IRIS Explorer Module: ShowClosestPoint

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   NAME
        ShowClosestPoint

   DESCRIPTION
        The ShowClosestPoint module needs Pick data (see output ports of Render)
        and a lattice. From this input it generates a "Point Information" 
        describing the grid point closest to the picked geometry. The "Output" 
        port has to be linked to the "Screen - Geometry" input port of the Render 
        module which produced the "Pick" data. 

   INPUTS

      Pick -- Pick
         Pick data generated by a Render module.

      Lattice -- Lattice (Opt.)
         (-D, -vector, float).
         The grid points of this lattice are compared to the picked position.
         If no "Display Lattice" is specified, the coordinates and data of the
         grid point closest to the picked position are printed.

      Displayed Lattice -- Lattice (Opt.)
         (-D, -vector, float).
         If specified the coordinates and data of the grid point of this 
         lattice corresponding to the choosen grid point of the "Lattice" port
         are printed. This is useful for scaled lattices in order to print
         the original coordinates instead of the scaled coordinates which
         are compared to the pick data.

      Labels -- Parameter (Opt.)
         A string containing a list of quoted labels which may be included
         in the "Point Information".

   WIDGETS

      Include Labels -- Radio Box
         (No Labels, With Labels).
         Whether to include the "Labels" in the "Point Information".

      Include Line Breaks -- Radio Box
         (No Line Breaks, With Line Breaks).
         Whether to include line breaks in the "Point Information".

      Include Position and Data Tag -- Radio Box
         (No Position And Data Tag, With Position And Data Tag).
         Whether to include the tags for position and the set of data 
         channels in the "Point Information".

      Font Size -- Slider
         The font's size of the generated geometry. (See "Output".)

      Point Information -- Text
         The generated information about the grid point displayed in a 
         text widget. The same text is send to the "Output" port.

   OUTPUTS

      Output -- Geometry
         Text describing the grid point of the "Lattice" closest to the
         picked position. The "Output" port has to be linked to the 
         "Screen - Geometry" input port of the Render module which produced 
         the "Pick" data. 

   KNOWN PROBLEMS
      No possibility to choose font style or color yet.

   SEE ALSO
      Render
      
      -
      
      Martin Kraus (Martin.Kraus@informatik.uni-stuttgart.de)
      Visualization and Interactive Systems
      University of Stuttgart
      http://wwwvis.informatik.uni-stuttgart.de