Error while using helperDownloadPandasetData function

Question

gaurav 2024-1-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2073051-error-while-using-helperdownloadpandasetdata-function

回答： Gagan Agarwal 2024-1-30

While using this program

outputFolder = fullfile(tempdir,'Pandaset');
lidarURL = ['https://ssd.mathworks.com/supportfiles/lidar/data/' ...
    'Pandaset_LidarData.tar.gz'];
helperDownloadPandasetData(outputFolder,lidarURL);

I am getting this error but i have installed Lidar toolbox

Unrecognized function or variable 'helperDownloadPandasetData'.

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gaurav 2024-1-23

I already have all this installed

Walter Roberson 2024-1-23

在 MATLAB Online 中打开

Try using

openExample('deeplearning_shared/Lidar3DObjectDetectionUsingPointPillarsExample')

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Answer 1

Gagan Agarwal 2024-1-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2073051-error-while-using-helperdownloadpandasetdata-function#answer_1399421

在 MATLAB Online 中打开

Hi Gaurav,

The issue you are facing is because the 'helperDownloadPandasetData' is not an inbuilt function of the Lidar Toolbox and in the documentation it is explicitly defined as a user defined function at the end of page. I tried to run the code after defining the function and it was working fine.

function helperDownloadPandasetData(outputFolder,lidarURL)
% Download the data set from the given URL to the output folder.
    lidarDataTarFile = fullfile(outputFolder,'Pandaset_LidarData.tar.gz');    
    if ~exist(lidarDataTarFile,'file')
        mkdir(outputFolder);        
        disp('Downloading PandaSet Lidar driving data (5.2 GB)...');
        websave(lidarDataTarFile,lidarURL);
        untar(lidarDataTarFile,outputFolder);
    end    
    % Extract the file.
    if (~exist(fullfile(outputFolder,'Lidar'),'dir'))...
            &&(~exist(fullfile(outputFolder,'Cuboids'),'dir'))
        untar(lidarDataTarFile,outputFolder);
    end
end