Pre- and Post-Trigger Saving to Disk

This example is useful for applications that require saving images that occur around an event (trigger). It allows you to specify the number of pre- and post-trigger images to save to disk.

Note: The total number of pre- and post-trigger buffers is limited by the amount of RAM on your system. Additionally, by default, the maximum number of buffers allowed by NI-IMAQ is 50. To change this number, open Measurement & Automation Explorer and select Tools>>IMAQ>>Max Number of Buffers.

Requirements

Filename: preposttrigger.vi

Software Requirements

Application Software: LabVIEW Full Development System 6.0
Language(s): LabVIEW

Hardware Requirements

Hardware Group: Vision (IMAQ)
Driver: NI-IMAQ 2.5.3

Filename: 201021.vi

Software Requirements

Application Software: LabVIEW Base Development System 7.1
Language(s): LabVIEW

Hardware Requirements

Hardware Group: Vision (IMAQ)
Driver: NI-IMAQ 2.6

Filename: 201020.vi

Software Requirements

Application Software: LabVIEW Base Development System 6.1
Language(s): LabVIEW

Hardware Requirements

Hardware Group: Vision (IMAQ)
Driver: NI-IMAQ 2.6

Reader Comments | Submit a comment »

confused by the image acquisition.
In the vi, the output images from the "IMAQ create.vi" are directly passed to the input of the "IMAQ write BMP file.vi". The "IMAQ configure buffer.vi" and "IMAQ start.vi" start after the "IMAQ create.vi" and seemed to have nothing to do with the final images to be saved. From what I understand, the "IMAQ create.vi" only creates an image, not actually acquire it from the camera. Is it right?
- xxu@tamu.edu - Jun 2, 2006