Overview:Camera PTZ.
(pan, pan speed, tilt, tilt speed, zoom, zoom speed.)
.
The pan and tilt speed values, as well as the pan and tilt directions, have to be updated simultaneously, since in most applications, a joystick is used to control camera movements. The movement must be smooth in all directions, for all magnitudes of pan and tilt speed.
The network output variable of this type transmits the speed and direction for pan, tilt, and zoom, in each update, to meet the requirements described above. If the speed is zero, e.g., in of case of a network variable of SNVT_ptz from a non-joystick, a default speed will be used. This default speed may optionally be programmable, via a configuration property.
EXAMPLES
Example 1
| tilt.direction |
= |
PAN_RIGHT |
| tilt.speed |
= |
125 (0x7D) |
| Physical value |
= |
Pan to the right by 50.0% |
Example 2
| tilt.direction |
= |
TILT_UP |
| tilt.speed |
= |
63 (0x3F) |
| Physical value |
= |
Tilt up by 25.2% |
Details: | | Resource Set:
| Standard 00:00:00:00:00:00:00:00-0 | | Index:
| 150 | | Obsolete:
| no | | Size:
| 6 | | Programmatic Name:
| SNVT_ptz | |
Neuron C Type:
| |
Structure
| | pan_dir | Pan direction.
(pan direction names.)
.
| | | | | pan_speed | Pan speed.
(% of full level.)
.
| | | | unsigned short | | Minimum:
| 0 | | Maximum:
| 250 | |
Scaling (A,B,C):
| 4, -1, 0 | |
Scaled value:
| 4
*10 -1
*(Raw+0)
| |
Resolution:
| 0.4 |
| | tilt_dir | Tilt direction.
(tilt direction names.)
.
| | | | | tilt_speed | Tilt speed.
(% of full level.)
.
| | | | unsigned short | | Minimum:
| 0 | | Maximum:
| 250 | |
Scaling (A,B,C):
| 4, -1, 0 | |
Scaled value:
| 4
*10 -1
*(Raw+0)
| |
Resolution:
| 0.4 |
| | zoom | Zoom direction.
(zoom direction names.)
.
| | | | | zoom_speed | Zoom speed.
(% of full level.)
.
| | | | unsigned short | | Minimum:
| 0 | | Maximum:
| 250 | |
Scaling (A,B,C):
| 4, -1, 0 | |
Scaled value:
| 4
*10 -1
*(Raw+0)
| |
Resolution:
| 0.4 |
|
| |
Formats:
| SNVT_ptz: text("%m %f %m %f %m %f", pan_dir, pan_speed, tilt_dir, tilt_speed, zoom, zoom_speed) | |
Used by:
| SCPTdefaultPanTiltZoomSpeeds |
|
