Function scalePolygon

scalePolygon(navigationState: NavigationState<TrackableZoomInterface>, annotationLayer: AnnotationLayerState, reference: AnnotationReference, scale: number): void
Takes a polygon annotation reference and scales the polygon wrt to its centroid.
Parameters
- navigationState: NavigationState<TrackableZoomInterface>
- annotationLayer: AnnotationLayerState
  
  Layer in which the polygon annotation is present.
- reference: AnnotationReference
  
  reference corresponding to the polygon.
- scale: number
  
  scale factor of the polygon (1.2 indicates 20% scale in polygon)
Returns void
- Defined in src/neuroglancer/annotation/polygon.ts:333