Kessler kOS icon

Graph

The kOS Graph provides users with a work area to setup and manipulate camera moves for all active axes.




The Graph consists of the following components:


Grid

Time Indicator

Key Frame Menu

Key Frame Handles

Marker Menu

 

Grid

 

The Graph region of kOS has a grid where motor positions are managed in position and time for all axes. A single axis consists of motor movement such as slide, pan, tilt, etc. Motor positions for a selected axis are defined by key frames and curves. A key frame expresses a set motor position in time. A curve exhibits the computed motor path between adjacent key frames. The combination of key frames and curves determines motor movements.
 

 
For a selected axis, key frames are displayed as blue dots. The curve between adjacent key frames is drawn as a red line. If curve handles have been activated, they appear as purple lines terminated by white dots. Axes not selected as active display red key frames and gray curves. Curve handles only display on the active axis.

 

Time Indicator

 

The time indicator identifies where a camera move is in time. It is displayed as a vertical yellow line drawn on top of the Grid.
 

 
The location of the time indicator is determined by either the playback of a camera move, or by the timeline slider.

 

Key Frame Menu

 

The Key Frame menu provides options to delete key frames, curves, and axes. The Graph Tasks side panel menu has options to allow users to manipulate key frame positions and control handles. The Key Frame menu is activated by a right mouse click on a key frame.
 

 
The Key Frame Menu consists of the following items:

   

Bump Arrows

Move to Motor Position

Key Frame Coordinates

Move Time Line Here

Delete Key Frame

Delete Axis

Delete All Axes

Previous/Next Buttons

 
Bump Arrows

  

The Bump Arrow buttons allow users to move key frames one pixel at a time. The up and down arrows move key frames in motor space, and the left and right arrows move key frames in time space.


Move to Motor Position


The Move to Motor Position button will reposition the motor to match the key frame position.

 

Key Frame Coordinates

 

The Key Frame Coordinates field displays the time and motor position of the selected key frame. Note if the Range fields have values, then the motor position is displayed within that range instead of encoder counts.


Move Time Line Here


The Move Time Line Here menu item moves the time line cursor to the selected key frame.


Delete Key Frame

  

The Delete Key Frame button removes the selected key frame from the Grid. The delete only affects the selected key frame, and the curves are redrawn with the remaining key frames

 

Delete Axis

  

The Delete Axis button removes the selected axis from the Grid. Deleting an axis consists of removing all the key frames and computed curves of the selected axis.

 

Delete All Axes

  

The Delete All button removes all axes from the Grid. Regardless of which axis is active, all key frames and curves from all axes are deleted. A warning prompt is displayed before the axes are removed.


Previous/Next Buttons


The Previous and Next buttons will jump the key frame menu to the previous or next key frame, if available.

   

Key Frame Handles

 

Key frame handles manipulate the shape of the curve computed between adjacent key frame points. The handles are displayed by double clicking or tapping on an unlocked key frame position. When activated, the control handles are drawn as purple lines. The control points of the handles are displayed as white dots.
 

 
To modify the shape of a curve, drag a control handle within the Grid.
 

 
As the control handles are moved, the shape of the curve is updated to reflect the position of the control points. Curve shaping continues until the control handle is released.

 

Marker Menu

  

The Marker Menu option allows users to move markers around the graph and delete a single marker, all markers on an axis, or all markers on all axes.

  
 

The Marker Menu consists of the following items:

 

Arrow Keys

Move to Motor Position

Position Display

Move Time Line Here

Delete Mark

Delete Axis Marks

Delete All Marks

Previous/Next Buttons

   

Arrow Keys

 

The Arrow Keys allow a user to move motor positions in space and time. The up and down arrow keys move the selected marker in position space. The left and right arrow keys move the selected marker in time space.


Move to Motor Position


The Move to Motor Position button will reposition the motor to match the key frame position.

 

Position Display

  

The Position Display shows the current location of the selected marker. The left display represents the marker time in hours, minutes, and seconds. The right display shows the marker encoder count value.


Move Time Line Here


The Move Time Line Here menu item moves the time line cursor to the selected marker.

 

Delete Mark

 

The Delete Mark menu item removes the selected marker from the Grid. The delete operation only affects the selected marker.

 

Delete Axis Marks

  

The Delete Axis Marks menu item removes all markers on the selected axis from the Grid. 

 

Delete All Marks

  

The Delete All Marks menu item removes all markers from the Grid.


Previous/Next Buttons


The Previous and Next buttons will jump the key frame menu to the previous or next key frame, if available.