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atomic_xyz

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Method to load ascii position file.


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<para>
XYZ formats are plain text format to store atomic positions. This format is quite simple, first line is ignore, then the second usually store a commentary (but this is not required), then all lines that are not beginning with a '#' are tryed to match "label x y z":. If succeed a node is added, if not, the next line is read.
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<!-- ##### FUNCTION read_xyz_file ##### -->
<para>

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@data: 
@io: 
@Returns: 


