Справочник Пользователя для Macromedia flash media server 2-client-side actionscript language reference for flash media server 2

Camera class

21

Camera.motionLevel

Availability

■

Flash Player 6.

■

Flash Media Server (not required).

Usage

public motionLevel : Number  [read-only]

Description

Property (read-only); a numeric value that specifies the amount of motion required to invoke 

Camera.onActivity(true)

. Acceptable values range from 0 to 100. The default value is 50.

Video can be displayed regardless of the value of the 

motionLevel

 property. For more 

information, see 

Example

The following example continually detects the motion level of a camera feed. Create a new 
video instance by selecting New Video from the Library options menu. Add an instance to the 
Stage and give it the instance name 

my_video

. Add a Label component instance to the Stage 

and give it the instance name 

motionLevel_lbl

, a NumericStepper with the instance name 

motionLevel_nstep

, and a ProgressBar with the instance name 

motion_pb

. Then add the 

following ActionScript to Frame 1 of the Timeline:

var my_cam:Camera = Camera.get();
var my_video:Video;
my_video.attachVideo(my_cam);

// Configure the ProgressBar component instance.
var motion_pb:mx.controls.ProgressBar;
motion_pb.mode = "manual";
motion_pb.label = "Motion: %3%%";

var motionLevel_lbl:mx.controls.Label;
// Configure the NumericStepper component instance.
var motionLevel_nstep:mx.controls.NumericStepper;
motionLevel_nstep.minimum = 0;
motionLevel_nstep.maximum = 100;
motionLevel_nstep.stepSize = 5;
motionLevel_nstep.value = my_cam.motionLevel;

/* Continuously update the progress of the ProgressBar 
component instance to the activityLevel 
of the current Camera instance, which is defined in my_cam. */