source: sipes/libraries/tcpdf/examples/example_013.php

<?php
//============================================================+
// File name   : example_013.php
// Begin       : 2008-03-04
// Last Update : 2010-08-08
//
// Description : Example 013 for TCPDF class
//               Graphic Transformations
//
// 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: Graphic Transformations
 * @author Nicola Asuni
 * @since 2008-03-04
 */

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 013');
$pdf->SetSubject('TCPDF Tutorial');
$pdf->SetKeywords('TCPDF, PDF, example, test, guide');

// set default header data
$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE.' 013', PDF_HEADER_STRING);

// set header and footer fonts
$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
$pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));

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

//set margins
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
$pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
$pdf->SetFooterMargin(PDF_MARGIN_FOOTER);

//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', 'B', 20);

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

$pdf->Write(0, 'Graphic Transformations', '', 0, 'C', 1, 0, false, false, 0);

// set font
$pdf->SetFont('helvetica', '', 10);

// --- Scaling ---------------------------------------------
$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(50, 70, 40, 10, 'D');
$pdf->Text(50, 66, 'Scale');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
// Start Transformation
$pdf->StartTransform();
// Scale by 150% centered by (50,80) which is the lower left corner of the rectangle
$pdf->ScaleXY(150, 50, 80);
$pdf->Rect(50, 70, 40, 10, 'D');
$pdf->Text(50, 66, 'Scale');
// Stop Transformation
$pdf->StopTransform();

// --- Translation -----------------------------------------
$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(125, 70, 40, 10, 'D');
$pdf->Text(125, 66, 'Translate');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
// Start Transformation
$pdf->StartTransform();
// Translate 7 to the right, 5 to the bottom
$pdf->Translate(7, 5);
$pdf->Rect(125, 70, 40, 10, 'D');
$pdf->Text(125, 66, 'Translate');
// Stop Transformation
$pdf->StopTransform();

// --- Rotation --------------------------------------------
$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(70, 100, 40, 10, 'D');
$pdf->Text(70, 96, 'Rotate');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
// Start Transformation
$pdf->StartTransform();
// Rotate 20 degrees counter-clockwise centered by (70,110) which is the lower left corner of the rectangle
$pdf->Rotate(20, 70, 110);
$pdf->Rect(70, 100, 40, 10, 'D');
$pdf->Text(70, 96, 'Rotate');
// Stop Transformation
$pdf->StopTransform();

// --- Skewing ---------------------------------------------
$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(125, 100, 40, 10, 'D');
$pdf->Text(125, 96, 'Skew');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
// Start Transformation
$pdf->StartTransform();
// skew 30 degrees along the x-axis centered by (125,110) which is the lower left corner of the rectangle
$pdf->SkewX(30, 125, 110);
$pdf->Rect(125, 100, 40, 10, 'D');
$pdf->Text(125, 96, 'Skew');
// Stop Transformation
$pdf->StopTransform();

// --- Mirroring horizontally ------------------------------
$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(70, 130, 40, 10, 'D');
$pdf->Text(70, 126, 'MirrorH');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
// Start Transformation
$pdf->StartTransform();
// mirror horizontally with axis of reflection at x-position 70 (left side of the rectangle)
$pdf->MirrorH(70);
$pdf->Rect(70, 130, 40, 10, 'D');
$pdf->Text(70, 126, 'MirrorH');
// Stop Transformation
$pdf->StopTransform();

// --- Mirroring vertically --------------------------------
$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(125, 130, 40, 10, 'D');
$pdf->Text(125, 126, 'MirrorV');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
// Start Transformation
$pdf->StartTransform();
// mirror vertically with axis of reflection at y-position 140 (bottom side of the rectangle)
$pdf->MirrorV(140);
$pdf->Rect(125, 130, 40, 10, 'D');
$pdf->Text(125, 126, 'MirrorV');
// Stop Transformation
$pdf->StopTransform();

// --- Point reflection ------------------------------------
$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(70, 160, 40, 10, 'D');
$pdf->Text(70, 156, 'MirrorP');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
// Start Transformation
$pdf->StartTransform();
// point reflection at the lower left point of rectangle
$pdf->MirrorP(70,170);
$pdf->Rect(70, 160, 40, 10, 'D');
$pdf->Text(70, 156, 'MirrorP');
// Stop Transformation
$pdf->StopTransform();

// --- Mirroring against a straigth line described by a point (120, 120) and an angle -20°
$angle=-20;
$px=120;
$py=170;

// just for visualisation: the straight line to mirror against

$pdf->SetDrawColor(200);
$pdf->Line($px-1,$py-1,$px+1,$py+1);
$pdf->Line($px-1,$py+1,$px+1,$py-1);
$pdf->StartTransform();
$pdf->Rotate($angle, $px, $py);
$pdf->Line($px-5, $py, $px+60, $py);
$pdf->StopTransform();

$pdf->SetDrawColor(200);
$pdf->SetTextColor(200);
$pdf->Rect(125, 160, 40, 10, 'D');
$pdf->Text(125, 156, 'MirrorL');
$pdf->SetDrawColor(0);
$pdf->SetTextColor(0);
//Start Transformation
$pdf->StartTransform();
//mirror against the straight line
$pdf->MirrorL($angle, $px, $py);
$pdf->Rect(125, 160, 40, 10, 'D');
$pdf->Text(125, 156, 'MirrorL');
//Stop Transformation
$pdf->StopTransform();

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

//Close and output PDF document
$pdf->Output('example_013.pdf', 'I');

//============================================================+
// END OF FILE
//============================================================+