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.\" RCSid "$Id: dgraph.1,v 1.2 2003/12/09 15:59:06 greg Exp $" |
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.TH DGRAPH 1 6/24/98 RADIANCE |
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.SH NAME |
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dgraph - do a set of graphs to a dumb terminal |
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.SH SYNOPSIS |
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.B dgraph |
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[ |
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.B -w width |
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][ |
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.B -l length |
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][ |
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.B +variable value .. |
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][ |
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.B file .. |
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] |
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.SH DESCRIPTION |
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.I Dgraph |
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reads each graph |
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.I file |
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in sequence and converts it to a character plot |
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displayable on any ascii device. |
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If no files are given, the standard input is read. |
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.PP |
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Across the top of the plot, the extrema are printed. |
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This is the only indication of the axis size. |
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Curves are represented with their respective letter ('A' for |
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curve A, etc.) at each point. |
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Where two or more curves cross, a number is shown instead. |
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.PP |
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The size of the output array can be specified as a |
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certain |
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.I width |
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and |
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.I length. |
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The default size is 79 by 22. |
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.PP |
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Variables can be set explicitly with |
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.I +variable value |
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options. |
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See bgraph(1) for details. |
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.SH EXAMPLE |
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To get a quick glimpse of the sine function from 0 to 4. |
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.nf |
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dgraph |
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A(x)=sin(x) |
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Anpoints=100 |
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xmin=0 |
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xmax=4 |
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^D |
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.fi |
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.SH AUTHOR |
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Greg Ward |
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.SH BUGS |
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There is no mechanism provided for undefining a variable. |
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.SH "SEE ALSO" |
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bgraph(1), gcomp(1), icalc(1), igraph(1) |
