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.\" RCSid "$Id: genclock.1,v 1.3 2004/01/01 19:31:44 greg Exp $"
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.TH GENCLOCK 1 4/9/97 RADIANCE
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.SH NAME
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genclock - generate a RADIANCE description of a clock
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.SH SYNOPSIS
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.B genclock
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[
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.B "\-f face_mat"
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][
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.B "\-c case_mat"
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][
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.B "\-n name"
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]
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{
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.B HH:MM
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|
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.B hours
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}
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.SH DESCRIPTION
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.I Genclock
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produces a RADIANCE scene description of an analog clock showing the
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given hour.
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The hour may either be given as
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.I HH:MM
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or decimal
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.I hours.
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.PP
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The face of the clock will have a radius of 1.0 units, with the
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surrounding case 1.1 (2.2 diameter).
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The origin is at the center of the back, and the face looks in the
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positive X-direction.
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The 12 o'clock direction corresponds to the positive Z-axis.
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(The Y-axis direction is 3 o'clock.)\0
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The
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.I xform(1)
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command may be used to resize and relocate the clock as desired.
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.PP
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Normally,
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.I genclock
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produces all of the materials necessary for its own description, but
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options are provided to specify alternate materials for the face and
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case.
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The numbers on the face are in dark lettering, so the face material
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must be relatively light for them to show up well.
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By default, the clock is given the name "clock," but this may be
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changed with the
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.I \-n
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option.
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.SH EXAMPLE
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To produce a 12 inch diameter clock showing 10:35
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and hang it at 60 on a wall facing the Y-direction at Y=10:
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.IP "" .2i
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genclock 10:35 | xform \-s 6 \-rz 90 \-t 20 10 60
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.SH AUTHOR
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Greg Ward
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.SH "SEE ALSO"
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genbox(1), genrev(1), gensurf(1), genworm(1), rpict(1), rvu(1), xform(1)
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