PCREAD: Not all points defined in the header could be loaded.

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Sushmitha Kudari 2020-2-22

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https://ww2.mathworks.cn/matlabcentral/answers/507011-pcread-not-all-points-defined-in-the-header-could-be-loaded

评论： Sushmitha Kudari 2020-2-22

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I have the following function to export data into .ply format. However when I use

ptCloud = pcread('OutputFile.ply')

it looks like all the properties of ptCloud is empty.

Data File: Data File

Code to Export as .ply:

function write_ply(fname, P) %C
% Input: fname: output file name, e.g. 'data.ply'
%        P: 3*m matrix with the rows indicating X, Y, Z
%        C: 3*m matrix with the rows indicating R, G, B
num = size(P, 2);
header = 'ply\n';
header = [header, 'format ascii 1.0\n'];
header = [header, 'comment written by Sush\n'];
header = [header, 'element vertex ', num2str(num), '\n'];
header = [header, 'property float32 x\n'];
header = [header, 'property float32 y\n'];
header = [header, 'property float32 z\n'];
header = [header, 'property uchar red\n'];
header = [header, 'property uchar green\n'];
header = [header, 'property uchar blue\n'];
header = [header, 'end_header\n'];
data = [P'];
    %, double(C')];
fid = fopen(fname, 'w');
fprintf(fid, header);
dlmwrite(fname, data, '-append', 'delimiter', '\t', 'precision', 3);
fclose(fid);