User manual

U-See User Manual - Pre-Flight Menu
2.9.6.2 Use of pattern generator
To access pattern generator, select Pre-Flight → Pattern Generator. The pattern geneerator
window will open and the right button click on map will change functionality.
The basics of the pattern generation is the marking of
the desired observation field.
This is accomplished by means of right mouse button
clicks. Every time a right click is made, a vertex is
added to the observation polygon. As many as
needed vertices can be added to the polygon,
although it is necessary to add the vertices in order to
avoid self intersecting polygons.
Polygon will be drawn once you have more than three
points marked and it will get updated while points are
added. Desired survey polygon will be drawn using
intense translucid green color. Save area will be
drawn in a darker green color and projected
navigation legs will be drawn as black lines.
If an error is made, the clear button will clear the
points defined up to the moment and will reset the
area to start again.
2.9.6.3 Available parameters.
Once declared the desired survey field, a handful of parameters can be adjusted to fine-
tune the generated flight-plan.
• Save Area: UAV needs a non-negible space for making turns, this means that the
final and starting parts of every navigation leg would received bad coverage by the
cameras on-board as the UAV is still trying to manoeuvre to get into position. Save
area parameters controls a grow in the area surveyed to assure the UAV is well
stablished on navigation leg when it reaches the area of interest.
• Offset: This parameter controls the lateral separation of the navigation legs.
• Orientation: It controls the geograhic bearing that will be used to fly over the
disgnated survey area.
• Altitude: How high the overfly will be made. There are two modes for generating the
flight-plan point altitudes:
◦ Above Seal Level
◦ Above the terrain.
The “Resulting flight plan” informational display shows how many flight-plan points will be
needed for covering the desired field, how many flight-plan files the tool will generate and
the lateral separation of navigational legs in meters
Document Version 1.25 45
Zoom level of the map will affect the effective lateral separation of the navigation leg
generated. This is because the tool works on screen coordinates and generates
geographic coordinates when writing to file.
Figure 41: Pattern Generator Window