# Class RotateMultipleTool

GoJS® Diagramming Components
version 3.0.14
by Northwoods Software®

This is an extension and not part of the main GoJS library. Note that the API for this class may change at any time. If you intend to use an extension in production, you should copy the code to your own source directory. See the Extensions intro page for more information.

#### Hierarchy

- RotatingTool
  - RotateMultipleTool

The RotateMultipleTool class lets the user rotate multiple objects at a time. When more than one part is selected, rotates all parts, revolving them about their collective center. If the control key is held down during rotation, rotates all parts individually.

Caution: this only works for Groups that do not have a Placeholder.

If you want to experiment with this extension, try the Rotate Multiple sample.

#####
Index

### Constructors

constructor

### Methods

computeRotate
doActivate
doDeactivate
rotate

#####
Inherited Index

### Accessors

RotatingTool.adornedObject
RotatingTool.handle
RotatingTool.handleAngle
RotatingTool.handleArchetype
RotatingTool.handleDistance
RotatingTool.originalAngle
RotatingTool.rotationPoint
RotatingTool.snapAngleEpsilon
RotatingTool.snapAngleMultiple
Tool.diagram
Tool.isActive
Tool.isEnabled
Tool.name
Tool.transactionResult

### Methods

RotatingTool.canStart
RotatingTool.computeRotationPoint
RotatingTool.doCancel
RotatingTool.doMouseMove
RotatingTool.doMouseUp
RotatingTool.stopTransaction
RotatingTool.updateAdornments
Tool.canStartMultiTouch
Tool.cancelWaitAfter
Tool.doKeyDown
Tool.doKeyUp
Tool.doMouseDown
Tool.doMouseWheel
Tool.doStart
Tool.doStop
Tool.doWaitAfter
Tool.findToolHandleAt
Tool.isBeyondDragSize
Tool.standardMouseClick
Tool.standardMouseOver
Tool.standardMouseSelect
Tool.standardMouseWheel
Tool.standardPinchZoomMove
Tool.standardPinchZoomStart
Tool.standardWaitAfter
Tool.startTransaction
Tool.stopTool

## Constructors

### constructor

- new RotateMultipleTool(init?: Partial<RotateMultipleTool>): RotateMultipleTool

- Constructs a RotateMultipleTool and sets the name for the tool.

  #### Parameters

  - ##### `Optional` init: Partial<RotateMultipleTool>

  #### Returns RotateMultipleTool

## Methods

### `Override` computeRotate

- computeRotate(newPoint: Point): number

- Calculate the desired angle with different rotation points, depending on whether we are rotating the whole selection as one, or Parts individually.

  #### Parameters

  - ##### newPoint: Point

    in document coordinates

  #### Returns number

### `Override` doActivate

- doActivate(): void

- Calls go.RotatingTool.doActivate, and then remembers the center point of the collection, and the initial distances and angles of selected parts to the center.

  #### Returns void

### `Override` doDeactivate

- doDeactivate(): void

- Clean up any references to Parts.

  #### Returns void

### `Override` rotate

- rotate(newangle: number): void

- Rotate all selected objects about their collective center. When the control key is held down while rotating, all selected objects are rotated individually.

  #### Parameters

  - ##### newangle: number

  #### Returns void

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