button will query
your current location and, once known, your maps will be sorted by
their distance from your location. This makes it easy to find the
maps closest to you.
If your map library is empty, you will be taken directly to this Info page upon starting the app. See the Getting Maps section below for instructions on how to add maps to your library.
If your current location is not known, the maps are sorted
alphabetically. Tapping the
button will query
your current location and, once known, your maps will be sorted by
their distance from your location. This makes it easy to find the
maps closest to you.
Tap the
button to find your
current location. The view will be centered on your current location.
Your current location will be identified with a blue sphere and a
circle. The size of the circle indicates the localization error
reported by the device. In the topographic map view, Topos2Go will
continue to localize until you tap the localize button again to turn
it off. The view will be automatically centered on your current
location until you stop locating or until you pan the map. To resume
centering on your location, stop and restart localization.
Tap the title to toggle between displaying the map title or the coordinates of the view center.
Single-tap the map to hide/unhide the toolbars.
Double-tap within a map to create a new waypoint. You can also tap
the
button to add
a waypoint at the center of the view, a touch-and-drag location or
your current location, if known. When using touch-and-drag, your
finger moves the top of the flag so that you can precisely place the
waypoint without your finger in the way. See
the Waypoints section for more information on
waypoints.
Press the info button to bring up information about the map.
Note: The first time you view a new region of a map it can be a bit slow to display. This is because topographic maps tend to be large and highly detailed. To address this, Topos2Go optimizes the map for the your device as it is being viewed. This is done by breaking up the map into tiles at different resolutions. The next time you view that region of the map it will display much more quickly. If you need to use a map right away, stay zoomed in. If you have more time, zoom all the way out, sit back, and let the app do its work on the map.
If you ever encounter a problem with tile generation (e.g. if the
tiles do not look correct at a certain zoom level), you can easily
regenerate the problematic tiles.
While viewing a
map, press the info button to bring up the map information page. Turn
on the Enable Tile Repair switch. Then, back in the map view,
zoom/pan the view to contain the black blocks and press the
button. This will cause the tiles that are contained in the current
view to be regenerated. Be sure to zoom into the first level that the
problem tiles appear, regenerate those tiles, then zoom out and
regenerate tiles as needed. Regeneration is much faster than building
the tiles from scratch. This tool was added early in the development
of the tile generation capability to correct a problem. That problem
has since been fixed, but we left the tool in just in case it becomes
useful.
button from the Map Library takes you to a site with a list of places
to get topographic maps. Navigate to one of these sites and select
any file with a .tif or .tiff extension to begin downloading a map.
Currently, TopoQuest is the primary source of map data. TopoQuest
provides extensive coverage of North America.
button from the Map Library takes you to the TopoQuest page for your
current location (if your current location is covered by the TopoQuest
maps). Note: your current location must be known for this button to
work. If the
button is dimmed-out,
please press the
button. Once your location is known this button will be enabled.
From here you can download a map for your current location or navigate to maps near your location. Tip: from the TopoQuest map page, tap the USGS Map Name link:
From here, tap the .tif file to begin downloading the map or select an adjacent map name to navigate to nearby maps.
button
from the Map Edit page takes you to the
TopoQuest page for the selected map. From here you can navigate to
and download maps near the selected map.
button to add
a waypoint at the center of the view, a touch-and-drag location or
your current location, if known. When using touch-and-drag, your
finger moves the top of the flag so that you can precisely place the
waypoint without your finger in the way.
Single-tapping a waypoint toggles showing and hiding the waypoint name.
Double-tapping a waypoint brings up a menu letting you rename, move or delete a waypoint. You move the top of the flag so that you can precisely place the waypoint without your finger in the way.
Tap the
button to
bring up a list of waypoints with locations within the currently
viewed map. Selecting a waypoint here will scroll the map to that
location.
Note that a given waypoint will appear in every map that contains its location. Similarly, if you delete a waypoint, it will cease to appear in every view.
button
takes you to the TopoQuest page for the selected map.
To begin, from the Map Library screen, tap the
button. This will
start a web server within the app. Open a browser on another computer
and point it to the address displayed on the device. You may also use
Bonjour to locate the service.
When your browser connects, you will be presented with a list of the maps on your device. You can save these to your computer.
You will also see links for your waypoints. Waypoints are provided in two formats: GPX (a format supported by a wide range of applications and services) and KML (for direct use with Google Earth and the My Maps section of Google Maps).
The web service also allows you to import maps and waypoints. Maps must be in GeoTIFF format (.tiff, .tif) (See Compatible Maps for other restrictions). Waypoints must be in GPX (.gpx) format.
Topos2Go uses the libgeotiff and libtiff libraries.
Cynic Software is extremely grateful for all the hard work from the developers of the above libraries!
Cynic Software