Protected ReadonlyobserversProtectedisProtected ReadonlyidProtected ReadonlytypeProtected ReadonlytitleProtected ReadonlyxProtected ReadonlyyProtected ReadonlyzProtected ReadonlynavigationProtected ReadonlylayerProtected ReadonlysupportsAbstract property that subclasses must implement to indicate extrema support
Protected ReadonlyrotorProtected ReadonlymovableProtected ReadonlypointsProtected ReadonlylineProtected ReadonlyhighlightProtectedhighlightProtected ReadonlyminProtected ReadonlymaxProtectedoutProtectedhighlightProtectedautoplayProtectedhasProtectedvaluesProtectedaudioProtectedbrailleProtectedtextProtecteddimensionGets the current state of the trace including audio, braille, text, and highlight information.
The current TraceState
ProtectedgetGets safe row and column indices to prevent accessing undefined values
Object with safe row and column indices
Registers an observer to receive state updates.
The observer to add
Removes an observer from receiving state updates.
The observer to remove
Notifies all registered observers with the current state.
Notifies observers that an out-of-bounds condition occurred.
Returns true if this trace supports compare (lower/higher value) navigation. Override to false for trace types that don't use compare modes (e.g., scatter, which is all we currently have).
Returns the display name for the default data navigation mode. Override to provide a trace-specific name (e.g., "ROW AND COLUMN NAVIGATION" for scatter).
Get all highlight SVG elements for this trace Used by HighlightService for high contrast mode
Array of all SVG elements, or empty array if none
Get all original (visible) SVG elements for this trace. These are the actual rendered elements, not the hidden clones used for highlighting. Used by HighlightService for high contrast mode color changes.
Array of all original SVG elements, or empty array if none
ProtectedgetResets the trace to initial entry state
ProtectedfinalizeCommon post-navigation cleanup that should be called by subclasses after they update their internal state
Checks if this plot supports extrema navigation.
True if extrema navigation is supported
Base implementation for getting current X value Subclasses can override if they have different data structures
Gets the unique identifier for this trace.
The trace ID
Moves to the nearest point at the specified coordinates (used for hover functionality).
The x-coordinate
The y-coordinate
Checks if the specified coordinates are within bounds of the element.
The x-coordinate
The y-coordinate
Object containing the SVG element and its position
True if the point is in bounds, false otherwise
Cleans up trace resources including values and highlighted SVG elements.
ProtectedmapOptionalselectors: string[]ProtectedmapGet extrema targets for the current line plot Returns min, max values, and intersection points within the current group
Array of extrema targets for navigation
Navigate to a specific extrema target
The extrema target to navigate to
ProtectedupdateUpdate the visual position of the current point This method should be called when navigation changes
Move the line plot to the position that matches the given X value
The X value to move to
true if the position was found and set, false otherwise
Base implementation of navigation in HIGHER and LOWER modes of ROTOR, default is no-op Needs to be implemented in Line, Bar, Heatmap, Candlestick
Utility function to compare point values for rotor functionality
boolean value
Intersection navigation mode is available only when the plot has
multiple lines. points is a 2-D array whose outer dimension is the line
index, so length > 1 means at least two lines exist — a prerequisite for
any crossing between sampled series to be possible.
Move to the next point intersection (right arrow in intersection rotor mode). Default is a no-op returning false; subclasses that advertise supportsIntersectionMode must override to provide real behavior.
Move to the previous point intersection (left arrow in intersection rotor mode). Default is a no-op returning false; subclasses that advertise supportsIntersectionMode must override to provide real behavior.
Represents a line trace plot with support for single and multi-line navigation