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VictoryVoronoiContainer

VictoryVoronoiContainer adds the ability to associate a mouse position with the data point(s) closest to it. When this container is added to a chart, changes in mouse position will add the active prop to to data and label components closest to the current mouse position. The closeness of data points to a given position is determined by calculating a voronoi diagram based on the data of every child VictoryVoronoiContainer renders. This container is useful for adding hover interactions, like tooltips, to small data points, or charts with very dense or overlapping data. Read [this guide] to learn how to use VictoryVoronoiContainer with tooltips.

VictoryVoronoiContainer may be used with any Victory component that works with an x-y coordinate system, and should be added as the containerComponent of the top-level component.

<VictoryChart containerComponent={<VictoryVoronoiContainer/>}>
  <VictoryLine data={data} />
  <VictoryBar data={moreData}/>
</VictoryChart>

Props

VictoryVoronoiContainer uses a superset of props used by VictoryContainer. All props are optional.

dimension

When the dimension prop is set, voronoi selection will only take the given dimension into account. For example, when dimension is set to “x”, all data points matching a particular x mouse position will be activated regardless of y value. When this prop is not given, voronoi selection is determined by both x any y values.

example: dimension="x"

radius

When the radius prop is set, the voronoi areas associated with each data point will be no larger than the given radius. This prop should be given as a number.

example: radius={25}

voronoiPadding

When the voronoiPadding prop is given, the area of the chart that will trigger voronoi events is reduced by the given padding on every side. By default, no padding is applied, and the entire range of a given chart may trigger voronoi events. This prop should be given as a number.

example: voronoiPadding={5}

onActivated

The onActivated prop accepts a function to be called whenever new data points are activated. The function is called with the parameter points– an array of data objects.

example: onActivated={(points) => filterList(points)}

onDeactivated

The onDeactivated prop accepts a function to be called whenever previously activated points are The function is called with the parameter points– an array of active data objects.

example: onDeactivated={(points) => filterList(points)}

labels

When a labels prop is provided to VictoryVoronoiContainer it will render a label component rather than activating labels on the child components it renders. This is useful for creating multi- point tooltips. This prop should be given as a function to be called with datum for each active point.

example: label={(d) => "y: " + d.y}

labelComponent

The labelComponent prop specified the component that will be rendered when labels are defined on VictoryVoronoiContainer. If the labels prop is omitted, no label component will be rendered.

default: labelComponent={<VictoryTooltip/>}

Standard Container Props

style

The style prop defines the style of the container, and should be given as an object of SVG style attributes. The width and height should be specified via props instead of style attributes as they determine relative layout for components.

example: style={{border: "1px solid #ccc"}}

default (provided by default theme): VictoryTheme.grayscale. See VictoryTheme for more detail.

responsive

The responsive prop specifies whether the rendered container should be a responsive container with a viewBox attribute, or a static container with absolute width and height.

default: responsive={true}

width and height

The width and height props determine the width and height of the containing <svg>. By default VictoryContainer renders responsive containers with the viewBox attribute set to viewBox="0, 0, width, height" and width="100%", height="auto". In responsive containers, the width and height props affect the aspect ratio of the rendered component, while the absolute width and height are determined by the container. To render a static container, set responsive={false}

example: width={350}

events

The events prop attaches arbitrary event handlers to the container element. This prop should be given as an object of event names and corresponding [React event handlers]. Events defined directly via this prop will be masked by defaultEvents on VictoryVoronoiContainer (onMouseMove and onMouseLeave), and by any events defined through Victory’s event system that target parent elements.

example: events={{onClick: (evt) => alert("x: " + evt.clientX)}}

title

The title prop specifies the title to be applied to the SVG to assist with accessibility for screen readers. The more descriptive this title is, the more useful it will be.

example: title="Popularity of Dog Breeds by Percentage"

desc

The desc prop specifies the description of the chart/SVG to assist with accessibility for screen readers. The more informative the description, the more usable it will be for people using screen readers.

example: desc="Golden retreivers make up 30%, Labs make up 25%, and other dog breeds are not represented above 5% each."

portalComponent

The portalComponent prop takes a component instance which will be used as a container for children that should render inside a top-level container so that they will always appear above other elements. VictoryTooltip renders inside a portal so that tooltips always render above data. VictoryPortal is used to define elements that should render in the portal container. This prop defaults to Portal, and should only be overridden when changing rendered elements from SVG to another type of element i.e. react-native-svg elements.

default: portalComponent={<Portal/>}

theme

The theme prop specifies a theme to use for determining styles and layout properties for a component. Any styles or props defined in theme may be overwritten by props specified on the component instance. By default, components use a grayscale theme. Read more about themes here.

example: theme={VictoryTheme.material}