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diff --git a/nx-X11/extras/ogl-sample/main/doc/man/manglu/standard/begintrim.gl b/nx-X11/extras/ogl-sample/main/doc/man/manglu/standard/begintrim.gl deleted file mode 100644 index a9df90666..000000000 --- a/nx-X11/extras/ogl-sample/main/doc/man/manglu/standard/begintrim.gl +++ /dev/null @@ -1,120 +0,0 @@ -_C_ License Applicability. Except to the extent portions of this file are -_C_ made subject to an alternative license as permitted in the SGI Free -_C_ Software License B, Version 1.1 (the "License"), the contents of this -_C_ file are subject only to the provisions of the License. You may not use -_C_ this file except in compliance with the License. You may obtain a copy -_C_ of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -_C_ Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -_C_ -_C_ http://oss.sgi.com/projects/FreeB -_C_ -_C_ Note that, as provided in the License, the Software is distributed on an -_C_ "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -_C_ DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -_C_ CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -_C_ PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -_C_ -_C_ Original Code. The Original Code is: OpenGL Sample Implementation, -_C_ Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -_C_ Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -_C_ Copyright in any portions created by third parties is as indicated -_C_ elsewhere herein. All Rights Reserved. -_C_ -_C_ Additional Notice Provisions: The application programming interfaces -_C_ established by SGI in conjunction with the Original Code are The -_C_ OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -_C_ April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -_C_ 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -_C_ Window System(R) (Version 1.3), released October 19, 1998. This software -_C_ was created using the OpenGL(R) version 1.2.1 Sample Implementation -_C_ published by SGI, but has not been independently verified as being -_C_ compliant with the OpenGL(R) version 1.2.1 Specification. -_C_ -_C_ $Date: 2004/03/14 08:29:09 $ $Revision: 1.1.1.4 $ -_C_ The first character in this file must be an '_'! -_C_ Anything on a line after _C_ is ignored -_define(_filters,eqn)_C_ -_C_ eqn is automatically replaced with neqn for nroff -_header(BeginTrim, delimit a NURBS trimming loop definition) -_names(BeginTrim) -_names(EndTrim,,noheader) -.EQ -delim $$ -.EN -.SH PARAMETERS -_phead(_param1) -Specifies the NURBS object (created with _cmnd(NewNurbsRenderer)). -.SH DESCRIPTION -Use _cmnd(BeginTrim) to mark the beginning of a -trimming loop, and _cmnd(EndTrim) to mark the end -of a trimming loop. A trimming loop is -a set of oriented curve segments (forming a closed curve) that -define boundaries of a NURBS surface. You include these -trimming loops in the definition of a NURBS -surface, between calls to _cmnd(BeginSurface) and _cmnd(EndSurface). -.P -The definition for a NURBS surface can contain many -trimming loops. For example, if you wrote a definition -for a NURBS surface that resembled a rectangle with -a hole punched out, the definition would contain two -trimming loops. One loop would define the outer edge -of the rectangle; the other would define -the hole punched out of the rectangle. The definitions -of each of these trimming loops would be bracketed by a -_cmnd(BeginTrim)/_cmnd(EndTrim) pair. -.P -The definition of a single closed trimming loop can consist -of multiple curve segments, each described as a piecewise -linear curve (see _cmnd(PwlCurve)) or as a single NURBS -curve (see _cmnd(NurbsCurve)), or as a combination of -both in any order. The only library calls that can -appear in a trimming loop definition (between the calls -to _cmnd(BeginTrim) and _cmnd(EndTrim)) are -_cmnd(PwlCurve) and _cmnd(NurbsCurve). -.P -The area of the NURBS surface that is displayed is the -region in the domain to the left of the trimming curve -as the curve parameter increases. Thus, the retained -region of the NURBS surface is inside a -counterclockwise trimming loop and outside a clockwise -trimming loop. For the rectangle mentioned earlier, -the trimming loop for the outer edge of the rectangle runs -counterclockwise, while the trimming loop for the punched-out hole -runs clockwise. -.P -If you use more than one curve to define a single trimming -loop, the curve segments must form a closed loop (that is, -the endpoint of each curve must be the starting point of the -next curve, and the endpoint of the final curve must -be the starting point of the first curve). If the -endpoints of the curve are sufficiently close together -but not exactly coincident, they will be coerced to match. -If the endpoints are not sufficiently close, an error results -(see _cmnd(NurbsCallback)). -.P -If a trimming loop definition contains multiple curves, -the direction of the curves must be consistent (that is, the -inside must be to the left of all of the curves). Nested -trimming loops are legal as long as the curve orientations -alternate correctly. -If trimming curves are self-intersecting, -or intersect one another, an error results. -.P -If no trimming information is given -for a NURBS surface, the entire surface is drawn. -.SH EXAMPLE -This code fragment defines a trimming loop that consists of one -piecewise linear curve, and two NURBS curves: -.sp -.Ex -gluBeginTrim(nobj); - gluPwlCurve(..., GLU_MAP1_TRIM_2); - gluNurbsCurve(..., GLU_MAP1_TRIM_2); - gluNurbsCurve(..., GLU_MAP1_TRIM_3); -gluEndTrim(nobj); -.Ee -.SH SEE ALSO -_cmnd(BeginSurface), _cmnd(NewNurbsRenderer), _cmnd(NurbsCallback), -_cmnd(NurbsCurve), _cmnd(PwlCurve) - - |