CFD object contour --- create the contour object (obstacle) 
                          for CFD


    author : KGT (Kubota Graphics Technologies) Inc.

    Makefile.osf1    for DEC Alpha/osf1 (2.1)
    Makefile.sun2    for SUN Solaris2.3 
    f77              special f77 

    objectcont.f     source file

    objectcont.net   sample network
    sample.dat       sample data 
    sample.fld       field data (for sample.dat)
    sample2.fld      binary data (= sample.fld (sample.dat))
                     This module needs a special data.

    objectcont.txt   Module Reference


  Note : You have to use "f77" in this directory to create the module.
Name    CFD object contour --- create a contour surface 
                               (on obstacle) for CFD

Summary
   Name           CFD object contour
   Type           mapper
   Inputs         field 3D 3-space 2-vector real irregular
                  colormap
   Outputs        geometry

   Parameters     Name      Type      Default     Min/Max
                  On/Off    boolean   on          on/off

Description
   The "CFD object contour" module inputs 2-vector field and 
   creates a contour surface(on obstacle) for CFD data. 
   This module tells which digit (0 or 1) is in the node as 
   flag data. 
   The first component data (of 2-vector) is the scalar value 
   for color, and the second component is the flag data. 
   The flag data is as follows. 1 means the fluid node and 
   0 is the non-fluid node.

       1---1---1
       +   +   +
       0---0---1           +---+
       +   +   +   ---->   |   |   Non-fluid Area
       0---0---1           +---+   creates contour surface 

       data(1,i,j,k) = the scalar value for color
       data(2,i,j,k) = the flag data for CFD data
                        1 : fluid node     
                        0 : non-fluid node 

Parameters
   On/Off               Determines the visible/invisible.

Example
   This example needs a sample data(Sample.fld) in this directory.
   Choice the "two" value in the "extract vector" module.
   Note to set the lower/upper value (of the "generate colormap").
  
                             read_field 
                                 |
                         +-------+---------------------+
                         |                             |        
                   extract vector                      |       
                         |                             |
     generate colormap   +------------+           volume bounds
               |         |            |                |
               +-----+   |            |                |
                     |   |         print field         |
                 CFD object contour                    |
                         |                             |
                         +-------+---------------------+
                                 |
                            geometry viewer

   See also (the other PDS module)
             * Read_CFD
             * CFD_object
             * CFD_objectline
             * contour_line
             * contour_mesh