Tutorial 02 - Map & GPS (v2.5)

At the first time, the zMap will request the authority for GPS access.  Click “OK” to allow or click “Don’t allow” to denied. (You can allow it  later at iOS system setting page.)

For version 2.4 or later, the “World (Sample) map will not be bundled with zMap and you can download the sample maps at then import it via iTunes File sharing or other App, please read Tutorial 6 for details.

For version 2.0, the Online Google Map with cache is available which will store the map tiles when internet connection is available and store it in the cache.

For verion 2.3 or before, the World (Sample) map is bundled with zMap, which source from OpenStreetMap (“© OpenStreetMap contributors, CC-BY-SA).


2  To view the map, just select it and the map screen will be shown. It may take several minutes for analysis the new map. (For large map tiles map in Galileo, RMaps, Big Planet & Osmand format, it will spend long time to analysis, you can pre-process the file at the computer first, please read the “tutorial 7 – Read large Map Tiles File” for further information.)

After version 2.4, the map will be shown at your last visited location and zoom level. If your last visited location is out of the range of the map, the system will ask you to choose go back last visited location or the default location of the map.


To delete the map by swipe from left to right then press the “Delete” button.


The zMap setting button is located at the right bottom of the screen for detail settings.

 At “Map” page, you can zoom in/out by pinch-in/out gesture or double tap. Rotate the map by rotation gesture and top-left compass will indicate the map orientation.

For version 2.4 or later, you can resume the map orientation to north by press the compass icon


Press “GPS&Compass” button to activate the GPS function.
Press “GPS&Compass” again will activate compass function and one more press will stop these functions.


You can choose different Compass Heading options in the “Settings>Compass Heading” page.

For version 2.5 or later, the GPS will keep on even you move the map or search bookmark and the red "center" button will be shown. Press it then the GPS point will resumes to center of the screen again.

7   If “Location Service Disabled” warning pop up, it means the GPS access is disabled, please go to iOS system “Settings>Location Services” to enable it.

For iOS6, the system setting of GPS is changed to General>Privacy>Location

If the “GPS or Compass Interference” screen shows up, it means GPS or compass signal of your devices is under bad condition.

Online Map will have the same operation but there are more options in “Settings>Google Online Map”. The “System” language option means the system language of your iOS device.

The online map cache will store the map tiles and available at offline situation. You can check the cache size by press “Check Size” and “Reset Cache” to clear the cache.


For version 2.2 or later, the “Google Online Map” rename to “Online Map” and two map sources are added, OpenStreetMap and MapQuest, By change the map source at “Setting>Online Map>Map Source”.

For verion 2.6 and later, the "Nokia" is added in Map source


The Cache Data Mode is new feature for version 2.2, the user can choose two modes for Data Download.
·      Latest Data (Internet >Cache) – If the internet data is available, download internet data first, else use the Cache Data
·      Data saving (Cache) > Internet) – Use Cache Data first, else check and download map tile from internet.

The Auto Screen Lock feature, allow user to disable the iOS system Auto-Lock when selected “Enable”, the zMap will just follow the system Auto-Lock option of your iOS device.


In version 2.6, the map rotation can be enabled/disabled in setting page by change "Rotation Gesture" and the compass will indicate the status.                                        


In version  2.6, you can exclude iTunes backup your "iTunes share folder" by "iTunes/iCloud Backup" in setting page

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