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)