sunrise

The sunrise function determines the Coordinated Universal Time when the sun just rises above the horizon.

sundiagram

The sundiagram function creates an illustration of the sun path over the year for a specific geographic location.

suntime

The suntime function calculates the Coordinated Universal Time or local time for a given sun position and geographic location.

huename

The huename functions allows it to rename Philips HUE devices.

hueadd

The hueadd function adds Philips HUE devices to a HUE bridge using their device ID.

huesearch

The huesearch function looks for new Philips HUE devices and adds them to a specified HUE bridge.

hueset

The hueset function allows it to alter the state of Philips HUE devices.

huecon

The huecon function list all available Philips HUE bridges.

huenew

The huenew function creates a new connection to a Philips HUE bridge. The new connection will be appended to already existing connections, which allows controlling several bridges independently.

huelamps

The huelamps function lists all available Philips HUE lamps and their status connected to a specific HUE bridge.

specsky

Creates spectral radiance data for a Tregenza hemisphere with 145 patches for CIE sky types 3 and 12

plotpolarCCT

Calculates and plots the resulting horizontal and vertical Correlated Colour Temperatures from the Tregenza luminance distribution with 145 patches

plotpolarE

Calculates the resulting horizontal and vertical illuminances for a given Tregenza luminance distribution with 145 patches

cieCAM02inv

Determines the colour appearance model parameters of the CIECAM02 inverse model

cieCAM02

Determines the colour appearance model parameters of the CIECAM02 forward model

cieXYZ2xyz

Calculates the normalized CIE 1931 chromaticity coordinates from standard CIE X,Y,Z tristimulus values

srgb2xyz

Transforms srgb values to CIE 1931 x,y,z, chromatic coordinates

xyz2srgb

Transforms CIE 1931 x,y,z chromaticity coordinates to srgb values

sunpos

Calculates the sun position according to DIN EN 17037 from UTC

plotaopic

Plots α-opic images from the αΩ-meter