Manual

This package provides a common interface to image drawing, making image source code independent on the library used. It includes output drivers for JPEG and PNG (using the GD library) as well as for PDF and SVG. A list of the supported drawing functions is available on an external site.

Example

Example – Usage example for Image_Canvas

Example

Generation of a sample image in PNG format

<?php
require_once 'Image/Canvas.php';

// change the output format with the first parameter of factory()
$Canvas =& Image_Canvas::factory('png', array('width' => 400, 'height' => 300));

$Canvas->setLineColor('black');
$Canvas->rectangle(array('x0' => 0, 'y0' => 0, 'x1' => 399, 'y1' => 299));

$Canvas->setGradientFill(array('direction' => 'horizontal', 'start' => 'red', 'end' => 'blue'));
$Canvas->setLineColor('black');
$Canvas->ellipse(array('x' => 199, 'y' => 149, 'rx' => 50, 'ry' => 50));

$Canvas->setFont(array('name' => 'Arial', 'size' => 12));
$Canvas->addText(array('x' => 0, 'y' => 0, 'text' => 'Demonstration of what Image_Canvas do!'));

$Canvas->setFont(array('name' => 'Times New Roman', 'size' => 12));
$Canvas->addText(array('x' => 399, 'y' => 20, 'text' => 'This does not demonstrate what is does!', 'alignment' => array('horizontal' => 'right')));

$Canvas->setFont(array('name' => 'Courier New', 'size' => 7, 'angle' => 270));
$Canvas->addText(array('x' => 350, 'y' => 50, 'text' => 'True, but it\'s all independent of the format!', 'alignment' => array('horizontal' => 'right')));

$Canvas->setFont(array('name' => 'Garamond', 'size' => 10));
$Canvas->addText(array('x' => 199, 'y' => 295, 'text' => '[Changing format is done by changing 3 letters in the source]', 'alignment' => array('horizontal' => 'center', 'vertical' => 'bottom')));

$Canvas->addVertex(array('x' => 50, 'y' => 200));
$Canvas->addVertex(array('x' => 100, 'y' => 200));
$Canvas->addVertex(array('x' => 100, 'y' => 250));
$Canvas->setFillColor('red@0.2');
$Canvas->polygon(array('connect' => true));

$Canvas->image(array('x' => 398, 'y' => 298, 'filename' => './pear-icon.png', 'alignment' => array('horizontal' => 'right', 'vertical' => 'bottom')));

$Canvas->show();
?>