Function.imagefilledarc

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imagefilledarc — Draw a partial arc and fill it

Beschreibung

bool imagefilledarc ( resource $image , int $cx , int $cy , int $width , int $height , int $start , int $end , int $color , int $style )

Draws a partial arc centered at the specified coordinate in the given image .

Parameter-Liste

image

• Eine von den verschiedenen Erzeugungsfunktionen wie imagecreatetruecolor() gelieferte Grafikresource.

cx

• x-coordinate of the center.

cy

• y-coordinate of the center.

width

• The arc width.

height

• The arc height.

start

• The arc start angle, in degrees.

end

• The arc end angle, in degrees. 0° is located at the three-o'clock position, and the arc is drawn clockwise.

color

• A color identifier created with imagecolorallocate().

style

• A bitwise OR of the following possibilities: IMG_ARC_PIE IMG_ARC_CHORD IMG_ARC_NOFILL IMG_ARC_EDGED IMG_ARC_PIE and IMG_ARC_CHORD are mutually exclusive; IMG_ARC_CHORD just connects the starting and ending angles with a straight line, while IMG_ARC_PIE produces a rounded edge. IMG_ARC_NOFILL indicates that the arc or chord should be outlined, not filled. IMG_ARC_EDGED, used together with IMG_ARC_NOFILL, indicates that the beginning and ending angles should be connected to the center - this is a good way to outline (rather than fill) a 'pie slice'.

Rückgabewerte

Gibt bei Erfolg TRUE zurück, im Fehlerfall FALSE.

Beispiele

=== #1 Creating a 3D looking pie

<?php
 
// create image
$image = imagecreatetruecolor(100, 100);
 
// allocate some solors
$white    = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
$gray     = imagecolorallocate($image, 0xC0, 0xC0, 0xC0);
$darkgray = imagecolorallocate($image, 0x90, 0x90, 0x90);
$navy     = imagecolorallocate($image, 0x00, 0x00, 0x80);
$darknavy = imagecolorallocate($image, 0x00, 0x00, 0x50);
$red      = imagecolorallocate($image, 0xFF, 0x00, 0x00);
$darkred  = imagecolorallocate($image, 0x90, 0x00, 0x00);
 
// make the 3D effect
for ($i = 60; $i > 50; $i===
 
 
 
 
 
 
 
 
 
==Anmerkungen==
 
 
  Hinweis: Diese Funktion setzt die GD Bibliothek in
der Version 2.0.1 oder höher (empfohlen wird mindestens 2.0.28) voraus.
 
 
 
 
[[Kategorie:PHP 4|I]]
[[Kategorie:PHP 5|I]]
[[Kategorie:Image Funktionen|I]]