Quite good looking graph derived from d3.js http://c3js.org
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(function (window) {
window.c3 = {}
/*
* Generate chart according to config
*/
c3.generate = function (config) {
var c3 = { data : {} },
cache = {}
/*-- Handle Config --*/
function checkConfig (key, message) {
if ( ! (key in config)) throw Error(message)
}
function getConfig (keys, defaultValue) {
var target = config
for (var i = 0; i < keys.length; i++) {
if ( ! (keys[i] in target)) return defaultValue
target = target[keys[i]]
}
return target
}
// bindto - id to bind the chart
checkConfig('bindto', 'bindto is required in config')
var __size_width = getConfig(['size','width'], 640),
__size_height = getConfig(['size','height'], 480)
// data - data configuration
checkConfig('data', 'data is required in config')
var __data_x = getConfig(['data','x'], 'x'),
__data_x_format = getConfig(['data','x_format'], '%Y-%m-%d'),
__data_id_converter = getConfig(['data','id_converter'], function(id){ return id; }),
__data_names = getConfig(['data','names'], {}),
__data_groups = getConfig(['data','groups'], []),
__data_axes = getConfig(['data','axes'], {}),
__data_types = getConfig(['data','types'], {}),
__data_regions = getConfig(['data','regions'], {}),
__data_colors = getConfig(['data','colors'], {}),
__data_selection_enabled = getConfig(['data','selection','enabled'], false),
__data_selection_grouped = getConfig(['data','selection','grouped'], false),
__data_selection_isselectable = getConfig(['data','selection','isselectable'], function(d){return true})
// subchart
var __subchart_show = getConfig(['subchart','show'], true),
__subchart_size_height = __subchart_show ? getConfig(['subchart','size','height'], 60) : 0,
__subchart_default = getConfig(['subchart','default'], null)
// color
var __color_pattern = getConfig(['color','pattern'], null)
// legend
var __legend_show = getConfig(['legend','show'], true),
__legend_item_width = getConfig(['legend','item','width'], 80), // TODO: auto
__legend_item_onclick = getConfig(['legend','item','onclick'], function(){})
// axis
var __axis_x_type = getConfig(['axis','x','type'], 'indexed'),
__axis_x_categories = getConfig(['axis','x','categories'], ['hoge']),
__axis_x_tick_centered = getConfig(['axis','x','tick','centered'], false),
__axis_y_max = getConfig(['axis','y','max'], null),
__axis_y_min = getConfig(['axis','y','min'], null),
__axis_y_center = getConfig(['axis','y','center'], null),
__axis_y_text = getConfig(['axis','y','text'], null),
__axis_y_rescale = getConfig(['axis','y','rescale'], true),
__axis_y2_show = getConfig(['axis','y2','show'], false),
__axis_y2_max = getConfig(['axis','y2','max'], null),
__axis_y2_min = getConfig(['axis','y2','min'], null),
__axis_y2_center = getConfig(['axis','y2','center'], null),
__axis_y2_text = getConfig(['axis','y2','text'], null),
__axis_y2_rescale = getConfig(['axis','y2','rescale'], true),
__axis_rotated = getConfig(['axis','rotated'], false)
// grid
var __grid_x_show = getConfig(['grid','x','show'], false),
__grid_x_type = getConfig(['grid','x','type'], 'tick'),
__grid_x_lines = getConfig(['grid','x','lines'], null),
__grid_y_show = getConfig(['grid','y','show'], false),
__grid_y_type = getConfig(['grid','y','type'], 'tick'),
__grid_y_lines = getConfig(['grid','y','lines'], null)
// point - point of each data
var __point_show = getConfig(['point','show'], false),
__point_r = __point_show ? getConfig(['point','r'], 2.5) : 0,
__point_focus_line_enabled = getConfig(['point','focus','line','enabled'], false),
__point_focus_expand_enabled = getConfig(['point','focus','expand','enabled'], __point_show),
__point_focus_expand_r = getConfig(['point','focus','expand','r'], __point_focus_expand_enabled ? 4 : __point_r),
__point_select_r = getConfig(['point','focus','select','r'], 8),
__point_onclick = getConfig(['point','onclick'], function(){}),
__point_onselected = getConfig(['point','onselected'], function(){}),
__point_onunselected = getConfig(['point','onunselected'], function(){})
// region - region to change style
var __regions = getConfig(['regions'], [])
// tooltip - show when mouseover on each data
var __tooltip_contents = getConfig(['tooltip','contents'], function(d) {
var date = isTimeSeries ? d[0].x.getFullYear() + '.' + (d[0].x.getMonth()+1) + '.' + d[0].x.getDate() : isCategorized ? category(d[0].x) : d[0].x,
text = "<table class='tooltip'><tr><th colspan='2'>" + date + "</th></tr>"
for (var i = 0; i < d.length; i++){
var value = (typeof d[i].value !== 'undefined') ? (Math.round(d[i].value*100)/100).toFixed(2) : '-'
text += "<tr><td>" + d[i].name + "</td><td class='value'>" + value + "</td></tr>"
}
return text + "</table>"
})
/*-- Set Variables --*/
var clipId = config.bindto.replace('#','') + '-clip',
clipPath = "url(#" + clipId + ")"
var isTimeSeries = (__axis_x_type === 'timeseries'),
isCategorized = (__axis_x_type === 'categorized')
var dragStart = null, dragging = false
var legendHeight = __legend_show ? 40 : 0
var customTimeFormat = timeFormat([
[d3.time.format("%Y/%-m/%-d"), function() { return true }],
[d3.time.format("%-m/%-d"), function(d) { return d.getMonth() }],
[d3.time.format("%-m/%-d"), function(d) { return d.getDate() != 1 }],
[d3.time.format("%-m/%-d"), function(d) { return d.getDay() && d.getDate() != 1 }],
[d3.time.format("%I %p"), function(d) { return d.getHours() }],
[d3.time.format("%I:%M"), function(d) { return d.getMinutes() }],
[d3.time.format(":%S"), function(d) { return d.getSeconds() }],
[d3.time.format(".%L"), function(d) { return d.getMilliseconds() }]
])
function timeFormat(formats) {
return function(date) {
var i = formats.length - 1, f = formats[i]
while (!f[1](date)) f = formats[--i]
return f[0](date)
}
}
/*-- Set Chart Params --*/
var bottom = 20 + __subchart_size_height + legendHeight,
right = __axis_y2_show && !__axis_rotated ? 50 : 1,
top2 = __size_height - __subchart_size_height - legendHeight,
bottom2 = 20 + legendHeight,
top3 = __size_height - legendHeight,
margin = {top: 10, right: right, bottom: bottom, left: 40},
margin2 = {top: top2, right: 20, bottom: bottom2, left: 40},
margin3 = {top: top3, right: 20, bottom: 0, left: 40},
width = __size_width - margin.left - margin.right,
height = __size_height - margin.top - margin.bottom,
height2 = __size_height - margin2.top - margin2.bottom,
height3 = __size_height - margin3.top - margin3.bottom
var parseDate = d3.time.format(__data_x_format).parse
var xMin = __axis_rotated ? 10 : 0,
xMax = __axis_rotated ? height : width,
yMin = __axis_rotated ? 0 : height,
yMax = __axis_rotated ? width : 10
var x = ((isTimeSeries) ? d3.time.scale() : d3.scale.linear()).range([xMin, xMax]),
y = d3.scale.linear().range([yMin, yMax]),
y2 = d3.scale.linear().range([yMin, yMax]),
subX = ((isTimeSeries) ? d3.time.scale() : d3.scale.linear()).range([0, width]),
subY = d3.scale.linear().range([height2, 10]),
subY2 = d3.scale.linear().range([height2, 10])
// TODO: Enable set position
var xAxis = isCategorized ? categoryAxis() : d3.svg.axis(),
yAxis = d3.svg.axis(),
yAxis2 = d3.svg.axis(),
subXAxis = isCategorized ? categoryAxis() : d3.svg.axis()
xAxis.scale(x).orient(__axis_rotated ? "left" : "bottom")
yAxis.scale(y).orient(__axis_rotated ? "bottom" : "left")
yAxis2.scale(y2).orient(__axis_rotated ? "top" : "right")
subXAxis.scale(subX).orient("bottom")
if (isTimeSeries) {
xAxis.tickFormat(customTimeFormat)
// TODO: fix
xAxis.tickOffset = function () {
return 0
};
// TODO: fix
subXAxis.tickOffset = function () {
return 0
}
}
if (isCategorized) {
xAxis.categories(__axis_x_categories).tickCentered(__axis_x_tick_centered)
subXAxis.categories(__axis_x_categories).tickCentered(__axis_x_tick_centered)
}
// Use custom scale if needed
if (isCategorized) {
// TODO: fix this
// TODO: fix x_grid
(function () {
var _x = x, _subX = subX
var keys = Object.keys(x), key, i
x = function(d){ return _x(d) + xAxis.tickOffset() }
subX = function(d){ return _subX(d) + subXAxis.tickOffset() }
for (i = 0; i < keys.length; i++) {
key = keys[i]
x[key] = _x[key]
subX[key] = _subX[key]
}
x.domain = function (domain) {
if (!arguments.length) {
var domain = _x.domain()
domain[1]++
return domain
}
_x.domain(domain)
return x
}
})()
}
// For main region
var lineOnMain = (function () {
var line = d3.svg.line()
.x(__axis_rotated ? function(d){ return getYScale(d.id)(d.value) } : xx)
.y(__axis_rotated ? xx : function(d){ return getYScale(d.id)(d.value) })
return function (d) {
var x0, y0
if (isLineType(d)) {
isSplineType(d) ? line.interpolate("cardinal") : line.interpolate("linear")
return __data_regions.length > 0 ? lineWithRegions(d.values, x, getYScale(d.id), __data_regions[d.id]) : line(d.values)
} else {
x0 = x(d.values[0].x)
y0 = getYScale(d.id)(d.values[0].value)
return __axis_rotated ? "M "+y0+" "+x0 : "M "+x0+" "+y0
}
}
})()
// For brush region
var lineOnSub = (function () {
var line = d3.svg.line()
.x(function(d){ return subX(d.x) })
.y(function(d){ return getSubYScale(d.id)(d.value) })
return function (d) {
return isLineType(d) ? line(d.values) : "M " + subX(d.values[0].x)+ " " + getSubYScale(d.id)(d.values[0].value)
}
})()
// For region
var regionStart = function (d) {
return ('start' in d) ? x(d.start) : 0
}
var regionWidth = function (d) {
var start = ('start' in d) ? x(d.start) : 0,
end = ('end' in d) ? x(d.end) : width,
w = end - start
return (w < 0) ? 0 : w
}
// Define color
var color = generateColor(__data_colors, __color_pattern)
// Define svgs
var svg = d3.select(config.bindto).append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
svg.append("defs")
svg.select("defs").append("clipPath")
.attr("id", clipId)
.append("rect")
.attr("y", margin.top)
.attr("width", width)
.attr("height", height-margin.top)
svg.select("defs").append("clipPath")
.attr("id", "xaxis-clip")
.append("rect")
.attr("x", -1)
.attr("y", -1)
.attr("width", width + 2)
.attr("height", 40)
svg.select("defs").append("clipPath")
.attr("id", "yaxis-clip")
.append("rect")
.attr("x", -40 + 1)
.attr("y", margin.top - 1)
.attr("width", 40)
.attr("height", height - margin.top + 2)
// Define regions
var main = svg.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
var context = null
if (__subchart_show) {
context = svg.append("g")
.attr("transform", "translate(" + margin2.left + "," + margin2.top + ")")
}
var legend = null
if (__legend_show) {
legend = svg.append("g")
.attr("transform", "translate(" + margin3.left + "," + margin3.top + ")")
}
// Define tooltip
var tooltip = d3.select(config.bindto)
.style("position", "relative")
.append("div")
.style("position", "absolute")
.style("width", "30%") // TODO: cul actual width when show
.style("z-index", "10")
.style("visibility", "hidden")
/*-- Define Functions --*/
//-- Domain --//
function getYDomainMin (targets) {
return d3.min(targets, function(t){ return d3.min(t.values, function(v){ return v.value }) })
}
function getYDomainMax (targets) {
var ys = {}, j, k
targets.forEach(function(t){
ys[t.id] = []
t.values.forEach(function(v){
ys[t.id].push(v.value)
})
})
for (j = 0; j < __data_groups.length; j++) {
for (k = 1; k < __data_groups[j].length; k++) {
if ( ! isBarType(__data_groups[j][k])) continue
if (typeof ys[__data_groups[j][k]] === 'undefined') continue
ys[__data_groups[j][k]].forEach(function(v,i){
if (getAxisId(__data_groups[j][k]) === getAxisId(__data_groups[j][0])){
ys[__data_groups[j][0]][i] += v*1
}
})
}
}
return d3.max(Object.keys(ys).map(function(key){ return d3.max(ys[key]) }))
}
function getYDomain (targets, axisId) {
var yTargets = getTargets(function(d){ return getAxisId(d.id) === axisId }),
yMin = axisId === 'y2' ? __axis_y2_min : __axis_y_min,
yMax = axisId === 'y2' ? __axis_y2_max : __axis_y_max,
yDomainMin = (yMin !== null) ? yMin : getYDomainMin(yTargets),
yDomainMax = (yMax !== null) ? yMax : getYDomainMax(yTargets),
padding = Math.abs(yDomainMax - yDomainMin) * 0.1,
center = axisId === 'y2' ? __axis_y2_center : __axis_y_center
if (center !== null) {
yDomainAbs = Math.max(Math.abs(yDomainMin), Math.abs(yDomainMax))
yDomainMax = yDomainAbs - center
yDomainMin = center - yDomainAbs
}
return [hasBarType(yTargets) ? 0 : yDomainMin-padding, yDomainMax+padding]
}
function getXDomainRatio () {
if (brush.empty()) return 1
var domain = subX.domain(), extent = brush.extent()
return (domain[1] - domain[0]) / (extent[1] - extent[0])
}
//-- Cache --//
function hasCaches (ids) {
for (var i = 0; i < ids.length; i++){
if ( ! (ids[i] in cache)) return false
}
return true
}
function addCache (id, target) {
cache[id] = cloneTarget(target)
}
function getCaches (ids) {
var targets = []
for (var i = 0; i < ids.length; i++){
if (ids[i] in cache) targets.push(cloneTarget(cache[ids[i]]))
}
return targets
}
//-- Axis --//
function getAxisId (id) {
return id in __data_axes ? __data_axes[id] : 'y'
}
function getYScale (id) {
return getAxisId(id) === 'y2' ? y2 : y
}
function getSubYScale (id) {
return getAxisId(id) === 'y2' ? subY2 : subY
}
//-- Data --//
function convertRowsToData (rows) {
var keys = rows[0], new_row = {}, new_rows = [], i, j
for (i = 1; i < rows.length; i++) {
new_row = {}
for (j = 0; j < rows[i].length; j++) {
new_row[keys[j]] = rows[i][j]
}
new_rows.push(new_row)
}
return new_rows
}
function convertColumnsToData (columns) {
var new_rows = [], i, j, key
for (i = 0; i < columns.length; i++) {
key = columns[i][0]
for (j = 1; j < columns[i].length; j++) {
if (typeof new_rows[j-1] === 'undefined') {
new_rows[j-1] = {}
}
new_rows[j-1][key] = columns[i][j]
}
}
return new_rows
}
function convertDataToTargets (data) {
var ids = d3.keys(data[0]).filter(function(key){ return key !== __data_x })
var targets, i = 0
data.forEach(function(d) {
d.x = (isTimeSeries) ? parseDate(d[__data_x]) : i++
if (firstDate === null) firstDate = new Date(d.x)
lastDate = new Date(d.x)
})
targets = ids.map(function(id,i) {
var convertedId = __data_id_converter(id)
return {
id : convertedId,
id_org : id,
values : data.map(function(d) {
return {x: d.x, value: +d[id], id: convertedId}
})
}
})
// cache as original id keyed
targets.forEach(function(d){
addCache(d.id_org, d)
})
return targets
}
function cloneTarget (target) {
return {
id : target.id,
id_org : target.id_org,
values : target.values.map(function(d){
return {x: d.x, value: d.value, id: d.id}
})
}
}
function maxDataCount () {
return d3.max(c3.data.targets, function(t){ return t.values.length })
}
function getTargetIds (targets) {
targets = (typeof targets === 'undefined') ? c3.data.targets : targets
return targets.map(function(d){ return d.id; })
}
function hasTarget (id) {
var ids = getTargetIds(), i
for (i = 0; i < ids.length; i++) {
if (ids[i] === id) return true
}
return false
}
function getTargets (filter) {
return typeof filter !== 'undefined' ? c3.data.targets.filter(filter) : c3.data.targets
}
function category (i) {
return i < __axis_x_categories.length ? __axis_x_categories[i] : i
}
function classShapes (d) { return "__shapes __shapes-" + d.id }
function classLine (d) { return classShapes(d) + " __line __line-" + d.id }
function classCircles (d) { return classShapes(d) + " __circles __circles-" + d.id }
function classBars (d) { return classShapes(d) + " __bars __bars-" + d.id }
function classShape (d,i) { return "__shape __shape-" + i }
function classCircle (d,i) { return classShape(d,i) + " __circle __circle-" + i }
function classBar (d,i) { return classShape(d,i) + " __bar __bar-" + i }
function xx (d) {
return x(d.x)
}
function xv (d) {
return x(d.value)
}
function yv (d) {
return y(d.value)
}
//-- Circle --/
function circleX (d) {
return x(d.x)
}
function circleY (d) {
return getYScale(d.id)(d.value)
}
//-- Bar --//
function getBarIndices () {
var indices = {}, i = 0, j, k
getTargets(isBarType).forEach(function(d) {
for (j = 0; j < __data_groups.length; j++) {
if (__data_groups[j].indexOf(d.id) < 0) continue
for (k = 0; k < __data_groups[j].length; k++) {
if (__data_groups[j][k] in indices) {
indices[d.id] = indices[__data_groups[j][k]]
break
}
}
}
if (typeof indices[d.id] === 'undefined') indices[d.id] = i++
})
indices.__max__ = i-1
return indices
}
function getBarX (barW, barTargetsNum, barIndices, isSub) {
var scale = isSub ? subX : x
return function (d) {
var barIndex = d.id in barIndices ? barIndices[d.id] : 0
return scale(d.x) - barW * (barTargetsNum/2 - barIndex)
}
}
function getBarY (barH, barIndices, zeroBased, isSub) {
var indicesIds = Object.keys(barIndices)
return function (d,i) {
var offset = 0
var scale = isSub ? getSubYScale(d.id) : getYScale(d.id)
getTargets(isBarType).forEach(function(t){
if (t.id === d.id || barIndices[t.id] !== barIndices[d.id]) return
if (indicesIds.indexOf(t.id) < indicesIds.indexOf(d.id)) {
offset += barH(t.values[i])
}
})
return zeroBased ? offset : scale(d.value) - offset
}
}
function getBarW (axis, barTargetsNum) {
return (axis.tickOffset()*2*0.6) / barTargetsNum
}
function getBarH (height, isSub) {
var h = height === null ? function(v){ return v } : function(v){ return height-v }
return function (d) {
var scale = isSub ? getSubYScale(d.id) : getYScale(d.id)
return h(scale(d.value))
}
}
//-- Type --//
function setTargetType (targets, type) {
var targetIds = typeof targets === 'undefined' ? getTargetIds() : targets
if (typeof targetIds === 'string') targetIds = [targetIds]
for (var i = 0; i < targetIds.length; i++) {
__data_types[targetIds[i]] = type
}
}
function hasType (targets, type) {
var has = false
targets.forEach(function(t){
if (__data_types[t.id] === type) has = true
if (!(t.id in __data_types) && type === 'line') has = true
})
return has
}
function hasLineType (targets) {
return hasType(targets, 'line')
}
function hasBarType (targets) {
return hasType(targets, 'bar')
}
function isLineType (d) {
var id = (typeof d === 'string') ? d : d.id
return !(id in __data_types) || __data_types[id] === 'line' || __data_types[id] === 'spline'
}
function isSplineType (d) {
var id = (typeof d === 'string') ? d : d.id
return __data_types[id] === 'spline'
}
function isBarType (d) {
var id = (typeof d === 'string') ? d : d.id
return __data_types[id] === 'bar'
}
function lineData (d) {
return isLineType(d) ? d.values : []
}
function barData (d) {
return isBarType(d) ? d.values : []
}
//-- Color --//
function generateColor (_colors, _pattern) {
var ids = [],
colors = _colors,
pattern = (_pattern !== null) ? _pattern : ['#1f77b4', '#ff7f0e', '#2ca02c', '#d62728','#9467bd', '#8c564b', '#e377c2', '#7f7f7f', '#bcbd22', '#17becf'] //same as d3.scale.category10()
return function (id) {
// if specified, choose that color
if (id in colors) return _colors[id]
// if not specified, choose from pattern
if ( ! (ids.indexOf(id) >= 0)) {
ids.push(id)
}
return pattern[ids.indexOf(id) % pattern.length]
}
}
//-- Util --//
function isWithinCircle (_this, _r) {
var mouse = d3.mouse(_this), d3_this = d3.select(_this)
var cx = d3_this.attr("cx")*1, cy = d3_this.attr("cy")*1
return Math.sqrt(Math.pow(cx-mouse[0],2)+Math.pow(cy-mouse[1],2)) < _r
}
function isWithinBar (_this) {
var mouse = d3.mouse(_this), d3_this = d3.select(_this)
var x = d3_this.attr("x")*1, y = d3_this.attr("y")*1, w = d3_this.attr("width")*1
var sx = x - 10, ex = x + w + 10, ey = y - 10
return sx < mouse[0] && mouse[0] < ex && ey < mouse[1]
}
function isWithinRegions (x, regions) {
var i
for (i = 0; i < regions.length; i++) {
if (regions[i].start < x && x <= regions[i].end) return true
}
return false
}
//-- Selection --//
function selectPoint (target, d, i) {
__point_onselected(target, d)
// add selected-circle on low layer g
main.select(".selected-circles-" + d.id).selectAll('.selected-circle-' + i)
.data([d])
.enter().append('circle')
.attr("class", function(d){ return "selected-circle selected-circle-" + i })
.attr("cx", __axis_rotated ? circleY : circleX)
.attr("cy", __axis_rotated ? circleX : circleY)
.attr("stroke", function(){ return color(d.id) })
.attr("r", __point_select_r * 1.4)
.transition().duration(100)
.attr("r", __point_select_r)
}
function unselectPoint (target, d, i) {
__point_onunselected(target, d)
// remove selected-circle from low layer g
main.select(".selected-circles-" + d.id).selectAll(".selected-circle-" + i)
.transition().duration(100).attr('r', 0)
.remove()
}
function togglePoint (selected, target, d, i) {
(selected) ? selectPoint(target, d, i) : unselectPoint(target, d, i)
}
function selectBar (target, d, i) {
}
function unselectBar (target, d, i) {
}
function toggleBar (selected, target, d, i) {
(selected) ? selectBar(target, d, i) : unselectBar(target, d, i)
}
//-- Shape --//
function lineWithRegions (d, x, y, regions) {
var prev = -1, i, j
var s = "M"
var xp, yp, dx, dy, dd, diff, diff2
var xValue, yValue
// Check start/end of regions
if (typeof regions !== 'undefined') {
for (i = 0; i < regions.length; i++){
if (typeof regions[i].start === 'undefined') {
regions[i].start = d[0].x
}
if (typeof regions[i].end === 'undefined') {
regions[i].end = d[d.length-1].x
}
}
}
// Set scales
xValue = __axis_rotated ? function(d){ return y(d.value) } : function(d){ return x(d.x) }
yValue = __axis_rotated ? function(d){ return x(d.x) } : function(d){ return y(d.value) }
// Generate
for (i = 0; i < d.length; i++) {
// Draw as normal
if (typeof regions === 'undefined' || ! isWithinRegions(d[i].x, regions)) {
s += " "+xValue(d[i])+" "+yValue(d[i])
}
// Draw with region // TODO: Fix for horizotal charts
else {
xp = d3.scale.linear().range([d[i-1].x, d[i].x])
yp = d3.scale.linear().range([d[i-1].value, d[i].value])
dx = x(d[i].x) - x(d[i-1].x)
dy = y(d[i].value) - y(d[i-1].value)
dd = Math.sqrt(Math.pow(dx,2) + Math.pow(dy,2))
diff = 2/dd
diffx2 = diff*2
for (j = diff; j <= 1; j += diffx2) {
s += "M"+x(xp(j))+" "+y(yp(j))+" "+x(xp(j+diff))+" "+y(yp(j+diff))
}
}
prev = d[i].x
}
return s
}
/*-- Define brush --*/
var brush = d3.svg.brush().x(subX).on("brush", redraw)
/*-- Draw Chart --*/
// for brush area culculation
var firstDate = null,
lastDate = null
function init (data) {
var targets = c3.data.targets = convertDataToTargets(data)
var rectX, rectW
var grid, xgridLine
// TODO: set names if names not specified
x.domain(d3.extent(data.map(function(d){ return d.x })))
y.domain(getYDomain(targets, 'y'))
y2.domain(getYDomain(targets, 'y2'))
subX.domain(x.domain())
subY.domain(y.domain())
subY2.domain(y2.domain())
/*-- Main Region --*/
grid = main.append('g')
.attr("clip-path", clipPath)
.attr('class', 'grid')
// X-Grid
if (__grid_x_show) {
grid.append("g").attr("class", "xgrids")
}
if (__grid_x_lines) {
xgridLine = grid.append('g')
.attr("class", "xgrid-lines")
.selectAll('.xgrid-line')
.data(__grid_x_lines)
.enter().append('g')
.attr("class", "xgrid-line")
xgridLine.append('line')
.attr("class", function(d){ return "" + d['class'] })
xgridLine.append('text')
.attr("class", function(d){ return "" + d['class'] })
.attr("text-anchor", "end")
.attr("transform", __axis_rotated ? "" : "rotate(-90)")
.attr('dx', __axis_rotated ? 0 : -margin.top)
.attr('dy', -6)
.text(function(d){ return d.text })
}
if (__point_focus_line_enabled) {
grid.append('g')
.attr("class", "xgrid-focus")
.append('line')
.attr('class', 'xgrid-focus')
.attr("x1", __axis_rotated ? 0 : -10)
.attr("x2", __axis_rotated ? width : -10)
.attr("y1", __axis_rotated ? -10 : margin.top)
.attr("y2", __axis_rotated ? -10 : height)
}
// Y-Grid
if (__grid_y_show) {
grid.append('g').attr('class', 'ygrids')
}
if (__grid_y_lines) {
grid.append('g')
.attr('class', 'ygrid-lines')
.selectAll('ygrid-line')
.data(__grid_y_lines)
.enter().append('line')
.attr("class", function(d){ return "ygrid-line " + d['class'] })
}
// Area
main.append('g')
.attr("clip-path", clipPath)
.attr("class", "regions")
// Define g for chart area
main.append('g')
.attr("clip-path", clipPath)
.attr('class', 'chart')
// Cover whole with rects for events
main.select('.chart').append("g")
.attr("class", "event-rects")
.style('fill-opacity', 0)
.selectAll(".event-rects")
.data(data)
.enter().append("rect")
.attr("class", function(d,i){ return "event-rect event-rect-"+i })
.style("cursor", function(d){ return __data_selection_enabled && __data_selection_grouped ? "pointer" : null })
.on('mouseover', function(d,i) {
if (dragging) return // do nothing if dragging
var selectedData = c3.data.targets.map(function(d){ return d.values[i] });
var j, newData
// Add id,name to selectedData
for (j = 0; j < selectedData.length; j++) {
selectedData[j].name = __data_names[selectedData[j].id]
}
// Sort selectedData as names order
if (Object.keys(__data_names).length > 0) {
newData = []
for (var id in __data_names) {
for (j = 0; j < selectedData.length; j++) {
if (selectedData[j].id === id) {
newData.push(selectedData[j])
selectedData.shift(j)
break
}
}
}
selectedData = newData.concat(selectedData) // Add remained
}
// Expand circles if needed
if (__point_focus_expand_enabled) {
main.selectAll('.__circle-'+i)
.classed("_e_", true)
.attr('r', __point_focus_expand_r)
}
// Expand bars
main.selectAll(".__bar-"+i)
.classed("_e_", true)
// Show xgrid focus line
main.selectAll('line.xgrid-focus')
.style("visibility","visible")
.data([selectedData[0]])
.attr(__axis_rotated ? 'y1' : 'x1', xx)
.attr(__axis_rotated ? 'y2' : 'x2', xx)
// Set tooltip
tooltip.style("top", (d3.mouse(this)[1] + 30) + "px")
.style("left", ((__axis_rotated ? d3.mouse(this)[0] : x(selectedData[0].x)) + 60) + "px")
tooltip.html(__tooltip_contents(selectedData))
tooltip.style("visibility", "visible")
})
.on('mouseout', function(d,i) {
main.select('line.xgrid-focus').style("visibility", "hidden")
tooltip.style("visibility", "hidden")
// Undo expanded circles
main.selectAll('.__circle-'+i)
.filter(function(){ return d3.select(this).classed('_e_') })
.classed("_e_", false)
.attr('r', __point_r)
// Undo expanded bar
main.selectAll(".__bar-"+i)
.classed("_e_", false)
})
.on('mousemove', function(d,i){
if ( ! __data_selection_enabled || dragging) return
if ( __data_selection_grouped) return // nothing to do when grouped
main.selectAll('.__shape-'+i)
.filter(function(d){ return __data_selection_isselectable(d) })
.each(function(d){
var _this = d3.select(this).classed('_e_', true)
if (this.nodeName === 'circle') _this.attr('r', __point_focus_expand_r)
d3.select('.event-rect-'+i).style('cursor', null)
})
.filter(function(d){
var _this = d3.select(this)
if (this.nodeName === 'circle') {
return isWithinCircle(this, __point_select_r)
}
else if (this.nodeName === 'rect') {
return isWithinBar(this, _this.attr('x'), _this.attr('y'))
}
})
.each(function(d){
var _this = d3.select(this)
if ( ! _this.classed('_e_')) {
_this.classed('_e_', true)
if (this.nodeName === 'circle') _this.attr('r', __point_select_r)
}
d3.select('.event-rect-'+i).style('cursor', 'pointer')
})
})
.on('click', function(d,i) {
main.selectAll('.__shape-'+i).each(function(d){
var _this = d3.select(this),
isSelected = _this.classed('_s_')
var isWithin = false, toggle
if (this.nodeName === 'circle') {
isWithin = isWithinCircle(this, __point_select_r*1.5)
toggle = togglePoint
}
else if (this.nodeName === 'rect') {
isWithin = isWithinBar(this)
toggle = toggleBar
}
if (__data_selection_grouped || isWithin) {
if (__data_selection_enabled && __data_selection_isselectable(d)) {
_this.classed('_s_', !isSelected)
toggle(!isSelected, _this, d, i)
}
__point_onclick(d, _this) // TODO: should be __data_onclick
}
})
})
.call(
d3.behavior.drag().origin(Object).on('drag', function(d){
if ( ! __data_selection_enabled) return // do nothing if not selectable
var sx = dragStart[0], sy = dragStart[1],
mouse = d3.mouse(this),
mx = mouse[0],
my = mouse[1],
minX = Math.min(sx,mx),
maxX = Math.max(sx,mx),
minY = (__data_selection_grouped) ? margin.top : Math.min(sy,my),
maxY = (__data_selection_grouped) ? height : Math.max(sy,my)
main.select('.dragarea')
.attr('x', minX)
.attr('y', minY)
.attr('width', maxX-minX)
.attr('height', maxY-minY)
main.selectAll('.__shapes').selectAll('.__shape')
.filter(function(d){ return __data_selection_isselectable(d) })
.each(function(d,i){
var _this = d3.select(this),
isSelected = _this.classed('_s_'),
isIncluded = _this.classed('_i_'),
_x, _y, _w, toggle, isWithin = false
if (this.nodeName === 'circle') {
_x = _this.attr("cx")*1
_y = _this.attr("cy")*1
toggle = togglePoint
isWithin = minX < _x && _x < maxX && minY < _y && _y < maxY
}
else if (this.nodeName === 'rect') {
_x = _this.attr("x")*1
_y = _this.attr("y")*1
_w = _this.attr('width')*1
toggle = toggleBar
isWithin = minX < _x+_w && _x < maxX && _y < maxY
}
if (isWithin ^ isIncluded) {
_this.classed('_i_', !isIncluded)
// TODO: included/unincluded callback here
_this.classed('_s_', !isSelected)
toggle(!isSelected, _this, d, i)
}
})
})
.on('dragstart', function() {
if ( ! __data_selection_enabled) return // do nothing if not selectable
dragStart = d3.mouse(this)
main.select('.chart').append('rect')
.attr('class', 'dragarea')
.style('opacity', 0.1)
dragging = true
// TODO: add callback here
})
.on('dragend', function() {
if ( ! __data_selection_enabled) return // do nothing if not selectable
main.select('.dragarea')
.transition().duration(100)
.style('opacity', 0)
.remove()
main.selectAll('.__shape')
.classed('_i_', false)
dragging = false
// TODO: add callback here
})
)
// Define g for bar chart area
main.select(".chart").append("g")
.attr("class", "chart-bars")
// Define g for line chart area
main.select(".chart").append("g")
.attr("class", "chart-lines")
// ATTENTION: This must be called AFTER chart added
// Add Axis
main.append("g")
.attr("class", "x axis")
.attr("clip-path", __axis_rotated ? "" : "url(#xaxis-clip)")
.attr("transform", "translate(0," + height + ")")
.call(__axis_rotated ? yAxis : xAxis)
main.append("g")
.attr("class", "y axis")
.attr("clip-path", __axis_rotated ? "url(#yaxis-clip)" : "")
.call(__axis_rotated ? xAxis : yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("dy", "1.4em")
.attr("dx", "-.8em")
.style("text-anchor", "end")
.text(__axis_y_text)
if (__axis_y2_show) {
main.append("g")
.attr("class", "y2 axis")
.attr("transform", "translate(" + (__axis_rotated ? 0 : width) + "," + (__axis_rotated ? 10 : 0) + ")")
.call(yAxis2)
}
/*-- Context Region --*/
if (__subchart_show) {
// Define g for chart area
context.append('g')
.attr("clip-path", clipPath)
.attr('class', 'chart')
// Define g for bar chart area
context.select(".chart").append("g")
.attr("class", "chart-bars")
// Define g for line chart area
context.select(".chart").append("g")
.attr("class", "chart-lines")
// ATTENTION: This must be called AFTER chart rendered and BEFORE brush called.
// Update extetn for Brush
if (__subchart_default !== null) {
brush.extent((isTimeSeries) ? __subchart_default(firstDate,lastDate) : __subchart_default(0,maxDataCount()-1))
}
// Add extent rect for Brush
context.append("g")
.attr("class", "x brush")
.call(brush)
.selectAll("rect")
.attr("height", height2)
// ATTENTION: This must be called AFTER chart added
// Add Axis
context.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height2 + ")")
.call(subXAxis)
}
/*-- Legend Region --*/
if (__legend_show) updateLegend(targets)
// Set targets
updateTargets(targets)
// Draw with targets
redraw(false, true, true)
}
function redraw (withTransition, withY, withSubchart) {
var xgrid, xgridData, xgridLine
var mainPath, mainCircle, mainBar, contextPath
var barIndices = getBarIndices(), barTargetsNum = barIndices.__max__ + 1
var barX, barY, barW, barH
var rectX, rectW
withY = (typeof withY === 'undefined') ? false : withY
withSubchart = (typeof withSubchart === 'undefined') ? false : withSubchart
// ATTENTION: call here to update tickOffset
x.domain(brush.empty() ? subX.domain() : brush.extent())
y.domain(getYDomain(c3.data.targets, 'y'))
y2.domain(getYDomain(c3.data.targets, 'y2'))
main.selectAll(".x.axis").transition().duration(__axis_rotated ? 250 : 0).call(__axis_rotated ? yAxis : xAxis)
main.selectAll(".y.axis").transition().duration(__axis_rotated ? 0 : 250).call(__axis_rotated ? xAxis : yAxis)
main.selectAll(".y2.axis").transition().call(yAxis2)
// Update sub domain
subY.domain(y.domain())
subY2.domain(y2.domain())
// grid
if (__grid_x_show) {
if (__grid_x_type === 'year') {
xgridData = []
firstYear = firstDate.getFullYear()
lastYear = lastDate.getFullYear()
for (var year = firstYear; year <= lastYear; year++) {
xgridData.push(new Date(year + '-01-01 00:00:00'))
}
} else {
xgridData = x.ticks(10)
}
xgrid = main.select('.xgrids').selectAll(".xgrid")
.data(xgridData)
xgrid.enter().append('line').attr("class", "xgrid")
xgrid.exit().remove()
main.selectAll(".xgrid")
.attr("x1", function(d){ return x(d) - xAxis.tickOffset(); })
.attr("x2", function(d){ return x(d) - xAxis.tickOffset(); })
.attr("y1", margin.top)
.attr("y2", height)
}
if (__grid_x_lines) {
xgridLine = main.selectAll(".xgrid-lines")
xgridLine.selectAll('line')
.attr("x1", __axis_rotated ? 0 : xv)
.attr("x2", __axis_rotated ? width : xv)
.attr("y1", __axis_rotated ? xv : margin.top)
.attr("y2", __axis_rotated ? xv : height)
xgridLine.selectAll('text')
.attr("x", __axis_rotated ? width : 0)
.attr("y", xv)
}
// Y-Grid
if (withY && __grid_y_show) {
ygrid = main.select('.ygrids').selectAll(".ygrid")
.data(y.ticks(10))
ygrid.enter().append('line')
.attr('class', 'ygrid')
ygrid.attr("x1", __axis_rotated ? y : 0)
.attr("x2", __axis_rotated ? y : width)
.attr("y1", __axis_rotated ? 0 : y)
.attr("y2", __axis_rotated ? height : y)
.attr("opacity", 0)
.transition()
.attr("opacity", 1)
ygrid.exit().remove()
}
if (withY && __grid_y_lines) {
main.select('.ygrid-lines').selectAll('.ygrid-line')
.attr("y1", yv)
.attr("y2", yv)
}
// bars
barW = getBarW(xAxis, barTargetsNum)
barH = getBarH(__axis_rotated ? null : height)
barX = getBarX(barW, barTargetsNum, barIndices)
barY = getBarY(barH, barIndices, __axis_rotated)
mainBar = main.selectAll('.__bars').selectAll('.__bar')
.data(barData)
mainBar.transition().duration(withTransition ? 250 : 0)
.attr("x", __axis_rotated ? barY : barX)
.attr("y", __axis_rotated ? barX : barY)
.attr("width", __axis_rotated ? barH : barW)
.attr("height", __axis_rotated ? barW : barH)
mainBar.enter().append('rect')
.attr("class", classBar)
.attr("x", __axis_rotated ? barY : barX)
.attr("y", __axis_rotated ? barX : barY)
.attr("width", __axis_rotated ? barH : barW)
.attr("height", __axis_rotated ? barW : barH)
.style("opacity", 0)
.transition().duration(withTransition ? 250 : 0)
.style('opacity', 1)
mainBar.exit().transition().duration(withTransition ? 250 : 0)
.style('opacity', 0)
.remove()
// lines and cricles
main.selectAll('.__line')
.transition().duration(withTransition ? 250 : 0)
.attr("d", lineOnMain)
mainCircle = main.selectAll('.__circles').selectAll('.__circle')
.data(lineData)
mainCircle.transition().duration(withTransition ? 250 : 0)
.attr("cx", __axis_rotated ? circleY : circleX)
.attr("cy", __axis_rotated ? circleX : circleY)
mainCircle.enter().append("circle")
.attr("class", classCircle)
.attr("cx", __axis_rotated ? circleY : circleX)
.attr("cy", __axis_rotated ? circleX : circleY)
.attr("r", __point_r)
mainCircle.exit().remove()
// subchart
if (withSubchart && __subchart_show) {
// bars
barW = getBarW(subXAxis, barTargetsNum)
barH = getBarH(height2, true)
barX = getBarX(barW, barTargetsNum, barIndices, true)
barY = getBarY(barH, barIndices, false, true)
contextBar = context.selectAll('.__bars').selectAll('.__bar')
.data(barData)
contextBar.transition().duration(withTransition ? 250 : 0)
.attr("x", barX).attr("y", barY).attr("width", barW).attr("height", barH)
contextBar.enter().append('rect')
.attr("class", classBar)
.attr("x", barX).attr("y", barY).attr("width", barW).attr("height", barH)
.style("opacity", 0)
.transition()
.style('opacity', 1)
contextBar.exit().transition()
.style('opacity', 0)
.remove()
// lines
context.selectAll('.__line')
.transition().duration(withTransition ? 250 : 0)
.attr("d", lineOnSub)
}
// circles for select
main.selectAll('.selected-circles')
.filter(function(d){ return isBarType(d); })
.selectAll('circle')
.remove()
main.selectAll('.selected-circle')
.attr("cx", __axis_rotated ? circleY : circleX)
.attr("cy", __axis_rotated ? circleX : circleY)
// rect for mouseover
rectW = (((__axis_rotated ? height : width)*getXDomainRatio())/(maxDataCount()-1))
rectX = function(d){ return x(d.x)-(rectW/2) }
main.selectAll('.event-rect')
.attr("x", __axis_rotated ? 0 : rectX)
.attr("y", __axis_rotated ? rectX : 0)
.attr("width", __axis_rotated ? width : rectW)
.attr("height", __axis_rotated ? rectW : height)
// rect for regions
mainRegion = main.select('.regions').selectAll('rect.region')
.data(__regions)
mainRegion.enter().append('rect')
.attr('class', function(d,i){ return 'region region-' + i })// TODO: fix class
mainRegion
.attr("x", __axis_rotated ? 0 : regionStart)
.attr("y", __axis_rotated ? regionStart : margin.top)
.attr("width", __axis_rotated ? width : regionWidth)
.attr("height", __axis_rotated ? regionWidth : height)
mainRegion.exit().remove()
}
function updateTargets (targets) {
var mainLineEnter, mainLineUpdate, mainBarEnter, mainBarUpdate
var contextLineEnter, contextLineUpdate, contextBarEnter, contextBarUpdate
/*-- Main --*/
//-- Bar --//
mainBarUpdate = main.select('.chart-bars')
.selectAll('.chart-bar')
.data(targets)
mainBarEnter = mainBarUpdate.enter().append('g')
.attr('class', function(d){ return 'chart-bar target target-' + d.id })
.style("pointer-events", "none")
.style('opacity', 0)
// Bars for each data
mainBarEnter.append('g')
.attr("class", classBars)
.style("fill", function(d){ return color(d.id) })
.style("stroke", function(d){ return color(d.id) })
.style("stroke-width", 0)
.style("cursor", function(d){ return __data_selection_isselectable(d) ? "pointer" : null })
//-- Line --//
mainLineUpdate = main.select('.chart-lines')
.selectAll('.chart-line')
.data(targets)
mainLineEnter = mainLineUpdate.enter().append('g')
.attr('class', function(d){ return 'chart-line target target-' + d.id })
.style("pointer-events", "none")
.style('opacity', 0)
// Lines for each data
mainLineEnter.append("path")
.attr("class", classLine)
.style("stroke", function(d){ return color(d.id) })
// Circles for each data point on lines
mainLineEnter.append('g')
.attr("class", function(d){ return "selected-circles selected-circles-" + d.id })
mainLineEnter.append('g')
.attr("class", classCircles)
.style("fill", function(d){ return color(d.id) })
.style("cursor", function(d){ return __data_selection_isselectable(d) ? "pointer" : null })
/*-- Context --*/
if (__subchart_show) {
contextBarUpdate = context.select('.chart-bars')
.selectAll('.chart-bar')
.data(targets)
contextBarEnter = contextBarUpdate.enter().append('g')
.attr('class', function(d){ return 'chart-bar target target-' + d.id })
.style('opacity', 0)
// Bars for each data
contextBarEnter.append('g')
.attr("class", classBars)
.style("fill", function(d){ return color(d.id) })
//-- Line --//
contextLineUpdate = context.select('.chart-lines')
.selectAll('.chart-line')
.data(targets)
contextLineEnter = contextLineUpdate.enter().append('g')
.attr('class', function(d){ return 'chart-line target target-' + d.id })
.style('opacity', 0)
// Lines for each data
contextLineEnter.append("path")
.attr("class", classLine)
.style("stroke", function(d) { return color(d.id) })
}
/*-- Legend --*/
if (__legend_show) {
updateLegend(targets)
}
/*-- Show --*/
// Fade-in each chart
d3.selectAll('.target')
.transition()
.style("opacity", 1)
}
function load (targets, done) {
// Update/Add data
c3.data.targets.forEach(function(d){
for (var i = 0; i < targets.length; i++) {
if (d.id === targets[i].id) {
d.values = targets[i].values
targets.splice(i,1)
break
}
}
})
c3.data.targets = c3.data.targets.concat(targets) // add remained
// Set targets
updateTargets(c3.data.targets)
// Redraw with new targets
redraw(true, true, true)
done()
}
/*-- Draw Legend --*/
function updateLegend (targets) {
var ids = getTargetIds(targets), l
var padding = width/2 - __legend_item_width*Object.keys(targets).length/2
// Define g for legend area
l = legend.selectAll('.legend-item')
.data(ids)
.enter().append('g')
.attr('class', function(d){ return 'legend-item legend-item-' + d })
.style('cursor', 'pointer')
.on('click', function(d){
__legend_item_onclick(d)
})
.on('mouseover', function(d){
d3.selectAll('.legend-item').filter(function(_d){ return _d !== d })
.transition().duration(100)
.style('opacity', 0.3)
c3.focus(d)
})
.on('mouseout', function(d){
d3.selectAll('.legend-item')
.transition().duration(100)
.style('opacity', 1)
c3.revert()
})
l.append('rect')
.attr("class", "legend-item-event")
.style('fill-opacity', 0)
.attr('x', -200)
.attr('y', function(){ return legendHeight/2 - 16 })
.attr('width', __legend_item_width)
.attr('height', 24)
l.append('rect')
.attr("class", "legend-item-tile")
.style('fill', function(d){ return color(d) })
.attr('x', -200)
.attr('y', function(){ return legendHeight/2 - 9 })
.attr('width', 10)
.attr('height', 10)
l.append('text')
.text(function(d){ return __data_names[d] })
.attr('x', -200)
.attr('y', function(d,i){ return legendHeight/2 })
legend.selectAll('rect.legend-item-event')
.data(ids)
.transition()
.attr('x', function(d,i){ return padding + __legend_item_width*i })
legend.selectAll('rect.legend-item-tile')
.data(ids)
.transition()
.attr('x', function(d,i){ return padding + __legend_item_width*i })
legend.selectAll('text')
.data(ids)
.transition()
.attr('x', function(d,i){ return padding + __legend_item_width*i + 14 })
}
/*-- Event Handling --*/
function getTargetSelector (target) {
return (typeof target === 'undefined') ? '.target' : '.target-' + target
}
c3.focus = function (target) {
c3.defocus()
d3.selectAll(getTargetSelector(target))
.filter(function(d){ return hasTarget(d.id) })
.classed('focused', true)
.transition().duration(100)
.style('opacity', 1)
}
c3.defocus = function (target) {
d3.selectAll(getTargetSelector(target))
.filter(function(d){ return hasTarget(d.id) })
.classed('focused', false)
.transition().duration(100)
.style('opacity', 0.3)
}
c3.revert = function (target) {
d3.selectAll(getTargetSelector(target))
.filter(function(d){ return hasTarget(d.id) })
.classed('focused', false)
.transition().duration(100)
.style('opacity', 1)
}
c3.show = function (target) {
d3.selectAll(getTargetSelector(target))
.transition()
.style('opacity', 1)
}
c3.hide = function (target) {
d3.selectAll(getTargetSelector(target))
.transition()
.style('opacity', 0)
}
c3.load = function (args) {
// check args
if (typeof args.done === 'undefined') {
args.done = function() {}
}
// use cache if exists
if ('cacheIds' in args && hasCaches(args.cacheIds)) {
load(getCaches(args.cacheIds), args.done)
return
}
// load data
if ('data' in args) {
load(convertDataToTargets(data), args.done)
}
else if ('url' in args) {
d3.csv(args.url, function(error, data){
load(convertDataToTargets(data), args.done)
})
}
else if ('rows' in args) {
load(convertDataToTargets(convertRowsToData(args.rows)), args.done)
}
else if ('columns' in args) {
load(convertDataToTargets(convertColumnsToData(args.columns)), args.done)
}
else {
throw Error('url or rows or columns is required.')
}
}
c3.unload = function (target) {
c3.data.targets = c3.data.targets.filter(function(d){
return d.id != target
})
d3.selectAll('.target-'+target)
.transition()
.style('opacity', 0)
.remove()
if (__legend_show) {
d3.selectAll('.legend-item-'+target).remove()
updateLegend(c3.data.targets)
}
if (c3.data.targets.length > 0) redraw(true, true, true)
}
c3.selected = function (target) {
var suffix = (typeof target !== 'undefined') ? '-' + target : ''
return d3.merge(
main.selectAll('.__shapes' + suffix).selectAll('.__shape')
.filter(function(){ return d3.select(this).classed('_s_') })
.map(function(d){ return d.map(function(_d){ return _d.__data__ }) })
)
}
c3.select = function (indices, resetOther) {
if ( ! __data_selection_enabled) return
main.selectAll('.__shapes').selectAll('.__shape').each(function(d,i){
var selectShape = (this.nodeName === 'circle') ? selectPoint : selectBar,
unselectShape = (this.nodeName === 'circle') ? unselectPoint : unselectBar
if (indices.indexOf(i) >= 0) {
if (__data_selection_grouped || __data_selection_isselectable(d)) {
selectShape(d3.select(this).classed('_s_',true), d, i)
}
} else if (typeof resetOther !== 'undefined' && resetOther) {
unselectShape(d3.select(this).classed('_s_',false), d, i)
}
})
}
c3.unselect = function (indices) {
if ( ! __data_selection_enabled) return
main.selectAll('.__shapes').selectAll('.__shape').each(function(d,i){
var unselectShape = (this.nodeName === 'circle') ? unselectPoint : unselectBar
if (typeof indices === 'undefined' || indices.indexOf(i) >= 0) {
if (__data_selection_grouped || __data_selection_isselectable(d)) {
unselectShape(d3.select(this).classed('_s_',false), d, i)
}
}
})
}
c3.toLine = function (targets) {
setTargetType(targets, 'line')
redraw(true, true, true)
}
c3.toSpline = function (targets) {
setTargetType(targets, 'spline')
redraw(true, true, true)
}
c3.toBar = function (targets) {
setTargetType(targets, 'bar')
redraw(true, true, true)
}
c3.groups = function (groups) {
if (typeof groups !== 'undefined') __data_groups = groups
redraw(true, true, true)
}
/*-- Load data and init chart with defined functions --*/
if ('url' in config.data) {
d3.csv(config.data.url, function(error, data) { init(data) })
}
else if ('rows' in config.data) {
init(convertRowsToData(config.data.rows))
}
else if ('columns' in config.data) {
init(convertColumnsToData(config.data.columns))
}
else {
throw Error('url or rows or columns is required.')
}
return c3
}
function categoryAxis () {
var scale = d3.scale.linear(), orient = "bottom", tickMajorSize = 6, tickMinorSize = 6, tickEndSize = 6, tickPadding = 3, tickCentered = false, tickTextNum = 30, tickOffset = 0, categories = []
function axisX (selection, x) {
selection.attr("transform", function(d){
return "translate(" + (x(d) + tickOffset) + ",0)"
})
}
function axisY (selection, y) {
selection.attr("transform", function(d){
return "translate(0," + y(d) + ")"
})
}
function scaleExtent (domain) {
var start = domain[0], stop = domain[domain.length - 1]
return start < stop ? [ start, stop ] : [ stop, start ]
}
function generateTicks (domain) {
var ticks = []
for (var i = Math.ceil(domain[0]); i < domain[1]; i++) {
ticks.push(i)
}
if (ticks.length > 0 && ticks[0] > 0) {
ticks.unshift(ticks[0] - (ticks[1]-ticks[0]))
}
return ticks
}
function shouldShowTickText (ticks, i) {
return ticks.length < tickTextNum || i % Math.ceil(ticks.length / tickTextNum) == 0
}
function category (i) {
return i < categories.length ? categories[i] : i
}
function axis(g) {
g.each(function() {
var g = d3.select(this)
var ticks = generateTicks(scale.domain())
var tick = g.selectAll(".tick.major").data(ticks, String), tickEnter = tick.enter().insert("g", "path").attr("class", "tick major").style("opacity", 1e-6), tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(), tickUpdate = d3.transition(tick).style("opacity", 1), tickTransform, tickX
var range = scale.rangeExtent ? scale.rangeExtent() : scaleExtent(scale.range()), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"), d3.transition(path))
var scale1 = scale.copy(), scale0 = this.__chart__ || scale1
this.__chart__ = scale1
tickEnter.append("line")
tickEnter.append("text")
var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text"), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text")
tickOffset = (scale1(1)-scale1(0))/2
tickX = tickCentered ? 0 : tickOffset
switch (orient) {
case "bottom":
{
tickTransform = axisX
lineEnter.attr("y2", tickMajorSize)
textEnter.attr("y", Math.max(tickMajorSize, 0) + tickPadding)
lineUpdate.attr("x1", tickX).attr("x2", tickX).attr("y2", tickMajorSize)
textUpdate.attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding)
text.attr("dy", ".71em").style("text-anchor", "middle")
text.text(function(i){ return shouldShowTickText(ticks, i) ? category(i) : "" })
pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize)
break
}
/* TODO: implement
case "top":
{
tickTransform = axisX
lineEnter.attr("y2", -tickMajorSize)
textEnter.attr("y", -(Math.max(tickMajorSize, 0) + tickPadding))
lineUpdate.attr("x2", 0).attr("y2", -tickMajorSize)
textUpdate.attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding))
text.attr("dy", "0em").style("text-anchor", "middle")
pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize)
break
}
*/
case "left":
{
tickTransform = axisY
lineEnter.attr("x2", -tickMajorSize)
textEnter.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding))
lineUpdate.attr("x2", -tickMajorSize).attr("y2", 0)
textUpdate.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", tickOffset)
text.attr("dy", ".32em").style("text-anchor", "end")
text.text(function(i){ return shouldShowTickText(ticks, i) ? category(i) : "" })
pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize)
break
}
/*
case "right":
{
tickTransform = axisY
lineEnter.attr("x2", tickMajorSize)
textEnter.attr("x", Math.max(tickMajorSize, 0) + tickPadding)
lineUpdate.attr("x2", tickMajorSize).attr("y2", 0)
textUpdate.attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0)
text.attr("dy", ".32em").style("text-anchor", "start")
pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize)
break
}
*/
}
if (scale.ticks) {
tickEnter.call(tickTransform, scale0)
tickUpdate.call(tickTransform, scale1)
tickExit.call(tickTransform, scale1)
} else {
var dx = scale1.rangeBand() / 2, x = function(d) {
return scale1(d) + dx
}
tickEnter.call(tickTransform, x)
tickUpdate.call(tickTransform, x)
}
})
}
axis.scale = function(x) {
if (!arguments.length) return scale
scale = x
return axis
}
axis.orient = function(x) {
if (!arguments.length) return orient
orient = x in {top:1,right:1,bottom:1,left:1} ? x + "" : "bottom"
return axis
}
axis.categories = function(x) {
if (!arguments.length) return categories
categories = x
return axis
}
axis.tickCentered = function(x) {
if (!arguments.length) return tickCentered
tickCentered = x
return axis
}
axis.tickOffset = function() {
return tickOffset
}
return axis
}
})(window)