RadarChart
Type
class An XY chart drawn in a circle: one axis runs around it (AxisRendererCircular), the other out from the center (AxisRendererRadial). Also used for gauges.
RadarCursor
Type
class Cursor for a RadarChart: a line out from the center and an arc around it that follow the pointer and show the axis and series tooltips.
RadialGradient
Type
class A gradient that changes color outward from a center point.
Rectangle
Type
class Draws a rectangle.
RectanglePattern
Type
class Rectangle pattern.
RelativeStrengthIndex
Type
class Relative Strength Index indicator: momentum from 0 to 100, comparing average gains with average losses over period. Drawn in a panel of its own.
ResetControl
Type
class A control that removes all drawings and indicators when clicked.
ResponsiveTheme
Type
class A theme that changes chart settings as the chart’s size changes, so charts fit small spaces. new() comes with built-in rules for the common chart types; newEmpty() starts with none, for rules of your own.
Role
Type
type ARIA roles an element can have.
Root
Type
class The root of a chart: it ties the chart to an HTML element and holds its global settings, formatters, locale and themes.