Subversion-Projekte lars-tiefland.cienc

/*! nouislider - 8.0.2 - 2015-07-06 13:22:09 */

/*jslint browser: true */

/*jslint white: true */

(function (factory) {

    if ( typeof define === 'function' && define.amd ) {

        // AMD. Register as an anonymous module.

        define([], factory);

    } else if ( typeof exports === 'object' ) {

        var fs = require('fs');

        // Node/CommonJS

        module.exports = factory();

        module.exports.css = function () {

            return fs.readFileSync(__dirname + '/nouislider.min.css', 'utf8');

        };

    } else {

        // Browser globals

        window.noUiSlider = factory();

    }

}(function( ){

	'use strict';

	// Removes duplicates from an array.

	function unique(array) {

		return array.filter(function(a){

			return !this[a] ? this[a] = true : false;

		}, {});

	}

	// Round a value to the closest 'to'.

	function closest ( value, to ) {

		return Math.round(value / to) * to;

	}

	// Current position of an element relative to the document.

	function offset ( elem ) {

	var rect = elem.getBoundingClientRect(),

		doc = elem.ownerDocument,

		win = doc.defaultView || doc.parentWindow,

		docElem = doc.documentElement,

		xOff = win.pageXOffset;

		// getBoundingClientRect contains left scroll in Chrome on Android.

		// I haven't found a feature detection that proves this. Worst case

		// scenario on mis-match: the 'tap' feature on horizontal sliders breaks.

		if ( /webkit.*Chrome.*Mobile/i.test(navigator.userAgent) ) {

			xOff = 0;

		}

		return {

			top: rect.top + win.pageYOffset - docElem.clientTop,

			left: rect.left + xOff - docElem.clientLeft

		};

	}

	// Checks whether a value is numerical.

	function isNumeric ( a ) {

		return typeof a === 'number' && !isNaN( a ) && isFinite( a );

	}

	// Rounds a number to 7 supported decimals.

	function accurateNumber( number ) {

		var p = Math.pow(10, 7);

		return Number((Math.round(number*p)/p).toFixed(7));

	}

	// Sets a class and removes it after [duration] ms.

	function addClassFor ( element, className, duration ) {

		addClass(element, className);

		setTimeout(function(){

			removeClass(element, className);

		}, duration);

	}

	// Limits a value to 0 - 100

	function limit ( a ) {

		return Math.max(Math.min(a, 100), 0);

	}

	// Wraps a variable as an array, if it isn't one yet.

	function asArray ( a ) {

		return Array.isArray(a) ? a : [a];

	}

	// Counts decimals

	function countDecimals ( numStr ) {

		var pieces = numStr.split(".");

		return pieces.length > 1 ? pieces[1].length : 0;

	}

	// http://youmightnotneedjquery.com/#add_class

	function addClass ( el, className ) {

		if ( el.classList ) {

			el.classList.add(className);

		} else {

			el.className += ' ' + className;

		}

	}

	// http://youmightnotneedjquery.com/#remove_class

	function removeClass ( el, className ) {

		if ( el.classList ) {

			el.classList.remove(className);

		} else {

			el.className = el.className.replace(new RegExp('(^|\\b)' + className.split(' ').join('|') + '(\\b|$)', 'gi'), ' ');

		}

	}

	// http://youmightnotneedjquery.com/#has_class

	function hasClass ( el, className ) {

		if ( el.classList ) {

			el.classList.contains(className);

		} else {

			new RegExp('(^| )' + className + '( |$)', 'gi').test(el.className);

		}

	}

	var

	// Determine the events to bind. IE11 implements pointerEvents without

	// a prefix, which breaks compatibility with the IE10 implementation.

	/** @const */

	actions = window.navigator.pointerEnabled ? {

		start: 'pointerdown',

		move: 'pointermove',

		end: 'pointerup'

	} : window.navigator.msPointerEnabled ? {

		start: 'MSPointerDown',

		move: 'MSPointerMove',

		end: 'MSPointerUp'

	} : {

		start: 'mousedown touchstart',

		move: 'mousemove touchmove',

		end: 'mouseup touchend'

	},

	// Re-usable list of classes;

	/** @const */

	Classes = [

/*  0 */  'noUi-target'

/*  1 */ ,'noUi-base'

/*  2 */ ,'noUi-origin'

/*  3 */ ,'noUi-handle'

/*  4 */ ,'noUi-horizontal'

/*  5 */ ,'noUi-vertical'

/*  6 */ ,'noUi-background'

/*  7 */ ,'noUi-connect'

/*  8 */ ,'noUi-ltr'

/*  9 */ ,'noUi-rtl'

/* 10 */ ,'noUi-dragable'

/* 11 */ ,''

/* 12 */ ,'noUi-state-drag'

/* 13 */ ,''

/* 14 */ ,'noUi-state-tap'

/* 15 */ ,'noUi-active'

/* 16 */ ,''

/* 17 */ ,'noUi-stacking'

	];

// Value calculation

	// Determine the size of a sub-range in relation to a full range.

	function subRangeRatio ( pa, pb ) {

		return (100 / (pb - pa));

	}

	// (percentage) How many percent is this value of this range?

	function fromPercentage ( range, value ) {

		return (value * 100) / ( range[1] - range[0] );

	}

	// (percentage) Where is this value on this range?

	function toPercentage ( range, value ) {

		return fromPercentage( range, range[0] < 0 ?

			value + Math.abs(range[0]) :

				value - range[0] );

	}

	// (value) How much is this percentage on this range?

	function isPercentage ( range, value ) {

		return ((value * ( range[1] - range[0] )) / 100) + range[0];

	}

// Range conversion

	function getJ ( value, arr ) {

		var j = 1;

		while ( value >= arr[j] ){

			j += 1;

		}

		return j;

	}

	// (percentage) Input a value, find where, on a scale of 0-100, it applies.

	function toStepping ( xVal, xPct, value ) {

		if ( value >= xVal.slice(-1)[0] ){

			return 100;

		}

		var j = getJ( value, xVal ), va, vb, pa, pb;

		va = xVal[j-1];

		vb = xVal[j];

		pa = xPct[j-1];

		pb = xPct[j];

		return pa + (toPercentage([va, vb], value) / subRangeRatio (pa, pb));

	}

	// (value) Input a percentage, find where it is on the specified range.

	function fromStepping ( xVal, xPct, value ) {

		// There is no range group that fits 100

		if ( value >= 100 ){

			return xVal.slice(-1)[0];

		}

		var j = getJ( value, xPct ), va, vb, pa, pb;

		va = xVal[j-1];

		vb = xVal[j];

		pa = xPct[j-1];

		pb = xPct[j];

		return isPercentage([va, vb], (value - pa) * subRangeRatio (pa, pb));

	}

	// (percentage) Get the step that applies at a certain value.

	function getStep ( xPct, xSteps, snap, value ) {

		if ( value === 100 ) {

			return value;

		}

		var j = getJ( value, xPct ), a, b;

		// If 'snap' is set, steps are used as fixed points on the slider.

		if ( snap ) {

			a = xPct[j-1];

			b = xPct[j];

			// Find the closest position, a or b.

			if ((value - a) > ((b-a)/2)){

				return b;

			}

			return a;

		}

		if ( !xSteps[j-1] ){

			return value;

		}

		return xPct[j-1] + closest(

			value - xPct[j-1],

			xSteps[j-1]

		);

	}

// Entry parsing

	function handleEntryPoint ( index, value, that ) {

		var percentage;

		// Wrap numerical input in an array.

		if ( typeof value === "number" ) {

			value = [value];

		}

		// Reject any invalid input, by testing whether value is an array.

		if ( Object.prototype.toString.call( value ) !== '[object Array]' ){

			throw new Error("noUiSlider: 'range' contains invalid value.");

		}

		// Covert min/max syntax to 0 and 100.

		if ( index === 'min' ) {

			percentage = 0;

		} else if ( index === 'max' ) {

			percentage = 100;

		} else {

			percentage = parseFloat( index );

		}

		// Check for correct input.

		if ( !isNumeric( percentage ) || !isNumeric( value[0] ) ) {

			throw new Error("noUiSlider: 'range' value isn't numeric.");

		}

		// Store values.

		that.xPct.push( percentage );

		that.xVal.push( value[0] );

		// NaN will evaluate to false too, but to keep

		// logging clear, set step explicitly. Make sure

		// not to override the 'step' setting with false.

		if ( !percentage ) {

			if ( !isNaN( value[1] ) ) {

				that.xSteps[0] = value[1];

			}

		} else {

			that.xSteps.push( isNaN(value[1]) ? false : value[1] );

		}

	}

	function handleStepPoint ( i, n, that ) {

		// Ignore 'false' stepping.

		if ( !n ) {

			return true;

		}

		// Factor to range ratio

		that.xSteps[i] = fromPercentage([

			 that.xVal[i]

			,that.xVal[i+1]

		], n) / subRangeRatio (

			that.xPct[i],

			that.xPct[i+1] );

	}

// Interface

	// The interface to Spectrum handles all direction-based

	// conversions, so the above values are unaware.

	function Spectrum ( entry, snap, direction, singleStep ) {

		this.xPct = [];

		this.xVal = [];

		this.xSteps = [ singleStep || false ];

		this.xNumSteps = [ false ];

		this.snap = snap;

		this.direction = direction;

		var index, ordered = [ /* [0, 'min'], [1, '50%'], [2, 'max'] */ ];

		// Map the object keys to an array.

		for ( index in entry ) {

			if ( entry.hasOwnProperty(index) ) {

				ordered.push([entry[index], index]);

			}

		}

		// Sort all entries by value (numeric sort).

		ordered.sort(function(a, b) { return a[0] - b[0]; });

		// Convert all entries to subranges.

		for ( index = 0; index < ordered.length; index++ ) {

			handleEntryPoint(ordered[index][1], ordered[index][0], this);

		}

		// Store the actual step values.

		// xSteps is sorted in the same order as xPct and xVal.

		this.xNumSteps = this.xSteps.slice(0);

		// Convert all numeric steps to the percentage of the subrange they represent.

		for ( index = 0; index < this.xNumSteps.length; index++ ) {

			handleStepPoint(index, this.xNumSteps[index], this);

		}

	}

	Spectrum.prototype.getMargin = function ( value ) {

		return this.xPct.length === 2 ? fromPercentage(this.xVal, value) : false;

	};

	Spectrum.prototype.toStepping = function ( value ) {

		value = toStepping( this.xVal, this.xPct, value );

		// Invert the value if this is a right-to-left slider.

		if ( this.direction ) {

			value = 100 - value;

		}

		return value;

	};

	Spectrum.prototype.fromStepping = function ( value ) {

		// Invert the value if this is a right-to-left slider.

		if ( this.direction ) {

			value = 100 - value;

		}

		return accurateNumber(fromStepping( this.xVal, this.xPct, value ));

	};

	Spectrum.prototype.getStep = function ( value ) {

		// Find the proper step for rtl sliders by search in inverse direction.

		// Fixes issue #262.

		if ( this.direction ) {

			value = 100 - value;

		}

		value = getStep(this.xPct, this.xSteps, this.snap, value );

		if ( this.direction ) {

			value = 100 - value;

		}

		return value;

	};

	Spectrum.prototype.getApplicableStep = function ( value ) {

		// If the value is 100%, return the negative step twice.

		var j = getJ(value, this.xPct), offset = value === 100 ? 2 : 1;

		return [this.xNumSteps[j-2], this.xVal[j-offset], this.xNumSteps[j-offset]];

	};

	// Outside testing

	Spectrum.prototype.convert = function ( value ) {

		return this.getStep(this.toStepping(value));

	};

/*	Every input option is tested and parsed. This'll prevent

	endless validation in internal methods. These tests are

	structured with an item for every option available. An

	option can be marked as required by setting the 'r' flag.

	The testing function is provided with three arguments:

		- The provided value for the option;

		- A reference to the options object;

		- The name for the option;

	The testing function returns false when an error is detected,

	or true when everything is OK. It can also modify the option

	object, to make sure all values can be correctly looped elsewhere. */

	var defaultFormatter = { 'to': function( value ){

		return value.toFixed(2);

	}, 'from': Number };

	function testStep ( parsed, entry ) {

		if ( !isNumeric( entry ) ) {

			throw new Error("noUiSlider: 'step' is not numeric.");

		}

		// The step option can still be used to set stepping

		// for linear sliders. Overwritten if set in 'range'.

		parsed.singleStep = entry;

	}

	function testRange ( parsed, entry ) {

		// Filter incorrect input.

		if ( typeof entry !== 'object' || Array.isArray(entry) ) {

			throw new Error("noUiSlider: 'range' is not an object.");

		}

		// Catch missing start or end.

		if ( entry.min === undefined || entry.max === undefined ) {

			throw new Error("noUiSlider: Missing 'min' or 'max' in 'range'.");

		}

		parsed.spectrum = new Spectrum(entry, parsed.snap, parsed.dir, parsed.singleStep);

	}

	function testStart ( parsed, entry ) {

		entry = asArray(entry);

		// Validate input. Values aren't tested, as the public .val method

		// will always provide a valid location.

		if ( !Array.isArray( entry ) || !entry.length || entry.length > 2 ) {

			throw new Error("noUiSlider: 'start' option is incorrect.");

		}

		// Store the number of handles.

		parsed.handles = entry.length;

		// When the slider is initialized, the .val method will

		// be called with the start options.

		parsed.start = entry;

	}

	function testSnap ( parsed, entry ) {

		// Enforce 100% stepping within subranges.

		parsed.snap = entry;

		if ( typeof entry !== 'boolean' ){

			throw new Error("noUiSlider: 'snap' option must be a boolean.");

		}

	}

	function testAnimate ( parsed, entry ) {

		// Enforce 100% stepping within subranges.

		parsed.animate = entry;

		if ( typeof entry !== 'boolean' ){

			throw new Error("noUiSlider: 'animate' option must be a boolean.");

		}

	}

	function testConnect ( parsed, entry ) {

		if ( entry === 'lower' && parsed.handles === 1 ) {

			parsed.connect = 1;

		} else if ( entry === 'upper' && parsed.handles === 1 ) {

			parsed.connect = 2;

		} else if ( entry === true && parsed.handles === 2 ) {

			parsed.connect = 3;

		} else if ( entry === false ) {

			parsed.connect = 0;

		} else {

			throw new Error("noUiSlider: 'connect' option doesn't match handle count.");

		}

	}

	function testOrientation ( parsed, entry ) {

		// Set orientation to an a numerical value for easy

		// array selection.

		switch ( entry ){

		  case 'horizontal':

			parsed.ort = 0;

			break;

		  case 'vertical':

			parsed.ort = 1;

			break;

		  default:

			throw new Error("noUiSlider: 'orientation' option is invalid.");

		}

	}

	function testMargin ( parsed, entry ) {

		if ( !isNumeric(entry) ){

			throw new Error("noUiSlider: 'margin' option must be numeric.");

		}

		parsed.margin = parsed.spectrum.getMargin(entry);

		if ( !parsed.margin ) {

			throw new Error("noUiSlider: 'margin' option is only supported on linear sliders.");

		}

	}

	function testLimit ( parsed, entry ) {

		if ( !isNumeric(entry) ){

			throw new Error("noUiSlider: 'limit' option must be numeric.");

		}

		parsed.limit = parsed.spectrum.getMargin(entry);

		if ( !parsed.limit ) {

			throw new Error("noUiSlider: 'limit' option is only supported on linear sliders.");

		}

	}

	function testDirection ( parsed, entry ) {

		// Set direction as a numerical value for easy parsing.

		// Invert connection for RTL sliders, so that the proper

		// handles get the connect/background classes.

		switch ( entry ) {

		  case 'ltr':

			parsed.dir = 0;

			break;

		  case 'rtl':

			parsed.dir = 1;

			parsed.connect = [0,2,1,3][parsed.connect];

			break;

		  default:

			throw new Error("noUiSlider: 'direction' option was not recognized.");

		}

	}

	function testBehaviour ( parsed, entry ) {

		// Make sure the input is a string.

		if ( typeof entry !== 'string' ) {

			throw new Error("noUiSlider: 'behaviour' must be a string containing options.");

		}

		// Check if the string contains any keywords.

		// None are required.

		var tap = entry.indexOf('tap') >= 0,

			drag = entry.indexOf('drag') >= 0,

			fixed = entry.indexOf('fixed') >= 0,

			snap = entry.indexOf('snap') >= 0;

		parsed.events = {

			tap: tap || snap,

			drag: drag,

			fixed: fixed,

			snap: snap

		};

	}

	function testFormat ( parsed, entry ) {

		parsed.format = entry;

		// Any object with a to and from method is supported.

		if ( typeof entry.to === 'function' && typeof entry.from === 'function' ) {

			return true;

		}

		throw new Error( "noUiSlider: 'format' requires 'to' and 'from' methods.");

	}

	// Test all developer settings and parse to assumption-safe values.

	function testOptions ( options ) {

		var parsed = {

			margin: 0,

			limit: 0,

			animate: true,

			format: defaultFormatter

		}, tests;

		// Tests are executed in the order they are presented here.

		tests = {

			'step': { r: false, t: testStep },

			'start': { r: true, t: testStart },

			'connect': { r: true, t: testConnect },

			'direction': { r: true, t: testDirection },

			'snap': { r: false, t: testSnap },

			'animate': { r: false, t: testAnimate },

			'range': { r: true, t: testRange },

			'orientation': { r: false, t: testOrientation },

			'margin': { r: false, t: testMargin },

			'limit': { r: false, t: testLimit },

			'behaviour': { r: true, t: testBehaviour },

			'format': { r: false, t: testFormat }

		};

		var defaults = {

			'connect': false,

			'direction': 'ltr',

			'behaviour': 'tap',

			'orientation': 'horizontal'

		};

		// Set defaults where applicable.

		Object.keys(defaults).forEach(function ( name ) {

			if ( options[name] === undefined ) {

				options[name] = defaults[name];

			}

		});

		// Run all options through a testing mechanism to ensure correct

		// input. It should be noted that options might get modified to

		// be handled properly. E.g. wrapping integers in arrays.

		Object.keys(tests).forEach(function( name ){

			var test = tests[name];

			// If the option isn't set, but it is required, throw an error.

			if ( options[name] === undefined ) {

				if ( test.r ) {

					throw new Error("noUiSlider: '" + name + "' is required.");

				}

				return true;

			}

			test.t( parsed, options[name] );

		});

		// Forward pips options

		parsed.pips = options.pips;

		// Pre-define the styles.

		parsed.style = parsed.ort ? 'top' : 'left';

		return parsed;

	}

	// Delimit proposed values for handle positions.

	function getPositions ( a, b, delimit ) {

		// Add movement to current position.

		var c = a + b[0], d = a + b[1];

		// Only alter the other position on drag,

		// not on standard sliding.

		if ( delimit ) {

			if ( c < 0 ) {

				d += Math.abs(c);

			}

			if ( d > 100 ) {

				c -= ( d - 100 );

			}

			// Limit values to 0 and 100.

			return [limit(c), limit(d)];

		}

		return [c,d];

	}

	// Provide a clean event with standardized offset values.

	function fixEvent ( e ) {

		// Prevent scrolling and panning on touch events, while

		// attempting to slide. The tap event also depends on this.

		e.preventDefault();

		// Filter the event to register the type, which can be

		// touch, mouse or pointer. Offset changes need to be

		// made on an event specific basis.

		var touch = e.type.indexOf('touch') === 0,

			mouse = e.type.indexOf('mouse') === 0,

			pointer = e.type.indexOf('pointer') === 0,

			x,y, event = e;

		// IE10 implemented pointer events with a prefix;

		if ( e.type.indexOf('MSPointer') === 0 ) {

			pointer = true;

		}

		if ( touch ) {

			// noUiSlider supports one movement at a time,

			// so we can select the first 'changedTouch'.

			x = e.changedTouches[0].pageX;

			y = e.changedTouches[0].pageY;

		}

		if ( mouse || pointer ) {

			x = e.clientX + window.pageXOffset;

			y = e.clientY + window.pageYOffset;

		}

		event.points = [x, y];

		event.cursor = mouse || pointer; // Fix #435

		return event;

	}

	// Append a handle to the base.

	function addHandle ( direction, index ) {

		var origin = document.createElement('div'),

			handle = document.createElement('div'),

			additions = [ '-lower', '-upper' ];

		if ( direction ) {

			additions.reverse();

		}

		addClass(handle, Classes[3]);

		addClass(handle, Classes[3] + additions[index]);

		addClass(origin, Classes[2]);

		origin.appendChild(handle);

		return origin;

	}

	// Add the proper connection classes.

	function addConnection ( connect, target, handles ) {

		// Apply the required connection classes to the elements

		// that need them. Some classes are made up for several

		// segments listed in the class list, to allow easy

		// renaming and provide a minor compression benefit.

		switch ( connect ) {

			case 1:	addClass(target, Classes[7]);

					addClass(handles[0], Classes[6]);

					break;

			case 3: addClass(handles[1], Classes[6]);

					/* falls through */

			case 2: addClass(handles[0], Classes[7]);

					/* falls through */

			case 0: addClass(target, Classes[6]);

					break;

		}

	}

	// Add handles to the slider base.

	function addHandles ( nrHandles, direction, base ) {

		var index, handles = [];

		// Append handles.

		for ( index = 0; index < nrHandles; index += 1 ) {

			// Keep a list of all added handles.

			handles.push( base.appendChild(addHandle( direction, index )) );

		}

		return handles;

	}

	// Initialize a single slider.

	function addSlider ( direction, orientation, target ) {

		// Apply classes and data to the target.

		addClass(target, Classes[0]);

		addClass(target, Classes[8 + direction]);

		addClass(target, Classes[4 + orientation]);

		var div = document.createElement('div');

		addClass(div, Classes[1]);

		target.appendChild(div);

		return div;

	}

function closure ( target, options ){

	// All variables local to 'closure' are prefixed with 'scope_'

	var scope_Target = target,

		scope_Locations = [-1, -1],

		scope_Base,

		scope_Handles,

		scope_Spectrum = options.spectrum,

		scope_Values = [],

		scope_Events = {};

	function getGroup ( mode, values, stepped ) {

		// Use the range.

		if ( mode === 'range' || mode === 'steps' ) {

			return scope_Spectrum.xVal;

		}

		if ( mode === 'count' ) {

			// Divide 0 - 100 in 'count' parts.

			var spread = ( 100 / (values-1) ), v, i = 0;

			values = [];

			// List these parts and have them handled as 'positions'.

			while ((v=i++*spread) <= 100 ) {

				values.push(v);

			}

			mode = 'positions';

		}

		if ( mode === 'positions' ) {

			// Map all percentages to on-range values.

			return values.map(function( value ){

				return scope_Spectrum.fromStepping( stepped ? scope_Spectrum.getStep( value ) : value );

			});

		}

		if ( mode === 'values' ) {

			// If the value must be stepped, it needs to be converted to a percentage first.

			if ( stepped ) {

				return values.map(function( value ){

					// Convert to percentage, apply step, return to value.

					return scope_Spectrum.fromStepping( scope_Spectrum.getStep( scope_Spectrum.toStepping( value ) ) );

				});

			}

			// Otherwise, we can simply use the values.

			return values;

		}

	}

	function generateSpread ( density, mode, group ) {

		var originalSpectrumDirection = scope_Spectrum.direction,

			indexes = {},

			firstInRange = scope_Spectrum.xVal[0],

			lastInRange = scope_Spectrum.xVal[scope_Spectrum.xVal.length-1],

			ignoreFirst = false,

			ignoreLast = false,

			prevPct = 0;

		// This function loops the spectrum in an ltr linear fashion,

		// while the toStepping method is direction aware. Trick it into

		// believing it is ltr.

		scope_Spectrum.direction = 0;

		// Create a copy of the group, sort it and filter away all duplicates.

		group = unique(group.slice().sort(function(a, b){ return a - b; }));

		// Make sure the range starts with the first element.

		if ( group[0] !== firstInRange ) {

			group.unshift(firstInRange);

			ignoreFirst = true;

		}

		// Likewise for the last one.

		if ( group[group.length - 1] !== lastInRange ) {

			group.push(lastInRange);

			ignoreLast = true;

		}

		group.forEach(function ( current, index ) {

			// Get the current step and the lower + upper positions.

			var step, i, q,

				low = current,

				high = group[index+1],

				newPct, pctDifference, pctPos, type,

				steps, realSteps, stepsize;

			// When using 'steps' mode, use the provided steps.

			// Otherwise, we'll step on to the next subrange.

			if ( mode === 'steps' ) {

				step = scope_Spectrum.xNumSteps[ index ];

			}

			// Default to a 'full' step.

			if ( !step ) {

				step = high-low;

			}

			// Low can be 0, so test for false. If high is undefined,

			// we are at the last subrange. Index 0 is already handled.

			if ( low === false || high === undefined ) {

				return;

			}

			// Find all steps in the subrange.

			for ( i = low; i <= high; i += step ) {

				// Get the percentage value for the current step,

				// calculate the size for the subrange.

				newPct = scope_Spectrum.toStepping( i );

				pctDifference = newPct - prevPct;

				steps = pctDifference / density;

				realSteps = Math.round(steps);

				// This ratio represents the ammount of percentage-space a point indicates.

				// For a density 1 the points/percentage = 1. For density 2, that percentage needs to be re-devided.

				// Round the percentage offset to an even number, then divide by two

				// to spread the offset on both sides of the range.

				stepsize = pctDifference/realSteps;

				// Divide all points evenly, adding the correct number to this subrange.

				// Run up to <= so that 100% gets a point, event if ignoreLast is set.

				for ( q = 1; q <= realSteps; q += 1 ) {

					// The ratio between the rounded value and the actual size might be ~1% off.

					// Correct the percentage offset by the number of points

					// per subrange. density = 1 will result in 100 points on the

					// full range, 2 for 50, 4 for 25, etc.

					pctPos = prevPct + ( q * stepsize );

					indexes[pctPos.toFixed(5)] = ['x', 0];

				}

				// Determine the point type.

				type = (group.indexOf(i) > -1) ? 1 : ( mode === 'steps' ? 2 : 0 );

				// Enforce the 'ignoreFirst' option by overwriting the type for 0.

				if ( !index && ignoreFirst ) {

					type = 0;

				}

				if ( !(i === high && ignoreLast)) {

					// Mark the 'type' of this point. 0 = plain, 1 = real value, 2 = step value.

					indexes[newPct.toFixed(5)] = [i, type];

				}

				// Update the percentage count.

				prevPct = newPct;

			}

		});

		// Reset the spectrum.

		scope_Spectrum.direction = originalSpectrumDirection;

		return indexes;

	}

	function addMarking ( spread, filterFunc, formatter ) {

		var style = ['horizontal', 'vertical'][options.ort],

			element = document.createElement('div');

		addClass(element, 'noUi-pips');

		addClass(element, 'noUi-pips-' + style);

		function getSize( type ){

			return [ '-normal', '-large', '-sub' ][type];

		}

		function getTags( offset, source, values ) {

			return 'class="' + source + ' ' +

				source + '-' + style + ' ' +

				source + getSize(values[1]) +

				'" style="' + options.style + ': ' + offset + '%"';