glRotate
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 computes a matrix that performs a counterclockwise
rotation of angle degrees about the vector from the origin through
the point (x, y, z).
The current matrix (see
glMatrixMode)
is multiplied by this rotation matrix, with the product replacing the
current matrix. That is, if M is the current matrix and R is the
rotation matrix, then M is replaced with M * R.
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.
ERRORS
GL_INVALID_OPERATION is generated if glRotate is called between
a call to glBegin and the corresponding
call to glEnd.
ASSOCIATED GETS
glGet with argument
GL_MATRIX_MODE
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
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© 1995 Uwe Behrens. All rights reserved.