eLine Technology EYS-VMS eyStream User Manual Part3 - Manual (Page 39)

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Line
The visual element Line is needed for searching the archive by the criterion Object trajectory
crossing a virtual line. This visual element sets a virtual line in the field of view of a video
camera; instances of something crossing this line will be found in the archive.
The end points of the line are connected by a two-colored dotted line. The direction of the object's
motion across the line is indicated by dotted arrows.
By default, the end points of the line have the coordinates (50%, 30%) and (50%, 70%) as
percentages of the width and height of the frame, respectively.
To move the end point of a line, position the cursor on the end point and hold down the left
mouse button as you move the mouse.
By default, both directions of motion across the virtual line are taken into account when searching
the archive. If you do not need to search in a specific direction, click the button corresponding to
that direction.
Attention!
At least one direction must be selected for the search.
Note
A disregarded direction of object motion is indicated by a dimmed arrow.
Area
The visual element Area is required for searching the following criteria:
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