Created
December 29, 2011 19:54
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D3.js Line Chart Test
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| (function() { | |
| $(function() { | |
| var data, h, max, pb, pl, pr, pt, ticks, version, vis, w, x, y, _ref; | |
| version = Number(document.location.hash.replace('#', '')); | |
| data = [3, 7, 9, 1, 4, 6, 8, 2, 5]; | |
| data2 = [1, 4, 7, 0, 2, 2, 4, 1, 3]; | |
| _ref = [20, 20, 20, 20], pt = _ref[0], pl = _ref[1], pr = _ref[2], pb = _ref[3]; | |
| w = 800 - (pl + pr); | |
| h = 300 - (pt + pb); | |
| max = d3.max(data); | |
| x = d3.scale.linear().domain([0, data.length - 1]).range([0, w]); | |
| y = d3.scale.linear().domain([0, max]).range([h, 0]); | |
| vis = d3.select('#chart').style('margin', '20px auto').style('width', "" + w + "px").append('svg:svg').attr('width', w + (pl + pr)).attr('height', h + pt + pb).attr('class', 'viz').append('svg:g').attr('transform', "translate(" + pl + "," + pt + ")"); | |
| vis.selectAll('path.line').data([data, data2]).enter().append("svg:path").attr("d", d3.svg.line().x(function(d, i) { | |
| return x(i); | |
| }).y(y)); | |
| ticks = vis.selectAll('.ticky').data(y.ticks(7)).enter().append('svg:g').attr('transform', function(d) { | |
| return "translate(0, " + (y(d)) + ")"; | |
| }).attr('class', 'ticky'); | |
| ticks.append('svg:text').text(function(d) { | |
| return d; | |
| }).attr('text-anchor', 'end').attr('dy', 2).attr('dx', -4); | |
| ticks = vis.selectAll('.tickx').data(x.ticks(data.length)).enter().append('svg:g').attr('transform', function(d, i) { | |
| return "translate(" + (x(i)) + ", 0)"; | |
| }).attr('class', 'tickx'); | |
| ticks.append('svg:line').attr('y1', h).attr('y2', 0).attr('x1', 0).attr('x2', 0); | |
| ticks.append('svg:text').text(function(d, i) { | |
| return i; | |
| }).attr('y', h).attr('dy', 15).attr('dx', -2); | |
| vis.selectAll('.point').data(data).enter() | |
| .append("svg:circle").attr("class", 'point') | |
| .attr('r', '3') | |
| .attr("cx", function(d, i) { return x(i); }) | |
| .attr("cy", function(d) { return y(d); }) | |
| .on('mouseover', function() { return d3.select(this).attr('r', 5); }) | |
| .on('mouseout', function() { return d3.select(this).attr('r', 3); }) | |
| .on('click', function(d, i) { return console.log(d, i); }); | |
| }); | |
| }).call(this); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Line Chart</title> | |
| <link type="text/css" rel="stylesheet" href="line.css"/> | |
| <script type="text/javascript" src="../../d3.js"></script> | |
| <script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.min.js"></script> | |
| </head> | |
| <body> | |
| <style> | |
| text { | |
| fill: #ccc; | |
| } | |
| path { | |
| stroke-width: 2px; | |
| stroke: #fcaf30; | |
| } | |
| .tickx line, | |
| .ticky line { | |
| stroke-width: 1px; | |
| stroke: #b2b2b2; | |
| stroke-opacity: 0.4; | |
| shape-rendering: crispedges; | |
| } | |
| .tickx text, | |
| .ticky text { | |
| fill: #ccc; | |
| font-size: 10px; | |
| } | |
| .point { | |
| fill: #fcaf30; | |
| } | |
| </style> | |
| <div id="chart"><script type="text/javascript" src="line.js"></script></div> | |
| </body> | |
| </html> |
Thanks! It turned out to be the default fill of the path, fill:none did the trick! One more question, if you don't mind. Line 35 where you are setting the points, how can I add data2 to that as well, so that points are applied to the second line? An even better solution would be a way to combine the data and data2 variables. I tried doing something like:
data = [
{data1 values},
{data2 values}
];
But that didn't work...
See my fork. It needed a little bit of refactoring because paths can't have nested elements. By adding paths to <g> elements, you can easily add as many lines and points as you want and each g element represents it's own little chunk of data.
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You should move data2 to the array on line 16. No need to duplicate that code. Also, I'm not seeing black fill areas, but I remember adding something like that to a similar chart I was working on. rect's and paths might have a default fill color of black that you can remove with fill: none. Other than that, can you post a screenshot?