This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
en:offlinemaps [2019/12/01 16:37] – [Configuration] lineflyer | en:offlinemaps [2022/10/20 21:19] (current) – add hillshading ztnfny | ||
---|---|---|---|
Line 7: | Line 7: | ||
Using an offline map with c:geo in combination with stored caches allows to use c:geo completely offline (e.g. when you don't want or cannot use a mobile data connection). | Using an offline map with c:geo in combination with stored caches allows to use c:geo completely offline (e.g. when you don't want or cannot use a mobile data connection). | ||
- | This tutorial describes how to download, install | + | In addition |
- | ===== Downloading | + | This tutorial describes how to download, install and configure such offline |
- | First of all you need to download | + | ===== Automatic |
- | The following tables provides an overview of some compatible map file sources, where you can download | + | c:geo supports a fully automated |
- | ^ Name ^ Coverage ^Description ^ Compatibility ^ Pricing ^ | + | ==== Download sources ==== |
- | |[[https:// | + | {{anchor:mapsources}} |
- | |[[https:// | + | |
- | |[[https:// | + | |
- | The table above does only provide some examples | + | The following tables provides an overview |
- | ===== Installation ===== | + | ^ Name ^ Coverage ^Description ^ Remarks ^ Pricing ^ |
+ | |[[https:// | ||
+ | |[[https:// | ||
+ | |[[https:// | ||
- | <WRAP center round info 100%> | + | ==== Download |
- | Users reported, that some (vendor) tools used to transfer files between PC and smartphone might corrupt or alter the files during transfer. Therefore we recommend to download all files directly onto your smartphone and use a good file explorer on the device to decompress/ | + | |
- | </WRAP> | + | |
- | ==== Map files ==== | + | The c:geo map downloader can be started in two ways: |
+ | * From the [[.: | ||
+ | {{ : | ||
- | The downloaded offline map file needs to be stored onto your device in a folder of your choice. If the downloaded file is compressed ('' | + | |
+ | {{ : | ||
- | If you want to install several map files for usage with c:geo, you should store all of them into the same folder. As c:geo is later on configured to search for maps in a specific folder, all of them will be selectable in c:geo. | ||
- | {{: | + | After opening the map downloader you can choose from what source you would like to download the map by opening the drop down menu shown on top. To learn more about the different map sources, please take a look at [[offlinemaps# |
- | For this tutorial, let us assume you stored the map file(s) to ''/ | + | {{ : |
- | ==== Themes ==== | + | For this example we use " |
- | If you (optionally) also downloaded a theme file for your offline | + | The top level list is usually sorted by coarse geographical regions |
- | Typically the downloaded theme is compressed ('' | + | {{:en: |
- | All of the resulting folders and files need to be stored below a folder of your choice on your device. | + | <WRAP center round important 100%> |
+ | Downloading | ||
+ | </ | ||
- | {{: | + | Confirm the following dialog to start the download. |
- | For this tutorial, let us assume you stored the theme(s) to ''/ | + | {{ : |
- | ===== Configuration ===== | + | The download itself is performed in the background by the download manager of your device. When the transfer is complete, the file is transfered to the c:geo map folder and set as current map automatically. |
- | Once you finished storing the map files (and optionally themes) onto your device, you need to configure | + | <WRAP center round info 100%> |
+ | Best is to keep c:geo active during | ||
+ | </ | ||
- | You will find the corresponding settings in c:geo Menu -> Settings -> Map. A detailed description of this setting menu can be found [[.mainmenu:settings# | + | {{:en:offlinemap_downloader_5a.png? |
- | At the beginning | + | If the downloaded map requires a dedicated map theme (does not apply to Mapsforge) |
- | {{ :en:offlinemap_settings_empty.png? | + | {{ :en:offlinemap_downloader_6.png? |
- | In this menu you need to select the directory, where you have stored the map files (and themes) in the previous step of this tutorial. | + | This is all you need to do. The downloaded |
- | Sticking to our example above you need to configure the following directories here: | + | |
- | ^ Menu item ^ Setting ^ | + | |
- | |Directory with offline maps|/ | + | |
- | |Map Themes Directory|/ | + | |
- | To select these folders simply click on the related menu item. c:geo will then automatically scan your folders trying to find the map files and offer the corresponding directory to be selected. If the list already contains the correct directory | + | In case you need more than one offline |
+ | ==== Check on updates for downloaded maps ==== | ||
- | {{ : | + | You can also use the map downloader to check for regular updates of your already downloaded maps and themes. Just open the map downloader as described in the chapter above. |
- | <WRAP center round tip 100%> | + | Tap on the button |
- | On some devices finding | + | |
- | Due to the many different implementations depending on vendor and device configuration, we can't give a generic information, | + | |
- | </ | + | |
- | If you select '' | + | {{ : |
+ | The downloader will either show you, that no map update is available or list the files, which can be updated. To update the maps/themes just click the disc icon next to the file name. | ||
- | The following pictures show two different typical file explorers and visualize the steps needed to browse and select your map folder according to our example. For setting up the theme folder the steps are identical, but you need to select the themes folder instead. | + | {{ : |
- | {{:en:offlinemap_chooser_cgeo_map.jpg? | + | {{ :en:offlinemap_downloader_update_2.png? |
- | {{ : | + | |
- | Staying in our example the directory configuration should be shown look like this in the menu at the end: | ||
- | {{ : | ||
- | Now you are ready to use your map files (and themes) with c:geo. | + | Once the update has been downloaded |
+ | {{ : | ||
- | ===== Usage ===== | + | You need to repeat |
- | <WRAP center round important 100%> | + | |
- | After adding new maps/ | + | |
- | </ | + | |
- | ==== Using the map file ==== | + | ===== Usage of offline maps ===== |
- | If you correctly configured the directories, | ||
- | {{: | + | ==== Selecting map files ==== |
- | {{ : | + | |
+ | c:geo will show all downloaded offline map files in the map selection menu on your (live) map and you can use it to change between your installed offline maps. | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | You can also use c:geo Menu -> Settings -> Map and tap on '' | ||
+ | |||
+ | {{ : | ||
Once selected c:geo will continuously use this map file to render your map instead of using the online maps. | Once selected c:geo will continuously use this map file to render your map instead of using the online maps. | ||
- | ==== Using the theme ==== | + | ==== Selecting a theme ==== |
After selecting the offline map file to be used, you can assign the theme, which shall be used to render the map. | After selecting the offline map file to be used, you can assign the theme, which shall be used to render the map. | ||
Line 111: | Line 112: | ||
This can be done in the menu of the (live) map using the menu option '' | This can be done in the menu of the (live) map using the menu option '' | ||
- | {{: | + | {{ : |
- | {{ : | + | |
Line 118: | Line 118: | ||
- | ===== Advanced theme options | + | ==== Advanced theme options ==== |
If you installed a theme, you can adjust and configure the visibility of certain map elements according to your need. You can find the related option in the (live) map menu under '' | If you installed a theme, you can adjust and configure the visibility of certain map elements according to your need. You can find the related option in the (live) map menu under '' | ||
Line 127: | Line 127: | ||
{{ : | {{ : | ||
+ | |||
+ | ==== Hillshading ==== | ||
+ | |||
+ | Hillshading is a technique for creating topographic relief maps by adding a lighting effect to the map to indicate changes in elevation. Sloped will be darkened/ | ||
+ | |||
+ | === How to use hillshading in c:geo? === | ||
+ | |||
+ | Hillshading is available only with offline maps. To use it configure a folder containing the hilldshading definition files in " | ||
+ | |||
+ | === Where to get hillshading files? === | ||
+ | |||
+ | Multiple sources exist for hillshading files with different coverage and resolution. The files are required in " | ||
+ | |||
+ | Most sources offer them by degree-coverage with popular sizes being 1" (1x1°, resolution of 30m) and 3" (3x3°, resolution 90m). | ||
+ | |||
+ | Sources: | ||
+ | |||
+ | ^ URL ^ Coverage | ||
+ | | https:// | ||
+ | | http:// | ||
+ | | http:// | ||
+ | |||
+ | === Hillshading and custom themes === | ||
+ | Hillshading requires support by the map theme. If you placed the files correctly but are not seeing any hillshading it might be due to your map theme. Switch to c:geos " | ||
+ | |||
+ | If that's the case please use another map theme or contact your map themes author to support hillshading. | ||
===== Further reading on offline maps ===== | ===== Further reading on offline maps ===== |