cairo_matrix_scale(3) [php man page]

CAIRO_MATRIX_SCALE(3)							 1						     CAIRO_MATRIX_SCALE(3)

CairoMatrix::scale - Applies scaling to a matrix

       Object oriented style (method):

SYNOPSIS

       public void CairoMatrix::scale (float  $sx, float  $sy)

DESCRIPTION

       Procedural style:
       void cairo_matrix_scale (CairoContext  $context, float  $sx, float  $sy)

	Applies  scaling  by sx, sy to the transformation in the matrix. The effect of the new transformation is to first scale the coordinates by
       sx and sy, then apply the original transformation to the coordinates.

PARAMETERS

	      o $matrix
		- Procedural only - CairoMatrix instance

	      o $sx
		- scale factor in the X direction

	      o $sy
		- scale factor in the Y direction

EXAMPLES

       Example #1

	      Object oriented style

	      <?php
	      /* Apply scaling to a matrix */
	      $matrix = new CairoMatrix(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
	      $matrix->scale(0.2, 2.0);
	      ?>

       Example #2

	      Procedural style

	      <?php
	      /* Apply scaling to a matrix */
	      $matrix = cairo_matrix_init(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
	      cairo_matrix_scale($matrix, 0.2, 2.0);
	      ?>

SEE ALSO

       CairoMatrix::initScale.

PHP Documentation Group 												     CAIRO_MATRIX_SCALE(3)

GLSCALE(3G)															       GLSCALE(3G)

NAME

       glScaled, glScalef - 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  glScale  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(3G), glMultMatrix(3G), glPushMatrix(3G), glRotate(3G), glTranslate(3G)

																       GLSCALE(3G)