> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/dragonfly-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/dragonfly-primer/components/0_create/gridded_skylight_parameters.md).

# Gridded Skylight Parameters

![](/files/aIbF25US7fO0xa4kxASK)

![](/files/jBQNsvgs9IAI6iHzHFKJ) - [\[source code\]](https://github.com/ladybug-tools/dragonfly-grasshopper/blob/master/dragonfly_grasshopper/src//DF%20Gridded%20Skylight%20Parameters.py)

Create Dragonfly skylight parameters with instructions for generating skylights according to a ratio with the base Roof surface.

### Inputs

* **ratio \[Required]**

A number between 0 and 0.75 for the ratio between the skylight area and the total Roof face area.

* **spacing**

A number for the spacing between the centers of each grid cell. This should be less than half of the dimension of the Roof geometry if multiple, evenly-spaced skylights are desired. If None, a spacing of one half the smaller dimension of the parent Roof will be automatically assumed. (Default: None).

### Outputs

* **skylight**

Skylight Parameters that can be applied to a Dragonfly object using the "DF Apply Facade Parameters" component.


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