The movement and status of all 3D models in a scene are defined in the
XML format for saving animation data. 3D meshes of the models are not stored
this file, but a link to the associated 3D model is. Additionally, it's
possible to set weather, time and other visual effects.
The "Model Instance" contains "Type" information and
is associated with the model's profile. Moreover, the instance contains
a list of states defined by time, so that the location, direction, animation
and display status can be set for each state. There are two types of "Model
Instance" (temporary instance" and "scene instance").
Temporary instances can be generated in real time whilst running a simulation,
however, they can't be saved in the UC-win/Road project. The 3D model profile
selected at the time of generation is used. When a profile hasn't been
assigned, an instance will not be generated. A scene instance can be generated
at the same time as a temporary instance, however it will be saved with
the project. This instance can be assigned for a model instance that exists
in the current UC-win/Road project as a part of the scenery. A traffic
light is an example of a "Scene Instance". During simulation,
instances generated by UC-win/Road are controlled by XML data.
A playlist can be created to play more than one XML file at the same time.
The playlist has a time offset for each item and can be used simultaneously
for multiple datasets. Moving objects are created in place and move based
on a linear interpolation of location coordinates. During simulation, traffic
flow is set to on. In addition, long distance simulations over short time
periods and high-speed playback of low-speed movements are also available.
A number of time units are supported. Notably, support is planned for absolute
time including date and time.
There are two major functions.
- Snap placement of instances to existing roads, footpaths and terrain:
In some cases, the simulation program doesn't use elevation or a road alignment
is different to the one in the VR space in UC-win/Road, so the snap function
places the simulation results in the specified position in UC-win/Road.
When searching for the optimal road or snap location, the following parameters
- Distance from the road and lane
- Comparison of road structures on the trajectory of the object instance
- Additional information from the XML file
- Control of the instances of moving vehicles with UC-win/Road traffic animation:
When reproducing a micro simulation, the traffic in UC-win/Road can be
initialised in any state.
Major GUI Functions
- Preview window:
This displays a 2D preview of the XML file. In this window, set the area
for the scene you want to display, assign scene instances to UC-win/Road
objects and so on.
- Model profile editor:
Create profiles and register 3D models.
- Playlist editor:
The playlist editor is effective even when multiple simulations are being
performed simultaneously. The time span of the simulation is displayed
on a Gantt chart. It's possible to drag & drop as well as input time
offsets for simulations.
A tool bar to control animation is displayed at the bottom of the screen.
- Camera mode:
Two new camera modes have been added.
-A spin mode that follows moving objects
-View from the centre (or a specified location) of an object
- Option screen:
Set the parameters for the traffic snap method.