man/man1/genprism.1

.\" RCSid "$Id: genprism.1,v 1.2 2003/12/09 15:59:06 greg Exp $"
.TH GENPRISM 1 3/19/96 RADIANCE
.SH NAME
genprism - generate a RADIANCE description of a prism
.SH SYNOPSIS
.B "genprism mat name"
{
.B -
|
.B vfile
|
.B "N v1 v2 .. vN"
}
[
.B "\-l lvect"
][
.B "\-r radius"
][
.B \-c
][
.B \-e
]
.SH DESCRIPTION
.I Genprism
produces a RADIANCE scene description of a prism, or extruded polygon.
The polygon to extrude lies in the z==0 plane, and
is given as a list of (x,y) pairs on the
standard input (-), or from the file
.I vfile,
or on the command line preceded by the number of vertices,
.I N.
The order of the vertices and the extrusion vector
.I lvect
(default (0,0,1)) determine the surface orientations.
The surfaces that make up the prism will be modified by
.I mat
and their identifiers will begin with
.I name.
The
.I \-r
option may be used to round the corners of the object using spheres
and cylinders.
The
.I \-c
option inhibits generation of a face connecting the last vertex to the first.
The
.I \-e
option inhibits generation of the end polygons.
.SH EXAMPLE
To produce a equilateral triangular prism:
.IP "" .2i
genprism clear_plastic prism 3 0 0 .5 .866 1 0
.SH AUTHOR
Greg Ward
.SH BUGS
The rounding option only works for opaque prisms with outward facing
normals.
If the normals face inward, the appearance will be bizarre.
.SH "SEE ALSO"
genbox(1), genrev(1), gensurf(1), genworm(1), rpict(1), rvu(1), xform(1)
Revision:	1.3
Committed:	Thu Jan 1 19:31:44 2004 UTC (21 years, 10 months ago) by greg
Branch:	MAIN
CVS Tags:	rad5R4, rad5R2, rad5R3, rad5R0, rad5R1, rad4R2, rad3R7P2, rad3R7P1, rad6R0, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad4R2P2, HEAD
Changes since 1.2:	+2 -2 lines
Log Message:	Renamed rview, lam, calc, and neat to rvu, rlam, icalc, and neaten
#	User	Rev	Content
1	greg	1.3	.\" RCSid "$Id: genprism.1,v 1.2 2003/12/09 15:59:06 greg Exp $"
2	greg	1.1	.TH GENPRISM 1 3/19/96 RADIANCE
3			.SH NAME
4			genprism - generate a RADIANCE description of a prism
5			.SH SYNOPSIS
6			.B "genprism mat name"
7			{
8			.B -
9			\|
10			.B vfile
11			\|
12			.B "N v1 v2 .. vN"
13			}
14			[
15			.B "\-l lvect"
16			][
17			.B "\-r radius"
18			][
19			.B \-c
20			][
21			.B \-e
22			]
23			.SH DESCRIPTION
24			.I Genprism
25			produces a RADIANCE scene description of a prism, or extruded polygon.
26			The polygon to extrude lies in the z==0 plane, and
27			is given as a list of (x,y) pairs on the
28			standard input (-), or from the file
29			.I vfile,
30			or on the command line preceded by the number of vertices,
31			.I N.
32			The order of the vertices and the extrusion vector
33			.I lvect
34			(default (0,0,1)) determine the surface orientations.
35			The surfaces that make up the prism will be modified by
36			.I mat
37			and their identifiers will begin with
38			.I name.
39			The
40			.I \-r
41			option may be used to round the corners of the object using spheres
42			and cylinders.
43			The
44			.I \-c
45			option inhibits generation of a face connecting the last vertex to the first.
46			The
47			.I \-e
48			option inhibits generation of the end polygons.
49			.SH EXAMPLE
50			To produce a equilateral triangular prism:
51			.IP "" .2i
52			genprism clear_plastic prism 3 0 0 .5 .866 1 0
53			.SH AUTHOR
54			Greg Ward
55			.SH BUGS
56			The rounding option only works for opaque prisms with outward facing
57			normals.
58			If the normals face inward, the appearance will be bizarre.
59			.SH "SEE ALSO"
60	greg	1.3	genbox(1), genrev(1), gensurf(1), genworm(1), rpict(1), rvu(1), xform(1)