I assume, some of you may as well have stumbled over Garmins “special” treatment of several types ignoring the style, probably individual by different Garmin hardware units. Dealing with sports and outdoor devices, I’ve come across phenomenons like
Rails (0x14)being rendered at high(est) zoom resolution(s) only.
Plenty of points/POIs being ignored (e.g. on an Edge 1030: 0x2B01, 0x2B03, 0x2E01, 0x2E03, 0x3001, 0x3002, 0x4300, 0x4A00, 0x5000, 0x660B, 0x6116, 0x6404, 0x6411, …) Maybe Garmin intends to declutter some units more than others this way, but it results in e.g. neither police stations nor hospitals beeing rendered on a cycling device, not even from Garmins own maps. Unless other types are used intentionally in own styles…
While level L0/resolution 24 may correspond to a zoom level of 200 m (detail: normal) on a device for lines and most of points/POIs (respecting all other levels as declared in the respective style), some point types (e.g. 0x2E05, all of 0x4E…) are rendered only at zoom levels of 80 m and below (would be something like level -1! 0x4E is dec 78 hahaha) and do not respect the style. But those types are quite helpfull to e.g. declutter downtown areas and the like for navigation focussed maps.
Since I’ve found the rail thingie in the web (unfortunately being aware already only), but not the other ones, I wonder, if there isn’t already a collection of knowledge about such special treatments existant somewhere anyhow and somebody could just give me a pointer.
Alternatively, any additions to my trial and error generated list would be highly appreciated.