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 # XYZToBlackbodyTemperature 

 Last update: 17.07.2025 

## Description

Gets the blackbody temperature corresponding to the XYZ colorimetric coordinates.

Returns 1 if no error has occurred, -1 if the input data are not valid and 0 if it is impossible to calculate a temperature with the given input data.

## Syntax

*object*.XYZToBlackbodyTemperature(VARIANT\* vXYZ, VARIANT\* vTemperature) As Short

*object*: Virtual Photometric Lab object

- vXYZ: an array of 3 VARIANT of the XYZ colorimetric values
- vTemparature: the output data, the blackbody temperature, as a double ; If vTemperature is -1.0 so the calculation failed

## Example

Dim ColorXYZ, Temperature

ColorXYZ= XMPViewer.SurfaceRectangleColor(0, 0, 200, 200, 0)

MyVar= XMPViewer.XYZToBlackbodyTemperature(ColorXYZ, Temperature)

**Note:**

The last parameter of SurfaceRectangleColor() must be 0 if you want to use ColorXYZ result to calculate a color temperature.