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Text rotations
InformationsAuthor: Pivkin Vladimir
License: Freeware
DescriptionThis extension allows to print rotated and sheared (i.e. distorted like in italic) text.
TextWithDirection(float x, float y, string txt [, string direction])
x: abscissa
y: ordinate
txt: text string
direction: one of the following values (R by default):
- R (Right): Left to Right
- U (Up): Bottom to Top
- D (Down): Top To Bottom
- L (Left): Right to Left
TextWithRotation(float x, float y, string txt, float txt_angle [, float font_angle])
x: abscissa
y: ordinate
txt: text string
txt_angle: angle of the text
font_angle: shear angle (0 by default)
Source
<?php
require('fpdf.php');
class RPDF extends FPDF {
function TextWithDirection($x, $y, $txt, $direction='R')
{
$txt=str_replace(')', '\\)', str_replace('(', '\\(', str_replace('\\', '\\\\', $txt)));
if ($direction=='R')
$s=sprintf('BT %.2f %.2f %.2f %.2f %.2f %.2f Tm (%s) Tj ET', 1, 0, 0, 1, $x*$this->k, ($this->h-$y)*$this->k, $txt);
elseif ($direction=='L')
$s=sprintf('BT %.2f %.2f %.2f %.2f %.2f %.2f Tm (%s) Tj ET', -1, 0, 0, -1, $x*$this->k, ($this->h-$y)*$this->k, $txt);
elseif ($direction=='U')
$s=sprintf('BT %.2f %.2f %.2f %.2f %.2f %.2f Tm (%s) Tj ET', 0, 1, -1, 0, $x*$this->k, ($this->h-$y)*$this->k, $txt);
elseif ($direction=='D')
$s=sprintf('BT %.2f %.2f %.2f %.2f %.2f %.2f Tm (%s) Tj ET', 0, -1, 1, 0, $x*$this->k, ($this->h-$y)*$this->k, $txt);
else
$s=sprintf('BT %.2f %.2f Td (%s) Tj ET', $x*$this->k, ($this->h-$y)*$this->k, $txt);
if ($this->ColorFlag)
$s='q '.$this->TextColor.' '.$s.' Q';
$this->_out($s);
}
function TextWithRotation($x, $y, $txt, $txt_angle, $font_angle=0)
{
$txt=str_replace(')', '\\)', str_replace('(', '\\(', str_replace('\\', '\\\\', $txt)));
$font_angle+=90+$txt_angle;
$txt_angle*=M_PI/180;
$font_angle*=M_PI/180;
$txt_dx=cos($txt_angle);
$txt_dy=sin($txt_angle);
$font_dx=cos($font_angle);
$font_dy=sin($font_angle);
$s=sprintf('BT %.2f %.2f %.2f %.2f %.2f %.2f Tm (%s) Tj ET',
$txt_dx, $txt_dy, $font_dx, $font_dy,
$x*$this->k, ($this->h-$y)*$this->k, $txt);
if ($this->ColorFlag)
$s='q '.$this->TextColor.' '.$s.' Q';
$this->_out($s);
}
}
?>
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Example
<?php
define('FPDF_FONTPATH', 'font/');
require('rpdf.php');
$pdf=new RPDF();
$pdf->Open();
$pdf->AddPage();
$pdf->SetFont('Arial', '', 40);
$pdf->TextWithRotation(50, 65, 'Hello', 45, -45);
$pdf->SetFontSize(30);
$pdf->TextWithDirection(110, 50, 'world!', 'L');
$pdf->TextWithDirection(110, 50, 'world!', 'U');
$pdf->TextWithDirection(110, 50, 'world!', 'R');
$pdf->TextWithDirection(110, 50, 'world!', 'D');
$pdf->Output();
?>
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View the result here.
DownloadZIP | TGZ
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