MultiCam Boards Documentation > GRABLINK series Documentation > GRABLINK DualBase Handbook > Functional Specification > Camera Classes > Camera Active Area

Camera Active Area

The Camera Active Area represents the rectangular array of pixels containing active video that are delivered by the camera to the frame grabber.

Hactive_Px Limits

For all cameras, the MultiCam parameter Hactive_Px represents the number of pixels in each line of the Camera Active Area.

The following restrictions apply to the value of Hactive_Px.

Restriction #1

The width of the Camera Active Area may contain at most 65535 pixels.

Restriction #2

Each tap delivers the same amount of pixels every line. In addition, Hactive_Px must be a multiple of XTaps.

Restriction #3

Each region must contain at least MinBytesPerRegionLine.

TapConfiguration

TapGeometry

Min. value

Multiple of…

Max. value

BASE_1T8

1X

24

1

65535

BASE_1T10

1X

12

1

65535

BASE_1T24

1X

8

1

65535

BASE_2T8

1X2

24

2

65534

BASE_2T10

1X2

12

2

65534

BASE_2T8

2X

48

2

65534

BASE_2T10

2X

24

2

65534

BASE_3T8

1X3

24

3

65535

BASE_3T8

3X

72

3

65535

Vactive_Ln Limits

For area-scan cameras only, the MultiCam parameter Vactive_Ln represents the number of lines of the Camera Active Area.

The following restrictions apply to the value of Vactive_Ln.

Restriction #1

The camera active window may contain at most 65535 lines.

Restriction #2

Each tap delivers exactly the same amount of pixels. In addition, Vactive_Ln must be a multiple of YTaps.