Help Version 19.0.2017.10.27
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typedef enum ltmmCameraControlProperty{ltmmCameraControl_Pan = 1,ltmmCameraControl_Tilt,ltmmCameraControl_Roll,ltmmCameraControl_Zoom,ltmmCameraControl_Exposure,ltmmCameraControl_Iris,ltmmCameraControl_Focus} ltmmCameraControlProperty;
The ltmmCameraControlProperty constants define individual settings in a camera.
Constant |
Description |
ltmmCameraControl_Pan |
[1] Specifies the pan property. The pan property is measured in degrees. Possible values range from 180 to +180. The default value is zero. Positive values are clockwise from the origin (the camera rotates clockwise when viewed from above), and negative values are counterclockwise from the origin. |
ltmmCameraControl_Tilt |
[2] Specifies the tilt property. The tilt property is measured in degrees. Possible values range from 180 to +180. The default value is zero. Positive values point the imaging plane up, and negative values point the imaging plane down. |
ltmmCameraControl_Roll |
[3] Specifies the roll property. The roll property is measured in degrees. Possible values range from 180 to +180. The default value is zero. Positive values cause a clockwise rotation of the camera along the image-viewing axis, and negative values cause a counterclockwise rotation of the camera. |
ltmmCameraControl_Zoom |
[4] Specifies the zoom property. The zoom property is measured in millimeters. Values range from 10 to 600 or as stated by the device documentation. |
ltmmCameraControl_Exposure |
[5] Specifies the exposure (shutter speed) property. The exposure property is measured in log base 2 seconds. In other words, for values less than zero, the exposure time is 1/2n seconds, and for values zero or above, the exposure time is 2n seconds. |
ltmmCameraControl_Iris |
[6] Specifies the iris property. The iris property is measured in units of (f-stop * 10). F-stop is aterm used to indicate the amount of light passing through the lens. The smaller the f-number, the greater the amount of light passing through the lens. Typical F-stops included on manual-iris lenses are 1.4, 2.0, 2.8, 4.0, 5.6, 8.0, 11, 16, and 22 (these are actual values, not multiplied by 10). |
ltmmCameraControl_Focus |
[7] Specifies the focus property, as the distance to the optimally focused target. The focus property is measured in millimeters. The range and default value are specific to the device. |
The range and default values of the camera control properties might be specific to the camera (consult the device documentation).
To get the range of values for a certain property, call IltmmCameraControl::GetRange.
To get the current value for a specific property, call IltmmCameraControl::Get.
To set a specific property to a new value, call IltmmCameraControl::Set.
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