group — composite container; controls fan out to descendants.
every GeometryTypeName — leaf data layers. Deliberately the whole
geometry vocabulary: any leaf type the format can carry is a layer the panel
must be able to list.
Specialized groups (kind === 'lod' / 'partition') appear in the layers
panel as their underlying display_type — never as 'group'. That
display_type is drawn from the LOD/partition-capable subset of the
vocabulary, not from LayerType itself (see types/geometry-capabilities).
The specialized-group nature is surfaced via the kind field on
LayerInfo, which drives the per-layer badge / LOD dropdown.
Geometry type of a layer.
group— composite container; controls fan out to descendants.Specialized groups (
kind === 'lod'/'partition') appear in the layers panel as their underlyingdisplay_type— never as'group'. Thatdisplay_typeis drawn from the LOD/partition-capable subset of the vocabulary, not fromLayerTypeitself (seetypes/geometry-capabilities). The specialized-group nature is surfaced via thekindfield onLayerInfo, which drives the per-layer badge / LOD dropdown.