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MultiCam Boards Documentation > MultiCam Documentation > MultiCam User Guide > The Channel Class > Using Line-Scan Acquisitions > Page Operation > Page Acquisition Phase

Page Acquisition Phase

Once the page acquisition phase is started, the frame grabber acquires data lines and stores them into one surface.

Destination surface receives an arbitrary number of lines as defined by parameter PageLength_Ln. See "Selecting Optimal PageLength_Ln" for more info.

Parameter LineIndex reflects the number of lines already written in a partially filled surface. If SeqLength_Ln is not a multiple of PageLength_Ln, the surface will be partially filled. A new surface is selected at each begin of Page acquisition phase.

Lines are acquired at a rate defined by the line trigger condition. When object speed is variable, it is convenient to generate a line trigger derived from a motion encoder. See "line trigger condition" for more info.