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Pedro Lobato
fa9af39e7b
The in-memory cache in the terrain-height resolver had no eviction, so a session retained every coordinate it ever resolved for the lifetime of the page. The 5-decimal rounding documented in the file header makes repeated visits to one place share a key, but it does not bound how many distinct places a session visits. Cap it at 20 000 entries, overridable per instance so the bound is testable without minting twenty thousand coordinates. Eviction is least-recently-used rather than insertion-ordered because revisits here are spatial: the cell the camera is parked on must not be dropped for having been resolved early. The bound sits far above a city-scale session at the ~111 m floor grid, so normal use never evicts and issues no additional proxy requests. Batch results are assembled from what the call resolved, so eviction during a large batch cannot report a just-resolved point as unresolved.