Package com.vaadin.flow.component.charts.model

Class PlotOptionsHeatmap

  • All Implemented Interfaces:
    Serializable
    public class PlotOptionsHeatmap
extends AbstractPlotOptions

    The heatmap series type. This series type is available both in Highcharts and Highmaps.

    The colors of each heat map point is usually determined by its value and controlled by settings on the colorAxis.

    See Also:
    Serialized Form

    • Constructor Detail

      • PlotOptionsHeatmap

        public PlotOptionsHeatmap()

    • Method Detail

      • setAllowPointSelect

        public void setAllowPointSelect​(Boolean allowPointSelect)
        Allow this series' points to be selected by clicking on the markers, bars or pie slices.

        Defaults to: false

      • setAnimation

        public void setAnimation​(Boolean animation)
        Enable or disable the initial animation when a series is displayed. Please note that this option only applies to the initial animation of the series itself. For other animations, see ChartModel.setAnimation(Boolean)

      • setAnimationLimit

        public void setAnimationLimit​(Number animationLimit)
        For some series, there is a limit that shuts down initial animation by default when the total number of points in the chart is too high. For example, for a column chart and its derivatives, animation doesn't run if there is more than 250 points totally. To disable this cap, set animationLimit to Infinity.

      • setBorderColor

        public void setBorderColor​(Color borderColor)

        The color of the border surrounding each column or bar.

        In styled mode, the border stroke can be set with the .highcharts-point rule.

        Defaults to: #ffffff

      • setBorderRadius

        public void setBorderRadius​(Number borderRadius)
        The corner radius of the border surrounding each column or bar.

        Defaults to: 0

      • setBorderWidth

        public void setBorderWidth​(Number borderWidth)

        The width of the border surrounding each column or bar.

        In styled mode, the stroke width can be set with the .highcharts-point rule.

        Defaults to: 1

      • setClassName

        public void setClassName​(String className)
        A class name to apply to the series' graphical elements.

      • setClip

        public void setClip​(Boolean clip)
        Disable this option to allow series rendering in the whole plotting area. Note that clipping should be always enabled when chart.zoomType is set.

        Defaults to true.

      • setColor

        public void setColor​(Color color)
        The main color of the series. In heat maps this color is rarely used, as we mostly use the color to denote the value of each point. Unless options are set in the colorAxis, the default value is pulled from the options.colors array.

        Defaults to: null

      • setColorByPoint

        public void setColorByPoint​(Boolean colorByPoint)
        When using automatic point colors pulled from the options.colors collection, this option determines whether the chart should receive one color per series or one color per point.

        Defaults to: false

      • setColorIndex

        public void setColorIndex​(Number colorIndex)
        Styled mode only. A specific color index to use for the series, so its graphic representations are given the class name highcharts-color-{n}.

      • setColorKey

        public void setColorKey​(String colorKey)
        Determines what data value should be used to calculate point color if colorAxis is used. Requires to set min and max if some custom point property is used or if approximation for data grouping is set to 'sum'.

        Defaults to value.

      • setColors

        public void setColors​(Color... colors)
        A series specific or series type specific color set to apply instead of the global colors when colorByPoint is true.

      • addColor

        public void addColor​(Color color)
        Adds color to the colors array
        Parameters:
        color - to add
        See Also:
        setColors(Color...)

      • removeColor

        public void removeColor​(Color color)
        Removes first occurrence of color in colors array
        Parameters:
        color - to remove
        See Also:
        setColors(Color...)

      • setColsize

        public void setColsize​(Number colsize)
        The column size - how many X axis units each column in the heatmap should span.

        Defaults to: 1

      • setCrisp

        public void setCrisp​(Boolean crisp)
        When true, each column edge is rounded to its nearest pixel in order to render sharp on screen. In some cases, when there are a lot of densely packed columns, this leads to visible difference in column widths or distance between columns. In these cases, setting crisp to false may look better, even though each column is rendered blurry.

        Defaults to: true

      • setCropThreshold

        public void setCropThreshold​(Number cropThreshold)
        When the series contains less points than the crop threshold, all points are drawn, event if the points fall outside the visible plot area at the current zoom. The advantage of drawing all points (including markers and columns), is that animation is performed on updates. On the other hand, when the series contains more points than the crop threshold, the series data is cropped to only contain points that fall within the plot area. The advantage of cropping away invisible points is to increase performance on large series. .

        Defaults to: 50

      • setCursor

        public void setCursor​(Cursor cursor)
        You can set the cursor to "pointer" if you have click events attached to the series, to signal to the user that the points and lines can be clicked.

      • setDataLabels

        public void setDataLabels​(DataLabels dataLabels)

        Options for the series data labels, appearing next to each data point.

        In styled mode, the data labels can be styled wtih the .highcharts-data-label-box and .highcharts-data-label class names (see example).

      • setDescription

        public void setDescription​(String description)

        Requires Accessibility module

        A description of the series to add to the screen reader information about the series.

        Defaults to: undefined

      • setEnableMouseTracking

        public void setEnableMouseTracking​(Boolean enableMouseTracking)
        Enable or disable the mouse tracking for a specific series. This includes point tooltips and click events on graphs and points. For large datasets it improves performance.

        Defaults to: true

      • setExposeElementToA11y

        public void setExposeElementToA11y​(Boolean exposeElementToA11y)

        By default, series are exposed to screen readers as regions. By enabling this option, the series element itself will be exposed in the same way as the data points. This is useful if the series is not used as a grouping entity in the chart, but you still want to attach a description to the series.

        Requires the Accessibility module.

        Defaults to: undefined

      • setFindNearestPointBy

        public void setFindNearestPointBy​(Dimension findNearestPointBy)

        Determines whether the series should look for the nearest point in both dimensions or just the x-dimension when hovering the series. Defaults to 'xy' for scatter series and 'x' for most other series. If the data has duplicate x-values, it is recommended to set this to 'xy' to allow hovering over all points.

        Applies only to series types using nearest neighbor search (not direct hover) for tooltip.

      • setGetExtremesFromAll

        public void setGetExtremesFromAll​(Boolean getExtremesFromAll)
        Whether to use the Y extremes of the total chart width or only the zoomed area when zooming in on parts of the X axis. By default, the Y axis adjusts to the min and max of the visible data. Cartesian series only.

        Defaults to: false

      • setKeys

        public void setKeys​(String... keys)
        An array specifying which option maps to which key in the data point array. This makes it convenient to work with unstructured data arrays from different sources.

      • addKey

        public void addKey​(String key)
        Adds key to the keys array
        Parameters:
        key - to add
        See Also:
        setKeys(String...)

      • removeKey

        public void removeKey​(String key)
        Removes first occurrence of key in keys array
        Parameters:
        key - to remove
        See Also:
        setKeys(String...)

      • setLinkedTo

        public void setLinkedTo​(String linkedTo)
        The id of another series to link to. Additionally, the value can be ":previous" to link to the previous series. When two series are linked, only the first one appears in the legend. Toggling the visibility of this also toggles the linked series.

      • setMaxPointWidth

        public void setMaxPointWidth​(Number maxPointWidth)
        The maximum allowed pixel width for a column, translated to the height of a bar in a bar chart. This prevents the columns from becoming too wide when there is a small number of points in the chart.

        Defaults to: null

      • setOpacity

        public void setOpacity​(Number opacity)
        Opacity of a series parts: line, fill (e.g. area) and dataLabels.

        Defaults to 1.

      • getPointDescriptionFormatter

        public String getPointDescriptionFormatter()

      • setPointDescriptionFormatter

        public void setPointDescriptionFormatter​(String _fn_pointDescriptionFormatter)

      • setRowsize

        public void setRowsize​(Number rowsize)
        The row size - how many Y axis units each heatmap row should span.

        Defaults to: 1

      • setSelected

        public void setSelected​(Boolean selected)
        Whether to select the series initially. If showCheckbox is true, the checkbox next to the series name will be checked for a selected series.

        Defaults to: false

      • setShadow

        public void setShadow​(Boolean shadow)
        Whether to apply a drop shadow to the graph line. Since 2.3 the shadow can be an object configuration containing color, offsetX, offsetY, opacity and width.

        Defaults to: false

      • setShowCheckbox

        public void setShowCheckbox​(Boolean showCheckbox)
        If true, a checkbox is displayed next to the legend item to allow selecting the series. The state of the checkbox is determined by the selected option.

        Defaults to: false

      • setShowInLegend

        public void setShowInLegend​(Boolean showInLegend)
        Whether to display this particular series or series type in the legend. The default value is true for standalone series, false for linked series.

        Defaults to: true

      • setSkipKeyboardNavigation

        public void setSkipKeyboardNavigation​(Boolean skipKeyboardNavigation)
        If set to True, the accessibility module will skip past the points in this series for keyboard navigation.

      • setStates

        public void setStates​(States states)
        A wrapper object for all the series options in specific states.

      • setStickyTracking

        public void setStickyTracking​(Boolean stickyTracking)
        Sticky tracking of mouse events. When true, the mouseOut event on a series isn't triggered until the mouse moves over another series, or out of the plot area. When false, the mouseOut event on a series is triggered when the mouse leaves the area around the series' graph or markers. This also implies the tooltip. When stickyTracking is false and tooltip.shared is false, the tooltip will be hidden when moving the mouse between series. Defaults to true for line and area type series, but to false for columns, pies etc.

        Defaults to: true

      • setTooltip

        public void setTooltip​(SeriesTooltip tooltip)
        A configuration object for the tooltip rendering of each single series. Properties are inherited from tooltip, but only the following properties can be defined on a series level.

      • setTurboThreshold

        public void setTurboThreshold​(Number turboThreshold)
        When a series contains a data array that is longer than this, only one dimensional arrays of numbers, or two dimensional arrays with x and y values are allowed. Also, only the first point is tested, and the rest are assumed to be the same format. This saves expensive data checking and indexing in long series. Set it to 0 disable.

        Defaults to: 1000

      • setVisible

        public void setVisible​(Boolean visible)
        Set the initial visibility of the series.

        Defaults to: true

      • setZoneAxis

        public void setZoneAxis​(ZoneAxis zoneAxis)
        Defines the Axis on which the zones are applied.

        Defaults to: y

      • setZones

        public void setZones​(Zones... zones)

        An array defining zones within a series. Zones can be applied to the X axis, Y axis or Z axis for bubbles, according to the zoneAxis option.

        In styled mode, the color zones are styled with the .highcharts-zone-{n} class, or custom classed from the className option (view live demo).

      • addZone

        public void addZone​(Zones zone)
        Adds zone to the zones array
        Parameters:
        zone - to add
        See Also:
        setZones(Zones...)

      • removeZone

        public void removeZone​(Zones zone)
        Removes first occurrence of zone in zones array
        Parameters:
        zone - to remove
        See Also:
        setZones(Zones...)