Opens a form in order to initiate visual horizon drawing.
Unit to observe from
Groundheight in meters at the unit of observation location
Local height above ground of the 'antenna' of the unit.
Elevation angle scale
If checked the minimum and maximum values at the Y-axis are based on the local situation.
If un-checked the minimum and maximum values at the Y-axis are set by the user.
Target hight above ground level in meters
Draws the Visual horizon graph
Copy's the Visual horizon to the clipboard
The Graph displays the maximum angle under which the observer unit can see the observed.
Exports the Visual horizon to a text file 'horizon.txt'
The following image shows the situation of the unit under observation in the visual horizon above. the image can be used for verification of the result. As a aid radial lines have been drawn using 'Draw rings'
Click on the image for a large view