A feasibility study can pull in dozens of layers: zoning context, aerial imagery, survey data, and a drawing layer for every building. Every layer in the Layer Palette is something Giraffe has to load, render, or compute. Clearing out layers you no longer need keeps a project fast.
To group, reorder, or rename the layers you keep, organize your layers.
Hiding a layer doesn't speed anything up
Hiding a layer with the eye icon turns it off on the map. The layer stays in the project, and the data it already loaded stays in memory. If you're not using a layer, remove it instead of hiding it.
Remove data layers you're no longer using
Open the layer menu on a data layer in the Layer Palette and choose Remove from project. Giraffe stops fetching and rendering that layer for this project. The layer stays in your Layer Library for the next project that needs it.
Delete drawing layers you only used for testing
Quick tests and sketches often leave throwaway drawing layers behind. Delete them once you're done. A drawing layer with nothing on it shows (Empty) after its name, so leftover test layers are easy to spot.
Open the layer menu and choose Delete.
Delete every empty drawing layer at once
Use Project Cleanup to delete every empty drawing layer in one step, along with unused usages, flows, blocks, scenarios, and properties.
Every geometry counts toward your project's size
Geometries left on unused drawing layers still count against Giraffe's per-project limits and still factor into every recompute. Learn the limits and more ways to improve project performance.