Add a line-arc road to a scene, then extract objects for the control points of the
line-arc road curve.
Create a roadrunner object,
specifying the path to an existing project. For example, this code shows the path to a
project, on a Windows® machine, located at "C:\RR\MyProject". This code
assumes that RoadRunner is installed in the default location, and returns an object,
rrApp, that provides functions for performing basic tasks such as
opening, closing, and saving scenes and projects.
Note
If you are opening RoadRunner from MATLAB® for the first time, or if you have changed the RoadRunner installation location since you last opened it from MATLAB, you can use the roadrunnerSetup function to specify new
default project and installation folders to use when opening RoadRunner. You can save these folders between MATLAB sessions by selecting the Across MATLAB
sessions option from the corresponding drop down.
Create an object for the RoadRunner authoring API, rrApi, that references the object for the
current RoadRunner instance rrApp. The rrApi object enables you
to programmatically author scenes and scenarios, such as by adding and modifying roads, actors,
and logic components, using MATLAB.
Extract the scene and scenario objects from the
Scene and
Scenario properties of the authoring API object
rrApi,
respectively. The extracted
Scene object enables you to specify the scene in
which to add scene components such as roads and lanes. The extracted
Scenario (RoadRunner Scenario) object
enables you to specify the scenario in which to add scenario components such as actors and
logic.
Extract the object for your
RoadRunner project from the
Project property of the authoring API object
rrApi. The extracted
Project object enables you to
specify the project folder for the current
RoadRunner session from which to retrieve asset objects. You can use the asset objects to
assign assets to roads in your scene, or to actors in your
scenario.
To create a line-arc road, use the addLineArcRoad
function and specify the scene in which to add the road and the
xy-positions of the control points. Then, extract the line-arc
curve from the HorizontalCurve property of the road
rrRoad.
Extract LineArcRoadCurvePoint Objects
To extract LineArcRoadCurvePoint objects for the first and
second control points of the line-arc curve lineArc, specify the
first and second elements from the ControlPoints property of
lineArc.
You can use the LineArcRoadCurvePoint objects to modify the
properties of the road curve control points. By modifying the control point
properties, you can change the shape and position of the road in your RoadRunner scene.
To move the road rrRoad in the scene, change the values of the
Positions properties of the line-arc road curve points
arcPoint1 and arcPoint2.
