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--- en:offlinemaps [2021/04/05 22:35] – [Selecting a theme] lineflyer
+++ en:offlinemaps [2022/10/20 21:19] (current) – add hillshading ztnfny
@@ Line 41: / Line 41: @@
 For this example we use "Mapsforge" as map source and want to download the offline map for Mexico.
-The top level list is usually sorted by coarse geographical regions (typically: continents) and get more specific on each lower level. Click on the magnifier icon to open the desired list/region and see its contents. If you finally found the map file you want to install, simply click on the disc icon next to it to start the download process.
+The top level list is usually sorted by coarse geographical regions (typically: continents) and get more specific on each lower level. Tap on the magnifier icon to open the desired list/region and see its contents. If you finally found the map file you want to install, simply tap on the disc icon next to it to start the download process.
 {{:en:offlinemap_downloader_1.png?direct&300 |}}{{:en:offlinemap_downloader_3.png?direct&300|}}
@@ Line 53: / Line 53: @@
 {{ :en:offlinemap_downloader_4.png?direct&400 |}}
-The download itself is performed in the background by the download manager of your device. When the transfer is complete, the file is copied to the c:geo map folder and set as current map automatically.
+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.
+<WRAP center round info 100%>
+Best is to keep c:geo active during the download, so that after the download is completed c:Geo can directly take over the downloaded map.
+</WRAP>
 {{:en:offlinemap_downloader_5a.png?direct&400|}}{{ :en:offlinemap_downloader_5b.png?direct&400|}}
@@ Line 87: / Line 91: @@
 You need to repeat the process for each map/theme you would like to update.
+===== Usage of offline maps =====
+==== 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.
+{{ :en:offlinemap_map_selector_2.png?direct&400 |}}
+You can also use c:geo Menu -> Settings -> Map and tap on ''Select map source''  to select the offline map to be used.
+{{ :en:offlinemap_map_selector.png?direct&400 |}}
+Once selected c:geo will continuously use this map file to render your map instead of using the online maps.
+==== 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.
+This can be done in the menu of the (live) map using the menu option ''Select map theme''. If you installed a theme alongside with your offline map, please make sure you select the corresponding theme here.
+{{ :en:offlinemap_theme_selector.jpg?direct&400 |}}
-===== Usage =====
-==== Selecting map files ====
-c:geo will show all downloaded offline map files in the map selection menu on your (live) map and in c:geo Menu -> Settings -> Map.
-{{:en:offlinemap_map_selector_2.png?direct&400|}}
+==== Advanced theme options ====
-{{ :en:offlinemap_map_selector.png?direct&400|}}
-Once selected c:geo will continuously use this map file to render your map instead of using the online maps.
+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 ''Theme Options''.
-==== Selecting a theme ====
+{{ :en:offlinemap_advanced_themeoptions.jpg?direct&400 |}}
-After selecting the offline map file to be used, you can assign the theme, which shall be used to render the map.
+Here you can select a basic map style (e.g. Hiking, Cycling, Car) and customize it afterwards by enabling/disabling additional elements of the map.
-This can be done in the menu of the (live) map using the menu option ''Select map theme''. If you installed a theme alongside with your offline map, please make sure you select the corresponding theme here.
+{{ :en:offlinemap_advanced_themeoptions_2.jpg?direct&400 |}}
-{{:en:offlinemap_theme_selector.jpg?direct&400|}}{{ :en:offlinemap_map_selector.png?direct&400 |}}
+==== 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/lightened to generate a 3D-effect.
+=== 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 "Settings > Map > Map Shading Files Folder".
+=== Where to get hillshading files? ===
-==== Advanced theme options ====
+Multiple sources exist for hillshading files with different coverage and resolution. The files are required in "hgt" format and must be placed in your devices "Map Shading Files Folder".
-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 ''Theme Options''.
+Most sources offer them by degree-coverage with popular sizes being 1" (1x1°, resolution of 30m) and 3" (3x3°, resolution 90m).
-{{ :en:offlinemap_advanced_themeoptions.jpg?direct&400 |}}
+Sources:
-Here you can select a basic map style (e.g. Hiking, Cycling, Car) and customize it afterwards by enabling/disabling additional elements of the map.
+^ URL                                                                          ^ Coverage                 ^ Resolution ^
+| https://sonny.4lima.de                                                       | Europe                   | 1", 3"     |
+| http://viewfinderpanoramas.org/dem3.html                                     | World                    | 3", 15"    |
+| http://viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org1.htm | USA, Europe, New Zealand | 1"         |
-{{ :en:offlinemap_advanced_themeoptions_2.jpg?direct&400 |}}
+=== 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 "default" map theme to see if it's working then.
+If that's the case please use another map theme or contact your map themes author to support hillshading.
 ===== Further reading on offline maps =====

c:geo User Guide

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