Visibility Light Source

The light source visibility indicator allows to evaluate at each grid, the number of light sources visible by an observatur at a given height.
It requires several data calculated in tab 1 and 2, to then calculate the results in tab 3.

Number of visible lights

The indicator represent the number of light sources by grid (imported or created) observed according to the relief, the height of the observer and the light sources. A mask is also applied to remove the illumination on the walls of the upper frame at a certain height as a parameter.

Input parameters

Output data