Add-On Circles and ellipses
Informations
Author:OlivierLicense: FPDF
Description
This script allows to draw circles and ellipses.Circle(float x, float y, float r [, string style])x: abscissa of center.y: ordinate of center.r: radius.style: style of rendering, like for Rect (D, F or FD).
Default value: D.Ellipse(float x, float y, float rx, float ry [, string style])x: abscissa of center.y: ordinate of center.rx: horizontal radius.ry: vertical radius.style: style of rendering, like for Rect (D, F or FD).
Default value: D.
Source
<?php
require('fpdf.php');
class PDF_Ellipse extends FPDF
{
function Circle($x, $y, $r, $style='D')
{
$this->Ellipse($x, $y, $r, $r, $style);
}
function Ellipse($x, $y, $rx, $ry, $style='D')
{
if($style=='F')
$op='f';
elseif($style=='FD' || $style=='DF')
$op='B';
else
$op='S';
$lx=4/3*(M_SQRT2-1)*$rx;
$ly=4/3*(M_SQRT2-1)*$ry;
$k=$this->k;
$h=$this->h;
$this->_out(sprintf('%.2F %.2F m %.2F %.2F %.2F %.2F %.2F %.2F c',
($x+$rx)*$k, ($h-$y)*$k,
($x+$rx)*$k, ($h-($y-$ly))*$k,
($x+$lx)*$k, ($h-($y-$ry))*$k,
$x*$k, ($h-($y-$ry))*$k));
$this->_out(sprintf('%.2F %.2F %.2F %.2F %.2F %.2F c',
($x-$lx)*$k, ($h-($y-$ry))*$k,
($x-$rx)*$k, ($h-($y-$ly))*$k,
($x-$rx)*$k, ($h-$y)*$k));
$this->_out(sprintf('%.2F %.2F %.2F %.2F %.2F %.2F c',
($x-$rx)*$k, ($h-($y+$ly))*$k,
($x-$lx)*$k, ($h-($y+$ry))*$k,
$x*$k, ($h-($y+$ry))*$k));
$this->_out(sprintf('%.2F %.2F %.2F %.2F %.2F %.2F c %s',
($x+$lx)*$k, ($h-($y+$ry))*$k,
($x+$rx)*$k, ($h-($y+$ly))*$k,
($x+$rx)*$k, ($h-$y)*$k,
$op));
}
}
?>Example
This example prints a yellow disc inside an ellipse:<?php
require('ellipse.php');
$pdf=new PDF_Ellipse();
$pdf->AddPage();
$pdf->Ellipse(100, 50, 30, 20);
$pdf->SetFillColor(255, 255, 0);
$pdf->Circle(110, 47, 7, 'F');
$pdf->Output();
?>