> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dalyenergy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get GCR Properties

> Get computed Ground Coverage Ratio properties for a shading scene

# GET /shadingscenes/{scene_id}/gcr

Retrieve the computed Ground Coverage Ratio (GCR) properties for a shading scene. GCR describes the ratio of module area to total ground area and is a key input for tracker backtracking and inter-row shading calculations.

## Notes

* GCR properties are derived from the scene geometry and stored within the scene JSON as `gcrProperties`.
* Returns `404` if the scene does not exist or if no GCR properties have been computed for the scene.
* GCR data is typically available after scene creation or import once the geometry has been processed.
* This endpoint is useful for validating tracker configuration inputs and understanding the physical layout density of a scene.
* Related: [POST /shadingscenes/{scene_id}/trackinginputs](/api-reference/endpoints/shading-scenes-tracking-inputs) uses GCR as a required parameter for tracker angle configuration.