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d3_lines.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>D3 Page Template</title>
<script type="text/javascript" src="js/vendor/d3.min.js"></script>
<style type="text/css">
.bar {
display: inline-block;
width: 20px;
background-color: teal;
margin-right: 5px;
}
#circles circle {
fill: olive;
stroke: orange;
}
#circles circle:hover {
fill: red;
stroke: blue;
}
.axis path, .axis line {
fill: none;
stroke: black;
shape-rendering: crispEdges;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 3px;
}
.line:hover {
stroke: red;
stroke-width: 3.5px;
}
</style>
</head>
<body>
<div id="datavis"></div>
<script type="text/javascript">
var dataset = [
[ 5, 60 ],
[ 10, 200 ],
[ 30, 100 ],
[ 82, 250 ],
[ 89, 100 ],
[ 100, 200 ],
[ 111, 50 ],
[ 150, 99 ],
];
var dataset2 = [
[ 35, 60 ],
[ 45, 12 ],
[ 55, 50 ],
[ 65, 70 ],
[ 75, 44 ],
];
var bigset = [ dataset, dataset2 ];
// Setup
var margin = { top: 20, right: 40, bottom: 20, left: 40 };
var w = 960 - margin.left - margin.right;
var h = 500 - margin.top - margin.bottom;
var svg = d3.select('#datavis')
.append('svg')
.attr('width', w + margin.left + margin.right)
.attr('height', h + margin.top + margin.bottom)
.append('g')
.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
var xscale = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) { return d[0]; })])
.range([0, w]);
var yscale = d3.scale.linear()
.domain([0, d3.max(dataset, function(d) { return d[1]; })])
.range([h, 0]);
// Behaviours
var dragstarted = function(d) {
d3.event.sourceEvent.stopPropagation();
d3.select(this).classed('dragging', true);
};
var dragged = function(d) {
//HACK: get scaling factors
var xfactor = 1.0/(xscale(2)-xscale(1));
var yfactor = 1.0/(yscale(2)-yscale(1));
var dx = xfactor * d3.event.dx, dy = yfactor * d3.event.dy;
for (var i=0; i<d.length; ++i) {
d[i][0] += dx;
d[i][1] += dy;
}
d3.select(this)
.attr('d', line);
};
var dragended = function(d) {
d3.select(this).classed('dragging', false);
};
var drag = d3.behavior.drag()
.origin(function(d) { return d; })
.on('dragstart', dragstarted)
.on('drag', dragged)
.on('dragend', dragended);
svg.append('clipPath')
.attr('id', 'chart-area')
.append('rect')
.attr('x', 0)
.attr('y', 0)
.attr('width', w)
.attr('height', h);
var line = d3.svg.line()
.x(function(d) { return xscale(d[0]); })
.y(function(d) { return yscale(d[1]); });
// Dealing with data
svg.append('g')
.selectAll('path')
.data(bigset)
.enter()
.append('path')
.attr('class', 'line')
.attr('d', line)
.call(drag);
// svg.append('path')
// .datum(dataset)
// .attr('class', 'line')
// .attr('d', line);
//
// svg.append('path')
// .datum(dataset2)
// .attr('class', 'line')
// .attr('d', line);
// svg.append('g')
// .attr('id', 'circles')
// .attr('clip-path', 'url(#chart-area)')
// .selectAll('circle')
// .data(dataset)
// .enter()
// .append('circle')
// .attr({
// cx: function(d) { return xscale(d[0]); },
// cy: function(d) { return yscale(d[1]); },
// r: 5
// });
var xaxis = d3.svg.axis()
.scale(xscale)
.orient('bottom')
.ticks(5);
var yaxis = d3.svg.axis()
.scale(yscale)
.orient('left')
.ticks(5);
svg.append('g')
.attr('class', 'axis')
.attr('transform', 'translate(0,'+h+')')
.call(xaxis);
svg.append('g')
.attr('class', 'axis')
.call(yaxis);
</script>
</body>
</html>