Const ltmmCameraControl_Pan = 1
Const ltmmCameraControl_Tilt = 2
Const ltmmCameraControl_Roll = 3
Const ltmmCameraControl_Zoom = 4
Const ltmmCameraControl_Exposure = 5
Const ltmmCameraControl_Iris = 6
Const ltmmCameraControl_Focus = 7
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. |
Comments
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 the ltmmCameraControl.GetRange method.
To get the current value for a specific property, call the ltmmCameraControl.Get method.
To set a specific property to a new value, call ltmmCameraControl.Set method.