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The Usefull Daylight Illuminance is a parameter that describes the percentage of time a point has been between a determined range of illumination. The UDI has three variantes, the percentage of time a point has been below a minimum illuminance level (UDI_under), the percentage of time a point has been between a desired level (UDI_useful) and the percentage of time a point has been above a maximum level (UDI_over).

I wrote a class in python (ready to use in Jupyter notebook) to calculate and plot the UDI from a ILL file from Radiance and OpenStudio . This class also visualize an illuminance map at specific day and time and also plot the illuminance profile at specific values of x or y.

The class reads the ILL file from Radiance and does everything described above.

Feel free to try it and suggestions are welcomed, it is on github https://github.com/AltamarMx/Daylight

C:\fakepath\Selection_352.png

C:\fakepath\Selection_353.png

C:\fakepath\Selection_355.png

I have been a reader since 5 o 6 years, and i feel very excited and glad to contribute to this community.

The Usefull Daylight Illuminance is a parameter that describes the percentage of time a point has been between a determined range of illumination. The UDI has three variantes, the percentage of time a point has been below a minimum illuminance level (UDI_under), the percentage of time a point has been between a desired level (UDI_useful) and the percentage of time a point has been above a maximum level (UDI_over).

I wrote a class in python (ready to use in Jupyter notebook) to calculate and plot the UDI from a ILL file from Radiance and OpenStudio . This class also visualize an illuminance map at specific day and time and also plot the illuminance profile at specific values of along x or y.

The class reads the ILL file from Radiance and does everything described above.

Feel free to try it and suggestions are welcomed, it is on github https://github.com/AltamarMx/Daylight

C:\fakepath\Selection_352.png

C:\fakepath\Selection_353.png

C:\fakepath\Selection_355.png

I have been a reader since 5 o 6 years, and i feel very excited and glad to contribute to this community.

The Usefull Daylight Illuminance is a parameter that describes the percentage of time a point has been between a determined range of illumination. The UDI has three variantes, the percentage of time a point has been below a minimum illuminance level (UDI_under), the percentage of time a point has been between a desired level (UDI_useful) and the percentage of time a point has been above a maximum level (UDI_over).

I wrote a class in python (ready to use in Jupyter notebook) to calculate and plot the UDI from a ILL file from Radiance and OpenStudio . This class also visualize an illuminance map at specific day and time and also plot the illuminance profile along x or y.

The class reads the ILL file from Radiance and does everything described above.

Feel free to try it and suggestions are welcomed, it is on github https://github.com/AltamarMx/Daylight

C:\fakepath\Selection_352.pngUDI

C:\fakepath\Selection_353.pngIlluminance map

C:\fakepath\Selection_355.pngIlluminance along x/y

I have been a reader since 5 o 6 years, and i feel very excited and glad to contribute to this community.

The Usefull Daylight Illuminance is a parameter that describes the percentage of time a point has been between a determined range of illumination. The UDI has three variantes, the percentage of time a point has been below a minimum illuminance level (UDI_under), the percentage of time a point has been between a desired level (UDI_useful) and the percentage of time a point has been above a maximum level (UDI_over).

I wrote a class in python (ready to use in Jupyter notebook) to calculate and plot the UDI from a ILL file from Radiance and OpenStudio . This class also visualize an illuminance map at specific day and time and also plot the illuminance profile along x or y.

The class reads the ILL file from Radiance and does everything described above.

Feel free to try it and suggestions are welcomed, it is on github https://github.com/AltamarMx/Daylight

UDI

Illuminance map

Illuminance along x/y

I have been a reader since 5 o 6 years, and i feel very excited and glad to contribute to this community.

The Usefull Daylight Illuminance is a parameter that describes the percentage of time a point has been between a determined range of illumination. The UDI has three variantes, the percentage of time a point has been below a minimum illuminance level (UDI_under), the percentage of time a point has been between a desired level (UDI_useful) and the percentage of time a point has been above a maximum level (UDI_over).

The Usefull Daylight Illuminance is a parameter that describes the percentage of time a point has been between a determined range of illumination. The UDI has three variantes, the percentage of time a point has been below a minimum illuminance level (UDI_under), the percentage of time a point has been between a desired level (UDI_useful) and the percentage of time a point has been above a maximum level (UDI_over).

The Usefull Daylight Illuminance is a parameter that describes the percentage of time a point has been between a determined range of illumination. The UDI has three variantes, the percentage of time a point has been below a minimum illuminance level (UDI_under), the percentage of time a point has been between a desired level (UDI_useful) and the percentage of time a point has been above a maximum level (UDI_over).