Mapsforge might be a bit more popular than Mapline. We know about 1 link to it since March 2021 and only 1 link to Mapline. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I dunno. This is not my area of expertise. But if you need something dynamic and quick, you might need a database. Maybe some sort of fleet management. Mapline claims to be the most powerful.... https://mapline.com/ I still think that excel could be your friend https://www.mapbusinessonline.com/Solution.aspx/Excel-Maps. Source: almost 3 years ago
You are correct, Valhalla is used for routing. Maps are rendered on the ELEMNT, BOLT and ROAM with mapsforge, BOLT2 with vtm. To look at map files there is cruiser cruiser (mapsforge) and cruiser-gl (vtm). Create updated maps with wahooMapsCreator. There is also some documentation how to add POI's or make a custom theme. Source: almost 2 years ago
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