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diff --git a/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/mapgrid.gl b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/mapgrid.gl new file mode 100644 index 000000000..fe4e4c2e2 --- /dev/null +++ b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/mapgrid.gl @@ -0,0 +1,125 @@ +_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(MapGrid,define a one- or two-dimensional mesh) +_names(MapGrid,[12]u*[df]) +.EQ +delim $$ +.EN +.SH PARAMETERS +_phead(_param1) +Specifies the number of partitions in the grid range interval +[_param2, _param3]. +Must be positive. +_phead(_param2 _param3) +Specify the mappings for integer grid domain values $i~=~0$ and $i~=~_eqnparam1$. +_phead(_param4) +Specifies the number of partitions in the grid range interval +[_param5, _param6] +.br +(_cmnd(MapGrid2) only). +_phead(_param5 _param6) +Specify the mappings for integer grid domain values $j~=~0$ and $j~=~_eqnparam4$ +.br +(_cmnd(MapGrid2) only). +.SH DESCRIPTION +_cmnd and _cmnd(EvalMesh) are used together to efficiently +generate and evaluate a series of evenly-spaced map domain values. +_cmnd(EvalMesh) steps through the integer domain +of a one- or two-dimensional grid, +whose range is the domain of the evaluation maps specified by +_cmnd(Map1) and _cmnd(Map2). +.P +_cmnd(MapGrid1) and _cmnd(MapGrid2) specify the linear grid mappings +between the $i$ +(or $i$ and $j$) +integer grid coordinates, +to the $u$ +(or $u$ and $v$) +floating-point evaluation map coordinates. +See _cmnd(Map1) and _cmnd(Map2) for details of how $u$ and $v$ coordinates +are evaluated. +.P +_cmnd(MapGrid1) specifies a single linear mapping +such that integer grid coordinate 0 maps exactly to _param2, +and integer grid coordinate _param1 maps exactly to _param3. +All other integer grid coordinates $i$ are mapped so that +.sp +.ce +.EQ +u ~=~ i (_eqnparam3 - _eqnparam2) / _eqnparam1 ~+~ _eqnparam2 +.EN +.sp +_cmnd(MapGrid2) specifies two such linear mappings. +One maps integer grid coordinate $i~=~0$ exactly to _param2, +and integer grid coordinate $i~=~_eqnparam1$ exactly to _param3. +The other maps integer grid coordinate $j~=~0$ exactly to _param5, +and integer grid coordinate $j~=~_eqnparam4$ exactly to _param6. +Other integer grid coordinates $i$ and $j$ are mapped such that +.P +.ce +.EQ +u ~=~ i (_eqnparam3 - _eqnparam2) / _eqnparam1 ~+~ _eqnparam2 +.EN +.P +.ce +.EQ +v ~=~ j (_eqnparam6 - _eqnparam5) / _eqnparam4 ~+~ _eqnparam5 +.EN +.P +The mappings specified by _cmnd are used identically by +_cmnd(EvalMesh) and _cmnd(EvalPoint). +.SH ERRORS +_const(INVALID_VALUE) is generated if either _param1 or _param4 is not +positive. +.P +_const(INVALID_OPERATION) is generated if _cmnd +is executed between the execution of _cmnd(Begin) +and the corresponding execution of _cmnd(End). +.SH ASSOCIATED GETS +_cmnd(Get) with argument _const(MAP1_GRID_DOMAIN) +.br +_cmnd(Get) with argument _const(MAP2_GRID_DOMAIN) +.br +_cmnd(Get) with argument _const(MAP1_GRID_SEGMENTS) +.br +_cmnd(Get) with argument _const(MAP2_GRID_SEGMENTS) +.SH SEE ALSO +_cmnd(EvalCoord), +_cmnd(EvalMesh), +_cmnd(EvalPoint), +_cmnd(Map1), +_cmnd(Map2) |