SubC Imaging DVRO User Manual page 42

DYNAMIC OVERLAYS
UDP Data
The UDP Overlay allows you to include overlay data
from your network encoded in UDP (User Datagram
Protocol) messages.
1. Port
Select the port number at which to listen for UDP
messages.
2. Header To Match
Enter the header/label under which your device
transmits the desired information. In this example, we
want the NMEI location sentence $GPGGA.
3. Format
Enter the cells containing the data you wish to display.
The header cell is 0. The header cell and the
subsequent data cells are separated by commas and
increase in number from left to right (header is 0, 1st
data cell is 1, 2nd data cell is 2, etc.) In this example, we
are displaying latitude and longitude from $GPGGA (in
degree and decimal minute form). The line begins with
$GPGGA,123519,4807.038,N,01131.000,E, so we enter
2,3,4,5.
4. Display Format
With this group of settings, you can further customize
how your UDP overlay looks and its position on the
screen. See Appearance and Positioning Options for
details.
5. To Front/To Back
Send the overlay to the front or back of the
back-to-front-ordering. Overlays closer to the front of the
order cover up those closer to the back of the order. For
example, you can use this positioning to easily place
dynamic text on top of a custom graphical background.
6. Reset
Clears all settings preset in the current overlay.
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Typical appearance: