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1. Select Line crossing from Search in archive dropdown menu in the functional menu.
   
2. Pressing the left mouse button set end points of the line in video recording display field.
   

3. Do all necessary operations with the line. Operations with the line are performed in the table.

   Operation	Operation result
   Press the left mouse button in video surveillance window	End point of the line creating
   Hover cursor over the end point and pressing the left mouse button shift the mouse	End point of the line shift.When the size of the line is changed, the size of the arrow (that set the object’s direction across the line) is changed too (see item 6). The size of the arrow defines the speed of required objects: the longer the arrow, the higher the speed is and vice versa.
   Hover cursor over the end point and click the right mouse button	Line deleting

4. To select the type of the object that was crossing the set line it's necessary to click . Available types of the object are performed below.

   1.  Any object. Search will give out the video recordings in which line is crossed by any object
   2.  Human being. Search will give out the video recordings in which line is crossed by a humang being
   3.  Car. Search will give out the video recordings in which line is crossed by a car

5. By pressing the left mouse button to one of grey arrow's end, set the traffic direction of the object across the line. Selected arrow becomes white.
   
   As a result the search selects the video recordings by given parameters. Search results are displayed in timestamps column.
   

   Info
   title Note.
   Setting the traffic direction of the object by VMDA detector depends strongly on Tracker object settings (see Intellect software package: Administrator's Guide manual). With bad settings the traffic direction can be determined incorrectly and, consequently, results can be wrong while searching in line crossing archive. The settings of Tracker object should be used experimentally for every case.

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