How to write a junction in roadrunner hdmap using matlab?

there's a documentation shows how to create a junction in roadrunner hdmap using matlab

https://ww2.mathworks.cn/help/driving/ref/roadrunner.hdmap.junction.html#

but it didn't tells how to use.. does anyone have an example or could tell how to use?

Thanks!

Answer 1

[Sarthak]

Hi,

Please refer to the following code to create a junction in RoadRunner HDMaP using MATLAB:

% Create a new junction 
junction1 = roadrunner.hdmap.Junction; 

% Define the connections for the junction 
connection1 = roadrunner.hdmap.Connection('RoadSegment1', 'End', 'RoadSegment2', 'Start'); 
connection2 = roadrunner.hdmap.Connection('RoadSegment2', 'End', 'RoadSegment3', 'Start'); 

% Add the connections to the junction 
addConnection(junction1, connection1); 
addConnection(junction1, connection2); 

% Add the junction to the HDMap 
hdMap = roadrunner.hdmap.HDMap; 
addJunction(hdMap, junction1); 

In this example, we first create a new junction object using the ‘roadrunner.hdmap.Junction’ constructor. We then define two connections that connect three road segments (‘RoadSegment1’, ‘RoadSegment2’, and ‘RoadSegment3’). We add these connections to the junction using the ‘addConnection’ method. Finally, we add the junction to the HDMap using the ‘addJunction’ method.

You can refer to the following documentation:

Create junctions in RoadRunner HD Map using MATLAB - MATLAB (mathworks.com)

[SiQi Wang]

Thank you for your answer, but there is something wrong when I run these...

% Create a new junction 
junction1 = roadrunner.hdmap.Junction; 
% Define the connections for the junction 
connection1 = roadrunner.hdmap.Connection('RoadSegment1', 'End', 'RoadSegment2', 'Start'); 

The class roadrunner has no Constant property or Static method named 'hdmap'.

It says The class roadrunner has no Constant property or Static method named 'hdmap'.

And I also can't find the document of 'roadrunner.hdmap.Connection'. Is there really exists Connection objects?