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- // Copyright (C) 1997-2002 Alias|Wavefront,
- // a division of Silicon Graphics Limited.
- //
- // The information in this file is provided for the exclusive use of the
- // licensees of Alias|Wavefront. Such users have the right to use, modify,
- // and incorporate this code into other products for purposes authorized
- // by the Alias|Wavefront license agreement, without fee.
- //
- // ALIAS|WAVEFRONT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- // INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- // EVENT SHALL ALIAS|WAVEFRONT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- // CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- // DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- // TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- // PERFORMANCE OF THIS SOFTWARE.
- //
- global proc string spiralSurface( float $ht, float $radius, float $numRounds,
- float $tubeRadius)
- //
- // Description:
- // This proc creates a spiral centred about the origin, with a specific
- // height, radius and number of rounds/turns/cycles. Then it extrudes
- // a circle of "tubeRadius" along it.
- {
- string $path = `spiral $ht $radius $numRounds`;
- string $circle[] = `circle -ch off -r $tubeRadius`;
-
- string $result[] = `extrude -n "spiral" -ch off -rn false -po 0 -et 2 -ucp 1 -fpt 1 -upn 1 $circle[0] $path`;
-
- delete $path $circle[0];
- return $result[0];
- }
-