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genpyr (1)
NAME
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genpyr - generate a RADIANCE description of a square based pyramid |
SYNOPSIS
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genpyr mat name s show_type xsize ysize zsize [opt]
[taper angle] |
DESCRIPTION
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Genpyr produces a RADIANCE scene description of a
square based pyramid. This function allows to create almost
any square based pyramid represented as a surfaces or as
wireframe. The user has to define the lenght, width and
height of the pyramid in order to get a "basic
centered" pyramid. Although he can also define the
"justification" of the upper vertex, by saying,
for instance, TL for top-left location. Also he can define
the tapper angle of the inclined surfaces. In this case he
can get a truncated pyramid. |
OPTIONS
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The options are for the show_type are: |
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-i --> normal pointing inside, |
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-o --> normal pointing outside, |
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radius : When show_type is -w (wire frame) this option must
get a value greater than 0. In show_type -i or -o (surface)
radius value is irrelevant, however you must give any
(0). |
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The options are for the placement of the top
base: |
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tl, tc, tr: top left, center, right |
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bl, bc, br: bottom left, center, right |
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cl, cc, cr: center left, center, right |
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The taper angle allows create tapered pyramids. The value
must: lie between 0 and 90 (0 --> vertical, 90 -->
horizontal. |
EXAMPLE
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To create a wire framed pyramid of 8 X units and 8 Y units
with a height of 6 Z units centered at the top, and with a
tapper angle of 30 degrees (the radius of each pole is 0.2
units), write: |
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genpyr red_plastic pyr1 s -w 0.2 8 8 6 cc 30 |
AUTHOR
BUGS
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Remember to specify the "s" parameter after the
name. It is for future development of this finction. The
data input must be entered in the order specifyed in the
synopsis. |
SEE ALSO
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