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AW00123404000 Features
Basler ace USB 3.0 213
camera.OffsetY.SetValue(0);
You can also use the Basler pylon Viewer application to easily set the parameters.
For more information about the pylon API and the pylon Viewer, see Section 3.1 on page 43 .
8.5.1 Center X and Center Y
The ROI feature also includes Center X and Center Y capabilities for horizontal and vertical
centering. When Center X is enabled, the camera will automatically center the ROI along the
sensor’s X axis. When Center Y is enabled, the camera will automatically center the ROI along the
sensor’s Y axis.
Enabling ROI Centering
You can enable ROI centering from within your application software by using the Basler pylon API.
The following code snippet illustrates using the API to enable automatic ROI centering:
camera.CenterX.SetValue(true);
camera.CenterY.SetValue(true);
8.5.2 Changing ROI Parameters "On-the-Fly"
Making ROI parameter changes “on-the-fly” means making the parameter changes while the
camera is capturing images continuously. On-the-fly changes are only allowed for the parameters
that determine the position of the ROI, i.e., the Offset X and Offset Y parameters. Changes to the
ROI size are not allowed on-the-fly.
When Center X is enabled, the Offset X setting is adjusted accordingly and
becomes read only.
Note: When Center X is disabled, the original Offset X setting that applied when
Center X was enabled, will not be automatically restored. If you want to return to
the original Offset X setting, you will have to do so "manually".
The Offset Y setting behaves analogously when Center Y is enabled and disabled.