IMAGEFILL(3) 1 IMAGEFILL(3)imagefill - Flood fillSYNOPSIS
bool imagefill (resource $image, int $x, int $y, int $color)
DESCRIPTION
Performs a flood fill starting at the given coordinate (top left is 0, 0) with the given $color in the $image.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $x
- x-coordinate of start point.
o $y
- y-coordinate of start point.
o $color
- The fill color. A color identifier created with imagecolorallocate(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
imagefill(3) example
<?php
$im = imagecreatetruecolor(100, 100);
// sets background to red
$red = imagecolorallocate($im, 255, 0, 0);
imagefill($im, 0, 0, $red);
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagefill()
SEE ALSO imagecolorallocate(3).
PHP Documentation Group IMAGEFILL(3)
Check Out this Related Man Page
IMAGECOLORTRANSPARENT(3) 1 IMAGECOLORTRANSPARENT(3)imagecolortransparent - Define a color as transparentSYNOPSIS
int imagecolortransparent (resource $image, [int $color])
DESCRIPTION
Sets the transparent color in the given $image.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $color
- A color identifier created with imagecolorallocate(3).
RETURN VALUES
The identifier of the new (or current, if none is specified) transparent color is returned. If $color is not specified, and the image has
no transparent color, the returned identifier will be -1.
EXAMPLES
Example #1
imagecolortransparent(3) example
<?php
// Create a 55x30 image
$im = imagecreatetruecolor(55, 30);
$red = imagecolorallocate($im, 255, 0, 0);
$black = imagecolorallocate($im, 0, 0, 0);
// Make the background transparent
imagecolortransparent($im, $black);
// Draw a red rectangle
imagefilledrectangle($im, 4, 4, 50, 25, $red);
// Save the image
imagepng($im, './imagecolortransparent.png');
imagedestroy($im);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagecolortransparent()
NOTES
Note
Transparency is copied only with imagecopymerge(3) and true color images, not with imagecopy(3) or pallete images.
Note
The transparent color is a property of the image, transparency is not a property of the color. Once you have set a color to be the
transparent color, any regions of the image in that color that were drawn previously will be transparent.
PHP Documentation Group IMAGECOLORTRANSPARENT(3)
Hi all
I have a file contains columns showing figures as below :
Input file
A B C
D 50 60 90
E 100 20 53
F 30 40 70
G 25 27 45
I want to color the value above or equal 90 by red and to be shown as below
output file... (5 Replies)
OK, let's say if we want to filter lines in man and get a different color for the word we are searching we write man find | grep print
It will mark all the words containing print red and output only those lines containing it, let's say I want to see the complete manual, but with marked words... (1 Reply)