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Class: VolumeCroppingTool

VolumeCroppingTool provides manipulatable spheres and real-time volume cropping capabilities. It renders interactive handles (spheres) at face centers and corners of a cropping box, allowing users to precisely adjust volume boundaries through direct manipulation in 3D space.

Remarks​

This tool creates a complete 3D cropping interface with:

  • 6 face spheres for individual axis cropping
  • 8 corner spheres for multi-axis cropping
  • 12 edge lines connecting corner spheres
  • Real-time clipping plane updates
  • Synchronization with VolumeCroppingControlTool working on the same series instance UID for cross-viewport interaction

Example​

// Basic setup
const toolGroup = ToolGroupManager.createToolGroup('volume3D');
toolGroup.addTool(VolumeCroppingTool.toolName);

// Configure with custom settings
toolGroup.setToolConfiguration(VolumeCroppingTool.toolName, {
  showCornerSpheres: true,
  showHandles: true,
  initialCropFactor: 0.1,
  sphereColors: {
    SAGITTAL: [1.0, 1.0, 0.0], // Yellow for sagittal (X-axis) spheres
    CORONAL: [0.0, 1.0, 0.0], // Green for coronal (Y-axis) spheres
    AXIAL: [1.0, 0.0, 0.0], // Red for axial (Z-axis) spheres
    CORNERS: [0.0, 0.0, 1.0] // Blue for corner spheres
  },
  sphereRadius: 10,
  grabSpherePixelDistance: 25
});

// Activate the tool
toolGroup.setToolActive(VolumeCroppingTool.toolName);

// Programmatically control visibility
const tool = toolGroup.getToolInstance(VolumeCroppingTool.toolName);
tool.setHandlesVisible(true);
tool.setClippingPlanesVisible(true);

// Toggle visibility for interactive UI
function toggleCroppingInterface() {
  const handlesVisible = tool.getHandlesVisible();
  const planesVisible = tool.getClippingPlanesVisible();

  // Toggle handles (spheres and edge lines)
  tool.setHandlesVisible(!handlesVisible);

  // Toggle clipping effect
  tool.setClippingPlanesVisible(!planesVisible);

  console.log(`Handles: ${!handlesVisible ? 'shown' : 'hidden'}`);
  console.log(`Cropping: ${!planesVisible ? 'active' : 'disabled'}`);
}

// Common UI scenarios
// Show handles but disable cropping (for positioning)
tool.setHandlesVisible(true);
tool.setClippingPlanesVisible(false);

// Hide handles but keep cropping active (for clean view)
tool.setHandlesVisible(false);
tool.setClippingPlanesVisible(true);

VolumeCroppingTool

Configuration​

Events​

VOLUMECROPPING_TOOL_CHANGED - Fired when sphere positions change or clipping planes are updated VOLUMECROPPINGCONTROL_TOOL_CHANGED - Listens for changes from VolumeCroppingControlTool VOLUME_VIEWPORT_NEW_VOLUME - Listens for new volume loading to reinitialize cropping bounds TOOLGROUP_VIEWPORT_ADDED - Listens for new viewport additions to extend resize observation

Methods​

  • setHandlesVisible(visible: boolean): Show/hide manipulation spheres and edge lines
  • setClippingPlanesVisible(visible: boolean): Enable/disable volume clipping planes
  • getHandlesVisible(): Get current handle visibility state
  • getClippingPlanesVisible(): Get current clipping plane visibility state

See​

Extends​

Constructors​

new VolumeCroppingTool()​

new VolumeCroppingTool(toolProps, defaultToolProps): VolumeCroppingTool

Parameters​

• toolProps: PublicToolProps = {}

• defaultToolProps: SharedToolProp = ...

Returns​

VolumeCroppingTool

Overrides​

BaseTool.constructor

Defined in​

tools/src/tools/VolumeCroppingTool.ts:227

Properties​

_hasResolutionChanged​

_hasResolutionChanged: boolean = false

Flag tracking if rendering resolution has been modified during interaction

Defined in​

tools/src/tools/VolumeCroppingTool.ts:201

_resizeObservers​

_resizeObservers: Map<any, any>

Map of ResizeObserver instances for viewport resize handling

Defined in​

tools/src/tools/VolumeCroppingTool.ts:199

_viewportAddedListener()​

_viewportAddedListener: (evt) => void

Event listener for new viewport additions

Parameters​

• evt: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:200

cleanUp()​

cleanUp: () => void

Cleanup function for resetting tool state after interactions

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:198

configuration​

configuration: Record<string, any>

Inherited from​

BaseTool.configuration

Defined in​

tools/src/tools/base/BaseTool.ts:19

cornerDragOffset​

cornerDragOffset: [number, number, number] = null

3D offset vector for corner sphere dragging [dx, dy, dz]

Defined in​

tools/src/tools/VolumeCroppingTool.ts:205

draggingSphereIndex​

draggingSphereIndex: number = null

Index of currently dragged sphere, null when not dragging

Defined in​

tools/src/tools/VolumeCroppingTool.ts:203

edgeLines​

edgeLines: object = {}

Dictionary of edge line actors connecting corner spheres for wireframe visualization

Index Signature​

[uid: string]: object

Defined in​

tools/src/tools/VolumeCroppingTool.ts:218

faceDragOffset​

faceDragOffset: number = null

1D offset value for face sphere dragging along single axis

Defined in​

tools/src/tools/VolumeCroppingTool.ts:206

memo​

protected memo: Memo

A memo recording the starting state of a tool. This will be updated as changes are made, and reflects the fact that a memo has been created.

Inherited from​

BaseTool.memo

Defined in​

tools/src/tools/base/BaseTool.ts:28

mode​

mode: ToolModes

Tool Mode - Active/Passive/Enabled/Disabled/

Inherited from​

BaseTool.mode

Defined in​

tools/src/tools/base/BaseTool.ts:23

mouseDragCallback()​

mouseDragCallback: (evt) => void

Mouse drag event handler for desktop interactions

Parameters​

• evt: InteractionEventType

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:197

originalClippingPlanes​

originalClippingPlanes: object[] = []

Array of clipping plane objects with origin and normal vectors

Defined in​

tools/src/tools/VolumeCroppingTool.ts:202

seriesInstanceUID?​

optional seriesInstanceUID: string

Frame of reference for the tool

Defined in​

tools/src/tools/VolumeCroppingTool.ts:195

sphereStates​

sphereStates: object[] = []

Array of sphere state objects containing position, VTK actors, and metadata

Defined in​

tools/src/tools/VolumeCroppingTool.ts:208

supportedInteractionTypes​

supportedInteractionTypes: InteractionTypes[]

Supported Interaction Types - currently only Mouse

Inherited from​

BaseTool.supportedInteractionTypes

Defined in​

tools/src/tools/base/BaseTool.ts:17

toolCenter​

toolCenter: Point3

Center point of the cropping volume in world coordinates [x, y, z]

Defined in​

tools/src/tools/VolumeCroppingTool.ts:204

toolGroupId​

toolGroupId: string

ToolGroup ID the tool instance belongs to

Inherited from​

BaseTool.toolGroupId

Defined in​

tools/src/tools/base/BaseTool.ts:21

touchDragCallback()​

touchDragCallback: (evt) => void

Touch drag event handler for mobile interactions

Parameters​

• evt: InteractionEventType

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:196

defaults​

static defaults: object

Has the defaults associated with the base tool.

configuration​

configuration: object

configuration.activeStrategy​

activeStrategy: any = undefined

configuration.defaultStrategy​

defaultStrategy: any = undefined

configuration.strategies​

strategies: object = {}

configuration.strategyOptions​

strategyOptions: object = {}

Inherited from​

BaseTool.defaults

Defined in​

tools/src/tools/base/BaseTool.ts:33

toolName​

static toolName: any

Static tool identifier: 'VolumeCropping'

Overrides​

BaseTool.toolName

Defined in​

tools/src/tools/VolumeCroppingTool.ts:194

Accessors​

toolName​

get toolName(): string

Newer method for getting the tool name as a property

Returns​

string

Inherited from​

BaseTool.toolName

Defined in​

tools/src/tools/base/BaseTool.ts:82

Methods​

_addLine3DBetweenPoints()​

_addLine3DBetweenPoints(viewport, point1, point2, color, uid): object

Parameters​

• viewport: any

• point1: any

• point2: any

• color: [number, number, number] = ...

• uid: string = ''

Returns​

object

actor​

actor: vtkActor

source​

source: vtkPolyData = polyData

Defined in​

tools/src/tools/VolumeCroppingTool.ts:936

_addSphere()​

_addSphere(viewport, point, axis, position, cornerKey, adaptiveRadius): void

Parameters​

• viewport: any

• point: any

• axis: any

• position: any

• cornerKey: any = null

• adaptiveRadius: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:982

_calculateAdaptiveSphereRadius()​

_calculateAdaptiveSphereRadius(diagonal): number

Calculate an adaptive sphere radius based on the diagonal of the volume. This allows the sphere size to scale with the volume size.

Parameters​

• diagonal: any

The diagonal length of the volume in world coordinates.

Returns​

number

The calculated adaptive radius, clamped between min and max limits.

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1050

_calculateNewCornerPosition()​

_calculateNewCornerPosition(world): any[]

Parameters​

• world: any

Returns​

any[]

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1343

_dragCallback()​

_dragCallback(evt): void

Parameters​

• evt: InteractionEventType

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:621

_getViewport()​

_getViewport(): Viewport

Returns​

Viewport

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1300

_getViewportAndWorldCoords()​

_getViewportAndWorldCoords(evt): object

Parameters​

• evt: any

Returns​

object

viewport​

viewport: Viewport

world​

world: Point3

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1291

_getViewportsInfo()​

_getViewportsInfo(): any[]

Returns​

any[]

Defined in​

tools/src/tools/VolumeCroppingTool.ts:977

_handleCornerSphereMovement()​

_handleCornerSphereMovement(sphereState, world, viewport): void

Parameters​

• sphereState: any

• world: any

• viewport: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1307

_handleFaceSphereMovement()​

_handleFaceSphereMovement(sphereState, world, viewport): void

Parameters​

• sphereState: any

• world: any

• viewport: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1325

_initialize3DViewports()​

_initialize3DViewports(viewportsInfo): void

Parameters​

• viewportsInfo: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1068

_onControlToolChange()​

_onControlToolChange(evt): void

Parameters​

• evt: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:759

_onMouseMoveSphere()​

_onMouseMoveSphere(evt): boolean

Parameters​

• evt: any

Returns​

boolean

Defined in​

tools/src/tools/VolumeCroppingTool.ts:702

_onNewVolume()​

_onNewVolume(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1655

_parseCornerKey()​

_parseCornerKey(uid): object

Parameters​

• uid: any

Returns​

object

isXMax​

isXMax: any

isXMin​

isXMin: any

isYMax​

isYMax: any

isYMin​

isYMin: any

isZMax​

isZMax: any

isZMin​

isZMin: any

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1358

_rotateCamera()​

_rotateCamera(viewport, centerWorld, axis, angle): void

Parameters​

• viewport: any

• centerWorld: any

• axis: any

• angle: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1693

_shouldUpdateCorner()​

_shouldUpdateCorner(cornerKey, axisFlags): any

Parameters​

• cornerKey: any

• axisFlags: any

Returns​

any

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1394

_subscribeToViewportNewVolumeSet()​

_subscribeToViewportNewVolumeSet(viewports): void

Parameters​

• viewports: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1678

_triggerToolChangedEvent()​

_triggerToolChangedEvent(sphereState): void

Parameters​

• sphereState: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1452

_unsubscribeToViewportNewVolumeSet()​

_unsubscribeToViewportNewVolumeSet(viewportsInfo): void

Parameters​

• viewportsInfo: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1663

_updateAfterCornerMovement()​

_updateAfterCornerMovement(viewport): void

Parameters​

• viewport: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1437

_updateAfterFaceMovement()​

_updateAfterFaceMovement(viewport): void

Parameters​

• viewport: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1444

_updateClippingPlanes()​

_updateClippingPlanes(viewport): void

Parameters​

• viewport: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:849

_updateClippingPlanesFromFaceSpheres()​

_updateClippingPlanesFromFaceSpheres(viewport): void

Parameters​

• viewport: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1461

_updateCornerCoordinates()​

_updateCornerCoordinates(state, newCorner, cornerKey, axisFlags): void

Parameters​

• state: any

• newCorner: any

• cornerKey: any

• axisFlags: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1406

_updateCornerSpheres()​

_updateCornerSpheres(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1606

_updateCornerSpheresFromFaces()​

_updateCornerSpheresFromFaces(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1503

_updateFaceSpheresFromCorners()​

_updateFaceSpheresFromCorners(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1536

_updateHandlesVisibility()​

_updateHandlesVisibility(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:920

_updateRelatedCorners()​

_updateRelatedCorners(draggedSphere, newCorner, axisFlags): void

Parameters​

• draggedSphere: any

• newCorner: any

• axisFlags: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1378

_updateSpherePosition()​

_updateSpherePosition(sphereState, newPosition): void

Parameters​

• sphereState: any

• newPosition: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:1371

applyActiveStrategy()​

applyActiveStrategy(enabledElement, operationData): any

Applies the active strategy function to the enabled element with the specified operation data.

Parameters​

• enabledElement: IEnabledElement

The element that is being operated on.

• operationData: unknown

The data that needs to be passed to the strategy.

Returns​

any

The result of the strategy.

Inherited from​

BaseTool.applyActiveStrategy

Defined in​

tools/src/tools/base/BaseTool.ts:102

applyActiveStrategyCallback()​

applyActiveStrategyCallback(enabledElement, operationData, callbackType, ...extraArgs): any

Applies the active strategy, with a given event type being applied. The event type function is found by indexing it on the active strategy function.

Parameters​

• enabledElement: IEnabledElement

The element that is being operated on.

• operationData: unknown

The data that needs to be passed to the strategy.

• callbackType: string

the type of the callback

• ...extraArgs: any[]

Returns​

any

The result of the strategy.

Inherited from​

BaseTool.applyActiveStrategyCallback

Defined in​

tools/src/tools/base/BaseTool.ts:126

doneEditMemo()​

doneEditMemo(): void

This clears and edit memo storage to allow for further history functions to be called. Calls the complete function if present, and pushes the memo to the history memo stack.

This should be called when a tool has finished making a change which should be separated from future/other changes in terms of the history. Usually that means on endCallback (mouse up), but some tools also make changes on the initial creation of an object or have alternate flows and the doneEditMemo has to be called on mouse down or other initiation events to ensure that new changes are correctly recorded.

If the tool has no end callback, then the doneEditMemo is called from the pre mouse down callback. See ZoomTool for an example of this usage.

Returns​

void

Inherited from​

BaseTool.doneEditMemo

Defined in​

tools/src/tools/base/BaseTool.ts:305

getClippingPlanesVisible()​

getClippingPlanesVisible(): any

Gets the current visibility state of the clipping planes.

Returns​

any

Whether the clipping planes are currently visible and actively cropping the volume

Example​

// Check if clipping planes are currently active
const planesVisible = volumeCroppingTool.getClippingPlanesVisible();
if (planesVisible) {
  console.log('Volume is currently being cropped');
} else {
  console.log('Volume is displayed in full');
}

Remarks​

This method returns the configuration state that controls whether:

  • The volume rendering respects the current clipping plane boundaries
  • Parts of the volume outside the crop bounds are hidden from view
  • The cropping effect is applied to the 3D volume visualization

Defined in​

tools/src/tools/VolumeCroppingTool.ts:585

getHandlesVisible()​

getHandlesVisible(): any

Gets the current visibility state of the cropping handles.

Returns​

any

Whether the cropping handles (spheres and edge lines) are currently visible

Example​

// Check if handles are currently visible
const handlesVisible = volumeCroppingTool.getHandlesVisible();
if (handlesVisible) {
  console.log('Cropping handles are currently shown');
} else {
  console.log('Cropping handles are currently hidden');
}

Remarks​

This method returns the configuration state, which controls the visibility of:

  • Face spheres (6 spheres for individual axis cropping)
  • Corner spheres (8 spheres for multi-axis cropping)
  • Edge lines connecting the corner spheres

Defined in​

tools/src/tools/VolumeCroppingTool.ts:559

getTargetId()​

protected getTargetId(viewport): string

Get the target Id for the viewport which will be used to store the cached statistics scoped to that target in the annotations. For StackViewport, targetId is the viewportId, but for the volume viewport, the targetId will be grabbed from the volumeId if particularly specified in the tool configuration, or if not, the first actorUID in the viewport.

Parameters​

• viewport: Viewport

viewport to get the targetId for

Returns​

string

targetId

Inherited from​

BaseTool.getTargetId

Defined in​

tools/src/tools/base/BaseTool.ts:238

getTargetImageData()​

protected getTargetImageData(targetId): IImageData | CPUIImageData

Get the image that is displayed for the targetId in the cachedStats which can be

  • imageId:<imageId>
  • volumeId:<volumeId>
  • videoId:<basePathForVideo>/frames/<frameSpecifier>

Parameters​

• targetId: string

annotation targetId stored in the cached stats

Returns​

IImageData | CPUIImageData

The image data for the target.

Inherited from​

BaseTool.getTargetImageData

Defined in​

tools/src/tools/base/BaseTool.ts:181

getToolName()​

getToolName(): string

Returns the name of the tool

Returns​

string

The name of the tool.

Inherited from​

BaseTool.getToolName

Defined in​

tools/src/tools/base/BaseTool.ts:90

onCameraModified()​

onCameraModified(evt): void

Parameters​

• evt: any

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:358

onSetToolActive()​

onSetToolActive(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:257

onSetToolConfiguration()​

onSetToolConfiguration(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:329

onSetToolDisabled()​

onSetToolDisabled(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:338

onSetToolEnabled()​

onSetToolEnabled(): void

Returns​

void

Defined in​

tools/src/tools/VolumeCroppingTool.ts:334

preMouseDownCallback()​

preMouseDownCallback(evt): boolean

Parameters​

• evt: InteractionEventType

Returns​

boolean

Defined in​

tools/src/tools/VolumeCroppingTool.ts:367

redo()​

redo(): void

Redo an action (undo the undo)

Returns​

void

Inherited from​

BaseTool.redo

Defined in​

tools/src/tools/base/BaseTool.ts:261

setActiveStrategy()​

setActiveStrategy(strategyName): void

Sets the active strategy for a tool. Strategies are multiple implementations of tool behavior that can be switched by tool configuration.

Parameters​

• strategyName: string

name of the strategy to be set as active

Returns​

void

Inherited from​

BaseTool.setActiveStrategy

Defined in​

tools/src/tools/base/BaseTool.ts:167

setClippingPlanesVisible()​

setClippingPlanesVisible(visible): void

Sets the visibility of the clipping planes to enable or disable volume cropping.

When clipping planes are visible, the volume rendering is cropped according to the current sphere positions. When disabled, the full volume is displayed without cropping. The viewport is automatically re-rendered after the change.

Parameters​

• visible: boolean

Whether to enable (true) or disable (false) volume clipping

Returns​

void

Example​

// Enable volume cropping
volumeCroppingTool.setClippingPlanesVisible(true);

// Disable volume cropping to show full volume
volumeCroppingTool.setClippingPlanesVisible(false);

Remarks​

  • When enabled, parts of the volume outside the crop bounds are hidden
  • When disabled, all clipping planes are removed from the volume mapper
  • The cropping bounds are determined by the current sphere positions
  • The viewport is automatically re-rendered to reflect the change
  • This method updates the internal configuration and applies changes immediately

Defined in​

tools/src/tools/VolumeCroppingTool.ts:614

setConfiguration()​

setConfiguration(newConfiguration): void

merges the new configuration with the tool configuration

Parameters​

• newConfiguration: Record<string, any>

Returns​

void

Inherited from​

BaseTool.setConfiguration

Defined in​

tools/src/tools/base/BaseTool.ts:153

setHandlesVisible()​

setHandlesVisible(visible): void

Sets the visibility of the cropping handles (spheres and edge lines).

When handles are being shown, this method automatically synchronizes the sphere positions with the current clipping plane positions to ensure visual consistency. This includes updating face spheres, corner spheres, and edge lines to match the current crop bounds.

Parameters​

• visible: boolean

Whether to show or hide the cropping handles

Returns​

void

Example​

// Hide all cropping handles
volumeCroppingTool.setHandlesVisible(false);

// Show handles and sync with current crop state
volumeCroppingTool.setHandlesVisible(true);

Defined in​

tools/src/tools/VolumeCroppingTool.ts:490

undo()​

undo(): void

Undoes an action

Returns​

void

Inherited from​

BaseTool.undo

Defined in​

tools/src/tools/base/BaseTool.ts:251

createZoomPanMemo()​

static createZoomPanMemo(viewport): object

Creates a zoom/pan memo that remembers the original zoom/pan position for the given viewport.

Parameters​

• viewport: any

Returns​

object

restoreMemo()​

restoreMemo: () => void

Returns​

void

Inherited from​

BaseTool.createZoomPanMemo

Defined in​

tools/src/tools/base/BaseTool.ts:269

endGroupRecording()​

static endGroupRecording(): void

Ends a group recording of history memo

Returns​

void

Inherited from​

BaseTool.endGroupRecording

Defined in​

tools/src/tools/base/BaseTool.ts:318

mergeDefaultProps()​

static mergeDefaultProps(defaultProps, additionalProps?): any

Does a deep merge of property options. Allows extending the default values for a child class.

Parameters​

• defaultProps = {}

this is a base set of defaults to merge into

• additionalProps?: any

the additional properties to merge into the default props

Returns​

any

defaultProps if additional props not defined, or a merge into a new object containing additionalProps adding onto and overriding defaultProps.

Inherited from​

BaseTool.mergeDefaultProps

Defined in​

tools/src/tools/base/BaseTool.ts:72

startGroupRecording()​

static startGroupRecording(): void

Starts a group recording of history memo, so that with a single undo you can undo multiple actions that are related to each other

Returns​

void

Inherited from​

BaseTool.startGroupRecording

Defined in​

tools/src/tools/base/BaseTool.ts:313