Installing Liblas Library on Ubuntu

Installing LibLas:

$sudo apt-get update
$sudo apt-get install liblas-dev

$sudo apt-get install liblas-bin

Converting an XYZ point cloud to LAS format:

test.xyz is a point cloud in following format;

t1 a1 x1 y1 z1

t2 a2 x2 y2 z2

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The .las format of the (x,y,z) points can be obtained 

by using the following command;

$ txt2las -i test.xyz -o lidar.las -parse ssxyz