fglrotate man page on IRIX

Man page or keyword search:  
man Server   31559 pages
apropos Keyword Search (all sections)
Output format
IRIX logo
[printable version]



fglRotate(3G)		       OpenGL Reference			 fglRotate(3G)

NAME
     fglRotated, fglRotatef - multiply the current matrix by a rotation matrix

FORTRAN SPECIFICATION
     SUBROUTINE fglRotated( REAL*4 angle,
			    REAL*4 x,
			    REAL*4 y,
			    REAL*4 z )
     SUBROUTINE fglRotatef( REAL*4 angle,
			    REAL*4 x,
			    REAL*4 y,
			    REAL*4 z )

PARAMETERS
     angle  Specifies the angle of rotation, in degrees.

     x, y, z
	    Specify the x, y, and z coordinates of a vector, respectively.

DESCRIPTION
     fglRotate produces a rotation of angle degrees around the vector (x,y,z).
     The current matrix (see fglMatrixMode) is multiplied by a rotation matrix
     with the product replacing the current matrix, as if fglMultMatrix were
     called with the following matrix as its argument:

	       (						   )

	       |  2						   |
		 x (1-c) + c	 xy(1-c) - zs	 xz(1-c) + ys	0
	       |						   |

	       |		  2				   |
		 yx(1-c) + zs	 y (1-c) + c	 yz(1-c) - xs	0
	       |						   |

	       |				  2		   |
		 xz(1-c) - ys	 yz(1-c) + xs	 z (1-c) + c	0
	       |						   |

	       (       0	       0	       0	1  )

     Where c = cos(angle), s = sin(angle), and ||( x,y,z )|| = 1 (if not, the
     GL will normalize this vector).

     If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects
     drawn after fglRotate is called are rotated.  Use fglPushMatrix and
     fglPopMatrix to save and restore the unrotated coordinate system.

NOTES
     This rotation follows the right-hand rule, so if the vector (x,y,z)
     points toward the user, the rotation will be counterclockwise.

ERRORS
     GL_INVALID_OPERATION is generated if fglRotate is executed between the
     execution of fglBegin and the corresponding execution of fglEnd.

									Page 1

fglRotate(3G)		       OpenGL Reference			 fglRotate(3G)

ASSOCIATED GETS
     fglGet with argument GL_MATRIX_MODE
     fglGet with argument GL_COLOR_MATRIX
     fglGet with argument GL_MODELVIEW_MATRIX
     fglGet with argument GL_PROJECTION_MATRIX
     fglGet with argument GL_TEXTURE_MATRIX

SEE ALSO
     fglMatrixMode, fglMultMatrix, fglPushMatrix, fglScale, fglTranslate

									Page 2

[top]

List of man pages available for IRIX

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net