User`s guide

Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Trigger Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Setting the Values of Trigger Properties . . . . . . . . . . . . . . . . 6-6

About Trigger Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Specifying Trigger Type, Source, and Condition . . . . . . . . . . 6-6

Specifying the Trigger Type . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Comparison of Trigger Types . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Using an Immediate Trigger . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Using a Manual Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

Using a Hardware Trigger . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Setting DCAM-Specific Trigger Modes . . . . . . . . . . . . . . . . 6-17

Controlling Logging Parameters . . . . . . . . . . . . . . . . . . . . . . 6-24

Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

Specifying Logging Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

Specifying the Number of Frames to Log . . . . . . . . . . . . . . . 6-25

Determining How Much Data Has Been Logged . . . . . . . . . 6-26

Determining How Many Frames Are Available . . . . . . . . . . 6-28

Delaying Data Logging After a Trigger . . . . . . . . . . . . . . . . 6-31

Specifying Multiple Triggers . . . . . . . . . . . . . . . . . . . . . . . . 6-32

Waiting for an Acquisition to Finish . . . . . . . . . . . . . . . . . . . 6-34

Using the wait Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-34

Blocking the Command Line Until an Acquisition Completes 6-35

Managing Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38

Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38

Monitoring Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . 6-38

Modifying the Frame Memory Limit . . . . . . . . . . . . . . . . . . 6-39

Freeing Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40

Logging Image Data to Disk . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42

Logging Data to Disk Using VideoWriter . . . . . . . . . . . . . . 6-42

Logging Data to Disk Using an AVI File . . . . . . . . . . . . . . . 6-44

Creating an AVI File Object for Logging . . . . . . . . . . . . . . . 6-45

Logging Data to Disk Using an AVI File . . . . . . . . . . . . . . . 6-47