2012-06-26 21:35:00 +00:00
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nv.models.line = function() {
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//Default Settings
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var margin = {top: 0, right: 0, bottom: 0, left: 0},
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width = 960,
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height = 500,
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color = d3.scale.category20().range(), // array of colors to be used in order
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id = Math.floor(Math.random() * 10000), //Create semi-unique ID incase user doesn't select one
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getX = function(d) { return d.x }, // accessor to get the x value from a data point
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getY = function(d) { return d.y }, // accessor to get the y value from a data point
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2012-07-10 19:27:20 +00:00
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clipEdge = false, // if true, masks lines within x and y scale
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interpolate = "linear"; // controls the line interpolation
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2012-06-26 21:35:00 +00:00
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var scatter = nv.models.scatter()
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.id(id)
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.size(16) // default size
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.sizeDomain([16,256]), //set to speed up calculation, needs to be unset if there is a cstom size accessor
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//x = scatter.xScale(),
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//y = scatter.yScale(),
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x, y,
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x0, y0, timeoutID;
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function chart(selection) {
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selection.each(function(data) {
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var availableWidth = width - margin.left - margin.right,
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availableHeight = height - margin.top - margin.bottom;
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//get the scales inscase scatter scale was set manually
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x = x || scatter.xScale();
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y = y || scatter.yScale();
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//store old scales if they exist
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x0 = x0 || x;
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y0 = y0 || y;
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var wrap = d3.select(this).selectAll('g.wrap.line').data([data]);
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var wrapEnter = wrap.enter().append('g').attr('class', 'wrap nvd3 line');
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var defsEnter = wrapEnter.append('defs');
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var gEnter = wrapEnter.append('g');
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var g = wrap.select('g')
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wrapEnter.append('g').attr('class', 'scatterWrap');
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var scatterWrap = wrap.select('.scatterWrap').datum(data);
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gEnter.append('g').attr('class', 'groups');
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scatter
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.width(availableWidth)
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.height(availableHeight)
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d3.transition(scatterWrap).call(scatter);
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wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
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defsEnter.append('clipPath')
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.attr('id', 'edge-clip-' + id)
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.append('rect');
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wrap.select('#edge-clip-' + id + ' rect')
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.attr('width', availableWidth)
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.attr('height', availableHeight);
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g .attr('clip-path', clipEdge ? 'url(#edge-clip-' + id + ')' : '');
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scatterWrap
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.attr('clip-path', clipEdge ? 'url(#edge-clip-' + id + ')' : '');
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var groups = wrap.select('.groups').selectAll('.group')
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.data(function(d) { return d }, function(d) { return d.key });
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groups.enter().append('g')
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.style('stroke-opacity', 1e-6)
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.style('fill-opacity', 1e-6);
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d3.transition(groups.exit())
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.style('stroke-opacity', 1e-6)
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.style('fill-opacity', 1e-6)
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.remove();
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groups
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.attr('class', function(d,i) { return 'group series-' + i })
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.classed('hover', function(d) { return d.hover })
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.style('fill', function(d,i){ return color[i % color.length] })
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.style('stroke', function(d,i){ return color[i % color.length] })
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d3.transition(groups)
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.style('stroke-opacity', 1)
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.style('fill-opacity', .5)
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var paths = groups.selectAll('path')
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.data(function(d, i) { return [d.values] });
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paths.enter().append('path')
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.attr('class', 'line')
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.attr('d', d3.svg.line()
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2012-07-12 19:40:16 +00:00
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.interpolate(interpolate)
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2012-06-26 21:35:00 +00:00
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.x(function(d,i) { return x0(getX(d,i)) })
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.y(function(d,i) { return y0(getY(d,i)) })
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);
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d3.transition(groups.exit().selectAll('path'))
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.attr('d', d3.svg.line()
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2012-07-12 19:40:16 +00:00
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.interpolate(interpolate)
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2012-06-26 21:35:00 +00:00
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.x(function(d,i) { return x(getX(d,i)) })
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.y(function(d,i) { return y(getY(d,i)) })
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)
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.remove(); // redundant? line is already being removed
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d3.transition(paths)
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.attr('d', d3.svg.line()
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2012-07-12 19:40:16 +00:00
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.interpolate(interpolate)
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2012-06-26 21:35:00 +00:00
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.x(function(d,i) { return x(getX(d,i)) })
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.y(function(d,i) { return y(getY(d,i)) })
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);
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//store old scales for use in transitions on update, to animate from old to new positions
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x0 = x.copy();
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y0 = y.copy();
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});
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return chart;
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}
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chart.dispatch = scatter.dispatch;
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d3.rebind(chart, scatter, 'interactive', 'size', 'xScale', 'yScale', 'zScale', 'xDomain', 'yDomain', 'sizeDomain', 'forceX', 'forceY', 'forceSize', 'clipVoronoi', 'clipRadius');
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chart.margin = function(_) {
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if (!arguments.length) return margin;
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margin = _;
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return chart;
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};
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chart.width = function(_) {
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if (!arguments.length) return width;
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width = _;
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return chart;
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};
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chart.height = function(_) {
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if (!arguments.length) return height;
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height = _;
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return chart;
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};
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chart.x = function(_) {
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if (!arguments.length) return getX;
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getX = _;
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scatter.x(_);
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return chart;
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};
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chart.y = function(_) {
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if (!arguments.length) return getY;
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getY = _;
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scatter.y(_);
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return chart;
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};
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chart.clipEdge = function(_) {
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if (!arguments.length) return clipEdge;
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clipEdge = _;
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return chart;
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};
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chart.color = function(_) {
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if (!arguments.length) return color;
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color = _;
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scatter.color(_);
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return chart;
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};
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chart.id = function(_) {
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if (!arguments.length) return id;
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id = _;
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return chart;
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};
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2012-07-12 19:40:16 +00:00
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2012-07-10 19:27:20 +00:00
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chart.interpolate = function(_) {
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2012-07-12 19:40:16 +00:00
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if (!arguments.length) return interpolate;
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interpolate = _;
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return chart;
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};
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chart.defined = function(_) {
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if (!arguments.length) return defined;
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defined = _;
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return chart;
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2012-07-10 19:27:20 +00:00
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};
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2012-06-26 21:35:00 +00:00
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return chart;
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}
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