Vectorial Map is a map browser for Mapsforge vector maps which are directly rendered on the device and do not require an internet connection. Mapsforge maps are ideal for outdoor activities or traveling where online access is not available or expensive. Because maps are rendered on the fly it is possible to style the maps with simple XML style sheets without having to download a complete map set each time. Vectorial Map also supports track and route loading from GPX and KML/KMZ files and waypoints. The current position is represented by a symbol and a circle which indicates the accuracy in meters: Depending on the current location (e.g. in house, under trees, etc.) it might take a while until a GPS signal is received. The trip computer shows the current speed, altitude, distance, and recording time. Distance and recording time are only shown during track recording. The trip computer is updated when a new GPS location update has been received. The scalebar shows the current map scale in meters/kilometers or foot/miles. The scalebar’s units can be changed in the Settings. Vectorial Map can display online tile maps and offline Mapsforge vector maps. The online maps (e.g. OpenStreetMap and OpenCycleMap) have less display quality and should only be used for overview purpose. Maps can be imported to Vectorial Map using iTunes file sharing and from other apps, such as the Safari Browser, DropBox, etc. or by using the ‘Open in’ feature. The fastest way to import data into Vectorial Maps from your Mac is by using the iTunes file sharing feature: The Mapsforge format stores maps as vector data and maps are rendered on the fly on the device. The map render style can be fully controlled using Mapsforge XML based style sheets. Some sample styles from the OpenAndroMaps project can be downloaded here. Mapsforge styles consist of a zip file containing one or multiple XML files and directories with patterns and symbols. The following screenshot shows an example of the zip-file structure: A track can be either loaded as a route or track. A route is path which cannot be edited and serves as a navigation help. To load a track as a route go to the ‘Track manager’, select a track and choose ‘Open as route’. Tracks and routes can be removed from the current map view using the ‘Remove track’ and ‘Remove route’ menu entries (this will only remove the track/route from the map view but it will not delete the track from the database!). Track files can be imported and exported from other apps (such as Safari, DropBox, etc.) using the ‘Open in’ feature or iTunes File Sharing. Tracks can be manually drawn using the menu entry ‘Draw track’. This is for instance useful for route planing. When the track drawing mode is started then a new menu bar will show up with three buttons: A track can be drawn by touching the map at the position where a new track point should be added. During drawing the trip computer shows the total track distance. Waypoints represent points of interest at a certain location. If a track is loaded or being recorded then a new waypoint can be added using the menu entry ‘Add waypoint’. Green waypoints represent track waypoints and red waypoints are route waypoints. Route waypoints cannot be added. Bookmarks are track independent waypoints which always show up in the map even if no track or route is loaded. They are represented by a blue symbol: Bookmarks can be edited either by pressing on a bookmark symbol or selecting the ‘Bookmark manager’ menu entry. Source.