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.\" RCSid "$Id$"
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.TH PSIGN 1 10/9/97 RADIANCE
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.SH NAME
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psign - produce a RADIANCE picture from text.
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.SH SYNOPSIS
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.B psign
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[
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.B options
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]
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[
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.B text
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]
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.SH DESCRIPTION
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.I Psign
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produces a RADIANCE picture of the given
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.I text.
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The output dimensions are determined by the character height, aspect
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ratio, number of lines and line length.
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(Also the character size if text squeezing is used.)\0
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If no
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.I text
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is given, the standard input is read.
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.TP 10n
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.BI -cb " r g b"
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Set the background color to
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.I "r g b"
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The default is white (1 1 1).
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.TP
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.BI -cf " r g b"
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Set the foreground color to
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.I "r g b"
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The default is black (0 0 0).
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.TP
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.BR \-dr
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Text reads to the right (default).
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.TP
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.BR \-du
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Text reads upwards.
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.TP
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.BR \-dl
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Text reads to the left (upside down).
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.TP
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.BR \-dd
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Text reads downwards.
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.TP
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.BI -h \ cheight
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Set the character height to
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.I cheight.
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The default is 32 pixels.
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.TP
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.BI -a \ aspect
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Set the character aspect ratio (height/width) to
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.I aspect.
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The default value is 1.67.
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.TP
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.BI -x \ xsize
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Set the horizontal image size to
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.I xsize.
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Use with
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.I \-y
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option (below) in place of the
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.I \-h
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specification to control output image size directly.
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If the character aspect ratio
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.I (\-a
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option, above) is non-zero, then one of the specified x or y output
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dimensions may be reduced to maintain this ratio.
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If direction is right
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.I (\-dr)
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or left
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.I (\-dl),
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then it is not necessary to give the
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.I \-y
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option, since it can be computed from the character height
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.I (\-h).
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.TP
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.BI -y \ ysize
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Set the vertical image size to
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.I ysize.
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Use with the
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.I \-x
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option (described above).
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If direction is up
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.I (\-du)
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or down
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.I (\-dd),
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then it is not necessary to give the
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.I \-x
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option, since it can be computed from the character height
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.I (\-h).
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.TP
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.BI -s \ spacing
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Set the intercharacter spacing to
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.I spacing.
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The magnitude of this value is multiplied by the character height over
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the aspect ratio (ie. the character width) to compute the desired
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distance between characters in the output.
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The sign of the value, positive or negative, determines how this
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ideal spacing is used in the actual placement of characters.
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If
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.I spacing
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is positive, then the overall width of the line will not be affected,
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nor will indentation of textual elements.
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Thus, the text format will be mostly unaffected.
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However, spacing between characters will reflect their relative size
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for a more natural appearance.
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If
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.I spacing
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is negative, characters will be squeezed together to meet the
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spacing critereon, regardless of how it might affect the format of
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the output.
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The default value for
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.I spacing
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is zero, which is interpreted as uniformly spaced characters.
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.TP
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.BI -f \ fontfile
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Load the font from
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.I fontfile.
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The default font is helvet.fnt
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.SH EXAMPLE
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To put a big "Hi!" on the terminal:
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.IP "" .2i
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psign -h 22 -a 1 -cb 0 0 0 -cf 1 1 1 Hi\\! | ttyimage
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.SH ENVIRONMENT
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RAYPATH path to search for font files
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.SH AUTHOR
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Greg Ward
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.SH BUGS
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The entire bitmap is stored in memory, which can be a problem for
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large and/or high-resolution signs.
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.SH "SEE ALSO"
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getinfo(1), pcompos(1), pfilt(1), ttyimage(1)
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