GMDE Lite

v. 8.0.0 -- 6 August 2026 (Finally...) • NEW -- GMDE can now download (when you have an internet connection) and cache permanently on your device map tiles from the USGS and from the Open Topo Map project. The app will automatically store the tiles in an MBTiles database. USGS Topo and Imagery map tiles are only available in the United States but Open Topo Map tiles (with 10 m contours based on the 30 m SRTM DEM) can be downloaded for anywhere in the world. To download map tiles go to the Settings Screen and toggle on "Download Map Tiles". A message box will appear asking you the source you want to use for map tiles. When you tap the source, you will be taken to the Map or the Online Satellite screen. Adjust the view by pinching and dragging until the area for which you want to download tiles fills the screen. I suggest zooming out no more than level 12 to avoid downloading a huge number of tiles all at once (please do not abuse these free sources of map tiles!). Then, tap the name of the data source in the Map Button menu (e.g., for USGS Topo Map tiles tap "USGS Topo Cache") and your download will start automatically. All zoom levels between your starting zoom level (e.g., 12) and zoom level 16 (2 m/pixel, the highest zoom for which USGS tiles are available) will be downloaded to your device. You can pan the map once tiles have been downloaded to start new downloads of adjacent areas. When you are finished downloading, eith tap the "Stop Download" button that appears during downloading, go to the Settings Screen and toggle off "Download Map Tiles" or switch to any other map using the Map Button menu. • NEW -- GMDE Lite will not allow you to zoom in one level higher than the maximum level in your map tiles database. For example, If you have downloaded USGS Imagery Tiles to the maximum of level 16 (2 m/pixel), when viewing those times, you will be able to zoom to level 17 (1 m/pixel). This may help to separate closely spaced measurements. • NEW -- When you export your data as a KMZ file, that file will now include any photos. Thumbnails of the photos will be displayed automatically in Google earth. v. 7.3.0 -- 26 June 2026 • NEW -- All of the toolbar buttons now have popup menus rather than message boxes for making your selection. These menus are faster and more elegant than the previous way of doing things. • NEW -- Pause and resume an activity such as collecting a GPS track or sketching on a map. The functionality has been enabled by the new menu interface: e.g., tap the measure tool and choose Record GPS track from the menu. The toolbar measure button starts flashing. when you need to pause a track, tap the flashing toolbar button. The resulting menu now shows Pause and End. Tap pause. When you're ready to resume tap the toolbar button and the menu will now say Resume and End. Tap resume to continue collecting your track. To end the track, tap the button and choose End from the menu. • NEW -- From the Add Orientation menu (accessed from the Orientation button on the toolbar), you can now go directly to collecting and orientation by Device Orientation (when you want to put your phone on the plane to be measured) or directly to the sighting an orientation screen. When you go to the sighting screen, as soon as you tap the display when there is a valid measurement the screen will close and you will see the orientation in the Orientation Details screen. Both device orientation and sighting were, and still are, available from buttons in the toolbar for the Orientation Details screen. The just gives you a little fast way of collecting those measurements. • NEW -- You can now enter an orientation in the orientation details screen by tapping and dragging in the stereonet at the bottom of the screen. • NEW -- The Rangefinder can now be used to measure the azimuth and inclination by sighting through your device camera.