glRotate(3) glRotate(3)
NAME
glRotated, glRotatef - 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 xy(1-c)-zs xz(1-c)+ys 0
yx(1-c)+zs y^2(1-c)+c yz(1-c)-xs 0
xz(1-c)-ys yz(1-c)+xs 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(3), glMultMatrix(3), glPushMatrix(3), glScale(3),
glTranslate(3)
glRotate(3)
Mac OS X 10.6 - Generated Thu Sep 17 20:20:28 CDT 2009