Edit this page

VictoryArea

VictoryArea renders a dataset as a single area. VictoryArea can be composed with VictoryChart to create area charts.

Props

data

Specify data via the data prop. By default, Victory components expect data as an array of objects with x and y properties. Use the x and y data accessor props to define a custom data format. The data prop must be given as an array.

<VictoryArea
  data={[
    {month: "September", profit: 35000, loss: 2000},
    {month: "October", profit: 42000, loss: 8000},
    {month: "November", profit: 55000, loss: 5000}
  ]}
  x="month"
  y={(datum) => datum.profit - datum.loss}
/>

x and y

Use the x and y data accessor props to determine how the component defines data in the x and y dimensions. These props may be given in a variety of formats:

string: specify which property in an array of data objects should be used as the x or y value

examples: x="month", y="profit"

function: use a function to translate each element in a data array into an x or y value

examples: y={(datum) => Math.sin(2 * Math.PI * datum.x)}

array index: specify which index of an array should be used as an x or y value when data is given as an array of arrays

examples: x={0} , y={1}

path string or path array: specify which property in an array of nested data objects should be used an an x or y value

examples: y="employees.salary", y={["employees", "salary"]}

sortKey

Use the sortKey prop to indicate how data should be sorted. This prop is given directly to the lodash sortBy function to be executed on the final dataset.

This prop can be provided as a string, function, or array of either.

examples: sortKey="x", sortKey={["age", "height"]}

samples

The samples prop specifies how many individual points to plot when plotting y as a function of x. The samples prop is ignored if data is supplied in props.

default: samples={50}

categories

The categories prop specifies how categorical data for a chart should be ordered. This prop should be given as an array of string values, or an object with these arrays of values specified for x and y. If this prop is not set, categorical data will be plotted in the order it was given in the data array.

examples: categories={["dogs", "cats", "mice"]}

style

The style prop defines the style of the component. The style prop should be given as an object with styles defined for data, labels and parent. Any valid svg styles are supported, but width, height, and padding should be specified via props as they determine relative layout for components in VictoryChart.

style={{
  data: {fill: "tomato", opacity: 0.7},
  labels: {fontSize: 12},
  parent: {border: "1px solid #ccc"}
}}

note: When a component is rendered as a child of another Victory component, or within a custom <svg> element with standalone={false} parent styles will be applied to the enclosing <g> tag. Many styles that can be applied to a parent <svg> will not be expressed when applied to a <g>.

note: custom angle and verticalAnchor properties maybe included in labels styles.

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

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.

default: theme={VictoryTheme.grayscale}

width and height

The width and height props determine the width and height of the containing <svg>. By default Victory components render 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, pass responsive={false} to the containerComponent like containerComponent={<VictoryContainer responsive={false}/>}, or set standalone={false} and render the resulting <g> tag in your own <svg> container. When a component is nested within VictoryChart, VictoryStack, or VictoryGroup setting width and height props on the child component will have no effect.

default (provided by default theme): width={450} height={300}

padding

The padding prop specifies the amount of padding in number of pixels between the edge of the chart and any rendered child components. This prop can be given as a number or as an object with padding specified for top, bottom, left and right. As with width and height, the absolute padding will depend on whether the component is rendered in a responsive container. When a component is nested within VictoryChart, VictoryStack, or VictoryGroup setting padding on the child component will have no effect.

examples: padding={{top: 20, bottom: 60}} or padding={40}

default (provided by default theme): padding={50}

standalone

The standalone props specifies whether the component should be rendered in a independent <svg> element or in a <g> tag. This prop defaults to true, and renders an svg, however, wrapper components like VictoryChart, VictoryStack, and VictoryGroup force children to use standalone={false}.

default: standalone={true}

interpolation

The interpolation prop determines how data points should be connected when creating a path. The following options are supported: “basis”, “bundle”, “cardinal”, “catmullRom”, “linear”, “linearClosed”, “monotoneX”, “monotoneY”, “natural”, “radial”, “step”, “stepAfter”, “stepBefore”.

default: "linear"

scale

The scale prop determines which scales your chart should use. This prop can be given as a string specifying a supported scale (“linear”, “time”, “log”, “sqrt”), or as an object with scales specified for x and y. For “time” scales, data points should be Date objects or getTime() ints.

examples: scale="time", scale={{x: "linear", y: "log"}}

default: scale="linear"

domain

The domain prop describes the range of data the component will include. This prop can be given as a array of the minimum and maximum expected values of the data or as an object that specifies separate arrays for x and y. If this prop is not provided, a domain will be calculated from data, or other available information.

examples: domain={[-1, 1]} domain={{x: [0, 100], y: [0, 1]}}

domainPadding

The domainPadding prop specifies a number of pixels of padding to add the beginning or end of a domain. This prop is useful for explicitly spacing data elements farther from the beginning or end of a domain to prevent axis crowding. When given as a single number, domainPadding will be applied to the upper and lower bound of both the x and y domains. This prop may also be given as an object with numbers or two-element arrays specified for x and y. When specifying arrays for domainPadding, the first element of the array will specify the padding to be applied to domain minimum, and the second element will specify padding the be applied to domain maximum.

examples: domainPadding={20}, domainPadding={{x: [20, 0]}}

note: Values supplied for domainPadding will be coerced so that padding a domain will never result in charts including an additonal quadrant. For example, if an original domain included only positive values, domainPadding will be coerced so that the resulted padded domain will not include negative values.

label

DEPRECATED use labels instead

The label prop defines the label that will appear at the edge of the area. This prop should be given a string or as a function of data. If individual labels are required for each data point, they should be created by composing VictoryArea with VictoryScatter.

examples: label="Series 1" , label={(data) => "years x " + data.length }

labels

The labels prop defines the labels that will appear above each point. This prop should be given as an array or as a function of data.

examples: labels="Series 1" , labels={(datum) => datum.y}

labelComponent

The labelComponent prop takes a component instance which will be used to render a label for the area. The new element created from the passed labelComponent will be supplied with the following properties: x, y, index, data, verticalAnchor, textAnchor, angle, style, text, and events. Any of these props may be overridden by passing in props to the supplied component, or modified or ignored within the custom component itself. If labelComponent is omitted, a new VictoryLabel will be created with the props described above. This labelComponent prop should be used to provide a series label for VictoryArea. If individual labels are required for each data point, they should be created by composing VictoryArea with VictoryScatter.

examples: labelComponent={<VictoryLabel dy={20}/>}, labelComponent={<MyCustomLabel/>}

default: <VictoryLabel/>

dataComponent

The dataComponent prop takes a component instance which will be responsible for rendering a data element. The new element created from the passed dataComponent will be provided with the following properties calculated by VictoryArea: a scale, style, events, interpolation, and an array of modified data objects (including x, y, and calculated y0 and y1). Any of these props may be overridden by passing in props to the supplied component, or modified or ignored within the custom component itself. If a dataComponent is not provided, VictoryArea will use its default Area component.

examples: dataComponent={<Area events={{onClick: () => console.log("wow")}}/>}, dataComponent={<MyCustomArea/>}

default: <Area/>

containerComponent

The containerComponent prop takes a component instance which will be used to create a container element for standalone charts. The new element created from the passed containerComponent will be provided with the following props: height, width, children (the chart itself) and style. If a containerComponent is not provided, the default VictoryContainer component will be used. VictoryContainer supports title and desc props, which are intended to add accessibility to Victory components. The more descriptive these props are, the more accessible your data will be for people using screen readers. These props may be set by passing them directly to the supplied component. By default, VictoryContainer renders a responsive svg using the viewBox attribute. To render a static container, set responsive={false} directly on the instance of VictoryContainer supplied via the containerComponent prop. VictoryContainer also renders a Portal element that may be used in conjunction with VictoryPortal to force components to render above other children.

examples: containerComponent={<VictoryContainer responsive={false} title="Chart of Q1 Profit/>}

default: containerComponent={<VictoryContainer/>}

groupComponent

The groupComponent prop takes a component instance which will be used to create group elements for use within container elements. This prop defaults to VictoryClipContainer, a component which renders a <g> tag or a <g> tag with a clipPath def depending on whether the component should animate. This allows continuous data components to transition smoothly when new data points enter and exit.

default: groupComponent={<VictoryClipContainer/>}

animate

The animate prop specifies props for VictoryAnimation and VictoryTransition to use. The animate prop may be used to specify the duration, delay, and easing of an animation as well as the behavior of onEnter and onExit and onLoad transitions. Each Victory component defines its own default transitions, be these may be modified, or overwritten with the animate prop.

examples: animate={{duration: 2000, onLoad: {duration: 1000}, onEnter: {duration: 500, before: () => ({y: 0})})}

events

The events prop takes an array of event objects. Event objects are composed of a target, an eventKey, and eventHandlers. Targets may be any valid style namespace for a given component, so “data” and “labels” are valid targets for this component. Since VictoryArea only renders a single element, the eventKey property is not used. The eventHandlers object should be given as an object whose keys are standard event names (i.e. onClick) and whose values are event callbacks. The return value of an event handler is used to modify elemnts. The return value should be given as an object or an array of objects with optional target and eventKey keys for specifying the element(s) to be modified, and a mutation key whose value is a function. The target and eventKey keys will default to those corresponding to the element the event handler was attached to. The mutation function will be called with the calculated props for each element that should be modified (i.e. an area), and the object returned from the mutation function will override the props of that element via object assignment.

examples:

 events={[
  {
    target: "data",
    eventHandlers: {
      onClick: () => {
        return [
          {
            mutation: (props) => {
              return {
                style: Object.assign({}, props.style, {fill: "orange"})
              };
            }
          }, {
            target: "labels",
            mutation: () => {
              return {text: "hey"};
            },
            callback: () => {
              console.log("I happen after setState");
            }
          }
        ];
      }
    }
  }
 ]}

eventKey

The eventKey prop is used to assign eventKeys to data. This prop operates identically to the x and y data accessor props. By default, the eventKey of each datum will be equal to its index in the data array.

sharedEvents

The sharedEvents prop is used to coordinate events between Victory components using VictorySharedEvents. This prop should not be set manually.

name

The name prop is used to reference a component instance when defining shared events.