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Viewing File: axis.js
import CLASS from './class';
import { Component } from './core';
import { isValue, isFunction, isString, isEmpty } from './util';
export var c3_axis_fn;
export var c3_axis_internal_fn;
function AxisInternal(component, params) {
var internal = this;
internal.component = component;
internal.params = params || {};
internal.d3 = component.d3;
internal.scale = internal.d3.scale.linear();
internal.range;
internal.orient = "bottom";
internal.innerTickSize = 6;
internal.outerTickSize = this.params.withOuterTick ? 6 : 0;
internal.tickPadding = 3;
internal.tickValues = null;
internal.tickFormat;
internal.tickArguments;
internal.tickOffset = 0;
internal.tickCulling = true;
internal.tickCentered;
internal.tickTextCharSize;
internal.tickTextRotate = internal.params.tickTextRotate;
internal.tickLength;
internal.axis = internal.generateAxis();
}
c3_axis_internal_fn = AxisInternal.prototype;
c3_axis_internal_fn.axisX = function (selection, x, tickOffset) {
selection.attr("transform", function (d) {
return "translate(" + Math.ceil(x(d) + tickOffset) + ", 0)";
});
};
c3_axis_internal_fn.axisY = function (selection, y) {
selection.attr("transform", function (d) {
return "translate(0," + Math.ceil(y(d)) + ")";
});
};
c3_axis_internal_fn.scaleExtent = function (domain) {
var start = domain[0], stop = domain[domain.length - 1];
return start < stop ? [ start, stop ] : [ stop, start ];
};
c3_axis_internal_fn.generateTicks = function (scale) {
var internal = this;
var i, domain, ticks = [];
if (scale.ticks) {
return scale.ticks.apply(scale, internal.tickArguments);
}
domain = scale.domain();
for (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;
};
c3_axis_internal_fn.copyScale = function () {
var internal = this;
var newScale = internal.scale.copy(), domain;
if (internal.params.isCategory) {
domain = internal.scale.domain();
newScale.domain([domain[0], domain[1] - 1]);
}
return newScale;
};
c3_axis_internal_fn.textFormatted = function (v) {
var internal = this,
formatted = internal.tickFormat ? internal.tickFormat(v) : v;
return typeof formatted !== 'undefined' ? formatted : '';
};
c3_axis_internal_fn.updateRange = function () {
var internal = this;
internal.range = internal.scale.rangeExtent ? internal.scale.rangeExtent() : internal.scaleExtent(internal.scale.range());
return internal.range;
};
c3_axis_internal_fn.updateTickTextCharSize = function (tick) {
var internal = this;
if (internal.tickTextCharSize) {
return internal.tickTextCharSize;
}
var size = {
h: 11.5,
w: 5.5
};
tick.select('text').text(function(d) { return internal.textFormatted(d); }).each(function (d) {
var box = this.getBoundingClientRect(),
text = internal.textFormatted(d),
h = box.height,
w = text ? (box.width / text.length) : undefined;
if (h && w) {
size.h = h;
size.w = w;
}
}).text('');
internal.tickTextCharSize = size;
return size;
};
c3_axis_internal_fn.transitionise = function (selection) {
return this.params.withoutTransition ? selection : this.d3.transition(selection);
};
c3_axis_internal_fn.isVertical = function () {
return this.orient === 'left' || this.orient === 'right';
};
c3_axis_internal_fn.tspanData = function (d, i, ticks, scale) {
var internal = this;
var splitted = internal.params.tickMultiline ? internal.splitTickText(d, ticks, scale) : [].concat(internal.textFormatted(d));
return splitted.map(function (s) {
return { index: i, splitted: s, length: splitted.length };
});
};
c3_axis_internal_fn.splitTickText = function (d, ticks, scale) {
var internal = this,
tickText = internal.textFormatted(d),
maxWidth = internal.params.tickWidth,
subtext, spaceIndex, textWidth, splitted = [];
if (Object.prototype.toString.call(tickText) === "[object Array]") {
return tickText;
}
if (!maxWidth || maxWidth <= 0) {
maxWidth = internal.isVertical() ? 95 : internal.params.isCategory ? (Math.ceil(scale(ticks[1]) - scale(ticks[0])) - 12) : 110;
}
function split(splitted, text) {
spaceIndex = undefined;
for (var i = 1; i < text.length; i++) {
if (text.charAt(i) === ' ') {
spaceIndex = i;
}
subtext = text.substr(0, i + 1);
textWidth = internal.tickTextCharSize.w * subtext.length;
// if text width gets over tick width, split by space index or crrent index
if (maxWidth < textWidth) {
return split(
splitted.concat(text.substr(0, spaceIndex ? spaceIndex : i)),
text.slice(spaceIndex ? spaceIndex + 1 : i)
);
}
}
return splitted.concat(text);
}
return split(splitted, tickText + "");
};
c3_axis_internal_fn.updateTickLength = function () {
var internal = this;
internal.tickLength = Math.max(internal.innerTickSize, 0) + internal.tickPadding;
};
c3_axis_internal_fn.lineY2 = function (d) {
var internal = this,
tickPosition = internal.scale(d) + (internal.tickCentered ? 0 : internal.tickOffset);
return internal.range[0] < tickPosition && tickPosition < internal.range[1] ? internal.innerTickSize : 0;
};
c3_axis_internal_fn.textY = function (){
var internal = this, rotate = internal.tickTextRotate;
return rotate ? 11.5 - 2.5 * (rotate / 15) * (rotate > 0 ? 1 : -1) : internal.tickLength;
};
c3_axis_internal_fn.textTransform = function () {
var internal = this, rotate = internal.tickTextRotate;
return rotate ? "rotate(" + rotate + ")" : "";
};
c3_axis_internal_fn.textTextAnchor = function () {
var internal = this, rotate = internal.tickTextRotate;
return rotate ? (rotate > 0 ? "start" : "end") : "middle";
};
c3_axis_internal_fn.tspanDx = function () {
var internal = this, rotate = internal.tickTextRotate;
return rotate ? 8 * Math.sin(Math.PI * (rotate / 180)) : 0;
};
c3_axis_internal_fn.tspanDy = function (d, i) {
var internal = this,
dy = internal.tickTextCharSize.h;
if (i === 0) {
if (internal.isVertical()) {
dy = -((d.length - 1) * (internal.tickTextCharSize.h / 2) - 3);
} else {
dy = ".71em";
}
}
return dy;
};
c3_axis_internal_fn.generateAxis = function () {
var internal = this, d3 = internal.d3, params = internal.params;
function axis(g) {
g.each(function () {
var g = axis.g = d3.select(this);
var scale0 = this.__chart__ || internal.scale,
scale1 = this.__chart__ = internal.copyScale();
var ticks = internal.tickValues ? internal.tickValues : internal.generateTicks(scale1),
tick = g.selectAll(".tick").data(ticks, scale1),
tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", 1e-6),
// MEMO: No exit transition. The reason is this transition affects max tick width calculation because old tick will be included in the ticks.
tickExit = tick.exit().remove(),
tickUpdate = internal.transitionise(tick).style("opacity", 1),
tickTransform, tickX, tickY;
if (params.isCategory) {
internal.tickOffset = Math.ceil((scale1(1) - scale1(0)) / 2);
tickX = internal.tickCentered ? 0 : internal.tickOffset;
tickY = internal.tickCentered ? internal.tickOffset : 0;
} else {
internal.tickOffset = tickX = 0;
}
tickEnter.append("line");
tickEnter.append("text");
internal.updateRange();
internal.updateTickLength();
internal.updateTickTextCharSize(g.select('.tick'));
var lineUpdate = tickUpdate.select("line"),
textUpdate = tickUpdate.select("text"),
tspanUpdate = tick.select("text").selectAll('tspan')
.data(function (d, i) { return internal.tspanData(d, i, ticks, scale1); });
tspanUpdate.enter().append('tspan');
tspanUpdate.exit().remove();
tspanUpdate.text(function (d) { return d.splitted; });
var path = g.selectAll(".domain").data([ 0 ]),
pathUpdate = (path.enter().append("path").attr("class", "domain"), internal.transitionise(path));
// TODO: each attr should be one function and change its behavior by internal.orient, probably
switch (internal.orient) {
case "bottom":
{
tickTransform = internal.axisX;
lineUpdate.attr("x1", tickX)
.attr("x2", tickX)
.attr("y2", function (d, i) { return internal.lineY2(d, i); });
textUpdate.attr("x", 0)
.attr("y", function (d, i) { return internal.textY(d, i); })
.attr("transform", function (d, i) { return internal.textTransform(d, i); })
.style("text-anchor", function (d, i) { return internal.textTextAnchor(d, i); });
tspanUpdate.attr('x', 0)
.attr("dy", function (d, i) { return internal.tspanDy(d, i); })
.attr('dx', function (d, i) { return internal.tspanDx(d, i); });
pathUpdate.attr("d", "M" + internal.range[0] + "," + internal.outerTickSize + "V0H" + internal.range[1] + "V" + internal.outerTickSize);
break;
}
case "top":
{
// TODO: rotated tick text
tickTransform = internal.axisX;
lineUpdate.attr("x2", 0)
.attr("y2", -internal.innerTickSize);
textUpdate.attr("x", 0)
.attr("y", -internal.tickLength)
.style("text-anchor", "middle");
tspanUpdate.attr('x', 0)
.attr("dy", "0em");
pathUpdate.attr("d", "M" + internal.range[0] + "," + -internal.outerTickSize + "V0H" + internal.range[1] + "V" + -internal.outerTickSize);
break;
}
case "left":
{
tickTransform = internal.axisY;
lineUpdate.attr("x2", -internal.innerTickSize)
.attr("y1", tickY)
.attr("y2", tickY);
textUpdate.attr("x", -internal.tickLength)
.attr("y", internal.tickOffset)
.style("text-anchor", "end");
tspanUpdate.attr('x', -internal.tickLength)
.attr("dy", function (d, i) { return internal.tspanDy(d, i); });
pathUpdate.attr("d", "M" + -internal.outerTickSize + "," + internal.range[0] + "H0V" + internal.range[1] + "H" + -internal.outerTickSize);
break;
}
case "right":
{
tickTransform = internal.axisY;
lineUpdate.attr("x2", internal.innerTickSize)
.attr("y2", 0);
textUpdate.attr("x", internal.tickLength)
.attr("y", 0)
.style("text-anchor", "start");
tspanUpdate.attr('x', internal.tickLength)
.attr("dy", function (d, i) { return internal.tspanDy(d, i); });
pathUpdate.attr("d", "M" + internal.outerTickSize + "," + internal.range[0] + "H0V" + internal.range[1] + "H" + internal.outerTickSize);
break;
}
}
if (scale1.rangeBand) {
var x = scale1, dx = x.rangeBand() / 2;
scale0 = scale1 = function (d) {
return x(d) + dx;
};
} else if (scale0.rangeBand) {
scale0 = scale1;
} else {
tickExit.call(tickTransform, scale1, internal.tickOffset);
}
tickEnter.call(tickTransform, scale0, internal.tickOffset);
tickUpdate.call(tickTransform, scale1, internal.tickOffset);
});
}
axis.scale = function (x) {
if (!arguments.length) { return internal.scale; }
internal.scale = x;
return axis;
};
axis.orient = function (x) {
if (!arguments.length) { return internal.orient; }
internal.orient = x in {top: 1, right: 1, bottom: 1, left: 1} ? x + "" : "bottom";
return axis;
};
axis.tickFormat = function (format) {
if (!arguments.length) { return internal.tickFormat; }
internal.tickFormat = format;
return axis;
};
axis.tickCentered = function (isCentered) {
if (!arguments.length) { return internal.tickCentered; }
internal.tickCentered = isCentered;
return axis;
};
axis.tickOffset = function () {
return internal.tickOffset;
};
axis.tickInterval = function () {
var interval, length;
if (params.isCategory) {
interval = internal.tickOffset * 2;
}
else {
length = axis.g.select('path.domain').node().getTotalLength() - internal.outerTickSize * 2;
interval = length / axis.g.selectAll('line').size();
}
return interval === Infinity ? 0 : interval;
};
axis.ticks = function () {
if (!arguments.length) { return internal.tickArguments; }
internal.tickArguments = arguments;
return axis;
};
axis.tickCulling = function (culling) {
if (!arguments.length) { return internal.tickCulling; }
internal.tickCulling = culling;
return axis;
};
axis.tickValues = function (x) {
if (typeof x === 'function') {
internal.tickValues = function () {
return x(internal.scale.domain());
};
}
else {
if (!arguments.length) { return internal.tickValues; }
internal.tickValues = x;
}
return axis;
};
return axis;
};
export default class Axis extends Component {
constructor (owner) {
var fn = {
fn: c3_axis_fn,
internal: {
fn: c3_axis_internal_fn
}
};
super(owner, 'axis', fn);
this.d3 = owner.d3;
this.internal = AxisInternal;
}
}
c3_axis_fn = Axis.prototype;
c3_axis_fn.init = function init() {
var $$ = this.owner, config = $$.config, main = $$.main;
$$.axes.x = main.append("g")
.attr("class", CLASS.axis + ' ' + CLASS.axisX)
.attr("clip-path", $$.clipPathForXAxis)
.attr("transform", $$.getTranslate('x'))
.style("visibility", config.axis_x_show ? 'visible' : 'hidden');
$$.axes.x.append("text")
.attr("class", CLASS.axisXLabel)
.attr("transform", config.axis_rotated ? "rotate(-90)" : "")
.style("text-anchor", this.textAnchorForXAxisLabel.bind(this));
$$.axes.y = main.append("g")
.attr("class", CLASS.axis + ' ' + CLASS.axisY)
.attr("clip-path", config.axis_y_inner ? "" : $$.clipPathForYAxis)
.attr("transform", $$.getTranslate('y'))
.style("visibility", config.axis_y_show ? 'visible' : 'hidden');
$$.axes.y.append("text")
.attr("class", CLASS.axisYLabel)
.attr("transform", config.axis_rotated ? "" : "rotate(-90)")
.style("text-anchor", this.textAnchorForYAxisLabel.bind(this));
$$.axes.y2 = main.append("g")
.attr("class", CLASS.axis + ' ' + CLASS.axisY2)
// clip-path?
.attr("transform", $$.getTranslate('y2'))
.style("visibility", config.axis_y2_show ? 'visible' : 'hidden');
$$.axes.y2.append("text")
.attr("class", CLASS.axisY2Label)
.attr("transform", config.axis_rotated ? "" : "rotate(-90)")
.style("text-anchor", this.textAnchorForY2AxisLabel.bind(this));
};
c3_axis_fn.getXAxis = function getXAxis(scale, orient, tickFormat, tickValues, withOuterTick, withoutTransition, withoutRotateTickText) {
var $$ = this.owner, config = $$.config,
axisParams = {
isCategory: $$.isCategorized(),
withOuterTick: withOuterTick,
tickMultiline: config.axis_x_tick_multiline,
tickWidth: config.axis_x_tick_width,
tickTextRotate: withoutRotateTickText ? 0 : config.axis_x_tick_rotate,
withoutTransition: withoutTransition,
},
axis = new this.internal(this, axisParams).axis.scale(scale).orient(orient);
if ($$.isTimeSeries() && tickValues && typeof tickValues !== "function") {
tickValues = tickValues.map(function (v) { return $$.parseDate(v); });
}
// Set tick
axis.tickFormat(tickFormat).tickValues(tickValues);
if ($$.isCategorized()) {
axis.tickCentered(config.axis_x_tick_centered);
if (isEmpty(config.axis_x_tick_culling)) {
config.axis_x_tick_culling = false;
}
}
return axis;
};
c3_axis_fn.updateXAxisTickValues = function updateXAxisTickValues(targets, axis) {
var $$ = this.owner, config = $$.config, tickValues;
if (config.axis_x_tick_fit || config.axis_x_tick_count) {
tickValues = this.generateTickValues($$.mapTargetsToUniqueXs(targets), config.axis_x_tick_count, $$.isTimeSeries());
}
if (axis) {
axis.tickValues(tickValues);
} else {
$$.xAxis.tickValues(tickValues);
$$.subXAxis.tickValues(tickValues);
}
return tickValues;
};
c3_axis_fn.getYAxis = function getYAxis(scale, orient, tickFormat, tickValues, withOuterTick, withoutTransition, withoutRotateTickText) {
var $$ = this.owner, config = $$.config,
axisParams = {
withOuterTick: withOuterTick,
withoutTransition: withoutTransition,
tickTextRotate: withoutRotateTickText ? 0 : config.axis_y_tick_rotate
},
axis = new this.internal(this, axisParams).axis.scale(scale).orient(orient).tickFormat(tickFormat);
if ($$.isTimeSeriesY()) {
axis.ticks($$.d3.time[config.axis_y_tick_time_value], config.axis_y_tick_time_interval);
} else {
axis.tickValues(tickValues);
}
return axis;
};
c3_axis_fn.getId = function getId(id) {
var config = this.owner.config;
return id in config.data_axes ? config.data_axes[id] : 'y';
};
c3_axis_fn.getXAxisTickFormat = function getXAxisTickFormat() {
var $$ = this.owner, config = $$.config,
format = $$.isTimeSeries() ? $$.defaultAxisTimeFormat : $$.isCategorized() ? $$.categoryName : function (v) { return v < 0 ? v.toFixed(0) : v; };
if (config.axis_x_tick_format) {
if (isFunction(config.axis_x_tick_format)) {
format = config.axis_x_tick_format;
} else if ($$.isTimeSeries()) {
format = function (date) {
return date ? $$.axisTimeFormat(config.axis_x_tick_format)(date) : "";
};
}
}
return isFunction(format) ? function (v) { return format.call($$, v); } : format;
};
c3_axis_fn.getTickValues = function getTickValues(tickValues, axis) {
return tickValues ? tickValues : axis ? axis.tickValues() : undefined;
};
c3_axis_fn.getXAxisTickValues = function getXAxisTickValues() {
return this.getTickValues(this.owner.config.axis_x_tick_values, this.owner.xAxis);
};
c3_axis_fn.getYAxisTickValues = function getYAxisTickValues() {
return this.getTickValues(this.owner.config.axis_y_tick_values, this.owner.yAxis);
};
c3_axis_fn.getY2AxisTickValues = function getY2AxisTickValues() {
return this.getTickValues(this.owner.config.axis_y2_tick_values, this.owner.y2Axis);
};
c3_axis_fn.getLabelOptionByAxisId = function getLabelOptionByAxisId(axisId) {
var $$ = this.owner, config = $$.config, option;
if (axisId === 'y') {
option = config.axis_y_label;
} else if (axisId === 'y2') {
option = config.axis_y2_label;
} else if (axisId === 'x') {
option = config.axis_x_label;
}
return option;
};
c3_axis_fn.getLabelText = function getLabelText(axisId) {
var option = this.getLabelOptionByAxisId(axisId);
return isString(option) ? option : option ? option.text : null;
};
c3_axis_fn.setLabelText = function setLabelText(axisId, text) {
var $$ = this.owner, config = $$.config,
option = this.getLabelOptionByAxisId(axisId);
if (isString(option)) {
if (axisId === 'y') {
config.axis_y_label = text;
} else if (axisId === 'y2') {
config.axis_y2_label = text;
} else if (axisId === 'x') {
config.axis_x_label = text;
}
} else if (option) {
option.text = text;
}
};
c3_axis_fn.getLabelPosition = function getLabelPosition(axisId, defaultPosition) {
var option = this.getLabelOptionByAxisId(axisId),
position = (option && typeof option === 'object' && option.position) ? option.position : defaultPosition;
return {
isInner: position.indexOf('inner') >= 0,
isOuter: position.indexOf('outer') >= 0,
isLeft: position.indexOf('left') >= 0,
isCenter: position.indexOf('center') >= 0,
isRight: position.indexOf('right') >= 0,
isTop: position.indexOf('top') >= 0,
isMiddle: position.indexOf('middle') >= 0,
isBottom: position.indexOf('bottom') >= 0
};
};
c3_axis_fn.getXAxisLabelPosition = function getXAxisLabelPosition() {
return this.getLabelPosition('x', this.owner.config.axis_rotated ? 'inner-top' : 'inner-right');
};
c3_axis_fn.getYAxisLabelPosition = function getYAxisLabelPosition() {
return this.getLabelPosition('y', this.owner.config.axis_rotated ? 'inner-right' : 'inner-top');
};
c3_axis_fn.getY2AxisLabelPosition = function getY2AxisLabelPosition() {
return this.getLabelPosition('y2', this.owner.config.axis_rotated ? 'inner-right' : 'inner-top');
};
c3_axis_fn.getLabelPositionById = function getLabelPositionById(id) {
return id === 'y2' ? this.getY2AxisLabelPosition() : id === 'y' ? this.getYAxisLabelPosition() : this.getXAxisLabelPosition();
};
c3_axis_fn.textForXAxisLabel = function textForXAxisLabel() {
return this.getLabelText('x');
};
c3_axis_fn.textForYAxisLabel = function textForYAxisLabel() {
return this.getLabelText('y');
};
c3_axis_fn.textForY2AxisLabel = function textForY2AxisLabel() {
return this.getLabelText('y2');
};
c3_axis_fn.xForAxisLabel = function xForAxisLabel(forHorizontal, position) {
var $$ = this.owner;
if (forHorizontal) {
return position.isLeft ? 0 : position.isCenter ? $$.width / 2 : $$.width;
} else {
return position.isBottom ? -$$.height : position.isMiddle ? -$$.height / 2 : 0;
}
};
c3_axis_fn.dxForAxisLabel = function dxForAxisLabel(forHorizontal, position) {
if (forHorizontal) {
return position.isLeft ? "0.5em" : position.isRight ? "-0.5em" : "0";
} else {
return position.isTop ? "-0.5em" : position.isBottom ? "0.5em" : "0";
}
};
c3_axis_fn.textAnchorForAxisLabel = function textAnchorForAxisLabel(forHorizontal, position) {
if (forHorizontal) {
return position.isLeft ? 'start' : position.isCenter ? 'middle' : 'end';
} else {
return position.isBottom ? 'start' : position.isMiddle ? 'middle' : 'end';
}
};
c3_axis_fn.xForXAxisLabel = function xForXAxisLabel() {
return this.xForAxisLabel(!this.owner.config.axis_rotated, this.getXAxisLabelPosition());
};
c3_axis_fn.xForYAxisLabel = function xForYAxisLabel() {
return this.xForAxisLabel(this.owner.config.axis_rotated, this.getYAxisLabelPosition());
};
c3_axis_fn.xForY2AxisLabel = function xForY2AxisLabel() {
return this.xForAxisLabel(this.owner.config.axis_rotated, this.getY2AxisLabelPosition());
};
c3_axis_fn.dxForXAxisLabel = function dxForXAxisLabel() {
return this.dxForAxisLabel(!this.owner.config.axis_rotated, this.getXAxisLabelPosition());
};
c3_axis_fn.dxForYAxisLabel = function dxForYAxisLabel() {
return this.dxForAxisLabel(this.owner.config.axis_rotated, this.getYAxisLabelPosition());
};
c3_axis_fn.dxForY2AxisLabel = function dxForY2AxisLabel() {
return this.dxForAxisLabel(this.owner.config.axis_rotated, this.getY2AxisLabelPosition());
};
c3_axis_fn.dyForXAxisLabel = function dyForXAxisLabel() {
var $$ = this.owner, config = $$.config,
position = this.getXAxisLabelPosition();
if (config.axis_rotated) {
return position.isInner ? "1.2em" : -25 - this.getMaxTickWidth('x');
} else {
return position.isInner ? "-0.5em" : config.axis_x_height ? config.axis_x_height - 10 : "3em";
}
};
c3_axis_fn.dyForYAxisLabel = function dyForYAxisLabel() {
var $$ = this.owner,
position = this.getYAxisLabelPosition();
if ($$.config.axis_rotated) {
return position.isInner ? "-0.5em" : "3em";
} else {
return position.isInner ? "1.2em" : -10 - ($$.config.axis_y_inner ? 0 : (this.getMaxTickWidth('y') + 10));
}
};
c3_axis_fn.dyForY2AxisLabel = function dyForY2AxisLabel() {
var $$ = this.owner,
position = this.getY2AxisLabelPosition();
if ($$.config.axis_rotated) {
return position.isInner ? "1.2em" : "-2.2em";
} else {
return position.isInner ? "-0.5em" : 15 + ($$.config.axis_y2_inner ? 0 : (this.getMaxTickWidth('y2') + 15));
}
};
c3_axis_fn.textAnchorForXAxisLabel = function textAnchorForXAxisLabel() {
var $$ = this.owner;
return this.textAnchorForAxisLabel(!$$.config.axis_rotated, this.getXAxisLabelPosition());
};
c3_axis_fn.textAnchorForYAxisLabel = function textAnchorForYAxisLabel() {
var $$ = this.owner;
return this.textAnchorForAxisLabel($$.config.axis_rotated, this.getYAxisLabelPosition());
};
c3_axis_fn.textAnchorForY2AxisLabel = function textAnchorForY2AxisLabel() {
var $$ = this.owner;
return this.textAnchorForAxisLabel($$.config.axis_rotated, this.getY2AxisLabelPosition());
};
c3_axis_fn.getMaxTickWidth = function getMaxTickWidth(id, withoutRecompute) {
var $$ = this.owner, config = $$.config,
maxWidth = 0, targetsToShow, scale, axis, dummy, svg;
if (withoutRecompute && $$.currentMaxTickWidths[id]) {
return $$.currentMaxTickWidths[id];
}
if ($$.svg) {
targetsToShow = $$.filterTargetsToShow($$.data.targets);
if (id === 'y') {
scale = $$.y.copy().domain($$.getYDomain(targetsToShow, 'y'));
axis = this.getYAxis(scale, $$.yOrient, config.axis_y_tick_format, $$.yAxisTickValues, false, true, true);
} else if (id === 'y2') {
scale = $$.y2.copy().domain($$.getYDomain(targetsToShow, 'y2'));
axis = this.getYAxis(scale, $$.y2Orient, config.axis_y2_tick_format, $$.y2AxisTickValues, false, true, true);
} else {
scale = $$.x.copy().domain($$.getXDomain(targetsToShow));
axis = this.getXAxis(scale, $$.xOrient, $$.xAxisTickFormat, $$.xAxisTickValues, false, true, true);
this.updateXAxisTickValues(targetsToShow, axis);
}
dummy = $$.d3.select('body').append('div').classed('c3', true);
svg = dummy.append("svg").style('visibility', 'hidden').style('position', 'fixed').style('top', 0).style('left', 0),
svg.append('g').call(axis).each(function () {
$$.d3.select(this).selectAll('text').each(function () {
var box = this.getBoundingClientRect();
if (maxWidth < box.width) { maxWidth = box.width; }
});
dummy.remove();
});
}
$$.currentMaxTickWidths[id] = maxWidth <= 0 ? $$.currentMaxTickWidths[id] : maxWidth;
return $$.currentMaxTickWidths[id];
};
c3_axis_fn.updateLabels = function updateLabels(withTransition) {
var $$ = this.owner;
var axisXLabel = $$.main.select('.' + CLASS.axisX + ' .' + CLASS.axisXLabel),
axisYLabel = $$.main.select('.' + CLASS.axisY + ' .' + CLASS.axisYLabel),
axisY2Label = $$.main.select('.' + CLASS.axisY2 + ' .' + CLASS.axisY2Label);
(withTransition ? axisXLabel.transition() : axisXLabel)
.attr("x", this.xForXAxisLabel.bind(this))
.attr("dx", this.dxForXAxisLabel.bind(this))
.attr("dy", this.dyForXAxisLabel.bind(this))
.text(this.textForXAxisLabel.bind(this));
(withTransition ? axisYLabel.transition() : axisYLabel)
.attr("x", this.xForYAxisLabel.bind(this))
.attr("dx", this.dxForYAxisLabel.bind(this))
.attr("dy", this.dyForYAxisLabel.bind(this))
.text(this.textForYAxisLabel.bind(this));
(withTransition ? axisY2Label.transition() : axisY2Label)
.attr("x", this.xForY2AxisLabel.bind(this))
.attr("dx", this.dxForY2AxisLabel.bind(this))
.attr("dy", this.dyForY2AxisLabel.bind(this))
.text(this.textForY2AxisLabel.bind(this));
};
c3_axis_fn.getPadding = function getPadding(padding, key, defaultValue, domainLength) {
var p = typeof padding === 'number' ? padding : padding[key];
if (!isValue(p)) {
return defaultValue;
}
if (padding.unit === 'ratio') {
return padding[key] * domainLength;
}
// assume padding is pixels if unit is not specified
return this.convertPixelsToAxisPadding(p, domainLength);
};
c3_axis_fn.convertPixelsToAxisPadding = function convertPixelsToAxisPadding(pixels, domainLength) {
var $$ = this.owner,
length = $$.config.axis_rotated ? $$.width : $$.height;
return domainLength * (pixels / length);
};
c3_axis_fn.generateTickValues = function generateTickValues(values, tickCount, forTimeSeries) {
var tickValues = values, targetCount, start, end, count, interval, i, tickValue;
if (tickCount) {
targetCount = isFunction(tickCount) ? tickCount() : tickCount;
// compute ticks according to tickCount
if (targetCount === 1) {
tickValues = [values[0]];
} else if (targetCount === 2) {
tickValues = [values[0], values[values.length - 1]];
} else if (targetCount > 2) {
count = targetCount - 2;
start = values[0];
end = values[values.length - 1];
interval = (end - start) / (count + 1);
// re-construct unique values
tickValues = [start];
for (i = 0; i < count; i++) {
tickValue = +start + interval * (i + 1);
tickValues.push(forTimeSeries ? new Date(tickValue) : tickValue);
}
tickValues.push(end);
}
}
if (!forTimeSeries) { tickValues = tickValues.sort(function (a, b) { return a - b; }); }
return tickValues;
};
c3_axis_fn.generateTransitions = function generateTransitions(duration) {
var $$ = this.owner, axes = $$.axes;
return {
axisX: duration ? axes.x.transition().duration(duration) : axes.x,
axisY: duration ? axes.y.transition().duration(duration) : axes.y,
axisY2: duration ? axes.y2.transition().duration(duration) : axes.y2,
axisSubX: duration ? axes.subx.transition().duration(duration) : axes.subx
};
};
c3_axis_fn.redraw = function redraw(transitions, isHidden) {
var $$ = this.owner;
$$.axes.x.style("opacity", isHidden ? 0 : 1);
$$.axes.y.style("opacity", isHidden ? 0 : 1);
$$.axes.y2.style("opacity", isHidden ? 0 : 1);
$$.axes.subx.style("opacity", isHidden ? 0 : 1);
transitions.axisX.call($$.xAxis);
transitions.axisY.call($$.yAxis);
transitions.axisY2.call($$.y2Axis);
transitions.axisSubX.call($$.subXAxis);
};