Line crossing

To search for moments when the object crosses a virtual line:

In the Surveillance window, set the virtual line.
The end points of the line are connected by a two-colored dotted line. The direction of the object movement 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, hover the cursor over the end point and, holding down the left mouse button, move the mouse.
By default, both directions of movement 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 movement is indicated by a dimmed arrow.
Select the metadata source if there are several for this camera. This parameter isn't displayed if there is only one source.
Specify any number of additional parameters by clicking , if necessary (see Configuring the search parameters).
Set the search interval (see Setting a search interval).
Click the Search button.
Note
Once started, the search can be stopped at any time. To do this, click the Stop button, which appears instead of the Search button.

The found moments are displayed in the search results panel.

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