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xy-chart.js
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// requires:
// - jquery-extend.js (or jQuery, to get jQuery.extend)
// - d3.js
// adding requireJS pattern (amdWeb.js):
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(['d3', 'jquery'], factory);
} else {
// Browser globals
root.xyChart = factory(root.d3, root.jQuery);
}
}(this, function (d3, jQuery) {
//define(["d3", "jquery"], function(d3, jQuery) {
if (!d3.hasOwnProperty("id")) {
d3.id = (function(){var a = 0; return function(){return a++}})();
}
function xyChart(options_override) {
var debug=false;
var options_defaults = {
margin: {top: 10, right: 10, bottom: 75, left: 100},
autoscale: true,
show_points: true,
show_line: true,
show_errorbars: false,
numberOfTicks: 4,
position_cursor: true,
vcursor: false,
hcursor: false,
xlabel: "x-axis",
ylabel: "y-axis",
zlabel: "z-axis",
errorbar_width: 12,
xtransform: "linear",
ytransform: "linear",
legend: {show: false, left: 65},
axes: {
xaxis: {label: "x-axis"},
yaxis: {label: "y-axis"}
},
point_size: 2.5,
series: new Array()
}
var options = jQuery.extend(true, {}, options_defaults); // copy
jQuery.extend(true, options, options_override); // process any overrides from creation;
var id = d3.id();
var interactors = [];
this.options = options;
var max_y = (options.max_y == null) ? -Infinity : options.max_y;
var min_y = (options.min_y == null) ? Infinity : options.min_y;
var max_x = (options.max_x == null) ? -Infinity : options.max_x;
var min_x = (options.min_x == null) ? Infinity : options.min_x;
var zoomRect = false;
var zoomScroll = false;
var zoomed = false; // zoomed state.
var labels = options.series.map(function(d, i) { return d.label || i });
var x = d3.scale[options.xtransform]();
var y = d3.scale[options.ytransform]();
var xAxis = d3.svg.axis(),
yAxis = d3.svg.axis(),
xAxisGrid = d3.svg.axis(),
yAxisGrid = d3.svg.axis();
var zoom = d3.behavior.zoom().x(x).y(y).on("zoom", function() { zoomed = true; update() });
var base_zoom_offset = 0.05; // zoom out 5% from min and max by default;
var resetzoom = function() {
var xoffset = (x.range()[1] - x.range()[0]) * base_zoom_offset,
yoffset = (y.range()[1] + y.range()[0]) * base_zoom_offset;
zoom.x(x.domain([min_x, max_x]))
.y(y.domain([min_y, max_y]))
.scale(1.0 - (2.0 * base_zoom_offset)).translate([xoffset, yoffset]);
zoomed = false;
update();
//.call(this);
}
var source_data;
function do_autoscale() {
var extents;
var merged_data = d3.merge(source_data);
if (options.show_errorbars) {
max_y = d3.extent(merged_data, function(d) {
var yy = (d[2] && d[2].yupper != undefined) ? d[2].yupper : d[1];
return (isFinite(y(yy))) ? yy : null;
})[1];
min_y = d3.extent(merged_data, function(d) {
var yy = (d[2] && d[2].ylower != undefined) ? d[2].ylower : d[1];
return (isFinite(y(yy))) ? yy : null;
})[0];
max_x = d3.extent(merged_data, function(d) {
var xx = (d[2] && d[2].xupper != undefined) ? d[2].xupper : d[0];
return (isFinite(x(xx))) ? xx : null;
})[1];
min_x = d3.extent(merged_data, function(d) {
var xx = (d[2] && d[2].xlower != undefined) ? d[2].xlower : d[0];
return (isFinite(x(xx))) ? xx : null;
})[0];
} else {
extents = d3.extent(merged_data, function(d) { return isFinite(y(d[1]))? d[1] : null });
min_y = extents[0];
max_y = extents[1];
extents = d3.extent(merged_data, function(d) { return isFinite(x(d[0]))? d[0] : null });
min_x = extents[0];
max_x = extents[1];
}
/*
var dx = (x(max_x) - x(min_x)) || 1.0,
dy = (y(max_y) - y(min_y)) || 1.0;
min_x = x.invert(x(min_x) - (dx * base_zoom_offset));
max_x = x.invert(x(max_x) + (dx * base_zoom_offset));
min_y = y.invert(y(min_y) - (dy * base_zoom_offset));
max_y = y.invert(y(max_y) + (dy * base_zoom_offset));
*/
var xav= max_x - min_x,
yrange = max_y - min_y;
if (max_x == min_x) {
max_x += (max_x * 0.1) || 0.1;
min_x -= (min_x * 0.1) || 0.1;
}
if (max_y == min_y) {
max_y += (max_y * 0.1) || 0.1;
min_y -= (min_y * 0.1) || 0.1;
}
return {min_x: min_x, max_x: max_x, min_y: min_y, max_y: max_y}
}
this.do_autoscale = do_autoscale;
// make it possible to show single data points:
if (min_x == max_x) {
min_x -= 1;
max_x += 1;
}
if (min_y == max_y) {
min_y -= 1;
max_y += 1;
}
var old_colors = [
'steelblue',
'green',
'red',
'purple'
]
var colors = [
"#4bb2c5",
"#EAA228",
"#c5b47f",
"#579575",
"#839557",
"#958c12",
"#953579",
"#4b5de4",
"#d8b83f",
"#ff5800",
"#0085cc",
"#c747a3",
"#cddf54",
"#FBD178",
"#26B4E3",
"#bd70c7"
]
function chart(selection) {
selection.each(function(data) {
var outercontainer = d3.select(this),
innerwidth = outercontainer.node().clientWidth,
innerheight = outercontainer.node().clientHeight,
width = innerwidth - options.margin.right - options.margin.left,
height = innerheight - options.margin.top - options.margin.bottom;
chart.outercontainer = outercontainer;
source_data = data;
//chart.update = function() { outercontainer.transition().call(chart); };
chart.update = update;
if (options.autoscale) {
do_autoscale();
}
//************************************************************
// Create Margins and Axis and hook our zoom function
//************************************************************
x
.domain([min_x, max_x])
.range([0, width]);
y
.domain([min_y, max_y])
.range([height, 0]);
xAxisGrid
.scale(x)
.tickSize(-height)
.ticks(options.numberOfTicks)
.tickPadding(10)
.tickSubdivide(true)
.orient("bottom")
.tickFormat("");
yAxisGrid
.scale(y)
.tickPadding(10)
.ticks(options.numberOfTicks)
.tickSize(-width)
.tickSubdivide(true)
.orient("left")
.tickFormat("");
xAxis
.scale(x)
.ticks(options.numberOfTicks)
.tickPadding(10)
.tickSubdivide(true)
.orient("bottom");
yAxis
.scale(y)
.ticks(options.numberOfTicks)
.tickPadding(10)
.tickSubdivide(true)
.orient("left");
zoom.x(x).y(y);
//************************************************************
// Generate our SVG object
//************************************************************
var svg = outercontainer.append("svg")
.attr("class", "mainplot")
//.call(zoom) // call this from zoomScroll setter
.on("dblclick.zoom", null)
//.on("dblclick.resetzoom", null)
.on("dblclick.resetzoom", resetzoom)
var axes = svg.append("g")
.attr("class", "axes")
.attr("transform", "translate(" + options.margin.left + "," + options.margin.top + ")");
var mainview = svg.append("g")
.attr("class", "mainview")
.attr("transform", "translate(" + options.margin.left + "," + options.margin.top + ")");
var drag = d3.behavior.drag();
svg.call(drag);
chart.drag = drag;
drag
.on("dragstart.zoomRect", function() {
if (!zoomRect) return;
var e = mainview.node(),
origin = d3.mouse(e),
rect = mainview.append("rect").attr("class", "zoom");
d3.select("body").classed("noselect", true);
origin[0] = Math.max(0, Math.min(width, origin[0]));
origin[1] = Math.max(0, Math.min(height, origin[1]));
//d3.select(window)
drag
.on("drag.zoomRect", function() {
var m = d3.mouse(e);
m[0] = Math.max(0, Math.min(width, m[0]));
m[1] = Math.max(0, Math.min(height, m[1]));
rect.attr("x", Math.min(origin[0], m[0]))
.attr("y", Math.min(origin[1], m[1]))
.attr("width", Math.abs(m[0] - origin[0]))
.attr("height", Math.abs(m[1] - origin[1]));
})
.on("dragend.zoomRect", function() {
//d3.select(window).on("mousemove.zoomRect", null).on("mouseup.zoomRect", null);
drag.on("drag.zoomRect", null).on("dragend.zoomRect", null);
d3.select("body").classed("noselect", false);
var m = d3.mouse(e);
m[0] = Math.max(0, Math.min(width, m[0]));
m[1] = Math.max(0, Math.min(height, m[1]));
if (m[0] !== origin[0] && m[1] !== origin[1]) {
zoom.x(x.domain([origin[0], m[0]].map(x.invert).sort(function(a,b) {return a-b})))
.y(y.domain([origin[1], m[1]].map(y.invert).sort(function(a,b) {return a-b})));
}
else {
// reset zoom on single click? No!
/*
zoom.scale(1);
zoom.translate([0,0]);
zoom.x(x.domain([min_x, max_x]))
.y(y.domain([min_y, max_y]));
*/
}
rect.remove();
zoomed = true;
update();
}, true);
d3.event.sourceEvent.stopPropagation();
});
mainview.append("g")
.attr("class", "legend")
.attr("transform", "translate(" + (width-65) + ",25)");
//.call(zoom);
axes.append("g")
.attr("class", "x axis")
.append("text")
.attr("class", "x axis-label")
.attr("x", width/2.0)
.attr("text-anchor", "middle")
.attr("y", options.margin.bottom - 15)
axes.append("g")
.attr("class", "y axis")
.append("text")
.attr("class", "y axis-label")
.attr("text-anchor", "middle")
.attr("transform", "rotate(-90)")
.attr("y", -options.margin.left + 15 )
.attr("x", -height/2)
mainview.append("defs").append("clipPath")
.attr("id", "d3clip_" + id.toFixed()) // local def
.append("rect")
//.attr("x", 0) // x(min_x)) // options.margin.left)
//.attr("y", 0)
.attr("width", width)
.attr("height", height);
mainview.attr("clip-path", "url(#d3clip_" + id.toFixed() + ")");
axes.append("g")
.attr("class", "x grid");
axes.append("g")
.attr("class", "y grid");
axes.select(".x.axis").call(xAxis);
axes.select(".y.axis").call(yAxis);
axes.select(".x.grid").call(xAxisGrid);
axes.select(".y.grid").call(yAxisGrid);
axes.select(".x.axis-label").text(((options.axes || {}).xaxis || {}).label || "x-axis");
axes.select(".y.axis-label").text(((options.axes || {}).yaxis || {}).label || "y-axis");
svg.attr("width", width + options.margin.left + options.margin.right)
.attr("height", height + options.margin.top + options.margin.bottom);
axes.selectAll("g.x")
.attr("transform", "translate(0," + height + ")");
chart.svg = svg;
chart.g = svg.selectAll("g.mainview");
resetzoom(); // set to 10% zoom out.
chart.draw_lines(data);
chart.draw_points(data);
chart.draw_errorbars(data);
chart.draw_legend(data);
//************************************************************
// Position cursor (shows position of mouse in data coords)
//************************************************************
if (options.position_cursor) {
var position_cursor = mainview.selectAll(".position-cursor")
.data([0])
position_cursor
.enter().append("text")
.attr("class", "position-cursor")
.attr("x", width - 10)
.attr("y", height - 10)
.style("text-anchor", "end");
var follow = function (){
var mouse = d3.mouse(mainview.node());
position_cursor.text(
x.invert(mouse[0]).toPrecision(5) +
", " +
y.invert(mouse[1]).toPrecision(5));
}
svg
.on("mousemove.position_cursor", null)
.on("mouseover.position_cursor", null)
.on("mousemove.position_cursor", follow)
.on("mouseover.position_cursor", follow);
}
//************************************************************
// Vertical cursor (or horizontal)
//************************************************************
if (options.vcursor) {
var vertical = svg
.append("path")
.attr("class", "vertical-cursor")
.attr("d", "M 0 0 L 0 " + height)
.attr("stroke", "black")
.attr("stroke-width", 2);
var follow_x = function (){
var mouse = d3.mouse(mainview.node());
var mousex = mouse[0];
vertical.attr("d", "M " + mousex.toFixed(1) + " 0 L " + mousex.toFixed(1) + " " + height);
}
svg
.on("mousemove.vcursor", follow_x)
.on("mouseover.vcursor", follow_x);
}
if (options.hcursor) {
var horizontal = svg
.append("path")
.attr("class", "horizontal-cursor")
.attr("d", "M 0 0 L " + width + " 0")
.attr("stroke", "black")
.attr("stroke-width", 2);
var follow_y = function (){
var mouse = d3.mouse(mainview.node());
var mousey = mouse[1];
horizontal.attr("d", "M 0 " + mousey.toFixed(1) + " L " + width + " " + mousey.toFixed(1));
}
svg
.on("mousemove.hcursor", follow_y)
.on("mouseover.hcursor", follow_y);
}
});
}
//************************************************************
// Create D3 legend
//************************************************************
chart.draw_legend = function(data) {
var el = chart.svg.select("g.legend");
el.selectAll('g').data(data)
.enter()
.append('g')
.each(function(d, i) {
var g = d3.select(this);
g.append("rect")
.attr("x", -options.legend.left)
.attr("y", i*25 + 15)
.attr("width", 10)
.attr("height", 10)
.style("fill", get_series_color(null, i))
.on("mouseover", function() {
chart.svg.selectAll('path.line').classed('highlight', function(d,ii) {return ii == i});
})
.on("mouseout", function() {
chart.svg.selectAll('path.line').classed('highlight', false);
});
g.append("text")
.attr("x", 15-options.legend.left)
.attr("y", i * 25 + 25)
.attr("height",30)
.attr("width",100)
.style("text-anchor", "start")
.style("fill", get_series_color(null, i))
.on("mouseover", function() {
chart.svg.selectAll('path.line').classed('highlight', function(d,ii) {return ii == i});
})
.on("mouseout", function() {
chart.svg.selectAll('path.line').classed('highlight', false);
});
});
el.selectAll("text")
.each(function(d, i) {
d3.select(this).text((options.series[i] && options.series[i].label != null) ? options.series[i].label : i+1)
});
}
var line = d3.svg.line()
.defined(function(d) { return (d && d[1] != null && isFinite(x(d[0])) && isFinite(y(d[1]))); })
.x(function(d) { return x(d[0]); })
.y(function(d) { return y(d[1]); });
//************************************************************
// Create D3 line object and draw data on our SVG object
//************************************************************
chart.draw_lines = function(data) {
chart.g.selectAll('.line')
.data(filterShowOption('show_line', data))
.enter()
.append("path")
.attr("class", "line")
.attr('stroke', get_series_color)
chart.g.selectAll('path.line')
.attr("d", line);
}
//************************************************************
// Draw points on SVG object based on the data given
//************************************************************
chart.draw_points = function(data) {
chart.g.selectAll("g.series")
.data(filterShowOption('show_points', data))
.enter().append("g")
.attr("class", "series")
.style("fill", get_series_color);
var update_sel = chart.g.selectAll("g.series").selectAll(".dot")
.data(function(d) { return d; });
update_sel.enter().append("circle")
//.filter(function(d) { return (d && d[1] != null && isFinite(x(d[0])) && isFinite(y(d[1]))); })
.attr("class", "dot")
.attr("clip-path", "url(#d3clip_" + id.toFixed() + ")")
.attr("r", options.point_size)
update_sel.exit().remove();
chart.g.selectAll("g.series .dot")
.each(function(d,i) {
var xp = x(d[0]),
unplottable_xp = (!isFinite(xp) || d[0] == null || xp == null)
yp = y(d[1]),
unplottable_yp = (!isFinite(yp) || d[1] == null || yp == null);
d3.select(this)
.attr("cx", unplottable_xp ? null : xp) // isFinite(xp)?function(d) { var xp = x(d[0]); return isFinite(xp) ? xp : null })
.attr("cy", unplottable_yp ? null : yp) //function(d) { var yp = y(d[1]); return isFinite(yp) ? yp : null });
.style("visibility", (unplottable_xp || unplottable_yp) ? "hidden" : "visible");
});
}
//************************************************************
// Draw error bars on SVG object based on the data given
//************************************************************
chart.draw_errorbars = function(data) {
chart.g.selectAll(".errorbars")
.data(filterShowOption('show_errorbars', data))
.enter().append("g")
.classed("errorbars", true)
.style("stroke", get_series_color)
.style("stroke-width", "1.5px")
var update_sel = chart.g.selectAll(".errorbars").selectAll(".errorbar")
.data(function(d,i) { return d; })
update_sel.enter().append("path")
.classed("errorbar", true)
update_sel.exit().remove();
chart.g.selectAll(".errorbars").selectAll("path.errorbar")
.attr("d", errorbar_generator);
}
//************************************************************
// Zoom specific updates
//************************************************************
function update() {
var svg = chart.svg;
svg.select(".x.axis").call(xAxis);
svg.select(".y.axis").call(yAxis);
svg.select(".x.axis .x.axis-label").text(options.axes.xaxis.label);
svg.select(".y.axis .y.axis-label").text(options.axes.yaxis.label);
svg.select(".x.grid").call(xAxisGrid);
svg.select(".y.grid").call(yAxisGrid);
svg.selectAll("rect.zoom").remove();
chart.draw_lines(source_data);
chart.draw_points(source_data);
chart.draw_errorbars(source_data);
chart.draw_legend(source_data);
chart.interactors().forEach(function(d,i) { if (d.update) {d.update();}});
}
function refresh() {
chart.svg.select(".x.axis").call(xAxis);
chart.svg.select(".y.axis").call(yAxis);
}
function filterShowOption(optname, data) {
return data.map(function(d,i) {
var localopt = (((options || {}).series || [])[i] || {});
if (localopt[optname] == false || (localopt[optname] === undefined && !options[optname])) {
return []
} else {
return d;
}
})
}
function get_series_color(_, i) {
// use color specified in options.series, if it exists
// otherwise grab from the default colors list:
return (options.series[i] || {}).color || colors[i % colors.length];
}
function errorbar_generator(d) {
var errorbar_width = options.errorbar_width;
var pathstring = "";
if (!d[2]) {return pathstring}
var draw_top_bottom = (
(d[2].yupper != d[2].ylower) &&
isFinite(y(d[2].ylower)) &&
isFinite(y(d[2].yupper))
);
var draw_left_right = (
(d[2].xupper != d[2].xlower) &&
isFinite(x(d[2].xlower)) &&
isFinite(x(d[2].xupper))
);
var px = x(d[0]),
py = y(d[1]),
pux = x(d[2].xupper),
plx = x(d[2].xlower),
puy = y(d[2].yupper),
ply = y(d[2].ylower);
if (draw_top_bottom) {
// draw the top bar...
pathstring += "M" + (px - errorbar_width/2.0).toFixed(3);
pathstring += "," + (puy).toFixed(3);
pathstring += "L" + (px + errorbar_width/2.0).toFixed(3);
pathstring += "," + (puy).toFixed(3);
// draw the vertical...
pathstring += "M" + (px).toFixed(3);
pathstring += "," + (puy).toFixed(3);
pathstring += "L" + (px).toFixed(3);
pathstring += "," + (ply).toFixed(3);
// draw the bottom bar
pathstring += "M" + (px - errorbar_width/2.0).toFixed(3);
pathstring += "," + (ply).toFixed(3);
pathstring += "L" + (px + errorbar_width/2.0).toFixed(3);
pathstring += "," + (ply).toFixed(3);
}
if (draw_left_right) {
// draw the left bar...
pathstring += "M" + (plx).toFixed(3);
pathstring += "," + (py - errorbar_width/2.0).toFixed(3);
pathstring += "L" + (plx).toFixed(3);
pathstring += "," + (py + errorbar_width/2.0).toFixed(3);
// draw the horizontal...
pathstring += "M" + (plx).toFixed(3);
pathstring += "," + (py).toFixed(3);
pathstring += "L" + (pux).toFixed(3);
pathstring += "," + (py).toFixed(3);
// draw the right bar
pathstring += "M" + (pux).toFixed(3);
pathstring += "," + (py - errorbar_width/2.0).toFixed(3);
pathstring += "L" + (pux).toFixed(3);
pathstring += "," + (py + errorbar_width/2.0).toFixed(3);
}
return pathstring;
}
chart.options = function(_) {
if (!arguments.length) return options;
jQuery.extend(true, options, _);
return chart;
};
chart.source_data = function(_) {
if (!arguments.length) return source_data;
source_data = _;
do_autoscale();
//x.domain([min_x, max_x]);
//y.domain([min_y, max_y]);
if (!zoomed && options.autofit) { chart.resetzoom(); }
return chart;
};
chart.x = function(_) {
if (!arguments.length) return x;
x = _;
return chart;
};
chart.y = function(_) {
if (!arguments.length) return y;
y = _;
return chart;
};
chart.min_x = function(_) {
if (!arguments.length) return min_x;
min_x = _;
return chart;
};
chart.max_x = function(_) {
if (!arguments.length) return max_x;
max_x = _;
return chart;
};
chart.min_y = function(_) {
if (!arguments.length) return min_y;
min_y = _;
return chart;
};
chart.max_y = function(_) {
if (!arguments.length) return max_y;
max_y = _;
return chart;
};
chart.zoomRect = function(_) {
if (!arguments.length) return zoomRect;
zoomRect = _;
return chart;
};
chart.zoomScroll = function(_) {
if (!arguments.length) return zoomScroll;
zoomScroll = _;
if (zoomScroll == true) {
chart.svg.call(zoom);
chart.svg.on("dblclick.zoom", null);
}
else if (zoomScroll == false) {
chart.svg.on(".zoom", null);
}
return chart;
};
chart.xtransform = function(_) {
if (!arguments.length) return options.xtransform;
options.xtransform = _;
var old_range = x.range(),
old_domain = x.domain();
x = d3.scale[options.xtransform]()
do_autoscale();
x.domain([min_x, max_x]).range(old_range);
xAxis.scale(x);
xAxisGrid.scale(x);
interactors.forEach(function(d) {d.x(x)});
chart.resetzoom();
return chart;
};
chart.ytransform = function(_) {
if (!arguments.length) return options.ytransform;
options.ytransform = _;
var old_range = y.range(),
old_domain = y.domain();
y = d3.scale[options.ytransform]()
do_autoscale();
y.domain([min_y, max_y]).range(old_range);
yAxis.scale(y);
yAxisGrid.scale(y);
interactors.forEach(function(d) {d.y(y)});
chart.resetzoom();
return chart;
};
chart.interactors = function(_) {
if (!arguments.length) return interactors;
chart.svg.select("g.mainview").call(_);
_.x(x).y(y).update();
interactors.push(_);
return chart;
};
chart.export_svg = function() {
var dsvg = d3.select(chart.svg.node().cloneNode(true));
dsvg.style("font-family", "sans-serif")
.style("font-size", "14px")
dsvg.selectAll("line").style("fill", "none");
dsvg.selectAll("path").style("fill", "none");
dsvg.selectAll(".mainview>rect").style("fill", "none");
dsvg.selectAll("clippath rect").style("fill", "none");
dsvg.selectAll(".axis-label").style("font-size", "18px");
dsvg.selectAll(".axis path, .axis line").style("stroke", "black"); //.css("stroke-width", "1.5px");
dsvg.selectAll(".grid .tick").style("stroke", "lightgrey")
.style("opacity", "0.7");
dsvg.selectAll(".grid path").style("stroke-width", "0");
dsvg.selectAll("text.position-cursor").remove();
return dsvg.node(); // user outerHTML of this
}
chart.print_plot = function() {
var svg = chart.export_svg();
var serializer = new XMLSerializer();
var svg_blob = new Blob([serializer.serializeToString(svg)],
{'type': "image/svg+xml"});
var url = URL.createObjectURL(svg_blob);
var svg_win = window.open(url, "svg_win");
}
chart.autofit = function() {
var outercontainer = chart.outercontainer,
innerwidth = outercontainer.node().clientWidth,
innerheight = outercontainer.node().clientHeight,
width = innerwidth - options.margin.right - options.margin.left,
height = innerheight - options.margin.top - options.margin.bottom;
x.range([0, width]);
y.range([height, 0]);
zoom.x(x).y(y);
xAxis.scale(x);
yAxis.scale(y);
xAxisGrid.scale(x).tickSize(-height);
yAxisGrid.scale(y).tickSize(-width);
chart.svg.attr("width", width + options.margin.left + options.margin.right)
.attr("height", height + options.margin.top + options.margin.bottom);
chart.svg.select("clipPath rect").attr("width", width).attr("height", height);
chart.svg.selectAll("g.axes g.x").attr("transform", "translate(0," + height + ")");
chart.svg.selectAll("g.x.axis text").attr("x", width/2.0);
chart.svg.selectAll("g.y.axis text").attr("x", -height/2.0);
chart.svg.select(".position-cursor").attr("x", width-10).attr("y", height-10);
chart.svg.select("g.legend").attr("transform", "translate(" + (width-65) + ",25)");
update();
}
chart.resetzoom = resetzoom;
chart.type = "xy";
return chart;
}
// Just return a value to define the module export.
// This example returns an object, but the module
// can return a function as the exported value.
return xyChart;
}));