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glrotate(3g) [centos man page]

GLROTATE(3G)							   OpenGL Manual						      GLROTATE(3G)

NAME

       glRotate - multiply the current matrix by a rotation matrix

C SPECIFICATION

       void glRotated(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);

       void glRotatef(GLfloat angle, GLfloat x, GLfloat y, GLfloat 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

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

       x 2  1 - c + c x  y  1 - c - z  s x  z  1 - c + y  s 0 y  x  1 - c + z  s y 2  1 - c + c y  z  1 - c - x  s 0 x	z  1 - c - y  s y  z  1 -
       c + x  s z 2  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 glRotate is called are rotated. Use glPushMatrix() and
       glPopMatrix() 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 glRotate is executed between the execution of glBegin() and the corresponding execution of glEnd().

ASSOCIATED GETS

       glGet() with argument GL_MATRIX_MODE

       glGet() with argument GL_COLOR_MATRIX

       glGet() with argument GL_MODELVIEW_MATRIX

       glGet() with argument GL_PROJECTION_MATRIX

       glGet() with argument GL_TEXTURE_MATRIX

SEE ALSO

       glMatrixMode(), glMultMatrix(), glPushMatrix(), glScale(), glTranslate()

COPYRIGHT

       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014							      GLROTATE(3G)

Check Out this Related Man Page

GLSCALE(3G)							   OpenGL Manual						       GLSCALE(3G)

NAME

       glScale - multiply the current matrix by a general scaling matrix

C SPECIFICATION

       void glScaled(GLdouble x, GLdouble y, GLdouble z);

       void glScalef(GLfloat x, GLfloat y, GLfloat z);

PARAMETERS

       x, y, z
	   Specify scale factors along the x, y, and z axes, respectively.

DESCRIPTION

       glScale produces a nonuniform scaling along the x, y, and z axes. The three parameters indicate the desired scale factor along each of the
       three axes.

       The current matrix (see glMatrixMode()) is multiplied by this scale matrix, and the product replaces the current matrix as if
       glMultMatrix() were called with the following matrix as its argument:

       x 0 0 0 0 y 0 0 0 0 z 0 0 0 0 1

       If the matrix mode is either GL_MODELVIEW or GL_PROJECTION, all objects drawn after glScale is called are scaled.

       Use glPushMatrix() and glPopMatrix() to save and restore the unscaled coordinate system.

NOTES

       If scale factors other than 1 are applied to the modelview matrix and lighting is enabled, lighting often appears wrong. In that case,
       enable automatic normalization of normals by calling glEnable() with the argument GL_NORMALIZE.

ERRORS

       GL_INVALID_OPERATION is generated if glScale is executed between the execution of glBegin() and the corresponding execution of glEnd().

ASSOCIATED GETS

       glGet() with argument GL_MATRIX_MODE

       glGet() with argument GL_COLOR_MATRIX

       glGet() with argument GL_MODELVIEW_MATRIX

       glGet() with argument GL_PROJECTION_MATRIX

       glGet() with argument GL_TEXTURE_MATRIX

SEE ALSO

       glMatrixMode(), glMultMatrix(), glPushMatrix(), glRotate(), glTranslate()

COPYRIGHT

       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014							       GLSCALE(3G)
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