imagedashedline

(PHP 4, PHP 5)

imagedashedline — Draw a dashed line

Описание

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.

Список параметров

image: An image resource, returned by one of the image creation functions, such as 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().

Возвращаемые значения

Always returns true

Примеры

Пример #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);
?>

Результатом выполнения данного примера будет что-то подобное:

Пример #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);
?>

Смотрите также

imagedestroy

imagecreatetruecolor

Last updated: Fri, 05 Sep 2008

add a note User Contributed Notes
imagedashedline

ProfessorNeo at gmx dot de
16-Feb-2006 12:07


The bug reported by 'michi at marel dot at' also exists in PHP version 5.1.1. This functions just works with vertical lines!

alien-scripts.de
13-Jul-2005 02:17


I make my own dashedline:



<?

for($l=50;$l<=550;$l+=5)

   {

    if($da == 0) { $da = 1; }

    elseif($da == 1){

    imageline($bild,$l,50,$l+5,50,$green);

    $da = 0; }

   }

?>



$l is the x-value 

and we have a dashed line :)

michi at marel dot at
19-Nov-2003 06:49


There's a bug till PHP 4.0.4 in this function. You can only draw vertical dashed lines. To draw other dashed lines you can set <ImageSetStyle> to a special dashed line and draw it by <ImageLine>.





Sample code:


<?php


function MDashedLine($image, $x0, $y0, $x1, $y1, $fg, $bg)


{


        $st = array($fg, $fg, $fg, $fg, $bg, $bg, $bg, $bg);


        ImageSetStyle($image, $st);


        ImageLine($image, $x0, $y0, $x1, $y1, IMG_COLOR_STYLED);


}


?>

add a note

imagedestroy

imagecreatetruecolor

Last updated: Fri, 05 Sep 2008