<?php
//============================================================+
// File name   : example_030.php
// Begin       : 2008-06-09
// Last Update : 2009-09-30
// 
// Description : Example 030 for TCPDF class
//               Colour gradients
// 
// Author: Nicola Asuni
// 
// (c) Copyright:
//               Nicola Asuni
//               Tecnick.com s.r.l.
//               Via Della Pace, 11
//               09044 Quartucciu (CA)
//               ITALY
//               www.tecnick.com
//               info@tecnick.com
//============================================================+

/**
 * Creates an example PDF TEST document using TCPDF
 * @package com.tecnick.tcpdf
 * @abstract TCPDF - Example: Colour gradients
 * @author Nicola Asuni
 * @copyright 2004-2009 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
 * @link http://tcpdf.org
 * @license http://www.gnu.org/copyleft/lesser.html LGPL
 * @since 2008-06-09
 */

require_once('../config/lang/eng.php');
require_once('../tcpdf.php');

// create new PDF document
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false); 

// set document information
$pdf->SetCreator(PDF_CREATOR);
$pdf->SetAuthor('Nicola Asuni');
$pdf->SetTitle('TCPDF Example 030');
$pdf->SetSubject('TCPDF Tutorial');
$pdf->SetKeywords('TCPDF, PDF, example, test, guide');

// disable header and footer
$pdf->setPrintHeader(false);
$pdf->setPrintFooter(false);

// set default monospaced font
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);

//set margins
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);

//set auto page breaks
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);

//set image scale factor
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO); 

//set some language-dependent strings
$pdf->setLanguageArray($l); 

// ---------------------------------------------------------

// set font
$pdf->SetFont('helvetica', '', 14);

// add a page
$pdf->AddPage();

//first page

//set colors for gradients (r,g,b) or (grey 0-255)
$red = array(255, 0, 0);
$blue = array(0, 0, 200);
$yellow = array(255, 255, 0);
$green = array(0, 255, 0);
$white = array(255);
$black = array(0);

//set the coordinates x1,y1,x2,y2 of the gradient (see linear_gradient_coords.jpg)
$coords = array(0, 0, 1, 0);

//paint a linear gradient
$pdf->LinearGradient(20, 25, 80, 80, $red, $blue, $coords);

//set the coordinates fx,fy,cx,cy,r of the gradient (see radial_gradient_coords.jpg)
$coords = array(0.5, 0.5, 1, 1, 1.2);

//paint a radial gradient
$pdf->RadialGradient(110, 25, 80, 80, $white, $black, $coords);

//paint a coons patch mesh with default coordinates
$pdf->CoonsPatchMesh(20, 115, 80, 80, $yellow, $blue, $green, $red);

//set the coordinates for the cubic Bézier points x1,y1 ... x12, y12 of the patch (see coons_patch_mesh_coords.jpg)
$coords = array(
	0.00,0.00, 0.33,0.20,             //lower left
	0.67,0.00, 1.00,0.00, 0.80,0.33,  //lower right
	0.80,0.67, 1.00,1.00, 0.67,0.80,  //upper right
	0.33,1.00, 0.00,1.00, 0.20,0.67,  //upper left
	0.00,0.33);                       //lower left
$coords_min = 0;   //minimum value of the coordinates
$coords_max = 1;   //maximum value of the coordinates

//paint a coons patch gradient with the above coordinates
$pdf->CoonsPatchMesh(110, 115, 80, 80, $yellow, $blue, $green, $red, $coords, $coords_min, $coords_max);

//second page
$pdf->AddPage();

//first patch: f = 0
$patch_array[0]['f'] = 0;
$patch_array[0]['points'] = array(
	0.00,0.00, 0.33,0.00,
	0.67,0.00, 1.00,0.00, 1.00,0.33,
	0.8,0.67, 1.00,1.00, 0.67,0.8,
	0.33,1.80, 0.00,1.00, 0.00,0.67,
	0.00,0.33);
$patch_array[0]['colors'][0] = array('r' => 255, 'g' => 255, 'b' => 0);
$patch_array[0]['colors'][1] = array('r' => 0, 'g' => 0, 'b' => 255);
$patch_array[0]['colors'][2] = array('r' => 0, 'g' => 255,'b' => 0);
$patch_array[0]['colors'][3] = array('r' => 255, 'g' => 0,'b' => 0);

//second patch - above the other: f = 2
$patch_array[1]['f'] = 2;
$patch_array[1]['points'] = array(
	0.00,1.33,
	0.00,1.67, 0.00,2.00, 0.33,2.00,
	0.67,2.00, 1.00,2.00, 1.00,1.67,
	1.5,1.33);
$patch_array[1]['colors'][0]=array('r' => 0, 'g' => 0, 'b' => 0);
$patch_array[1]['colors'][1]=array('r' => 255, 'g' => 0, 'b' => 255);

//third patch - right of the above: f = 3
$patch_array[2]['f'] = 3;
$patch_array[2]['points'] = array(
	1.33,0.80,
	1.67,1.50, 2.00,1.00, 2.00,1.33,
	2.00,1.67, 2.00,2.00, 1.67,2.00,
	1.33,2.00);
$patch_array[2]['colors'][0] = array('r' => 0, 'g' => 255, 'b' => 255);
$patch_array[2]['colors'][1] = array('r' => 0, 'g' => 0, 'b' => 0);

//fourth patch - below the above, which means left(?) of the above: f = 1
$patch_array[3]['f'] = 1;
$patch_array[3]['points'] = array(
	2.00,0.67,
	2.00,0.33, 2.00,0.00, 1.67,0.00,
	1.33,0.00, 1.00,0.00, 1.00,0.33,
	0.8,0.67);
$patch_array[3]['colors'][0] = array('r' => 0, 'g' => 0, 'b' => 0);
$patch_array[3]['colors'][1] = array('r' => 0, 'g' => 0, 'b' => 255);

$coords_min = 0;
$coords_max = 2;

$pdf->CoonsPatchMesh(10, 25, 190, 200, '', '', '', '', $patch_array, $coords_min, $coords_max);

// ---------------------------------------------------------

//Close and output PDF document
$pdf->Output('example_030.pdf', 'I');

//============================================================+
// END OF FILE                                                 
//============================================================+
?>
