LMI Technologies Gocator 2100 Series, User Manual

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Gocator Line Profile Sensors - User Manual
Tools and Native Drivers • GenTL Driver • 453
Procedures Description
To schedule a
sensor
to start after a delay (ticks or microseconds), pass
GenTL/Sensor
in
the first call to
set_framegrabber_param
, followed by the remaining calls to the
function as described in the previous example:
set_framegrabber_param( AcqHandle, ‘XMLSettings’, ‘GenTL/Sensor’)
Generating Halcon Acquisition Code
Halcon lets you insert acquisition code into your code in the IDE.
To generate acquisition code:
1. In Halcon, in the Assistants menu, click Open New Image Acquisition .
2. In the dialog that opens, in the Code Generation tab, set Acquisition Mode to Asynchronous Acquisition .
3. Under Acquisition , click Insert Code to generate the code that will open the acquisition device.
To handle cases when the
grab_image
function times out while waiting for data, add a
try-catch
statement around the
grab_image
function code.
After the example code is generated, you should add a
catch
instruction to bypass the acquisition
timeout event, and use the Go2GenTL_ParseData function to extract information from the returned
image.
An example,
Continuous_Acq.hdev
, is included in the
Examples/Halcon
directory and is shown
below: