VISSIM 5.30-05 User Manual

9 Presentation
3. Press NEW... to create a new keyframe entry in the list. Define the
keyframe properties and confirm with Ok.
4. The 3D view may be changed even while the Keyframe window remains
open. Doing so allows to create a series of keyframes. Simply repeat
steps 1 and 3 for every keyframe to be added.
5. After all keyframes have been created, click OK to close the list of
keyframes.
9.2.2.2 Properties & Options
For access to the properties of a keyframe, click PRESENTATION - 3D-VIDEO -
KEYFRAMES.... For list or data editing, cf. section 9.2.2.3.
● Name: Label or comment
● Starting time: Start time of this keyframe:
- If option Absolute start times is
checked in the keyframe list the time
entry refers to the start of the
simulation. The keyframe starts as
soon as the simulation second equals
the entered starting time.
- If option Absolute start times is not
checked in the keyframe list the start
time is interpreted as the time relative
to the moment when the AVI
RECORDING command was activated.
Changing the Starting time also allows for changing the sequence
position of the keyframe.
● Dwell Time: The time the simulation will be viewed without movement
from the position defined by this keyframe.
Using the Starting time and Dwell time, VISSIM performs a check whether
the current keyframe fits into the existing keyframe sequence: Neither for
the start time nor for the dwell time of a keyframe a value can be set that
intersects with the dwell time of another keyframe. However, all
subsequent keyframes may be shifted to accommodate for the new starting
time and/or dwell time by activating the option Shift subsequent
Keyframes (see below).
● Movement defines the type of movement between the camera positions
of this and the next keyframe:
- A linear movement results in a change of position at constant speed.
- A sinusoidal movement uses slower speeds closer to the keyframe
positions and accelerates between them thus making the movement
smoother.
- A linear-sinus movement starts with a constant speed and slows
down towards the next keyframe.
470 VISSIM 5.30-05 © PTV AG 2011