AW00118303000 Chunk Features
Basler racer GigE 211
To retrieve data from a chunk appended to an image that has been received by your PC, you must
first run the image and its appended chunks through the chunk parser included in the pylon API.
Once the chunk parser has been used, you can retrieve the input line status at line trigger
information that was extant when acquisition of line i was triggered by doing the following:
Read the value of the Chunk Input Status At Line Trigger parameter.
You can set the Chunk Selector and Chunk Enable parameter value from within your application
software by using the pylon API. You can also run the parser and retrieve the chunk data. The
following code snippets illustrate using the API to activate the chunk mode, enable the input status
at line trigger chunk, run the parser, and retrieve the input status at line trigger chunk data for the
acquired line i:
Camera.ChunkModeActive.SetValue(true);
Camera.ChunkSelector.SetValue(ChunkSelector_InputStatusAtLineTrigger);
Camera.ChunkEnable.SetValue(true);
// grab image and feed it to the chunk parser ...
int MaxIdx = int(Camera.ChunkInputStatusAtLineTriggerIndex.GetMax());
for (int i = 0; i <= MaxIdx; i++)
{
Camera.ChunkInputStatusAtLineTriggerIndex.SetValue(i);
int value = int(Camera.ChunkInputStatusAtLineTriggerValue.GetValue());
printf("State of inputs at line %d: %X\n", i, value);
}
For detailed information about using the pylon API, refer to the Basler pylon Programmer’s Guide
and API Reference.
You can also use the Basler pylon Viewer application to easily set the parameters.
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