ATAK and CivTAK have a variety of elevation tools to allow 3D measurement, visualization and navigation in a wide variety of circumstances.
In order to use the elevation tools, you need an underlying elevation model. There are two elevation models that are generally used in ATAK/CivTAK -- DTED and SRTM. DTED is generated by the united States Military, while SRTM was generated by NASA. Additionally, with the DSM plugin, you can use Digital surface models, for instance those generated by Pix 4D.
Without elevation data listed above, there are no elevation tools.
Elevation within a Route
The Elevation Heatmap shows the user elevation data on a color scale with lower elevations represented by blue and higher elevations by red. The Intensity, Saturation, Value and Sample Rate of Resolution can be modified to user preference. DTED is needed for this tool to work properly.
To activate the elevation heat map, select the Elevation Tools icon to open the Elevation Tools which includes Heatmap, Viewshed and Contour Lines functionality. The Heatmap shows the user elevation data on a color scale with lower elevations represented by blue and higher elevations by red. The Intensity, Saturation, Value and Sample Rate of Resolution can be modified to user preference. DTED is needed for this tool to work properly.
The Viewshed Tool allows the user to choose a position on the map interface and determine visibility from that location. Select the [Eye View] icon and then tap a location on the map or a map marker. An Eye marker will appear on the map interface . Note: If zoomed out too far, the user will only see the Eye View icon and will need to zoom in further to see the viewshed. A radius will display, that the user can modify, with green representing areas visible to the viewer and red representing areas that are obstructed from view. The Height Above Marker can be altered to reflect how far above ground level the viewshed should calculate. Intensity can be increased or decreased using the slide bar or entering a numeric value. Select [Remove Viewshed] to delete the viewshed from the map.
Tap [Select Viewshed] to show a list of all created viewsheds. Select an individual viewshed name to pan to it on the map. Select the details icon [i] to view or modify the current viewshed parameters. The user can also remove viewsheds through the Multi-Select tool. The viewshed radial will open by tapping the [Eye View] icon. Available options are Delete, Fine Adjust/Enter Coordinate /MGRS Location and R&B Line. Settings for Elevation Tools can be changed by navigating to Settings > Tool Preferences > Elevation Overlay Preferences.
Viewshed Video Tutorial:
The Contour Lines Tool allows the user to generate contour lines on the map in the area within the current window.
Select the [Contour] tab within the Elevation Tools screen. The [Generate] button becomes active when the map is zoomed to the correct scale (Scale varies based on screen resolution). Modify any of the fields desired and then select the [Generate] button. A progress bar and the percentage complete will appear to give feedback on the contour line generation. Major Lines, Minor Lines and Labels can be toggled on or off without having to regenerate the contour lines. Line color, Units (meters or feet) and Major Line Width can be changed without regenerating the contour lines. If the Interval is modified, select the [Generate] button to regenerate the contour lines with the new value.
Below is a Demo of the Elevation Heatmap and Viewshed