cairo_matrix_init(3) [php man page]

CAIRO_MATRIX_INIT(3)							 1						      CAIRO_MATRIX_INIT(3)

CairoMatrix::__construct - Creates a new CairoMatrix object

       Object oriented style (method):

SYNOPSIS

       public CairoMatrix::__construct ([float	$xx = 1.0], [float  $yx = 0.0], [float	$xy = 0.0], [float  $yy = 1.0], [float	$x0 = 0.0], [float
       $y0 = 0.0])

DESCRIPTION

       Procedural style:
       object cairo_matrix_init ([float  $xx = 1.0], [float  $yx = 0.0], [float  $xy = 0.0], [float  $yy = 1.0], [float  $x0 = 0.0], [float  $y0 =
       0.0])

	Returns  new  CairoMatrix object. Matrices are used throughout cairo to convert between different coordinate spaces. Sets matrix to be the
       affine transformation given by xx, yx, xy, yy, x0, y0. The transformation is given by: x_new = xx * x + xy * y + x0; and y_new = yx *  x  +
       yy * y + y0;

PARAMETERS

	      o $xx
		- xx component of the affine transformation

	      o $yx
		- yx component of the affine transformation

	      o $xy
		- xy component of the affine transformation

	      o $yy
		- yy component of the affine transformation

	      o $x0
		- X translation component of the affine transformation

	      o $y0
		- Y translation component of the affine transformation

RETURN VALUES

	Returns a new CairoMatrix object that can be used with surfaces, contexts, and patterns.

EXAMPLES

       Example #1

	      Object oriented style

	      <?php
	      /* Create a new Matrix */
	      $matrix = new CairoMatrix(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
	      ?>

       Example #2

	      Procedural style

	      <?php
	      /* Create a new Matrix */
	      $matrix = cairo_matrix_init(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
	      ?>

SEE ALSO

       CairoMatrix::initIdentity, CairoMatrix::initRotate, CairoMatrix::initScale, CairoMatrix::initTranslate.

PHP Documentation Group 												      CAIRO_MATRIX_INIT(3)

CAIRO_CURVE_TO(3)							 1							 CAIRO_CURVE_TO(3)

CairoContext::curveTo - Adds a curve

       Object oriented style (method):

SYNOPSIS

       public void CairoContext::curveTo (float  $x1, float  $y1, float  $x2, float  $y2, float  $x3, float  $y3)

DESCRIPTION

       Procedural style:
       void cairo_curve_to (CairoContext  $context, float  $x1, float  $y1, float  $x2, float  $y2, float  $x3, float  $y3)

	Adds  a cubic Bezier spline to the path from the current point to position $x3 ,$y3 in user-space coordinates, using $x1, $y1 and $x2, $y2
       as the control points. After this call the current point will be $x3, $y3.

	If there is no current point before the call to CairoContext::curveTo this function will behave as if preceded	by  a  call  to  CairoCon-
       text::moveTo ($x1, $y1).

PARAMETERS

	      o $context
		- A valid CairoContext object created with CairoContext::__construct or cairo_create(3)

	      o $x1
		- First control point in the x axis for the curve

	      o $y1
		- First control point in the y axis for the curve

	      o $x2
		- Second control point in x axis for the curve

	      o $y2
		- Second control point in y axis for the curve

	      o $x3
		- Final point in the x axis for the curve

	      o $y3
		- Final point in the y axis for the curve

RETURN VALUES

	No value is returned.

EXAMPLES

       Example #1

	      Object oriented style

	      <?php
	      $s = new CairoImageSurface(CairoFormat::ARGB32, 100, 100);
	      $c = new CairoContext($s);

	      $c->setSourceRgb(0, 0, 0);

	      $c->paint();

	      $c->moveTo(10, 50);
	      $c->setLineWidth(5);
	      $c->setSourceRgb(.1, 0, 1);
	      $c->curveTo(20, 80, 80, 20, 90, 50);
	      $c->stroke();

	      $s->writeToPng(dirname(__FILE__) . '/curveTo.png');
	      ?>

       Example #2

	      Procedural style

	      <?php

	      $s = cairo_image_surface_create(CAIRO_SURFACE_TYPE_IMAGE, 100, 100);
	      $c = cairo_create($s);

	      cairo_set_source_rgb($c, 0, 0, 0);

	      cairo_paint($c);

	      cairo_move_to($c, 10, 50);
	      cairo_set_line_width($c, 5);
	      cairo_set_source_rgb($c, .1, 0, 1);
	      cairo_curve_to($c, 20, 80, 80, 20, 90, 50);
	      cairo_stroke($c);

	      cairo_surface_write_to_png($s, dirname(__FILE__) . '/curve_to.png');
	      ?>

SEE ALSO

       CairoContext::moveTo.

PHP Documentation Group 													 CAIRO_CURVE_TO(3)