XYZ Files
    
    
    
      XYZ is a data directory which
      contains examples of XYZ files, a very simple format
      for recording points in 3D space.
    
    
      An XYZ file has a simple structure:
      
        - 
          Comment lines begin with '#" in column 1, and may appear anywhere;
        
 
        - 
          Blank lines may appear anywhere.
        
 
        - 
          The coordinates of a point are written on a single line,
          separated by spaces;
        
 
      
    
    
      Example XYZ File:
    
    
      
        #  Corners of a tetrahedron
        #
        0.0  0.0  0.0
        1.0  0.0  0.0
        0.0  1.0  0.0
        0.0  0.0  1.0
      
    
    
      Licensing:
    
    
      The computer code and data files described and made available on this web page
      are distributed under
      the GNU LGPL license.
    
    
      Related Data and Programs:
    
    
      
      TABLE,
      a data directory which
      contains examples of TABLE files,
      a simple format for N points in M dimensions;
    
    
      
      XY,
      a data directory which
      contains examples of XY files,
      a simple 2D graphics point format;
    
    
      
      XYZL,
      a data directory which
      contains examples of XYZL files,
      a simple 3D graphics point and line format;
    
    
      Sample Files:
    
    
      
        - 
          crystal_4000.xyz,
          4000 points in an FCC crystal (data created by CRYSTAL_COORDINATES.F90)
        
 
        - 
          crystal_4000.png,
          a PNG image of the data.
        
 
        - 
          cube.xyz,
          the 8 vertices of a cube.
        
 
        - 
          dodecahedron.xyz,
          the 20 vertices of a dodecahedron.
        
 
        - 
          helix_201.xyz,
          201 points on a helix;
        
 
        - 
          helix_201.png,
          a PNG image of the data.
        
 
        - 
          icosahedron.xyz,
          the 12 vertices of an icosahedron.
        
 
        - 
          octahedron.xyz,
          the 6 vertices of an octahedron.
        
 
        - 
          sphere_122.xyz
          122 points on the surface of a sphere;
        
 
        - 
          sphere_482.xyz
          482 points on the surface of a sphere;
        
 
        - 
          sphere_spiral_700.xyz,
          700 points spiral around the surface of the unit sphere;
        
 
        - 
          sphere_spiral_700.png,
          a PNG image of the data.
        
 
        - 
          teapot_306.xyz,
           306 points on a teapot;
        
 
        - 
          teapot_306.png,
          a PNG image of the data.
        
 
        - 
          tetrahedron.xyz,
           the 4 vertices of a tetrahedron;
        
 
        - 
          truncated_icosahedron.xyz,
           the 60 vertices of a truncated icosahedron;
        
 
        - 
          truncated_icosahedron.png,
          a PNG image of the data.
        
 
        - 
          truncated_octahedron.xyz,
           the 24 vertices of a truncated octahedron;
        
 
        - 
          uniform_100.xyz,
           100 points uniformly distributed in the unit cube;
        
 
      
    
    
      You can go up one level to
      the DATA page.
    
    
    
      Last revised on 30 December 2008.