MATLAB IMAGE ACQUISITION TOOLBOX - RELEASE NOTES Guida Utente Scaricare il pdf (Pagina 221)

100

101

Retrieving Timing Information

7-23

Retrieving Timing Information

In this section...

“Introduction” on page 7-23

“Determining When a Trigger Executed” on page 7-23

“Determining When a Frame Was Acquired” on page 7-24

“Determining the Frame Delay Duration” on page 7-25

Introduction

The following sections describe how the toolbox provides acquisition timing information,

particularly,

• Determining when a trigger executed

• Determining when a particular frame was acquired

To see an example of retrieving timing information, see “Determining the Frame Delay

Duration” on page 7-25.

Determining When a Trigger Executed

To determine when a trigger executed, check the information returned by a trigger

event in the object's event log. You can also get access to this information in a callback

function associated with a trigger event. For more information, see “Retrieving Event

Information” on page 8-8.

As a convenience, the toolbox returns the time of the first trigger execution in the video

input object's InitialTriggerTime property. This figure indicates which trigger is

returned in this property when multiple triggers are configured.

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MATLAB IMAGE ACQUISITION TOOLBOX - RELEASE NOTES Guida Utente Pagina 221

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