Point cloud read / write (2): read / write TXT point cloud (space separated | comma separated)

1 txt Point cloud file format

txt Point cloud files to That's ok Arrange in units , Each line corresponds to a point , It can contain three-dimensional coordinates 、 Reflection intensity 、 True color 、GpsTime Equal elements , Elements are usually separated by Space perhaps English comma Division .

It is precisely because of the different element delimiters , bring txt Point cloud files are loaded in different ways ：

• For the element delimiter is Space Of txt Point cloud , Loading is relatively simple .
• For element separator, English comma, etc Non space characters Of txt Point cloud , Loading a point cloud file requires Convert non space characters to spaces .

Be careful ： In order to distinguish different elements in a row , Space separators are usually tab stops \t, Instead of ordinary spaces .

The following is for the two element separation methods txt Point cloud , Explain how to load in turn txt Point cloud