# Spatial Index as a Tag

> Tagging a spatial hash or a quadtree as a domain concern, where a lookup structure over known members takes the registry tag.

Record: `lexicon:spatial-index-as-a-tag`
Kind: anti-pattern
Layer: [Structural Core](https://banes-lab.com/records/layer/structural-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-spatial-index-as-a-tag

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Batcher as a Tag](https://banes-lab.com/records/lexicon/batcher-as-a-tag.md) and before [Keybinding as a Tag](https://banes-lab.com/records/lexicon/keybinding-as-a-tag.md).

## Category

- [Refused Tags](https://banes-lab.com/records/lexicon-category/refused-tags.md)