg" )
.attr( "width", 800 )
.attr( "height", 600 );
var works = svg.append( "g" )
.attr( "id", "works" )
.attr( "transform", "translate( 0, 100 )" );
worksData = d3.nest()
.key( function( d ) {
return d.cycle_id;
} )
.entries( dataset );
for( var i = 0; i < worksData.length; i++ ) {
worksData[ i ].x = yearScale( d3.mean( worksData[ i ].values, function( v ) { return v.year_composed; } ) );
worksData[ i ].y = 0;
worksData[ i ].r = workScale( worksData[ i ].values.length );
}
arrange( worksData );
works.selectAll( "g.work" ).data( worksData )
.enter()
.append( "g" )
.attr( "class", "work" )
.attr( "transform", function( d ) {
return "translate( " + d.x + ", " + d.y + " )";
} )
.append( "circle" )
.attr( "r", function( d ) {
return d.r;
} );
}
function arrange( data ) {
function collide( node ) {
var r = node.r,
nx1 = node.x - r,
nx2 = node.x + r,
ny1 = node.y - r,
ny2 = node.y + r;
return function( quad, x1, y1, x2, y2 ) {
if ( quad.point && ( quad.point !== node ) ) {
var x = node.x - quad.point.x,
y = node.y - quad.point.y || 1,
l = Math.sqrt(x * x + y * y);
r = node.r + quad.point.r + 3;
if ( l < r ) {
l = ( l - r ) / l ;
node.y -= y *= l;
quad.point.y += y;
}
}
return x1 > nx2 || x2 < nx1 || y1 > ny2 || y2 < ny1;
};
}
var iterations = 25;
while ( --iterations ) {
var i = 0,
n = data.length,
q = d3.geom.quadtree()
.x( function( d ) { return d.x; } )
.y( function( d ) { return d.y; } )
( data );
while ( ++i < n ) q.visit( collide( data[ i ] ) ) ;
}
}
</script>
</body>
</html>