高级逻辑 | JShare

/**
 * An advanced example of how to use a gantt chart to plan and visualize
 * resources in logistics, in this case shipping.
 * The chart displays a set of vessels and its scheduled journeys.
 * The journeys can consist of one or more laps, which in itself contains
 * loading, voyage, and unloading, these can be moved or resized.
 * The chart also includes custom indicators like the Heat Indicator which
 * displays when the vessels idle time goes above a threshold, and the
 * Earliest Possible Return Indicator which displays when the vessel can return
 * if it travels by maximum speed.
 */

/**
 * --- Logistics module start
 * This module adds heat indicators, idle time, and earliest possible return
 * indicators.
 */
(function (Highcharts) {
    var draw = (function () {
        var isFn = function (x) {
            return typeof x === 'function';
        };

        /**
         * draw - Handles the drawing of a point.
         * TODO: add type checking.
         *
         * @param  {object} params Parameters.
         * @return {undefined} Returns undefined.
         */
        var draw = function draw(params) {
            var point = this,
                graphic = point.graphic,
                animate = params.animate,
                attr = params.attr,
                onComplete = params.onComplete,
                css = params.css,
                group = params.group,
                renderer = params.renderer,
                shape = params.shapeArgs,
                type = params.shapeType;

            if (point.shouldDraw()) {
                if (!graphic) {
                    point.graphic = graphic = renderer[type](shape).add(group);
                }
                graphic.css(css).attr(attr)
                    .animate(animate, undefined, onComplete);
            } else if (graphic) {
                graphic.animate(animate, undefined, function () {
                    point.graphic = graphic = graphic.destroy();
                    if (isFn(onComplete)) {
                        onComplete();
                    }
                });
            }
            if (graphic) {
                graphic.addClass(point.getClassName(), true);
            }
        };
        return draw;
    }());

    var renderHeatIndicators = (function (Highcharts, draw) {

        var each = Highcharts.each,
            extend = Highcharts.extend,
            isFunction = function (x) {
                return typeof x === 'function';
            },
            isNumber = Highcharts.isNumber,
            merge = Highcharts.merge,
            reduce = Highcharts.reduce,
            objectEach = Highcharts.objectEach;

        var defaultOptions = {
            color: {
                linearGradient: {
                    x1: 0,
                    x2: 1,
                    y1: 0,
                    y2: 0
                },
                stops: [
                    [0, 'rgb(255, 255, 255)'],
                    [0.8, 'rgb(255, 0, 0)']
                ]
            }
        };

        var HeatIndicator = function (params) {
            var indicator = this;
            indicator.init(params);
            return indicator;
        };

        HeatIndicator.prototype = {
            destroy: function () {
                var indicator = this;

                if (indicator.graphic) {
                    indicator.graphic = indicator.graphic.destroy();
                }

                objectEach(indicator, function (val, key) {
                    indicator[key] = null;
                    delete indicator[key];
                });

                return undefined;
            },
            draw: draw,
            getClassName: function () {
                return 'highcharts-heat-indicator';
            },
            init: function (params) {
                var indicator = this;

                // Set properties on the indicator.
                extend(indicator, {
                    group: params.group,
                    metrics: params.metrics,
                    renderer: params.renderer,
                    xAxis: params.xAxis,
                    yAxis: params.yAxis
                });

                indicator.options = merge(defaultOptions, params.options);

                // Return a reference to the indicator.
                return indicator;
            },
            render: function () {
                var indicator = this,
                    metrics = indicator.metrics,
                    xAxis = indicator.xAxis,
                    yAxis = indicator.yAxis,
                    options = indicator.options,
                    start = isNumber(indicator.start) ?
                        indicator.start : xAxis.min,
                    end = isNumber(indicator.end) ?
                        indicator.end : xAxis.max,
                    x1 = xAxis.translate(start > end ? start : end, 0, 0, 0, 1),
                    x2 = xAxis.translate(start > end ? end : start, 0, 0, 0, 1),
                    plotY = yAxis.translate(indicator.y, 0, 1, 0, 1),
                    y1 = plotY,
                    y2 = plotY + metrics.width / 2,
                    animate = {},
                    attr = {
                        fill: options.color
                    };

                // Animate only the width if the graphic is new.
                if (!indicator.graphic) {
                    extend(attr, {
                        x: x1,
                        y: y1,
                        width: 0,
                        height: y2 - y1
                    });
                    animate.width = x2 - x1;
                } else {
                    extend(animate, {
                        x: x1,
                        y: y1,
                        width: x2 - x1,
                        height: y2 - y1
                    });
                }

                // Draw or destroy the graphic
                indicator.draw({
                    animate: animate,
                    attr: attr,
                    css: undefined,
                    group: indicator.group,
                    renderer: indicator.renderer,
                    shapeArgs: undefined,
                    shapeType: 'rect'
                });
            },
            shouldDraw: function () {
                var indicator = this,
                    options = indicator.options || {},
                    filter = options.filter,
                    start = indicator.start,
                    end = indicator.end,
                    y = indicator.y;

                return (
                    options.enabled === true &&
                    isNumber(start) &&
                    isNumber(end) &&
                    isNumber(y) &&
                    start < end &&
                    (isFunction(filter) ? filter(indicator) : true)
                );
            },
            update: function (params) {
                var indicator = this;
                extend(indicator, params);
                this.render();
            }
        };

        var calculateSeriesIdleTime = function (series) {
            var points = series.points
                .slice() // Make a copy before sorting.
                .sort(function (a, b) {
                    return b.start - a.start;
                }),
                xAxis = series.xAxis,
                min = xAxis.min,
                firstPoint = points[points.length - 1].start,
                totalIdle = firstPoint > min ? firstPoint - min : 0,
                max = xAxis.max;

            reduce(points, function (next, current) {
                var start = current.end,
                    end = next ? next.start : max,
                    idle = (start < end) ? end - start : 0,
                    visibleIdle = Math.min(end, max) - Math.max(start, min);
                visibleIdle = visibleIdle > 0 ? visibleIdle : 0;
                current.idle = idle;
                totalIdle += visibleIdle;
                return current;
            }, undefined);
            series.idle = totalIdle;
        };

        var renderHeatIndicators = function (series) {
            var options = series.options && series.options.heatIndicator || {};

            // TODO Several modules are dependent upon this, it should be added
            // as a dependency somehow.
            calculateSeriesIdleTime(series);

            each(series.points, function (point) {
                // Get existing indicator from point, or create a new one.
                var heatIndicator = point.heatIndicator || new HeatIndicator({
                    group: series.group,
                    metrics: series.columnMetrics,
                    xAxis: series.xAxis,
                    yAxis: series.yAxis,
                    options: options,
                    renderer: series.chart.renderer
                });

                // Update the indicator. Rerenders the graphic with new values.
                heatIndicator.update({
                    y: point.y,
                    start: point.end,
                    end: point.end + point.idle
                });

                // Set the resulting indicator on the point.
                point.heatIndicator = heatIndicator;
            });
        };

        return renderHeatIndicators;
    }(Highcharts, draw));

    var renderEPRIndicators = (function (Highcharts, draw) {

        var each = Highcharts.each,
            objectEach = Highcharts.objectEach,
            extend = Highcharts.extend,
            isNumber = Highcharts.isNumber,
            merge = Highcharts.merge;

        var defaultOptions = {
            color: 'rgb(255, 0, 0)',
            lineWidth: 1,
            dashstyle: 'dash'
        };

        var EPRIndicator = function (params) {
            var indicator = this;
            indicator.init(params);
            return indicator;
        };

        EPRIndicator.prototype = {
            destroy: function () {
                var indicator = this;

                if (indicator.graphic) {
                    indicator.graphic = indicator.graphic.destroy();
                }

                objectEach(indicator, function (val, key) {
                    indicator[key] = null;
                    delete indicator[key];
                });

                return undefined;
            },
            draw: draw,
            getClassName: function () {
                return 'highcharts-eap-indicator';
            },
            init: function (params) {
                var indicator = this;

                // Set properties on the indicator.
                extend(indicator, {
                    group: params.group,
                    metrics: params.metrics,
                    renderer: params.renderer,
                    xAxis: params.xAxis,
                    yAxis: params.yAxis
                });

                indicator.options = merge(defaultOptions, params.options);

                // Return a reference to the indicator.
                return indicator;
            },
            render: function () {
                var indicator = this,
                    renderer = indicator.renderer,
                    metrics = indicator.metrics,
                    options = indicator.options,
                    lineWidth = options.lineWidth,
                    plotX = indicator.xAxis.translate(indicator.x, 0, 0, 0, 1),
                    plotY = indicator.yAxis.translate(indicator.y, 0, 1, 0, 1),
                    x1 = plotX,
                    x2 = plotX,
                    y1 = plotY - metrics.width / 2,
                    y2 = plotY + metrics.width / 2,
                    path = renderer.crispLine(
                        ['M', x1, y1, 'L', x2, y2], lineWidth
                    ),
                    attr = {
                        stroke: options.color,
                        'stroke-width': lineWidth,
                        dashstyle: options.dashstyle
                    },
                    animate = {};

                // Animate if the graphic is not new.
                if (!indicator.graphic) {
                    attr.d = path;
                } else {
                    animate.d = path;
                }

                // Draw or destroy the graphic
                indicator.draw({
                    animate: animate,
                    attr: attr,
                    css: undefined,
                    group: indicator.group,
                    renderer: indicator.renderer,
                    shapeArgs: undefined,
                    shapeType: 'path'
                });
            },
            shouldDraw: function () {
                var indicator = this,
                    x = indicator.x,
                    y = indicator.y;

                return (
                    indicator.enabled === true && isNumber(x) && isNumber(y)
                );
            },
            update: function (params) {
                var indicator = this;
                extend(indicator, params);
                this.render();
            }
        };

        var renderEPRIndicators = function (series) {
            each(series.points, function (point) {
                var options = point.options && point.options.indicator || {},
                    // point.options.indicator is copied to point.indicator, so
                    // we use point.indicatorObj instead.
                    indicator = point.indicatorObj || new EPRIndicator({
                        group: series.group,
                        metrics: series.columnMetrics,
                        xAxis: series.xAxis,
                        yAxis: series.yAxis,
                        renderer: series.chart.renderer
                    });
                indicator.update({
                    enabled: options.enabled,
                    x: options.x ? point.start + options.x : point.start,
                    y: point.y
                });

                point.indicatorObj = indicator;
            });
        };

        return renderEPRIndicators;
    }(Highcharts, draw));

    (function (Highcharts, renderHeatIndicators, renderEPRIndicators) {
        var Series = Highcharts.Series;
        // Add heat indicator functionality to Highcharts Series.
        Highcharts.addEvent(Series, 'afterRender', function () {
            var series = this;
            renderEPRIndicators(series);
            renderHeatIndicators(series);
        });
    }(Highcharts, renderHeatIndicators, renderEPRIndicators));

}(Highcharts));

/**
 * --- Logistics module end
 */

/**
 * Variables
 */
var today = +Date.now(),
    minutes = 60 * 1000,
    hours = 60 * minutes,
    days = 24 * hours,
    dateFormat = function (date) {
        var format = '%e. %b';
        return Highcharts.dateFormat(format, date);
    },
    find = Highcharts.find,
    xAxisMin = today - (10 * days),
    xAxisMax = xAxisMin + 90 * days,
    data;

/**
 * The data used in this visualization.
 */
data = {
    // The different events in a lap of a journey.
    events: {
        loading: {
            color: '#395627',
            tooltipFormatter: function (point) {
                return [
                    '<b>Loading</b><br/>',
                    'Start: ' + dateFormat(point.start) + '<br/>',
                    'End: ' + dateFormat(point.end) + '<br/>'
                ].join('');
            }
        },
        voyage: {
            color: '#558139',
            tooltipFormatter: function (point) {
                var indicator = point.indicator;
                return [
                    '<b>Voyage</b><br/>',
                    'Start: (' + point.startLocation + ') ' +
                        dateFormat(point.start) + '<br/>',
                    'End: (' + point.endLocation + ') ' +
                        dateFormat(point.end) + '<br/>',
                    indicator ? 'EPR: ' + dateFormat(indicator.x) : ''
                ].join('');
            }
        },
        unloading: {
            color: '#aad091',
            tooltipFormatter: function (point) {
                return [
                    '<b>Unloading</b><br/>',
                    'Start: ' + dateFormat(point.start) + '<br/>',
                    'End: ' + dateFormat(point.end) + '<br/>'
                ].join('');
            }
        }
    },
    // All the vessels and its sceduled journeys
    vessels: [{
        name: 'Vessel 1',
        journeys: [{
            name: 'Contract 1',
            start: today + days,
            laps: [{
                duration: 21 * days,
                startLocation: 'USGLS',
                endLocation: 'BEZEE',
                loadDuration: 1 * days + 2 * hours + 45 * minutes,
                unloadDuration: 1 * days + 2 * hours + 45 * minutes
            }, {
                duration: 11 * days,
                startLocation: 'BEZEE',
                endLocation: 'USCP6',
                loadDuration: 0,
                unloadDuration: 0,
                color: '#c6dfb6'
            }]
        }, {
            name: 'Contract 5',
            start: today + 50 * days,
            laps: [{
                duration: 7 * days,
                startLocation: 'USGLS',
                endLocation: 'BEZEE',
                loadDuration: 2 * days + 2 * hours + 45 * minutes,
                unloadDuration: 1 * days + 2 * hours + 45 * minutes
            }, {
                duration: 7 * days,
                startLocation: 'BEZEE',
                endLocation: 'USCP6',
                loadDuration: 0,
                unloadDuration: 1 * days + 4 * hours,
                color: '#c6dfb6'
            }, {
                duration: 19 * days,
                startLocation: 'USCP6',
                endLocation: 'NOVIS',
                loadDuration: 0,
                unloadDuration: 0
            }]
        }]
    }, {
        name: 'Vessel 2',
        journeys: [{
            name: 'Contract 2',
            start: today - 5 * days,
            laps: [{
                duration: 13 * days,
                startLocation: 'USGLS',
                endLocation: 'BEZEE',
                loadDuration: 2 * days + 2 * hours + 45 * minutes,
                unloadDuration: 2 * days + 2 * hours + 45 * minutes
            }, {
                duration: 8 * days,
                startLocation: 'BEZEE',
                endLocation: 'USCP6',
                loadDuration: 0,
                unloadDuration: 0,
                color: '#c6dfb6'
            }],
            earliestPossibleReturn: (today - 5 * days) + 20 * days
        }, {
            name: 'Contract 3',
            start: today + 23 * days,
            laps: [{
                duration: 5 * days,
                startLocation: 'USGLS',
                endLocation: 'BEZEE',
                loadDuration: 2 * days + 2 * hours + 45 * minutes,
                unloadDuration: 2 * days + 2 * hours + 45 * minutes
            }, {
                duration: 14 * days,
                startLocation: 'BEZEE',
                endLocation: 'USCP6',
                loadDuration: 0,
                unloadDuration: 0,
                color: '#c6dfb6'
            }]
        }, {
            name: 'Contract 4',
            start: today + 60 * days,
            laps: [{
                duration: 11 * days,
                startLocation: 'USGLS',
                endLocation: 'BEZEE',
                loadDuration: 2 * days + 2 * hours + 45 * minutes,
                unloadDuration: 2 * days + 2 * hours + 45 * minutes
            }, {
                duration: 6 * days,
                startLocation: 'BEZEE',
                endLocation: 'USCP6',
                loadDuration: 0,
                unloadDuration: 0,
                color: '#c6dfb6'
            }]
        }]
    }]
};

/**
 * Creates a point in a lap.
 */
var getPoint = function (params) {
    var start = params.start,
        tripName = params.tripName,
        type = params.type,
        vessel = params.vessel,
        duration = params.duration,
        voyage = params.voyage,
        indicator,
        earliestPossibleReturn = params.epr,
        end = start + duration;

    indicator = (
        (
            Highcharts.isNumber(earliestPossibleReturn) &&
            start < earliestPossibleReturn &&
            earliestPossibleReturn < end
        ) ?
        {
            enabled: true,
            x: earliestPossibleReturn - start
        } :
        undefined
    );

    return {
        start: start,
        end: end,
        color: voyage && voyage.color || data.events[type].color,
        vessel: vessel.name,
        indicator: indicator,
        y: params.y,
        type: type,
        startLocation: voyage && voyage.startLocation,
        endLocation: voyage && voyage.endLocation,
        name: tripName,
        trip: tripName,
        dragDrop: {
            draggableStart: type === 'voyage',
            draggableEnd: type === 'voyage'
        }
    };
};

/**
 * Creates a set of points based on a lap. These points are grouped together.
 */
var getGroupFromTrip = function (trip, vessel, y) {
    return trip.laps.reduce(function (group, voyage) {
        var points = [];

        if (voyage.loadDuration) {
            points.push(getPoint({
                start: group.end,
                duration: voyage.loadDuration,
                tripName: trip.name,
                type: 'loading',
                vessel: vessel,
                y: y
            }));
            group.end += voyage.loadDuration;
        }

        points.push(getPoint({
            start: group.end,
            duration: voyage.duration,
            voyage: voyage,
            epr: trip.earliestPossibleReturn,
            tripName: trip.name,
            type: 'voyage',
            vessel: vessel,
            y: y
        }));
        group.end += voyage.duration;

        if (voyage.unloadDuration) {
            points.push(getPoint({
                start: group.end,
                duration: voyage.unloadDuration,
                tripName: trip.name,
                type: 'unloading',
                vessel: vessel,
                y: y
            }));
            group.end += voyage.unloadDuration;
        }

        // Add the points
        group.points = group.points.concat(points);
        return group;
    }, {
        end: trip.start, // Previous point end
        points: []
    });
};

/**
 * Parses the data and creates all the series of the chart.
 */
var getSeriesFromInformation = function (info) {
    var vessels = info.vessels;
    return vessels.map(function (vessel, i) {
        var data = vessel.journeys.reduce(function (result, trip) {
            var group = getGroupFromTrip(trip, vessel, i);
            return result.concat(group.points);
        }, []);

        // One series per vessel
        return {
            name: vessel.name,
            data: data,
            id: i
        };
    });
};

/**
 * Modify event to handle modifying other points in group when resizing
 */
var customResize = function (e, chart) {
    var newPoints = e.newPoints,
        defined = Highcharts.defined,
        objectEach = Highcharts.objectEach,
        start,
        end,
        diff,
        resizePoint;

    if (e.newPoint && defined(e.newPoint.start) !== defined(e.newPoint.end)) {
        start = e.newPoint.start;
        end = e.newPoint.end;
        resizePoint = chart.get(e.newPointId);

        diff = defined(start) && start - resizePoint.options.start ||
                defined(end) && end - resizePoint.options.end;

        objectEach(e.origin.points, function (pointOrigin) {
            var point = pointOrigin.point;
            if (
                point.id !== e.newPointId && (
                    defined(start) && point.end <= resizePoint.options.start ||
                    defined(end) && point.start >= resizePoint.options.end
                )
            ) {
                newPoints[point.id] = {
                    point: point,
                    newValues: {
                        start: point.start + diff,
                        end: point.end + diff
                    }
                };
            }
        });
    }
};

/**
 * Check if new points collide with existing ones
 */
var newPointsColliding = function (newPoints, chart) {
    var reduce = Highcharts.reduce,
        keys = Highcharts.keys,
        pick = Highcharts.pick,
        inArray = Highcharts.inArray,
        groupedPoints = chart.dragDropData && chart.dragDropData.groupedPoints,
        y,
        minX = reduce(keys(newPoints), function (acc, id) {
            y = pick(newPoints[id].newValues.y, newPoints[id].point.y);
            return Math.min(
                acc, pick(
                    newPoints[id].newValues.start, newPoints[id].point.start
                )
            );
        }, Infinity),
        maxX = reduce(keys(newPoints), function (acc, id) {
            return Math.max(
                acc, pick(newPoints[id].newValues.end, newPoints[id].point.end)
            );
        }, -Infinity),
        newSeries = chart.get(y),
        i,
        collidePoint,
        pointOverlaps = function (point) {
            return point.end >= minX && point.start <= minX ||
                point.start <= maxX && point.end >= maxX ||
                point.start <= minX && point.end >= maxX ||
                point.start >= minX && point.end <= maxX;
        };

    if (newSeries) {
        i = newSeries.points ? newSeries.points.length : 0;
        while (i--) {
            collidePoint = newSeries.points[i];
            if (
                inArray(collidePoint, groupedPoints) < 0 &&
                pointOverlaps(collidePoint)
            ) {
                return true;
            }
        }
    }
    return false;
};

/**
 * Add collision detection on move/resize
 */
var customDrag = function (e) {
    var series = this.series,
        chart = series.chart;

    // Handle the resize
    customResize(e, chart);

    // Check collision
    if (newPointsColliding(e.newPoints, chart)) {
        chart.dragDropData.isColliding = true;
        chart.setGuideBoxState('collide', series.options.dragDrop.guideBox);
    } else if (chart.dragDropData) {
        delete chart.dragDropData.isColliding;
        chart.setGuideBoxState('default', series.options.dragDrop.guideBox);
    }
};

/**
 * Implement custom drop. Do normal update, but move points between series when
 * changing their y value.
 */
var customDrop = function (e) {
    var newPoints = e.newPoints,
        chart = this.series.chart,
        defined = Highcharts.defined,
        objectEach = Highcharts.objectEach;

    // Just return if we are colliding.
    if (chart.dragDropData.isColliding) {
        return false;
    }

    // Stop further dragdrops while we update
    chart.isDragDropAnimating = true;

    // Update the points
    objectEach(newPoints, function (update) {
        var newValues = update.newValues,
            oldPoint = update.point,
            newSeries = defined(newValues.y) ?
                chart.get(newValues.y) : oldPoint.series;

        // Destroy any old heat indicator objects
        if (oldPoint.heatIndicator) {
            oldPoint.heatIndicator =
                oldPoint.heatIndicator.destroy();
        }
        if (oldPoint.indicatorObj) {
            oldPoint.indicatorObj =
                oldPoint.indicatorObj.destroy();
        }

        // Update the point
        if (newSeries !== oldPoint.series) {
            newValues = Highcharts.merge(
                oldPoint.options, newValues
            );
            update.point = oldPoint = oldPoint.remove(false);
            newSeries.addPoint(newValues, false);
        } else {
            oldPoint.update(newValues, false);
        }
    });

    // Redraw with specific animation
    chart.redraw({
        duration: 400
    });
    setTimeout(function () {
        delete chart.isDragDropAnimating;
        if (chart.hoverPoint && !chart.dragHandles) {
            chart.hoverPoint.showDragHandles();
        }
    }, 400);

    // Don't do the default drop
    return false;
};

/**
 * Custom formatter for data labels which are left aligned.
 */
var leftLabelFormatter = function () {
    if (this.point.type === 'voyage') {
        return this.point.startLocation;
    }
};

/**
 * Custom formatter for data labels which are center aligned.
 */
var centerLabelFormatter = function () {
    if (this.point.type === 'voyage') {
        return ' ' + this.point.name + ' ';
    }
};

/**
 * Custom formatter for data labels which are right aligned.
 */
var rightLabelFormatter = function () {
    if (this.point.type === 'voyage') {
        return this.point.endLocation;
    }
};

/**
 * Custom formatter for axis labels displaying the series name.
 */
var gridColumnFormatterSeriesName = function () {
    var chart = this.chart,
        series = chart.get(this.value);
    return series.name;
};

/**
 * Creates a category label and formats it based on the value.
 */
var getCategoryFromIdleTime = function (utilized, idle) {
    var thresholds = {
            25: 'bad',
            50: 'ok',
            75: 'good',
            100: 'great'
        },
        threshold = find(Object.keys(thresholds), function (threshold) {
            return utilized < +threshold;
        }),
        className = thresholds[threshold];
    return [
        '<span class="info-span ' + className + '">',
        '    <span class="utilized">' + utilized + '%</span><br/>',
        '    <span>t: ' + idle + ' days</span>',
        '</span>'
    ].join('\n');
};

/**
 * Custom formatter for axis labels displaying the vessels number of idle days,
 * and its percentage of utilized time.
 */
var gridColumnFormatterSeriesIdle = function () {
    var chart = this.chart,
        series = chart.get(this.value),
        xAxis = series.xAxis,
        total = xAxis.max - xAxis.min,
        idle = series.idle || 0,
        used = total - idle,
        percentage = Math.round((100 / total) * used),
        idleDays = Math.round(idle / days);
    return getCategoryFromIdleTime(percentage, idleDays);
};

/**
 * Custom formatter for the tooltip.
 */
var tooltipFormatter = function () {
    var point = this.point,
        trip = point.trip,
        series = point.series,
        formatter = data.events[point.type].tooltipFormatter;
    return '<b>' + trip + ' - ' + series.name + '</b><br/>' + formatter(point);
};

/**
 * Set the options and create the gantt chart.
 */
Highcharts.ganttChart('container', {
    plotOptions: {
        series: {
            dragDrop: {
                draggableX: true,
                draggableY: true,
                dragMinY: 0,
                dragMaxY: data.vessels.length - 1,
                liveRedraw: false,
                groupBy: 'trip',
                guideBox: {
                    collide: {
                        color: 'rgba(200, 0, 0, 0.4)'
                    }
                }
            },
            heatIndicator: {
                enabled: true,
                filter: function (indicator) {
                    var start = indicator.start,
                        end = indicator.end,
                        idleTime = end - start;
                    return idleTime > (10 * days);
                }
            },
            stickyTracking: true,
            cursor: 'move',
            borderRadius: 0,
            borderWidth: 0,
            pointPadding: 0,
            dataLabels: [{
                enabled: true,
                labelrank: 1,
                formatter: leftLabelFormatter,
                align: 'left',
                style: {
                    fontSize: '8px'
                }
            }, {
                enabled: true,
                labelrank: 2,
                formatter: centerLabelFormatter,
                align: 'center',
                borderWidth: 1,
                padding: 3,
                style: {
                    fontSize: '10px'
                }
            }, {
                enabled: true,
                labelrank: 1,
                formatter: rightLabelFormatter,
                align: 'right',
                style: {
                    fontSize: '8px'
                }
            }],
            point: {
                events: {
                    drag: customDrag,
                    drop: customDrop
                }
            }
        }
    },
    legend: {
        enabled: false
    },
    rangeSelector: {
        enabled: true,
        selected: 1
    },
    scrollbar: {
        enabled: true
    },
    series: getSeriesFromInformation(data),
    tooltip: {
        formatter: tooltipFormatter
    },
    xAxis: [{
        type: 'datetime',
        currentDateIndicator: true,
        grid: false,
        labels: {
            format: undefined
        },
        min: xAxisMin,
        max: xAxisMax,
        tickInterval: undefined
    }],
    yAxis: [{
        type: 'category',
        reversed: true,
        maxPadding: 0,
        staticScale: 100,
        labels: {
            useHTML: true
        },
        grid: {
            enabled: true,
            columns: [{
                labels: {
                    formatter: gridColumnFormatterSeriesName
                }
            }, {
                labels: {
                    formatter: gridColumnFormatterSeriesIdle
                }
            }]
        }
    }]
});

<div id="container"></div>
<p id="description">
	An advanced example of how to use a gantt chart to plan and visualize 
	resources in logistics, in this case shipping. 
	The chart displays a set of vessels and its scheduled journeys. 
	The journeys can consist of one or more laps, which in itself contains 
	loading, voyage, and unloading, these can be moved or resized. 
	The chart also includes custom indicators like the Heat Indicator which 
	displays when the vessels idle time goes above a threshold, and the 
	Earliest Possible Return Indicator which displays when the vessel can 
	return if it travels by maximum speed.
</p>

.clearfix {
	clear: both;
}
.info-span .utilized {
	font-size: 14px;
}
.info-span.great {
	color: #788c6b;
}
.info-span.good {
	color: #fbe496;
}
.info-span.ok {
	color: #e0b08b;
}
.info-span.bad {
	color: #c79495;
}
#description {
	max-width: 800px;
	margin: 0 auto;
}

{"resource":"107,58,109,7","options":"{\"editor\":{\"saveLayout\":false,\"saveFold\":false,\"autoFormat\":true},\"hcode\":{\"layoutId\":\"2\"}}","code":{"code":"tRSxLg","name":"高级逻辑","version":0,"doctype":0,"description":"","meta":"","newGroup":2526,"group":{"id":2526,"name":"甘特图","code":"gantt"}}}

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