Radiance dgraph program

DGRAPH(1)                                                            DGRAPH(1)

NAME

       dgraph - do a set of graphs to a dumb terminal

SYNOPSIS

       dgraph [ -w width ][ -l length ][ +variable value ..  ][ file ..  ]

DESCRIPTION

       Dgraph reads each graph file in sequence and converts it to a character
       plot displayable on any ascii device.  If no files are given, the stan-
       dard input is read.

       Across  the top of the plot, the extrema are printed.  This is the only
       indication of the axis size.  Curves are represented with their respec-
       tive  letter  ('A' for curve A, etc.) at each point.  Where two or more
       curves cross, a number is shown instead.

       The size of the output array can be specified as a  certain  width  and
       length.  The default size is 79 by 22.

       Variables  can  be  set  explicitly  with +variable value options.  See
       bgraph(1) for details.

EXAMPLE

       To get a quick glimpse of the sine function from 0 to 4.
            dgraph
            A(x)=sin(x)
            Anpoints=100
            xmin=0
            xmax=4
            ^D

AUTHOR

       Greg Ward

BUGS

       There is no mechanism provided for undefining a variable.

SEE ALSO

       bgraph(1), gcomp(1), icalc(1), igraph(1)

RADIANCE                            6/24/98                          DGRAPH(1)