LOS Options
To set these values, LOS Right click options
or use the "Modify, LOS Parameters" menu choice.
Gallery showing effects of individual
parameters
In the process of being reorganized
The user can adjust the following parameters for the line of
sight profile:
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- Color visible/masked: the profile can show
terrain visible to the observer in different colors.
- Draw LOS: the program can connect the observer and
target, showing what blocks or nearly blocks the line of sight.
- Label multiple LOS
- Line width: in pixels for the LOS line.
- Earth curvature
algorithm: select how vertical curvature
is computed. The program will not allow
vertical curvature on very long profiles (such as
those with the ETOPO5 and GTOPO30 data sets)
where curvature dominates topographic
changes.
- Height observer: height of the observer
above the ground, in meters.
- Height target: height of the observer
above the ground, in meters.
- Fresnel zone: you can show Fresnel zones
for radio wave propagation beyond the direct line
of sight; if selected, the zones depend on the
radio frequency in Mhz.
- Closest
distance to block LOS (m)
- Missing data blocks LOS: DEM holes can either be ignored
for computations, or automatically block the LOS. Holes are
bad, and there is no single good solution.
- Show pitch: show the pitch on
the title bar, and the min/max pitch of the sensor.
- Show masked airspace:
- Show slope protractor: Puts a
legend in the upper left corner with the slope, corrected for the
vertical exaggeration.
- Show observer masking circle: this distance is
set on masked antenna height,
and if this option is selected, a circle will be drawn on the map.
- Show LOS data base: the program creates a data base with the
results of each LOS profile. You can display this for advanced
GIS operations on the database.
- Adjust sensor pitch:
- OpenGL settings. These affect the OpenGL picked on the LOS Right click options
- Show LOS line
- OpenGL LOS line parameters
- Vegetation effects
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To change vertical exaggeration, change the size of the
window using standard Windows commands (like dragging a corner of
the window). Note vertical exaggeration will be indicated on
the window title bar.
Last revision 8/3/2012