SetTransferFunction Method

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Description

Set the transfer function (Colour Map) for use in Volume Rendering

Syntax

Visual Basic
Public Sub SetTransferFunction( _ ByVal Min As Single, _ ByVal Max As Single, _ ByVal Colours As Variant _ )

Visual Basic

Public Sub SetTransferFunction( _
   ByVal Min As Single, _
   ByVal Max As Single, _
   ByVal Colours As Variant _
)

Parameters

Min: The pixel value to be mapped to the first element of the Colours array
Max: The pixel value to be mapped to the last element of the Colours array
Colours: An array of Colour values

Remarks

The alpha values are central to Volume rendering, and it is important that "transparent" pixel ranges should be to colours with an alpha value < 1.

Pixel values less than the Min value are mapped to the first colour in the array and those greater than the Max value are mapped to the last value.