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pdf_circle
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pdf_circle

Name

pdf_circle — Draws a circle

Synopsis

bool pdf_circle(pdf, x, y, radius); resource pdf: PDF object identifier double x: Center x coordinate double y: Center y coordinate double radius: Circle radius

Returns

Always TRUE

Description

Draws a circle from center point x , y with raduis radius . Don't forget to stroke the object with pdf_stroke() . The circle can optionally be filled with functions such as pdf_fill_stroke() and pdf_fill() .

Version

Since versions 3.0.6 and 4.0

Example

Example 918. Draw concentric circles

<?php

// create a new document
$pdf = pdf_new();
pdf_open_file($pdf);
pdf_begin_page($pdf, 500, 700);

// create a set of concentric circles
for ($i=1; $i<10; $i++) {
   pdf_circle($pdf, 250, 350, $i*10);
   pdf_stroke($pdf);    
}   

pdf_end_page($pdf);
pdf_close($pdf);
    
// display the PDF document
$data = pdf_get_buffer($pdf);
header("Content-type: application/pdf");
header("Content-disposition: inline; filename=test.pdf");
header("Content-length: " . strlen($data));
echo $data;
?>

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PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.