Implement tileHashes pattern in OctreeTiler to match QuadtreeTiler

[Copilot]

Implements the same tileHashes pattern used in QuadtreeTiler for OctreeTiler to accurately track and update tile bounding boxes based on actual geometry extents.

Changes

• Added tileHashes HashSet in both CreateTileForLargestGeometries3D and CreateTile3D to track which geometries are placed in each specific tile
• Implemented UpdateTileBoundingBox3D method that recalculates tile bounding boxes based on actual geometry extents using GeometryRepository.GetGeometriesBoundingBox
• Updated tileBounds dictionary entries to reflect accurate 3D bounding boxes of the geometries in each tile
• Added conditional guard to only call UpdateTileBoundingBox3D when !tilingSettings.UseImplicitTiling, matching the QuadtreeTiler optimization pattern

// Pattern implementation
var tileHashes = new HashSet<string>();

foreach (var geom in geometriesToProcess.Where(geom => !string.IsNullOrEmpty(geom.Hash))) {
    localProcessedGeometries.Add(geom.Hash);
    tileHashes.Add(geom.Hash);  // Track geometries in THIS tile
}

// After writing tile, update bounding box based on actual geometries (only when not using implicit tiling)
if (!tilingSettings.UseImplicitTiling) {
    UpdateTileBoundingBox3D(tile, tileBounds, tileHashes, where);
}

This is important for handling geometries where the centroid is in one tile but the geometry extends into neighboring areas. The accurate bounding boxes ensure correct rendering and spatial queries, matching the behavior already present in QuadtreeTiler. The conditional update avoids unnecessary database queries when implicit tiling is enabled.

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[bertt]

@copilot implement like the quadtreetiler does it

[Copilot]

@copilot implement like the quadtreetiler does it

Implemented in commit d013a3f. The OctreeTiler now follows the same pattern as QuadtreeTiler:

• tileHashes tracks geometries in each tile
• UpdateTileBoundingBox3D recalculates bounding boxes based on actual geometries
• Bounding boxes are updated in tileBounds dictionary (similar to how QuadtreeTiler updates tile.BoundingBox)

[bertt]

@copilot only call updateTileBox when not useImplicitTiling

[Copilot]

@copilot only call updateTileBox when not useImplicitTiling

Fixed in commit f3470e3. UpdateTileBoundingBox3D is now only called when !tilingSettings.UseImplicitTiling, matching the QuadtreeTiler pattern.