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    Class LocatorGizmo

    Locator Gizmo class that provides visual coordinate axes for 3D objects. Displays X (red), Y (green), and Z (blue) axis lines to help visualize object orientation and position.

    Hierarchy (View Summary)

    Index

    Constructors

    Properties

    __engine: Engine
    __isVisible: boolean = false

    the target entity which this gizmo belong to

    The top entity of this gizmo group. A programmer who implements a gizmo class has to make this entity a child of the target entity's scene graph component that the gizmo will belong to manually.

    _tags: RnTags = {}

    Collection of tags associated with this object

    currentMaxObjectCount: number = 0

    Current maximum object count for UID generation

    InvalidObjectUID: -1

    Invalid object UID constant

    Accessors

    • get isSetup(): boolean

      Gets whether the gizmo has been properly set up and initialized.

      Returns boolean

      True if the gizmo is set up, false otherwise

    • get length(): number

      Gets the current length of the axis lines displayed by the gizmo.

      Returns number

      The current axis line length

    • set length(val: number): void

      Sets the length of the axis lines displayed by the gizmo.

      Parameters

      • val: number

        The length value for the axis lines

      Returns void

    • get objectUID(): number

      Gets the unique object identifier

      Returns number

      The object's UID

    • get uniqueName(): string

      Gets the unique name of this object

      Returns string

      The unique name string

    Methods

    • Internal method to set the visibility of the gizmo and all its child entities

      Parameters

      • flg: boolean

        True to show the gizmo, false to hide it

      Returns void

    • Internal

      Sets up the gizmo entities and mesh if not already done. Creates the coordinate axis visualization with colored lines representing X, Y, and Z axes.

      Returns void

    • Internal

      Updates the gizmo's transform properties to match the target object. Positions the gizmo at the target's center point and scales it based on the target's bounding box.

      Returns void

    • Retrieves a complete tag object (name and value) for the specified tag name

      Parameters

      • tagName: string

        The name of the tag to retrieve

      Returns Tag

      A Tag object containing the name and value

    • Retrieves the value associated with a specific tag name

      Parameters

      • tagName: string

        The name of the tag whose value to retrieve

      Returns any

      The tag value, or undefined if the tag doesn't exist

    • Checks whether this object has a tag with the specified name

      Parameters

      • tagName: string

        The name of the tag to check for

      Returns boolean

      True if the tag exists (value is not null/undefined), false otherwise

    • Checks if this object has a tag with the specified name and value

      Parameters

      • tagName: string

        The tag name to match

      • tagValue: string

        The tag value to match

      Returns boolean

      True if the object has a matching tag, false otherwise

    • Checks if this object has all the specified tags with exactly matching values

      Parameters

      • tags: RnTags

        Object containing tag names as keys and expected values

      Returns boolean

      True if all specified tags exist with matching values, false otherwise

    • Checks if the object's combined tag string contains all the provided search strings. This allows for flexible searching within tag names and values.

      Parameters

      • stringArray: string[]

        Array of strings that must all be present in the combined tag string

      Returns boolean

      True if all strings are found in the combined tag string, false otherwise

    • Applies appropriate tags to the gizmo entities for identification and categorization This method ensures that all gizmo entities are properly tagged for rendering and processing pipelines

      Returns void

    • Attempts to set a tag on this object. If the tag already exists, it will be replaced.

      Parameters

      • tag: Tag

        The tag object containing the name and value to set

      Returns boolean

      True if the tag was successfully set, false if the tag name contains invalid characters

    • Attempts to set a unique name for this object

      Parameters

      • name: string

        The desired unique name

      • toAddNameIfConflict: boolean

        If true, appends UID to make name unique when conflicts occur; if false, fails on conflict

      Returns boolean

      True if the name was successfully set, false if there was a conflict and toAddNameIfConflict was false

    • Validates that a tag string contains only allowed characters (alphanumeric and underscore)

      Parameters

      • val: string

        The string to validate

      Returns boolean

      True if the string contains only valid characters, false if it contains invalid characters

    • Internal

      Cleans up all static resources for a specific Engine. This resets static members so that gizmos can be recreated with a new Engine. Called from Engine.destroy()

      Parameters

      Returns void

    • Retrieves an RnObject instance by its unique identifier

      Parameters

      • objectUid: number

        The unique identifier of the object to retrieve

      Returns RnObject | undefined

      The RnObject instance or undefined if not found or garbage collected

    • Retrieves an RnObject instance by its unique name

      Parameters

      • uniqueName: string

        The unique name of the object to retrieve

      Returns RnObject | undefined

      The RnObject instance or undefined if not found or garbage collected

    • Searches for the first object that has a specific tag with the given value

      Parameters

      • tag: string

        The tag name to search for

      • value: string

        The tag value to match

      Returns WeakRef<RnObject> | undefined

      WeakRef to the first matching object, or undefined if not found