imagedashedline
(PHP 4, PHP 5)
imagedashedline — Draw a dashed line
Descrizione
bool imagedashedline
( resource
$image
, int $x1
, int $y1
, int $x2
, int $y2
, int $color
)This function is deprecated. Use combination of imagesetstyle() and imageline() instead.
Elenco dei parametri
-
image -
Una risorsa immagine, restituita da una delle funzioni di creazione immagine, come imagecreatetruecolor().
-
x1 -
Upper left x coordinate.
-
y1 -
Upper left y coordinate 0, 0 is the top left corner of the image.
-
x2 -
Bottom right x coordinate.
-
y2 -
Bottom right y coordinate.
-
color -
The fill color. A color identifier created with imagecolorallocate().
Valori restituiti
Always returns true
Esempi
Example #1 imagedashedline() example
<?php
// Create a 100x100 image
$im = imagecreatetruecolor(100, 100);
$white = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);
// Draw a vertical dashed line
imagedashedline($im, 50, 25, 50, 75, $white);
// Save the image
imagepng($im, './dashedline.png');
imagedestroy($im);
?>
Il precedente esempio visualizzerà qualcosa simile a:
Example #2 Alternative to imagedashedline()
<?php
// Create a 100x100 image
$im = imagecreatetruecolor(100, 100);
$white = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);
// Define our style: First 4 pixels is white and the
// next 4 is transparent. This creates the dashed line effect
$style = Array(
$white,
$white,
$white,
$white,
IMG_COLOR_TRANSPARENT,
IMG_COLOR_TRANSPARENT,
IMG_COLOR_TRANSPARENT,
IMG_COLOR_TRANSPARENT
);
imagesetstyle($im, $style);
// Draw the dashed line
imageline($im, 50, 25, 50, 75, IMG_COLOR_STYLED);
// Save the image
imagepng($im, './imageline.png');
imagedestroy($im);
?>