Namespace LansMap.Core.Markers
Classes
- ClusterCellGrid
Static, build-once spatial index over a cluster list's centroids: every occupied cell's members sit in one contiguous run of a shared array, found by binary search instead of a hash probe.
- ClusterCentroidGrid
Grid spatial index over densely numbered ground points, backed entirely by flat pooled arrays: an open-addressed cell table, one shared bucket arena, and per-id side arrays. Serves the cluster build's two internal grids, where ids are consecutive from zero and no point has altitude.
- ClusterHierarchy
Every integer zoom level's clusters, built once from a marker store and then queried per view, so panning or crossing a zoom level is a lookup instead of a fresh clustering pass.
- MarkerPlacement
Where a prefab-tier marker sits in view depth, and how big it is drawn there, so it stays aligned with the tilted map view.
- MarkerSpatialIndex
Quickly finds all markers in a geographic region without checking every marker. Grid spatial index over marker positions in normalized mercator space, so a viewport-sized query costs the cells the rect touches rather than a scan of every stored marker.
- MarkerStore
The bulk-tier marker collection: a flat array of MarkerInstanceData plus a free list, sized for tens of thousands of markers uploaded to the GPU as one buffer.
Structs
- ClusterSeed
One input to a cluster build pass: a position, how many markers it stands for, and the id to record as its membership entry.
- MarkerHandle
A live reference to one marker in a specific MarkerStore: the store plus the id Add(LatLon, double, float, MarkerSizeMode, uint, MarkerShape, bool, float, float, MarkerAltitudeMode) returned for it. Property-like members forward to the store's own Set*/read paths, so a caller already holding a handle can write
handle.ShowStem = trueinstead ofstore.SetShowStem(id, true).
- MarkerInstanceData
All the data needed to draw one marker on the map. One bulk-tier marker as the CPU holds it: position, size, style and flags for a single instance in a MarkerStore.
- MarkerRef
A name for one marker that works for both tiers: bulk GPU instances and prefab GameObjects. It is not a base class and not a store.
Enums
- MarkerAltitudeMode
How a marker's authored altitude is resolved against sampled ground. See ResolveAltitudeMercator(MarkerAltitudeMode, double, LatLon, IElevationSampler) for the resolution logic.
- MarkerShape
Options for what shape each marker is drawn as. The built-in procedural marker shapes, drawn as signed distance fields in the marker shader so they stay crisp at any size.
- MarkerSizeMode
Whether a marker's size stays constant on screen or on the ground as you zoom. How a marker's SizeParam is interpreted, and therefore whether the marker keeps a constant size on screen or a constant size on the ground.
- MarkerTier
Which marker store a MarkerRef names. Bulk is a GPU instance on
Map.Markers. WorldBulk is a GPU instance on a tabletopWorldMarkersstore that is not that same object. Prefab is a GameObject, whether it stands on a screen map or a table.