http://osimdev.org/wiki/index.php?action=history&feed=atom&title=OpenSimulator_Internals%2FMapImageService 2026-08-04T14:40:29Z Revision history for this page on the wiki MediaWiki 1.45.3 http://osimdev.org/wiki/index.php?title=OpenSimulator_Internals/MapImageService&diff=18&oldid=prev 2026-06-21T07:03:39Z

<p>first</p> <p><b>New page</b></p><div>= OpenSimulator Internals/MapImageService =<br /> <br /> == Overview ==<br /> <br /> MapImageService stores and serves map tile images. Stored on the filesystem, not in the database.<br /> <br /> ----<br /> <br /> == Storage ==<br /> <br /> Config key: TilesStoragePath in [MapImageService] section. Defaults to maptiles/<br /> <br /> Directory structure: maptiles/{scopeID}/<br /> <br /> File naming: map-{zoomLevel}-{x}-{y}-objects.jpg<br /> <br /> === Zoom Levels ===<br /> <br /> 8 levels. Level 1 is full resolution (256x256 pixels). Levels 2-8 are generated automatically by downsampling 4 adjacent tiles into 1.<br /> <br /> === Behaviour ===<br /> <br /> * Multi-resolution tile generation is queued and asynchronous. Waits 60 seconds after a tile arrives before building zoom levels -- avoids thrashing when large varregions upload many tiles at once.<br /> * Missing tile returns a pre-cached water-coloured JPEG (RGB 29, 72, 96) rather than an error.<br /> * All file I/O uses a single mutex. Thread safe but potentially a bottleneck on busy grids.<br /> <br /> ----<br /> <br /> == Database ==<br /> <br /> No database tables. All storage is on the filesystem.<br /> <br /> ----<br /> <br /> == See Also ==<br /> <br /> * [[OpenSimulator Internals/ROBUST Services]]<br /> * [[OpenSimulator Internals/Data Dictionaries]]</div>

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