not able to find helperLidarMapBuilder?

I just installed matlab 2020a and helperLidarMapBuilder class is not found.

Could someone please either share the class or documentation or lead me to understand where this class is?

I am trying to follow this example: https://www.mathworks.com/help/driving/examples/build-a-map-from-lidar-data.html

Any help is appreciated.

Answer 1

[Shivang Srivastava]

The error is not reproducible at my end.

In my opinion you must be missing the Automated Driving Toolbox in your MATLAB installation. You can add it using the Get More Apps feature.

You can refer to the Get and Manage Add-Ons documentations: https://in.mathworks.com/help/matlab/matlab_env/get-add-ons.html

[Georg Novotny]

@Shivang Srivastava I am also not able to find the helperLidarMapBuilder calss.

The other helper functions are shared in the Supporting Functions section of the Build a Map from Lidar DATA but the helperLidarMapBuilder calss is missing.

Couldn't find it via the search here either.

Would be happy if you would help me reslolve this.

Please see output of `ver`

-----------------------------------------------------------------------------------------------------

MATLAB Version: 9.9.0.1495850 (R2020b) Update 1

Operating System: Microsoft Windows 10 Education Version 10.0 (Build 19042)

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

-----------------------------------------------------------------------------------------------------

MATLAB Version 9.9 (R2020b)

Simulink Version 10.2 (R2020b)

Automated Driving Toolbox Version 3.2 (R2020b)

Computer Vision Toolbox Version 9.3 (R2020b)

Control System Toolbox Version 10.9 (R2020b)

Curve Fitting Toolbox Version 3.5.12 (R2020b)

Data Acquisition Toolbox Version 4.2 (R2020b)

Deep Learning Toolbox Version 14.1 (R2020b)

GPU Coder Version 2.0 (R2020b)

Global Optimization Toolbox Version 4.4 (R2020b)

Image Acquisition Toolbox Version 6.3 (R2020b)

Image Processing Toolbox Version 11.2 (R2020b)

Lidar Toolbox Version 1.0 (R2020b)

MATLAB Coder Version 5.1 (R2020b)

Model Predictive Control Toolbox Version 7.0 (R2020b)

Model-Based Calibration Toolbox Version 5.9 (R2020b)

Navigation Toolbox Version 1.2 (R2020b)

Optimization Toolbox Version 9.0 (R2020b)

Parallel Computing Toolbox Version 7.3 (R2020b)

Partial Differential Equation Toolbox Version 3.5 (R2020b)

ROS Toolbox Version 1.2 (R2020b)

Reinforcement Learning Toolbox Version 1.3 (R2020b)

Robotics System Toolbox Version 3.2 (R2020b)

Robust Control Toolbox Version 6.9 (R2020b)

Sensor Fusion and Tracking Toolbox Version 2.0 (R2020b)

Statistics and Machine Learning Toolbox Version 12.0 (R2020b)

Symbolic Math Toolbox Version 8.6 (R2020b)

Vehicle Dynamics Blockset Version 1.5 (R2020b)

Please also see my files in /R2020b/toolbox/driving/drifingdemos:

helperCreateSensorDemoScenario.m

helperCustomUI.m

AutoLaneMarking.m

helperPlotSensorDemoDetections.m

AutomatingGroundTruthLabelingofLaneBoundaries.m

helperRunSensorDemoScenario.m

Contents.m

helperSimStatusChanged.m

drivingdemohelp.m

helperUIConnector.m

drivingdemos.m

helperUpdateSensorDemoDisplay.m

helperClusterDetections.m

html/

helperCollectScenarioMetrics.m

helperCreateSensorDemoDisplay.m

[Georg Novotny]

It is included here though:

C:\Users\<user-name>\Documents\MATLAB\Examples\R2020b\driving\BuildAMapFromLidarDataExample

[Gero Nootz]

Thanks, Georg,

I had the same problem an ultimately found the file in C:\Program Files\MATLAB\R2020b\examples\driving\main