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author | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
commit | f4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch) | |
tree | 2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/getmap.gl | |
parent | a840692edc9c6d19cd7c057f68e39c7d95eb767d (diff) | |
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz
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Diffstat (limited to 'nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/getmap.gl')
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1 files changed, 132 insertions, 0 deletions
diff --git a/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/getmap.gl b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/getmap.gl new file mode 100644 index 000000000..ed322f092 --- /dev/null +++ b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/getmap.gl @@ -0,0 +1,132 @@ +_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_ The first character in this file must be an '_'! +_C_ Anything on a line after _C_ is ignored +_define(_filters,tbl|eqn)_C_ +_C_ eqn is automatically replaced with neqn for nroff +_header(GetMap,return evaluator parameters) +_names(GetMap,[dfi]v) +.EQ +delim $$ +.EN +.SH PARAMETERS +_phead(_param1) +Specifies the symbolic name of a map. +Accepted values are +_const(MAP1_COLOR_4), +_const(MAP1_INDEX), +_const(MAP1_NORMAL), +_const(MAP1_TEXTURE_COORD_1), +_const(MAP1_TEXTURE_COORD_2), +_const(MAP1_TEXTURE_COORD_3), +_const(MAP1_TEXTURE_COORD_4), +_const(MAP1_VERTEX_3), +_const(MAP1_VERTEX_4), +_const(MAP2_COLOR_4), +_const(MAP2_INDEX), +_const(MAP2_NORMAL), +_const(MAP2_TEXTURE_COORD_1), +_const(MAP2_TEXTURE_COORD_2), +_const(MAP2_TEXTURE_COORD_3), +_const(MAP2_TEXTURE_COORD_4), +_const(MAP2_VERTEX_3), and +_const(MAP2_VERTEX_4). +_phead(_param2) +Specifies which parameter to return. +Symbolic names +_const(COEFF), +_const(ORDER), and +_const(DOMAIN) are accepted. +_phead(_param3) +Returns the requested data. +.SH DESCRIPTION +_cmnd(Map1) and _cmnd(Map2) define evaluators. +_cmnd returns evaluator parameters. +_param1 chooses a map, +_param2 selects a specific parameter, +and _param3 points to storage where the values will be returned. +.P +The acceptable values for the _param1 parameter are described +in the _cmnd(Map1) and _cmnd(Map2) reference pages. +.P +_param2 can assume the following values: +.TP 15 +_const(COEFF) +_param3 returns the control points for the evaluator function. +One-dimensional evaluators return $order$ control points, +and two-dimensional evaluators return $uorder ~times~ vorder$ control points. +Each control point consists of one, two, three, or four integer, +single-precision floating-point, +or double-precision floating-point values, +depending on the type of the evaluator. +The GL returns two-dimensional control points in row-major order, +incrementing the $uorder$ index quickly +and the $vorder$ index after each row. +Integer values, +when requested, +are computed by rounding the internal floating-point values to the +nearest integer values. +.TP +_const(ORDER) +_param3 returns the order of the evaluator function. +One-dimensional evaluators return a single value, +$order$. The initial value is 1. +Two-dimensional evaluators return two values, +$uorder$ and $vorder$. The initial value is 1,1. +.TP +_const(DOMAIN) +_param3 returns the linear $u$ and $v$ mapping parameters. +One-dimensional evaluators return two values, +$u1$ and $u2$, +as specified by _cmnd(Map1). +Two-dimensional evaluators return four values +($u1$, $u2$, $v1$, and $v2$) +as specified by _cmnd(Map2). +Integer values, +when requested, +are computed by rounding the internal floating-point values to the +nearest integer values. +.SH NOTES +If an error is generated, +no change is made to the contents of _param3. +.SH ERRORS +_const(INVALID_ENUM) is generated if either _param1 or _param2 is not +an accepted value. +.P +_const(INVALID_OPERATION) is generated if _cmnd +is executed between the execution of _cmnd(Begin) +and the corresponding execution of _cmnd(End). +.SH SEE ALSO +_cmnd(EvalCoord), +_cmnd(Map1), +_cmnd(Map2) |