Function: scaleRgbTransferFunction()

scaleRgbTransferFunction(rgbTransferFunction, scalingFactor): void

A utility that can be used to scale (in place) an RgbTransferFunction. We often use this to scale the transfer function based on a PET calculation.

Parameters

• rgbTransferFunction: vtkColorTransferFunction

• scalingFactor: number

void

Grabbing a reference to the RGB Transfer function from the viewport:

const rgbTransferFunction = viewport
  .getActor()
  .getProperty()
  .getRGBTransferFunction(0);

scaleRgbTransferFunction(rgbTransferFunction, 2);