mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-16 00:48:54 +00:00
* Fixing minor errors / adding improvements on many gd related functions with help from Ross Masters
* Added watermark examples on the main page based on Pierre's code by Ross Masters * Added examples for the following functions * imagefilter * imageftbbox * imagegif * imagepsbbox * imagettfbbox * iptcembed * Following examples are by Ross Masters * imagealphablending * imagecolorexact * imagecolorexactalpha * imagecolormatch * imagecolorresolve * imagecolorresolvealpha * imagegd * imagegd2 * imagelayereffect * imagepstext git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@265588 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Kalle Sommer Nielsen
parent
ac01e6d92f
commit
0ebb1e4ec0
41 changed files with 1129 additions and 262 deletions
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<!-- $Revision: 1.2 $ -->
|
||||
<!-- $Revision: 1.3 $ -->
|
||||
|
||||
<chapter xml:id="image.examples" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
|
||||
&reftitle.examples;
|
||||
|
|
@ -34,6 +34,92 @@ imagedestroy($im);
|
|||
dynamically generated.
|
||||
</para>
|
||||
</section>
|
||||
<section xml:id="image.examples-watermark">
|
||||
<para>
|
||||
<example>
|
||||
<title>Adding watermarks to images using alpha channels</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Load the stamp and the photo to apply the watermark to
|
||||
$stamp = imagecreatefrompng('stamp.png');
|
||||
$im = imagecreatefromjpeg('photo.jpeg');
|
||||
|
||||
// Set the margins for the stamp and get the height/width of the stamp image
|
||||
$marge_right = 10;
|
||||
$marge_bottom = 10;
|
||||
$sx = imagesx($stamp);
|
||||
$sy = imagesy($stamp);
|
||||
|
||||
// Copy the stamp image onto our photo using the margin offsets and the photo
|
||||
// width to calculate positioning of the stamp.
|
||||
imagecopy($im, $stamp, imagesx($im) - $sx - $marge_right, imagesy($im) - $sy - $marge_bottom, 0, 0, imagesx($stamp), imagesy($stamp));
|
||||
|
||||
// Output and free memory
|
||||
header('Content-type: image/png');
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.watermarks.png" />
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
This example is a common way to add watermarks and stamps to photos and
|
||||
copyrighted images. Note that the presence of an alpha channel in the
|
||||
stamp image as the text is anti-aliased. This is preserved during copying.
|
||||
</para>
|
||||
</section>
|
||||
<section xml:id="image.examples.merged-watermark">
|
||||
<para>
|
||||
<example>
|
||||
<title>Using <function>imagecopymerge</function> to create a translucent watermark</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Load the stamp and the photo to apply the watermark to
|
||||
$im = imagecreatefromjpeg('photo.jpeg');
|
||||
|
||||
// First we create our stamp image manually from GD
|
||||
$stamp = imagecreatetruecolor(100, 70);
|
||||
imagefilledrectangle($stamp, 0,0, 99, 99, 0x0000FF);
|
||||
imagefilledrectangle($stamp, 9,9, 90,60, 0xFFFFFF);
|
||||
$im = imagecreatefromjpeg('photo.jpeg');
|
||||
imagestring($stamp, 5, 20, 20, 'libGD', 0x0000FF);
|
||||
imagestring($stamp, 3, 20, 40, '(c) 2007-8', 0x0000FF);
|
||||
|
||||
// Set the margins for the stamp and get the height/width of the stamp image
|
||||
$marge_right = 10;
|
||||
$marge_bottom = 10;
|
||||
$sx = imagesx($stamp);
|
||||
$sy = imagesy($stamp);
|
||||
|
||||
// Merge the stamp onto our photo with an opacity (transparency) of 50%
|
||||
imagecopymerge($im, $stamp, imagesx($im) - $sx - $marge_right, imagesy($im) - $sy - $marge_bottom, 0, 0, imagesx($stamp), imagesy($stamp), 50);
|
||||
|
||||
// Save the image to file and free memory
|
||||
imagepng($im, 'photo_stamp.png');
|
||||
imagedestroy($im);
|
||||
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.watermark-merged.png" />
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
This example uses <function>imagecopymerge</function> to merge the stamp
|
||||
with our original image. Using this we can set the opacity of our stamp -
|
||||
in our example we've set it to 50% opacity (another term for transparency).
|
||||
In practice this would be useful in copyright protection as semi-transparent
|
||||
watermarks are hard to remove yet allow viewers to see the image.
|
||||
</para>
|
||||
</section>
|
||||
</chapter>
|
||||
|
||||
<!-- Keep this comment at the end of the file
|
||||
|
|
|
|||
BIN
reference/image/figures/imagelayereffect.png
Normal file
BIN
reference/image/figures/imagelayereffect.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 917 B |
BIN
reference/image/figures/watermark-merged.png
Normal file
BIN
reference/image/figures/watermark-merged.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 189 KiB |
BIN
reference/image/figures/watermarks.png
Normal file
BIN
reference/image/figures/watermarks.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 185 KiB |
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<refentry xml:id="function.imagealphablending" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagealphablending</refname>
|
||||
|
|
@ -47,6 +47,32 @@
|
|||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<example>
|
||||
<title><function>imagealphablending</function> usage example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create image
|
||||
$im = imagecreatetruecolor(100, 100);
|
||||
|
||||
// Set alphablending to on
|
||||
imagealphablending($im, true);
|
||||
|
||||
// Draw a square
|
||||
imagefilledrectangle($im, 30, 30, 70, 70, imagecolorallocate($im, 255, 0, 0));
|
||||
|
||||
// Output
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.gd.2;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<refentry xml:id="function.imagecolorat" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolorat</refname>
|
||||
|
|
@ -78,6 +78,30 @@ var_dump($r, $g, $b);
|
|||
int(119)
|
||||
int(123)
|
||||
int(180)
|
||||
]]>
|
||||
</screen>
|
||||
</example>
|
||||
<example>
|
||||
<title>Human-readable RGB values using <function>imagecolorsforindex</function></title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
$im = imagecreatefrompng("php.png");
|
||||
$rgb = imagecolorat($im, 10, 15);
|
||||
|
||||
list($r, $g, $b, $alpha) = imagecolorsforindex($rgb);
|
||||
|
||||
var_dump($r, $g, $b, $alpha);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<screen>
|
||||
<![CDATA[
|
||||
int(119)
|
||||
int(123)
|
||||
int(180)
|
||||
int(127)
|
||||
]]>
|
||||
</screen>
|
||||
</example>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<refentry xml:id='function.imagecolorclosesthwb' xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolorclosesthwb</refname>
|
||||
|
|
@ -111,7 +111,6 @@ HWB: 33
|
|||
<para>
|
||||
<simplelist>
|
||||
<member><function>imagecolorclosest</function></member>
|
||||
<member><function>imagecolorclosesthwb</function></member>
|
||||
</simplelist>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.8 $ -->
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<refentry xml:id="function.imagecolorexact" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolorexact</refname>
|
||||
|
|
@ -62,6 +62,41 @@
|
|||
color does not exist.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
<example>
|
||||
<title>Get colors from the GD logo</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Setup an image
|
||||
$im = imagecreatefrompng('./gdlogo.png');
|
||||
|
||||
$colors = Array();
|
||||
$colors[] = imagecolorexact($im, 255, 0, 0);
|
||||
$colors[] = imagecolorexact($im, 0, 0, 0);
|
||||
$colors[] = imagecolorexact($im, 255, 255, 255);
|
||||
$colors[] = imagecolorexact($im, 100, 255, 52);
|
||||
|
||||
print_r($colors);
|
||||
|
||||
// Free from memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<screen>
|
||||
<![CDATA[
|
||||
Array
|
||||
(
|
||||
[0] => 16711680
|
||||
[1] => 0
|
||||
[2] => 16777215
|
||||
[3] => 6618932
|
||||
)
|
||||
]]>
|
||||
</screen>
|
||||
</refsect1>
|
||||
<refsect1 role="seealso">
|
||||
&reftitle.seealso;
|
||||
<para>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.8 $ -->
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<refentry xml:id="function.imagecolorexactalpha" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolorexactalpha</refname>
|
||||
|
|
@ -71,6 +71,42 @@
|
|||
image, or -1 if the color does not exist in the image's palette.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
<example>
|
||||
<title>Get colors from the GD logo</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
|
||||
// Setup an image
|
||||
$im = imagecreatefrompng('./gdlogo.png');
|
||||
|
||||
$colors = Array();
|
||||
$colors[] = imagecolorexactalpha($im, 255, 0, 0, 0);
|
||||
$colors[] = imagecolorexactalpha($im, 0, 0, 0, 127);
|
||||
$colors[] = imagecolorexactalpha($im, 255, 255, 255, 55);
|
||||
$colors[] = imagecolorexactalpha($im, 100, 255, 52, 20);
|
||||
|
||||
print_r($colors);
|
||||
|
||||
// Free from memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<screen>
|
||||
<![CDATA[
|
||||
Array
|
||||
(
|
||||
[0] => 16711680
|
||||
[1] => 2130706432
|
||||
[2] => 939524095
|
||||
[3] => 342163252
|
||||
)
|
||||
]]>
|
||||
</screen>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.gd.2;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<refentry xml:id="function.imagecolormatch" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolormatch</refname>
|
||||
|
|
@ -46,6 +46,33 @@
|
|||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
<example>
|
||||
<title><function>imagecolormatch</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Setup the true color and palette images
|
||||
$im1 = imagecreatefrompng('./gdlogo.png');
|
||||
$im2 = imagecreate(imagesx($im1), imagesy($im1));
|
||||
|
||||
// Add some colors to $im2
|
||||
$colors = Array();
|
||||
$colors[] = imagecolorallocate($im2, 255, 36, 74);
|
||||
$colors[] = imagecolorallocate($im2, 40, 0, 240);
|
||||
$colors[] = imagecolorallocate($im2, 82, 100, 255);
|
||||
$colors[] = imagecolorallocate($im2, 84, 63, 44);
|
||||
|
||||
// Match these colors with the true color image
|
||||
imagecolormatch($im1, $im2);
|
||||
|
||||
// Free from memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.bundled.gd;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.8 $ -->
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<refentry xml:id="function.imagecolorresolve" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolorresolve</refname>
|
||||
|
|
@ -62,6 +62,40 @@
|
|||
Returns a color index.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&refitle.examples;
|
||||
<example>
|
||||
<title>Using <function>imagecoloresolve</function> to get colors from an image</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Load an image
|
||||
$im = imagecreatefromgif('phplogo.gif');
|
||||
|
||||
// Get closest colors from the image
|
||||
$colors = array();
|
||||
$colors[] = imagecolorresolve($im, 255, 255, 255, 0);
|
||||
$colors[] = imagecolorresolve($im, 0, 0, 200, 127);
|
||||
|
||||
// Output
|
||||
print_r($colors);
|
||||
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<screen>
|
||||
<![CDATA[
|
||||
Array
|
||||
(
|
||||
[0] => 89
|
||||
[1] => 85
|
||||
)
|
||||
]]>
|
||||
</screen>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="seealso">
|
||||
&reftitle.seealso;
|
||||
<para>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.8 $ -->
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<refentry xml:id="function.imagecolorresolvealpha" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolorresolvealpha</refname>
|
||||
|
|
@ -71,6 +71,40 @@
|
|||
Returns a color index.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&refitle.examples;
|
||||
<example>
|
||||
<title>Using <function>imagecoloresolve</function> to get colors from an image</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Load an image
|
||||
$im = imagecreatefromgif('phplogo.gif');
|
||||
|
||||
// Get closest colors from the image
|
||||
$colors = array();
|
||||
$colors[] = imagecolorresolve($im, 255, 255, 255, 0);
|
||||
$colors[] = imagecolorresolve($im, 0, 0, 200, 127);
|
||||
|
||||
// Output
|
||||
print_r($colors);
|
||||
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<screen>
|
||||
<![CDATA[
|
||||
Array
|
||||
(
|
||||
[0] => 89
|
||||
[1] => 85
|
||||
)
|
||||
]]>
|
||||
</screen>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.gd.2;
|
||||
|
|
|
|||
|
|
@ -1,11 +1,10 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<refentry xml:id="function.imagecolorset" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecolorset</refname>
|
||||
<refpurpose>Set the color for the specified palette index</refpurpose>
|
||||
</refnamediv>
|
||||
|
||||
<refsect1 role="description">
|
||||
&reftitle.description;
|
||||
<methodsynopsis>
|
||||
|
|
@ -23,7 +22,6 @@
|
|||
flood-fill.
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="parameters">
|
||||
&reftitle.parameters;
|
||||
<para>
|
||||
|
|
@ -64,14 +62,12 @@
|
|||
</variablelist>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="returnvalues">
|
||||
&reftitle.returnvalues;
|
||||
<para>
|
||||
&return.void;
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
|
|
@ -103,7 +99,6 @@ imagedestroy($im);
|
|||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="seealso">
|
||||
&reftitle.seealso;
|
||||
<para>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<!-- $Revision: 1.13 $ -->
|
||||
<refentry xml:id="function.imagecopyresized" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecopyresized</refname>
|
||||
|
|
@ -176,7 +176,7 @@ imagejpeg($thumb);
|
|||
&example.outputs.similar;
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.imagecopyresized.png"/>
|
||||
<imagedata fileref="figures/image.imagecopyresized.jpg"/>
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
<para>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.20 $ -->
|
||||
<!-- $Revision: 1.21 $ -->
|
||||
<refentry xml:id="function.imagecreatefromgif" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecreatefromgif</refname>
|
||||
|
|
@ -15,41 +15,6 @@
|
|||
<function>imagecreatefromgif</function> returns an image identifier
|
||||
representing the image obtained from the given filename.
|
||||
</para>
|
||||
<para>
|
||||
To ease debugging the following example will produce an error GIF:
|
||||
<example>
|
||||
<title>Example to handle an error during creation</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadGif ($imgname)
|
||||
{
|
||||
$im = @imagecreatefromgif ($imgname); /* Attempt to open */
|
||||
if (!$im) { /* See if it failed */
|
||||
$im = imagecreatetruecolor (150, 30); /* Create a blank image */
|
||||
$bgc = imagecolorallocate ($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate ($im, 0, 0, 0);
|
||||
imagefilledrectangle ($im, 0, 0, 150, 30, $bgc);
|
||||
/* Output an errmsg */
|
||||
imagestring ($im, 1, 5, 5, "Error loading $imgname", $tc);
|
||||
}
|
||||
return $im;
|
||||
}
|
||||
header("Content-Type: image/gif");
|
||||
$img = LoadGif("bogus.image");
|
||||
imagegif($img);
|
||||
imagedestroy($img);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.imagecreatefromgif.gif"/>
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
</para>
|
||||
&tip.fopen-wrapper;
|
||||
</refsect1>
|
||||
<refsect1 role="parameters">
|
||||
|
|
@ -73,6 +38,51 @@ imagedestroy($img);
|
|||
Returns an image resource identifier on success, &false; on errors.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
<example>
|
||||
<title>Example to handle an error during loading of a GIF</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadGif($imgname)
|
||||
{
|
||||
/* Attempt to open */
|
||||
$im = @imagecreatefromgif($imgname);
|
||||
|
||||
/* See if it failed */
|
||||
if(!$im)
|
||||
{
|
||||
/* Create a blank image */
|
||||
$im = imagecreatetruecolor (150, 30);
|
||||
$bgc = imagecolorallocate ($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate ($im, 0, 0, 0);
|
||||
|
||||
imagefilledrectangle ($im, 0, 0, 150, 30, $bgc);
|
||||
|
||||
/* Output an error message */
|
||||
imagestring ($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
|
||||
}
|
||||
|
||||
return $im;
|
||||
}
|
||||
|
||||
header('Content-Type: image/gif');
|
||||
|
||||
$img = LoadGif('bogus.image');
|
||||
|
||||
imagegif($img);
|
||||
imagedestroy($img);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.imagecreatefromgif.gif"/>
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
<note>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.20 $ -->
|
||||
<!-- $Revision: 1.21 $ -->
|
||||
<refentry xml:id="function.imagecreatefromjpeg" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecreatefromjpeg</refname>
|
||||
|
|
@ -15,44 +15,6 @@
|
|||
<function>imagecreatefromjpeg</function> returns an image identifier
|
||||
representing the image obtained from the given filename.
|
||||
</para>
|
||||
<para>
|
||||
On failure <function>imagecreatefromjpeg</function> outputs an error message,
|
||||
which unfortunately
|
||||
displays as a broken link in a browser. To ease debugging the
|
||||
following example will produce an error <acronym>JPEG</acronym>:
|
||||
<example>
|
||||
<title>Example to handle an error during creation</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadJpeg($imgname)
|
||||
{
|
||||
$im = @imagecreatefromjpeg($imgname); /* Attempt to open */
|
||||
if (!$im) { /* See if it failed */
|
||||
$im = imagecreatetruecolor(150, 30); /* Create a black image */
|
||||
$bgc = imagecolorallocate($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate($im, 0, 0, 0);
|
||||
imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
|
||||
/* Output an errmsg */
|
||||
imagestring($im, 1, 5, 5, "Error loading $imgname", $tc);
|
||||
}
|
||||
return $im;
|
||||
}
|
||||
header("Content-Type: image/jpeg");
|
||||
$img = LoadJpeg("bogus.image");
|
||||
imagejpeg($img);
|
||||
imagedestroy($img);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.imagecreatefromjpeg.jpg"/>
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
</para>
|
||||
&tip.fopen-wrapper;
|
||||
</refsect1>
|
||||
<refsect1 role="parameters">
|
||||
|
|
@ -76,6 +38,51 @@ imagedestroy($img);
|
|||
Returns an image resource identifier on success, &false; on errors.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
<example>
|
||||
<title>Example to handle an error during loading of a JPEG</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadJpeg($imgname)
|
||||
{
|
||||
/* Attempt to open */
|
||||
$im = @imagecreatefromjpeg($imgname);
|
||||
|
||||
/* See if it failed */
|
||||
if(!$im)
|
||||
{
|
||||
/* Create a black image */
|
||||
$im = imagecreatetruecolor(150, 30);
|
||||
$bgc = imagecolorallocate($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate($im, 0, 0, 0);
|
||||
|
||||
imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
|
||||
|
||||
/* Output an error message */
|
||||
imagestring($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
|
||||
}
|
||||
|
||||
return $im;
|
||||
}
|
||||
|
||||
header('Content-Type: image/jpeg');
|
||||
|
||||
$img = LoadJpeg('bogus.image');
|
||||
|
||||
imagejpeg($img);
|
||||
imagedestroy($img);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.imagecreatefromjpeg.jpg"/>
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.config.jpeg;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.16 $ -->
|
||||
<!-- $Revision: 1.17 $ -->
|
||||
<refentry xml:id="function.imagecreatefrompng" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecreatefrompng</refname>
|
||||
|
|
@ -15,44 +15,6 @@
|
|||
<function>imagecreatefrompng</function> returns an image identifier
|
||||
representing the image obtained from the given filename.
|
||||
</para>
|
||||
<para>
|
||||
<function>imagecreatefrompng</function> returns an empty string
|
||||
on failure. It also outputs an error message, which unfortunately
|
||||
displays as a broken link in a browser. To ease debugging the
|
||||
following example will produce an error <acronym>PNG</acronym>:
|
||||
<example>
|
||||
<title>Example to handle an error during creation</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadPNG($imgname)
|
||||
{
|
||||
$im = @imagecreatefrompng($imgname); /* Attempt to open */
|
||||
if (!$im) { /* See if it failed */
|
||||
$im = imagecreatetruecolor(150, 30); /* Create a blank image */
|
||||
$bgc = imagecolorallocate($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate($im, 0, 0, 0);
|
||||
imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
|
||||
/* Output an errmsg */
|
||||
imagestring($im, 1, 5, 5, "Error loading $imgname", $tc);
|
||||
}
|
||||
return $im;
|
||||
}
|
||||
header("Content-Type: image/png");
|
||||
$img = LoadPNG("bogus.image");
|
||||
imagepng($img);
|
||||
imagedestroy($img);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.imagecreatefrompng.gif"/>
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
</para>
|
||||
&tip.fopen-wrapper;
|
||||
</refsect1>
|
||||
<refsect1 role="parameters">
|
||||
|
|
@ -76,6 +38,46 @@ imagedestroy($img);
|
|||
Returns an image resource identifier on success, &false; on errors.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<example>
|
||||
<title>Example to handle an error during loading of a PNG</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadPNG($imgname)
|
||||
{
|
||||
/* Attempt to open */
|
||||
$im = @imagecreatefrompng($imgname);
|
||||
|
||||
/* See if it failed */
|
||||
if(!$im)
|
||||
{
|
||||
/* Create a blank image */
|
||||
$im = imagecreatetruecolor(150, 30);
|
||||
$bgc = imagecolorallocate($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate($im, 0, 0, 0);
|
||||
|
||||
imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
|
||||
|
||||
/* Output an error message */
|
||||
imagestring($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
|
||||
}
|
||||
|
||||
return $im;
|
||||
}
|
||||
|
||||
header('Content-Type: image/png');
|
||||
|
||||
$img = LoadPNG('bogus.image');
|
||||
|
||||
imagepng($img);
|
||||
imagedestroy($img);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
&warn.no-win32-fopen-wrapper;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.15 $ -->
|
||||
<!-- $Revision: 1.16 $ -->
|
||||
<refentry xml:id="function.imagecreatefromwbmp" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecreatefromwbmp</refname>
|
||||
|
|
@ -15,34 +15,6 @@
|
|||
<function>imagecreatefromwbmp</function> returns an image identifier
|
||||
representing the image obtained from the given filename.
|
||||
</para>
|
||||
<para>
|
||||
<function>imagecreatefromwbmp</function> returns an empty string
|
||||
on failure. It also outputs an error message, which unfortunately
|
||||
displays as a broken link in a browser. To ease debugging the
|
||||
following example will produce an error <acronym>WBMP</acronym>:
|
||||
<example>
|
||||
<title>Example to handle an error during creation</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadWBMP($imgname)
|
||||
{
|
||||
$im = @imagecreatefromwbmp($imgname); /* Attempt to open */
|
||||
if (!$im) { /* See if it failed */
|
||||
$im = imagecreatetruecolor (20, 20); /* Create a blank image */
|
||||
$bgc = imagecolorallocate($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate($im, 0, 0, 0);
|
||||
imagefilledrectangle($im, 0, 0, 10, 10, $bgc);
|
||||
/* Output an errmsg */
|
||||
imagestring($im, 1, 5, 5, "Error loading $imgname", $tc);
|
||||
}
|
||||
return $im;
|
||||
}
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
&tip.fopen-wrapper;
|
||||
</refsect1>
|
||||
<refsect1 role="parameters">
|
||||
|
|
@ -66,6 +38,46 @@ function LoadWBMP($imgname)
|
|||
Returns an image resource identifier on success, &false; on errors.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<example>
|
||||
<title>Example to handle an error during loading of a WBMP</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
function LoadWBMP($imgname)
|
||||
{
|
||||
/* Attempt to open */
|
||||
$im = @imagecreatefromwbmp($imgname);
|
||||
|
||||
/* See if it failed */
|
||||
if(!$im)
|
||||
{
|
||||
/* Create a blank image */
|
||||
$im = imagecreatetruecolor (20, 20);
|
||||
$bgc = imagecolorallocate($im, 255, 255, 255);
|
||||
$tc = imagecolorallocate($im, 0, 0, 0);
|
||||
|
||||
imagefilledrectangle($im, 0, 0, 10, 10, $bgc);
|
||||
|
||||
/* Output an error message */
|
||||
imagestring($im, 1, 5, 5, 'Error loading ' . $imgname, $tc);
|
||||
}
|
||||
|
||||
return $im;
|
||||
}
|
||||
|
||||
header('Content-Type: image/png');
|
||||
|
||||
$img = LoadPNG('bogus.image');
|
||||
|
||||
imagwbmp($img);
|
||||
imagedestroy($img);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.config.wbmp;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<refentry xml:id="function.imagecreatefromxbm" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagecreatefromxbm</refname>
|
||||
|
|
@ -16,7 +16,6 @@
|
|||
representing the image obtained from the given filename.
|
||||
</para>
|
||||
&tip.fopen-wrapper;
|
||||
&warn.no-win32-fopen-wrapper;
|
||||
</refsect1>
|
||||
<refsect1 role="parameters">
|
||||
&reftitle.parameters;
|
||||
|
|
@ -59,6 +58,10 @@ imagedestroy($xbm);
|
|||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
&warn.no-win32-fopen-wrapper;
|
||||
</refsect1>
|
||||
</refentry>
|
||||
|
||||
<!-- Keep this comment at the end of the file
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version='1.0' encoding='iso-8859-1'?>
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<refentry xml:id="function.imagefilter" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagefilter</refname>
|
||||
|
|
@ -189,7 +189,6 @@
|
|||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="changelog">
|
||||
&reftitle.changelog;
|
||||
<para>
|
||||
|
|
@ -213,7 +212,6 @@
|
|||
</informaltable>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
|
|
@ -223,10 +221,15 @@
|
|||
<![CDATA[
|
||||
<?php
|
||||
$im = imagecreatefrompng('dave.png');
|
||||
if ($im && imagefilter($im, IMG_FILTER_GRAYSCALE)) {
|
||||
|
||||
if($im && imagefilter($im, IMG_FILTER_GRAYSCALE))
|
||||
{
|
||||
echo 'Image converted to grayscale.';
|
||||
|
||||
imagepng($im, 'dave.png');
|
||||
} else {
|
||||
}
|
||||
else
|
||||
{
|
||||
echo 'Conversion to grayscale failed.';
|
||||
}
|
||||
|
||||
|
|
@ -241,14 +244,18 @@ imagedestroy($im);
|
|||
<![CDATA[
|
||||
<?php
|
||||
$im = imagecreatefrompng('sean.png');
|
||||
if ($im && imagefilter($im, IMG_FILTER_BRIGHTNESS, 20)) {
|
||||
|
||||
if($im && imagefilter($im, IMG_FILTER_BRIGHTNESS, 20))
|
||||
{
|
||||
echo 'Image brightness changed.';
|
||||
|
||||
imagepng($im, 'sean.png');
|
||||
} else {
|
||||
imagedestroy($im);
|
||||
}
|
||||
else
|
||||
{
|
||||
echo 'Image brightness change failed.';
|
||||
}
|
||||
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
|
|
@ -261,14 +268,63 @@ imagedestroy($im);
|
|||
$im = imagecreatefrompng('philip.png');
|
||||
|
||||
/* R, G, B, so 0, 255, 0 is green */
|
||||
if ($im && imagefilter($im, IMG_FILTER_COLORIZE, 0, 255, 0)) {
|
||||
if($im && imagefilter($im, IMG_FILTER_COLORIZE, 0, 255, 0))
|
||||
{
|
||||
echo 'Image successfully shaded green.';
|
||||
|
||||
imagepng($im, 'philip.png');
|
||||
} else {
|
||||
imagedestroy($im);
|
||||
}
|
||||
else
|
||||
{
|
||||
echo 'Green shading failed.';
|
||||
}
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
<example>
|
||||
<title><function>imagefilter</function> negate example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Define our negate function so its portable for
|
||||
// php versions without imagefilter()
|
||||
function negate($im)
|
||||
{
|
||||
if(function_exists('imagefilter'))
|
||||
{
|
||||
return imagefilter($im, IMG_FILTER_NEGATE);
|
||||
}
|
||||
|
||||
imagedestroy($im);
|
||||
for($x = 0; $x < imagesx($im); ++$x)
|
||||
{
|
||||
for($y = 0; $y < imagesy($im); ++$y)
|
||||
{
|
||||
$index = imagecolorat($im, $x, $y);
|
||||
$rgb = imagecolorsforindex($index);
|
||||
$color = imagecolorallocate($im, (255 - $rgb['red'], (255 - $rgb['green'], (255 - $rgb['blue']);
|
||||
|
||||
imagesetpixel($im, $x, $y, $color);
|
||||
}
|
||||
}
|
||||
|
||||
return(true);
|
||||
}
|
||||
|
||||
$im = imagecreatefromjpeg('kalle.jpg');
|
||||
|
||||
if($im && negate($im))
|
||||
{
|
||||
echo 'Image successfully converted to negative colors.';
|
||||
|
||||
imagejpeg($im, 'kalle.jpg', 100);
|
||||
imagedestroy($im);
|
||||
}
|
||||
else
|
||||
{
|
||||
echo 'Converting to negative colors failed.';
|
||||
}
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<refentry xml:id='function.imageftbbox' xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imageftbbox</refname>
|
||||
|
|
@ -24,7 +24,8 @@
|
|||
<term><parameter>size</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
The font size in pixels.
|
||||
The font size. Depending on your version of GD, this should be
|
||||
specified as the pixel size (GD1) or point size (GD2).
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
|
@ -136,6 +137,45 @@
|
|||
corner seeing the text horizontally.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title><function>imageftbbox</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a 300x150 image
|
||||
$im = imagecreatetruecolor(300, 150);
|
||||
$black = imagecolorallocate($im, 0, 0, 0);
|
||||
$white = imagecolorallocate($im, 255, 255, 255);
|
||||
|
||||
// Set the background to be white
|
||||
imagefilledrectangle($im, 0, 0, 299, 299, $white);
|
||||
|
||||
// Path to our font file
|
||||
$font = './arial.ttf';
|
||||
|
||||
// First we create our bounding box
|
||||
$bbox = imageftbbox(10, 0, $font, 'The PHP Documentation Group');
|
||||
|
||||
// This is our cordinates for X and Y
|
||||
$x = $bbox[0] + (imagesx($im) / 2) - ($bbox[4] / 2) - 5;
|
||||
$y = $bbox[1] + (imagesy($im) / 2) - ($bbox[5] / 2) - 5;
|
||||
|
||||
imagefttext($im, 10, 0, $x, $y, $black, $font, 'The PHP Documentation Group');
|
||||
|
||||
// Output to browser
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.gd.2;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.17 $ -->
|
||||
<!-- $Revision: 1.18 $ -->
|
||||
<refentry xml:id='function.imagefttext' xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagefttext</refname>
|
||||
|
|
@ -28,7 +28,8 @@
|
|||
<varlistentry>
|
||||
<term><parameter>size</parameter></term>
|
||||
<listitem>
|
||||
<para>The font size to use in points.
|
||||
<para>
|
||||
The font size to use in points.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<refentry xml:id='function.imagegd' xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagegd</refname>
|
||||
|
|
@ -39,6 +39,52 @@
|
|||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title>Outputting a GD image</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a blank image and add some text
|
||||
$im = imagecreatetruecolor(120, 20);
|
||||
$text_color = imagecolorallocate($im, 233, 14, 91);
|
||||
imagestring($im, 1, 5, 5, "A Simple Text String", $text_color);
|
||||
|
||||
// Output the image
|
||||
imagegd($im);
|
||||
|
||||
// Free up memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
<para>
|
||||
<example>
|
||||
<title>Saving a GD image</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a blank image and add some text
|
||||
$im = imagecreatetruecolor(120, 20);
|
||||
$text_color = imagecolorallocate($im, 233, 14, 91);
|
||||
imagestring($im, 1, 5, 5, "A Simple Text String", $text_color);
|
||||
|
||||
// Save the gd image
|
||||
// The file format for GD limages is .gd, see http://www.libgd.org/GdFileFormats
|
||||
imagegd($im, 'simple.gd');
|
||||
|
||||
// Free up memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
<note>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.18 $ -->
|
||||
<!-- $Revision: 1.19 $ -->
|
||||
<refentry xml:id='function.imagegd2' xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagegd2</refname>
|
||||
|
|
@ -59,6 +59,51 @@
|
|||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title>Outputting a GD2 image</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a blank image and add some text
|
||||
$im = imagecreatetruecolor(120, 20);
|
||||
$text_color = imagecolorallocate($im, 233, 14, 91);
|
||||
imagestring($im, 1, 5, 5, "A Simple Text String", $text_color);
|
||||
|
||||
imagegd2($im);
|
||||
|
||||
// Free up memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
<para>
|
||||
<example>
|
||||
<title>Saving a GD2 image</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a blank image and add some text
|
||||
$im = imagecreatetruecolor(120, 20);
|
||||
$text_color = imagecolorallocate($im, 233, 14, 91);
|
||||
imagestring($im, 1, 5, 5, "A Simple Text String", $text_color);
|
||||
|
||||
// Save the gd2 image
|
||||
// The file format for GD2 limages is .gd2, see http://www.libgd.org/GdFileFormats
|
||||
imagegd2($im, 'simple.gd');
|
||||
|
||||
// Free up memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.gd.2;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.18 $ -->
|
||||
<!-- $Revision: 1.19 $ -->
|
||||
<refentry xml:id="function.imagegif" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
|
||||
<refnamediv>
|
||||
<refname>imagegif</refname>
|
||||
|
|
@ -49,6 +49,55 @@
|
|||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title>Outputting an image using <function>imagegif</function></title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a new image instance
|
||||
$im = imagecreatetruecolor(100, 100);
|
||||
|
||||
// Make the background white
|
||||
imagefilledrectangle($im, 0, 0, 99, 99, 0xFFFFFF);
|
||||
|
||||
// Draw a text string on the image
|
||||
imagestring($im, 3, 40, 20, 'GD Library', 0xFFBA00);
|
||||
|
||||
// Output the image to browser
|
||||
header('Content-type: image/gif');
|
||||
|
||||
imagegif($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
<example>
|
||||
<title>Converting a PNG image to GIF using <function>imagegif</function></title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
|
||||
// Load the PNG
|
||||
$png = imagecreatefrompng('./php.png');
|
||||
|
||||
// Save the image as a GIF
|
||||
imagegif($png, './php.gif');
|
||||
|
||||
// Free from memory
|
||||
imagedestroy($png);
|
||||
|
||||
// We're done
|
||||
echo 'Converted PNG image to GIF with success!';
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
<note>
|
||||
|
|
@ -71,20 +120,52 @@
|
|||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
if (function_exists("imagegif")) {
|
||||
header("Content-type: image/gif");
|
||||
// Create a new image instance
|
||||
$im = imagecreatetruecolor(100, 100);
|
||||
|
||||
// Do some image operations here
|
||||
|
||||
// Handle output
|
||||
if(function_exists('imagegif'))
|
||||
{
|
||||
// For GIF
|
||||
header('Content-type: image/gif');
|
||||
|
||||
imagegif($im);
|
||||
} elseif (function_exists("imagejpeg")) {
|
||||
header("Content-type: image/jpeg");
|
||||
imagejpeg($im, "", 0.5);
|
||||
} elseif (function_exists("imagepng")) {
|
||||
header("Content-type: image/png");
|
||||
}
|
||||
elseif(function_exists('imagejpeg'))
|
||||
{
|
||||
// For JPEG
|
||||
header('Content-type: image/jpeg');
|
||||
|
||||
imagejpeg($im, NULL, 100);
|
||||
}
|
||||
elseif(function_exists('imagepng'))
|
||||
{
|
||||
// For PNG
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
} elseif (function_exists("imagewbmp")) {
|
||||
header("Content-type: image/vnd.wap.wbmp");
|
||||
}
|
||||
elseif(function_exists('imagewbmp'))
|
||||
{
|
||||
// For WBMP
|
||||
header('Content-type: image/vnd.wap.wbmp');
|
||||
|
||||
imagewbmp($im);
|
||||
} else {
|
||||
die("No image support in this PHP server");
|
||||
}
|
||||
else
|
||||
{
|
||||
imagedestroy($im);
|
||||
|
||||
die('No image support in this PHP server');
|
||||
}
|
||||
|
||||
// If image support was found for one of these
|
||||
// formats, then free it from memory
|
||||
if($im)
|
||||
{
|
||||
imagedestroy($im);
|
||||
}
|
||||
?>
|
||||
]]>
|
||||
|
|
@ -94,7 +175,7 @@ if (function_exists("imagegif")) {
|
|||
</note>
|
||||
<note>
|
||||
<para>
|
||||
As of version 3.0.18 and 4.0.2 you can use the function
|
||||
As of PHP 3.0.18 and 4.0.2 you can use the function
|
||||
<function>imagetypes</function> in place of
|
||||
<function>function_exists</function> for checking
|
||||
the presence of the various supported image formats:
|
||||
|
|
@ -102,10 +183,13 @@ if (function_exists("imagegif")) {
|
|||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
if (imagetypes() & IMG_GIF) {
|
||||
header ("Content-type: image/gif");
|
||||
imagegif ($im);
|
||||
} elseif (imagetypes() & IMG_JPG) {
|
||||
if(imagetypes() & IMG_GIF)
|
||||
{
|
||||
header('Content-type: image/gif');
|
||||
imagegif($im);
|
||||
}
|
||||
elseif(imagetypes() & IMG_JPG)
|
||||
{
|
||||
/* ... etc. */
|
||||
}
|
||||
?>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version='1.0' encoding='iso-8859-1'?>
|
||||
<!-- $Revision: 1.8 $ -->
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<refentry xml:id="function.imagelayereffect" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagelayereffect</refname>
|
||||
|
|
@ -76,6 +76,42 @@
|
|||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
<example>
|
||||
<title><function>imagelayereffect</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Setup an image
|
||||
$im = imagecreatetruecolor(100, 100);
|
||||
|
||||
// Set a background
|
||||
imagefilledrectangle($im, 0, 0, 100, 100, imagecolorallocate($im, 220, 220, 220));
|
||||
|
||||
// Apply the overlay alpha blending flag
|
||||
imagelayereffect($im, IMG_EFFECT_OVERLAY);
|
||||
|
||||
// Draw two grey ellipses
|
||||
imagefilledellipse($im, 50, 50, 40, 40, imagecolorallocate($im, 100, 255, 100));
|
||||
imagefilledellipse($im, 50, 50, 50, 80, imagecolorallocate($im, 100, 100, 255));
|
||||
imagefilledellipse($im, 50, 50, 80, 50, imagecolorallocate($im, 255, 100, 100));
|
||||
|
||||
// Output
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs.similar;
|
||||
<mediaobject>
|
||||
<imageobject>
|
||||
<imagedata fileref="figures/image.imagelayereffect.png"/>
|
||||
</imageobject>
|
||||
</mediaobject>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.bundled.gd;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<!-- $Revision: 1.13 $ -->
|
||||
<refentry xml:id="function.imageline" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imageline</refname>
|
||||
|
|
@ -17,7 +17,7 @@
|
|||
<methodparam><type>int</type><parameter>color</parameter></methodparam>
|
||||
</methodsynopsis>
|
||||
<para>
|
||||
<function>imageline</function> draws a line between the two given points.
|
||||
Draws a line between the two given points.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="parameters">
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.9 $ -->
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.imageloadfont">
|
||||
<refnamediv>
|
||||
<refname>imageloadfont</refname>
|
||||
|
|
@ -90,18 +90,27 @@
|
|||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title>Using imageloadfont</title>
|
||||
<title><function>imageloadfont</function> usage example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
header("Content-type: image/png");
|
||||
// Create a new image instance
|
||||
$im = imagecreatetruecolor(50, 20);
|
||||
$black = imagecolorallocate($im, 0, 0, 0);
|
||||
$white = imagecolorallocate($im, 255, 255, 255);
|
||||
|
||||
// Make the background white
|
||||
imagefilledrectangle($im, 0, 0, 49, 19, $white);
|
||||
$font = imageloadfont("04b.gdf");
|
||||
imagestring($im, $font, 0, 0, "Hello", $black);
|
||||
|
||||
// Load the gd font and write 'Hello'
|
||||
$font = imageloadfont('./04b.gdf');
|
||||
imagestring($im, $font, 0, 0, 'Hello', $black);
|
||||
|
||||
// Output to browser
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.14 $ -->
|
||||
<!-- $Revision: 1.15 $ -->
|
||||
<refentry xml:id="function.imagepng" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagepng</refname>
|
||||
|
|
@ -107,7 +107,11 @@
|
|||
<![CDATA[
|
||||
<?php
|
||||
$im = imagecreatefrompng("test.png");
|
||||
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.15 $ -->
|
||||
<!-- $Revision: 1.16 $ -->
|
||||
<refentry xml:id="function.imagepolygon" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagepolygon</refname>
|
||||
|
|
@ -28,8 +28,29 @@
|
|||
<term><parameter>points</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
An array containing the polygon's vertices, i.e. points[0] = x0,
|
||||
points[1] = y0, points[2] = x1, points[3] = y1, etc.
|
||||
An array containing the polygon's vertices, e.g.:
|
||||
<informaltable>
|
||||
<tgroup cols="2">
|
||||
<tbody>
|
||||
<row>
|
||||
<entry>points[0]</entry>
|
||||
<entry>= x0</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>points[1]</entry>
|
||||
<entry>= y0</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>points[2]</entry>
|
||||
<entry>= x1</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>points[3]</entry>
|
||||
<entry>= y1</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</informaltable>
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
|
@ -67,17 +88,17 @@
|
|||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// create a blank image
|
||||
// Create a blank image
|
||||
$image = imagecreatetruecolor(400, 300);
|
||||
|
||||
// fill the background color
|
||||
// Fill the background color
|
||||
$bg = imagecolorallocate($image, 0, 0, 0);
|
||||
|
||||
// choose a color for the polygon
|
||||
// Allocate a color for the polygon
|
||||
$col_poly = imagecolorallocate($image, 255, 255, 255);
|
||||
|
||||
// draw the polygon
|
||||
imagepolygon($image, array (
|
||||
// Draw the polygon
|
||||
imagepolygon($image, array(
|
||||
0, 0,
|
||||
100, 200,
|
||||
300, 200
|
||||
|
|
@ -85,10 +106,11 @@ imagepolygon($image, array (
|
|||
3,
|
||||
$col_poly);
|
||||
|
||||
// output the picture
|
||||
header("Content-type: image/png");
|
||||
imagepng($image);
|
||||
// Output the picture to the browser
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($image);
|
||||
imagedestroy($image);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.14 $ -->
|
||||
<!-- $Revision: 1.15 $ -->
|
||||
<refentry xml:id="function.imagepsbbox" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagepsbbox</refname>
|
||||
|
|
@ -99,29 +99,66 @@
|
|||
<para>
|
||||
Returns an array containing the following elements:
|
||||
<informaltable>
|
||||
<tgroup cols="2">
|
||||
<tbody>
|
||||
<row>
|
||||
<entry>0</entry>
|
||||
<entry>left x-coordinate</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>1</entry>
|
||||
<entry>upper y-coordinate</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>2</entry>
|
||||
<entry>right x-coordinate</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>3</entry>
|
||||
<entry>lower y-coordinate</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
<tgroup cols="2">
|
||||
<tbody>
|
||||
<row>
|
||||
<entry>0</entry>
|
||||
<entry>left x-coordinate</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>1</entry>
|
||||
<entry>upper y-coordinate</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>2</entry>
|
||||
<entry>right x-coordinate</entry>
|
||||
</row>
|
||||
<row>
|
||||
<entry>3</entry>
|
||||
<entry>lower y-coordinate</entry>
|
||||
</row>
|
||||
</tbody>
|
||||
</tgroup>
|
||||
</informaltable>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<example>
|
||||
<title><function>imagepsbbox</function> usage</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create image handle
|
||||
$im = imagecreatetruecolor(200, 200);
|
||||
|
||||
// Allocate colors
|
||||
$black = imagecolorallocate($im, 0, 0, 0);
|
||||
$white = imagecolorallocate($im, 255, 255, 255);
|
||||
|
||||
// Load the PostScript Font
|
||||
$font = imagepsloadfont('font.pfm');
|
||||
|
||||
// Make a bounding box for the font
|
||||
$bbox = imagepsbbox('Sample text is simple', $font, 12);
|
||||
|
||||
// Define our X and Y cordinates
|
||||
$x = ($bbox[2] / 2) - 10;
|
||||
$y = ($bbox[3] / 2) - 10;
|
||||
|
||||
// Write the font to the image
|
||||
imagepstext($im, 'Sample text is simple', $font, 12, $black, $white, $x, $y);
|
||||
|
||||
// Output and free memory
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.config.t1lib;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.14 $ -->
|
||||
<!-- $Revision: 1.15 $ -->
|
||||
<refentry xml:id="function.imagepsloadfont" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagepsloadfont</refname>
|
||||
|
|
@ -46,14 +46,22 @@
|
|||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
header("Content-type: image/png");
|
||||
// Create a new image instance
|
||||
$im = imagecreatetruecolor(350, 45);
|
||||
|
||||
// Allocate colors and fill the background
|
||||
$black = imagecolorallocate($im, 0, 0, 0);
|
||||
$white = imagecolorallocate($im, 255, 255, 255);
|
||||
imagefilledrectangle($im, 0, 0, 349, 44, $white);
|
||||
$font = imagepsloadfont("bchbi.pfb"); // or locate your .pfb files on your machine
|
||||
|
||||
// Load a font, write to the image and free the font from memory
|
||||
$font = imagepsloadfont("bchbi.pfb");
|
||||
imagepstext($im, "Testing... It worked!", $font, 32, $white, $black, 32, 32);
|
||||
imagepsfreefont($font);
|
||||
|
||||
// Output the image
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.15 $ -->
|
||||
<!-- $Revision: 1.16 $ -->
|
||||
<refentry xml:id="function.imagepstext" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagepstext</refname>
|
||||
|
|
@ -168,6 +168,36 @@
|
|||
</informaltable>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<example>
|
||||
<title><function>imagepstext</function> usage</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create image handle
|
||||
$im = imagecreatetruecolor(200, 200);
|
||||
|
||||
// Allocate colors
|
||||
$black = imagecolorallocate($im, 0, 0, 0);
|
||||
$white = imagecolorallocate($im, 255, 255, 255);
|
||||
|
||||
// Load the PostScript Font
|
||||
$font = imagepsloadfont('font.pfm');
|
||||
|
||||
// Write the font to the image
|
||||
imagepstext($im, 'Sample text is simple', $font, 12, $black, $white, 50, 50);
|
||||
|
||||
// Output and free memory
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
¬e.config.t1lib;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.10 $ -->
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<refentry xml:id="function.imagesetbrush" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagesetbrush</refname>
|
||||
|
|
@ -46,7 +46,7 @@
|
|||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title>Saving an XBM file</title>
|
||||
<title><function>imagesetbrush</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<refentry xml:id="function.imagesetthickness" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagesetthickness</refname>
|
||||
|
|
@ -44,7 +44,7 @@
|
|||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title>Saving an XBM file</title>
|
||||
<title><function>imagesetthickness</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<!-- $Revision: 1.13 $ -->
|
||||
<refentry xml:id="function.imagesettile" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagesettile</refname>
|
||||
|
|
@ -58,7 +58,7 @@
|
|||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title>Saving an XBM file</title>
|
||||
<title><function>imagesettile</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.17 $ -->
|
||||
<!-- $Revision: 1.18 $ -->
|
||||
<refentry xml:id="function.imagestring" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagestring</refname>
|
||||
|
|
@ -76,19 +76,21 @@
|
|||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// create a 100*30 image
|
||||
// Create a 100*30 image
|
||||
$im = imagecreate(100, 30);
|
||||
|
||||
// white background and blue text
|
||||
// White background and blue text
|
||||
$bg = imagecolorallocate($im, 255, 255, 255);
|
||||
$textcolor = imagecolorallocate($im, 0, 0, 255);
|
||||
|
||||
// write the string at the top left
|
||||
imagestring($im, 5, 0, 0, "Hello world!", $textcolor);
|
||||
// Write the string at the top left
|
||||
imagestring($im, 5, 0, 0, 'Hello world!', $textcolor);
|
||||
|
||||
// Output the image
|
||||
header('Content-type: image/png');
|
||||
|
||||
// output the image
|
||||
header("Content-type: image/png");
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<!-- $Revision: 1.13 $ -->
|
||||
<refentry xml:id="function.imagettfbbox" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
|
||||
<refnamediv>
|
||||
<refname>imagettfbbox</refname>
|
||||
|
|
@ -113,7 +113,57 @@
|
|||
corner seeing the text horizontally.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="seealso">
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title><function>imagettfbbox</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a 300x150 image
|
||||
$im = imagecreatetruecolor(300, 150);
|
||||
$black = imagecolorallocate($im, 0, 0, 0);
|
||||
$white = imagecolorallocate($im, 255, 255, 255);
|
||||
|
||||
// Set the background to be white
|
||||
imagefilledrectangle($im, 0, 0, 299, 299, $white);
|
||||
|
||||
// Path to our font file
|
||||
$font = './arial.ttf';
|
||||
|
||||
// First we create our bounding box for the first text
|
||||
$bbox = imagettfbbox(10, 45, $font, 'Powered by PHP ' . phpversion());
|
||||
|
||||
// This is our cordinates for X and Y
|
||||
$x = $bbox[0] + (imagesx($im) / 2) - ($bbox[4] / 2) - 25;
|
||||
$y = $bbox[1] + (imagesy($im) / 2) - ($bbox[5] / 2) - 5;
|
||||
|
||||
// Write it
|
||||
imagettftext($im, 10, 45, $x, $y, $black, $font, 'Powered by PHP ' . phpversion());
|
||||
|
||||
// Create the next bounding box for the second text
|
||||
$bbox = imagettfbbox(10, 45, $font, 'and Zend Engine ' . zend_version());
|
||||
|
||||
// Set the cordinates so its next to the first text
|
||||
$x = $bbox[0] + (imagesx($im) / 2) - ($bbox[4] / 2) + 10;
|
||||
$y = $bbox[1] + (imagesy($im) / 2) - ($bbox[5] / 2) - 5;
|
||||
|
||||
// Write it
|
||||
imagettftext($im, 10, 45, $x, $y, $black, $font, 'and Zend Engine ' . zend_version());
|
||||
|
||||
// Output to browser
|
||||
header('Content-type: image/png');
|
||||
|
||||
imagepng($im);
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.seealso;
|
||||
<note>
|
||||
<para>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<!-- $Revision: 1.26 $ -->
|
||||
<!-- $Revision: 1.27 $ -->
|
||||
<refentry xml:id="function.imagettftext" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
|
||||
<refnamediv>
|
||||
<refname>imagettftext</refname>
|
||||
|
|
@ -166,7 +166,7 @@ $font = 'SomeFont';
|
|||
<![CDATA[
|
||||
<?php
|
||||
// Set the content-type
|
||||
header("Content-type: image/png");
|
||||
header('Content-type: image/png');
|
||||
|
||||
// Create the image
|
||||
$im = imagecreatetruecolor(400, 30);
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.11 $ -->
|
||||
<!-- $Revision: 1.12 $ -->
|
||||
<refentry xml:id="function.imagewbmp" xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>imagewbmp</refname>
|
||||
|
|
@ -83,6 +83,7 @@ imagedestroy($im);
|
|||
<title>Saving the WBMP image</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// Create a blank image and add some text
|
||||
$im = imagecreatetruecolor(120, 20);
|
||||
$text_color = imagecolorallocate($im, 233, 14, 91);
|
||||
|
|
@ -93,6 +94,7 @@ imagewbmp($im, 'simpletext.wbmp');
|
|||
|
||||
// Free up memory
|
||||
imagedestroy($im);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.7 $ -->
|
||||
<!-- $Revision: 1.8 $ -->
|
||||
<refentry xml:id='function.iptcembed' xmlns="http://docbook.org/ns/docbook">
|
||||
<refnamediv>
|
||||
<refname>iptcembed</refname>
|
||||
|
|
@ -53,6 +53,71 @@
|
|||
returned as a string, &false; on errors.
|
||||
</para>
|
||||
</refsect1>
|
||||
<refsect role="examples">
|
||||
&reftitle.examples;
|
||||
<example>
|
||||
<title>Embedding IPTC data into a JPEG</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
|
||||
// iptc_make_tag() function by Thies C. Arntzen
|
||||
function iptc_make_tag($rec, $data, $value)
|
||||
{
|
||||
$length = strlen($value);
|
||||
$retval = chr(0x1C) . chr($rec) . chr($data);
|
||||
|
||||
if($length < 0x8000)
|
||||
{
|
||||
$retval .= chr($length >> 8) . chr($length & 0xFF);
|
||||
}
|
||||
else
|
||||
{
|
||||
$retval .= chr(0x80) .
|
||||
chr(0x04) .
|
||||
chr(($length >> 24) & 0xFF) .
|
||||
chr(($length >> 16) & 0xFF) .
|
||||
chr(($length >> 8) & 0xFF) .
|
||||
chr($length & 0xFF);
|
||||
}
|
||||
|
||||
return $retval . $value;
|
||||
}
|
||||
|
||||
// Path to jpeg file
|
||||
$path = './phplogo.jpg';
|
||||
|
||||
// We need to check if theres any IPTC data in the jpeg image. If there is then
|
||||
// bail out because we cannot embed any image that already has some IPTC data!
|
||||
$image = getimagesize($path, $info);
|
||||
|
||||
if(isset($info['APP13']))
|
||||
{
|
||||
die('Error: IPTC data found in source image, cannot continue');
|
||||
}
|
||||
|
||||
// Set the IPTC tags
|
||||
$iptc = array(
|
||||
'2#120' => 'Test image',
|
||||
'2#116' => 'Copyright 2008, The PHP Group'
|
||||
);
|
||||
|
||||
// Convert the IPTC tags into binary code
|
||||
$data = '';
|
||||
|
||||
foreach($iptc as $tag => $string)
|
||||
{
|
||||
$tag = substr($tag, 2);
|
||||
$data .= iptc_make_tag(2, substr($tag, 2), $string);
|
||||
}
|
||||
|
||||
// Embed the IPTC data
|
||||
$content = iptcembed($data, $path);
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</refsect1>
|
||||
<refsect1 role="notes">
|
||||
&reftitle.notes;
|
||||
<note>
|
||||
|
|
|
|||
Loading…
Reference in a new issue