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Gemini Software Operation
colour selection dialogue. Additionally, for each marker, the Cartesian coordinate is displayed
in the Distance Marker panel. The Distance Marker line width can be set by entering a
value into the Marker Width field.
In the Gemini data view, each marker can be clicked and dragged to a new position. The
distance measurement will continuously update and reflect the distance between the two
markers.
The distance between the Distance Marker and Set Point is displayed in the bottom
right of the Gemini data view (see image below). The displayed values are calculated as:
Distance (X, Y) = (Distance Marker - Set Point)
The Distance Marker range/ Y coordinate may be updated from an external sensor. Enabling
the Distance Range from Sensor button will update the value whenever a configured
sensor message is received. See Appendix E, Gemini Software String Decode for the
appropriate Marker Range decode options.
5.2.7. Target Tracking
Tracking provides a mechanism of highlighting objects and following their
Target
movement over subsequent sonar frames. Once enabled, targets will be automatically
determined and tracked when selected. There are two main methods of target tracking
available within the Gemini software:
Document: 0685-SOM-00001, Issue: 12
Note
In order to click and drag the markers the click must be within the head image.
For example, if a marker is at location (0, 0) the clickable area is fairly small and
care must be taken to click the correct area. In this case, the Distance Marker
line may reach past the head image boundary and would only be clickable where
it overlaps the head image.
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Gemini Imaging Sonar
© Tritech International Ltd.
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