Technical data

SightLine Applications Command and Control

a track, etc. Column and Row coordinates correspond to the pixel coordinate within a 640x480* frame

of video in display (stabilized) coordinates. The origin is in the upper left corner of the image with

values increasing down and to the right. Up to 5 tracks may be simultaneously engaged. See the

Target Tracking Guide for more details about multiple target tracking.

* see Current Image Size (0x4E) for more information about capture image size

Byte offset Description

2 Packet length = 7

3 Packet type = 0x05

4 Column coordinate, LSB

5 Column coordinate, MSB

6 Row coordinate, LSB

7 Row coordinate, MSB

8 Flags

0x80 Rotate Zoom Modifier. OR this flag (set high

bit to 1) with any any of the flags below to

indicate coordinates are rotated and zoomed

with the display.

0x40 Source Coordinates. OR this flag (set bit 6 to 1)

with any other of the flags below to indicate that

the coordinates specified are in the source

image. By default, don't set this flag (bit 6 = 0)

for coordinates in the display image space.

0x00 Show Cursor only

0x01 Kill any existing targets and then designate a

new primary target at the cursor.

0x02 Designate another target at the cursor.

0x03 If there is a track near the coordinates, move

track to coordinates.

0x04 If there is a track near the coordinates, move

track to coordinates. Otherwise, add a new

track at coordinate location.

0x05 Designate track near coordinates as primary

target.

0x06 Designate track near coordinates as primary

target if there is one. If not, add new track at

coordinates.

0x07 If there is a track near coordinates, move track