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To illustrate available fields of application of scripts in Jscript see the following examples which can be used to create additional functions in the system on the basis of the Script object.

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Settings of the font, color and position of text is configured on the settings panel of the Captioner object.

Example 2. Visualisation of operating the People Counter detection in the Video Surveillance monitor

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As a result the text message about number of entering and exiting people will be imposed on the video image while displaying the corresponding camera in the Video Surveillance monitor.

Settings of the font, color and position of text is configured on the settings panel of the Captioner object (see the Configuring captions display on a video image section of the Administrator’s Guide document).

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if (Event.SourceType=="TIMER" && Event.SourceId=="1" && Event.Action=="TRIGGER")
{
  mon="1";
  DebugLogString("on monitor "+ Itv_var("cam"));
  DoReactStr("MONITOR",mon,"ACTIVATE_CAM","cam<"+Itv_var("cam")+">");
  Itv_var("cam")="";
}
 
if (Event.GetParam("source_type")=="TELEMETRY" && Event.GetParam("action")=="GO_PRESET")
{
  DoReactStr("TIMER","1","START","bound<2>");
  var key=Event.GetParam("param4_val");
  DebugLogString("Key:"+key);
  Itv_var("cam")=Itv_var("cam")+key;
  DebugLogString(Itv_var("cam"));
}

Example 5. Sending command to camera using the camera HTTPAPI

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function DoPreset(preset)
{
    xmlhttp=new ActiveXObject("MSXML2.XMLHTTP");
    if(xmlhttp == null)
    {
           return;
    }
    xmlhttp.open("GET", "http://192.168.0.13/httpapi/SendPTZ?action=sendptz&PTZ_PRESETSET="+preset, false,"admin","1234");
 
    xmlhttp.send();
    DebugLogString(xmlhttp.status);
}
if (Event.SourceType == "MACRO" && Event.SourceId == "6" && Event.Action == "RUN") 
{
 DoPreset("85");
}
 
if (Event.SourceType == "MACRO" && Event.SourceId == "7" && Event.Action == "RUN") 
{
 DoPreset("86");
}

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Example 6. Script for framing abandoned objects in live video

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