mapcomplete

History

pietervdvn 9cfb7fbe68 Update of latlon2country and use its async interface; small refactoring of simplemetagging, improvements to cacheBuilder which respects isShown and calculated tags now		2021-12-07 02:22:56 +01:00
..
DynamicGeoJsonTileSource.ts	Add possibility to load external data as mercator tiles, add bbox tile possibilities, add CRAB and GRB as datasources in the GRB theme	2021-10-27 03:52:19 +02:00
DynamicTileSource.ts	Full code cleanup	2021-11-07 16:34:51 +01:00
FullNodeDatabaseSource.ts	Full code cleanup	2021-11-07 16:34:51 +01:00
OsmFeatureSource.ts	Full code cleanup	2021-11-07 16:34:51 +01:00
README.md	Full code cleanup	2021-11-07 16:34:51 +01:00
TiledFeatureSource.ts	Update of latlon2country and use its async interface; small refactoring of simplemetagging, improvements to cacheBuilder which respects isShown and calculated tags now	2021-12-07 02:22:56 +01:00
TileHierarchy.ts	More refactoring of the featurepipeline, introduction of fetching data from the OSM-API directly per tile, personal theme refactoring	2021-09-28 17:30:48 +02:00
TileHierarchyMerger.ts	Full code cleanup	2021-11-07 16:34:51 +01:00

Data in MapComplete can come from multiple sources.

Currently, they are:

The Overpass-API
The OSM-API
One or more GeoJSON files. This can be a single file or a set of tiled geojson files
LocalStorage, containing features from a previous visit
Changes made by the user introducing new features

When the data enters from Overpass or from the OSM-API, they are first distributed per layer:

OVERPASS | ---PerLayerFeatureSource---> FeatureSourceForLayer[] OSM |

The GeoJSon files (not tiled) are then added to this list

A single FeatureSourcePerLayer is then further handled by splitting it into a tile hierarchy.

In order to keep thins snappy, they are distributed over a tiled database per layer.

Notes

cached-featuresbookcases is the old key used cahced-features{themeid} and should be cleaned up