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Where are the OpenCycleMap tiles?

Steve Miller shared this question 11 years ago
Answered

I am interested in offline cycling maps. The application offered four options under "OpenCycleMap": 3000,10000,20000, and 40000 tiles, but it did not explain where or what these tiles are. I purchased the 3000, just to find out what would happen. What happened was that the application took my money and then nothing happened. No maps turned up on my SDcard and there were no further explanations. What gives?

Replies (4)

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I finally found a function for defining the map area and level of detail to be downloaded. It is not quite where the instructions say it is.


I defined an area in southern France, that would cover the Toulouse-Bordeaux area at the street level, needed for cycling. Just this, the app reported, would require over 300,000 tiles. At the prices quoted, this would cost about 75 British pounds At this point, the app did admit I have a credit of 3000 tiles (one pound)!.


For reference, to have the OpenCycleMap offline for general cycling anywhere in France would cost 1300 pounds! What more, that would require over 50 GB of storage!


I`m sorry, but both the price and efficiency of this is ridiculous, and therefore the whole system is useless.


Is there something I am missing??

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Hi Steve, choose rather vector maps for download. The whole France is 1.7 gig and has also the cycle.map layer. The difference between online (bit.map) files is negligible

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Hello Steve,


I’ll try to explain how maps work. Basically there are two types of maps: raster and vector. Opencyclemaps are provided in form of raster data – it means that server provides small images (tiles) and they have relatively bigger size than vector maps.


Some more information about number and disk usage:


http://wiki.openstreetmap.org/wiki/Ti...


http://msdn.microsoft.com/en-us/libra...


You can see that map data are really huge and even map server does not store all map data – detailed zoom levels are created on the fly.


So how use this data on mobile device?


If you decide for opencyclemaps (Locus vector maps is another solution – see below) you have to consider the area you want to download and also the zoom level (level of detail). From my point of view zoom-level = 17 is the limit for downloading. In many cases you don’t need all rectangle area for your trip. For this reason you can define area for downloading based on track – see http://docs.locusmap.eu/doku.php/manu...


Vector maps


As I wrote the second solution are vector maps. They work in different way – map images (tiles) are created directly on your device and you can simple change the appearance these maps. They have much smaller size – for example whole France has about 1.3GB. So if want to have offline map for whole country which are used for cycling, I suggest to download Locus vector maps. The coverage with cycle path should be similar as opencyclemaps.


See http://www.locusmap.eu/news-in-locus-...


Cheers Petr

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I am very grateful to you, Patrik and Petr, for these explanations. You are right, the vector maps are economical of space and do show the cycle routes.


Since the routes only show up clearly when the map is zoomed a lot, it will be difficult to use it for long distance planning. However that is a general difficulty with maps on small screens.

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