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Last updated: Fri, 26 Jan 2007

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# imagerectangle

(PHP 3, PHP 4, PHP 5)

imagerectangle -- Draw a rectangle

## Описание

bool imagerectangle ( resource image, int x1, int y1, int x2, int y2, int color )

imagerectangle() creates a rectangle starting at the specified coordinates.

## 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`

  A color identifier created with imagecolorallocate()

## Возвращаемые значения

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

add a note User Contributed Notes
imagerectangle
Corey
13-Feb-2007 03:09
`Matt,
I agree that drawing 100 boxes for a 10x10 square is ludicrous. However, if we're going to talk about the best way to draw it in GD, you're still off.
Since a rectangle will draw two vertical lines in one draw, we should use it to our advantage. You can draw 5 rectangles that have the tops and bottoms outside of the image, and there you have your ten rows. Draw 5 more who's sides are out of the image and you have your columns. We just drew a 10x10 (you could do 11x11) grid in 10 draw operations.
:)`
administrador(ensaimada)sphoera(punt)com
04-May-2006 07:28
`<?php
// With this function you will draw rounded corners rectangles with transparent colors.
// Empty (not filled) figures are allowed too!!
function draw_roundrectangle($img, $x1, $y1, $x2, $y2, $radius, $color,$filled=1) {
if ($filled==1){
imagefilledrectangle($img, $x1+$radius, $y1, $x2-$radius, $y2, $color);
imagefilledrectangle($img, $x1, $y1+$radius, $x1+$radius-1, $y2-$radius, $color);
imagefilledrectangle($img, $x2-$radius+1, $y1+$radius, $x2, $y2-$radius, $color);
imagefilledarc($img,$x1+$radius, $y1+$radius, $radius*2, $radius*2, 180 , 270, $color, IMG_ARC_PIE);
imagefilledarc($img,$x2-$radius, $y1+$radius, $radius*2, $radius*2, 270 , 360, $color, IMG_ARC_PIE);
imagefilledarc($img,$x1+$radius, $y2-$radius, $radius*2, $radius*2, 90 , 180, $color, IMG_ARC_PIE);
imagefilledarc($img,$x2-$radius, $y2-$radius, $radius*2, $radius*2, 360 , 90, $color, IMG_ARC_PIE);
}else{
imageline($img, $x1+$radius, $y1, $x2-$radius, $y1, $color);
imageline($img, $x1+$radius, $y2, $x2-$radius, $y2, $color);
imageline($img, $x1, $y1+$radius, $x1, $y2-$radius, $color);
imageline($img, $x2, $y1+$radius, $x2, $y2-$radius, $color);
imagearc($img,$x1+$radius, $y1+$radius, $radius*2, $radius*2, 180 , 270, $color);
imagearc($img,$x2-$radius, $y1+$radius, $radius*2, $radius*2, 270 , 360, $color);
imagearc($img,$x1+$radius, $y2-$radius, $radius*2, $radius*2, 90 , 180, $color);
imagearc($img,$x2-$radius, $y2-$radius, $radius*2, $radius*2, 360 , 90, $color);
}
}
?>
More functions at http://www.sphoera.com`
carl at pappenheim dot net
20-Feb-2006 03:02
`Oh I don't know. He was on the right track..
<?php
$rows = 5;
$cols = 11;
$eachx = 12;
$eachy = 18;
$max = array($cols*$eachx, $rows*$eachy);
$im = imagecreatetruecolor($max[0]+1,$max[1]+1);
$white = imagecolorallocate($im,255,255,255);
imagefill($im,0,0,$white);
$black = imagecolorallocate($im,50,50,50);
for($x=$max[0]/2;$x>=0;$x-=$eachx) {
imagerectangle($im, ($max[0]/2)+$x,0, ($max[0]/2)-$x,$max[1], $black);
}
for($y=$max[1]/2;$y>=0;$y-=$eachy) {
imagerectangle($im, 0,($max[1]/2)+$y, $max[0],($max[1]/2)-$y, $black);
}
header("Content-type: image/jpeg");
imagejpeg($im,'',80);
imagedestroy($im);
?>`
matt at bargolf dot net
30-Jan-2006 02:25
`Lets not do it Mr Benson's way OK!
I'm sure if I had to draw a 10x10 grid on paper I wouldn't do it by drawing 100 individual squares, redrawing nearly half of the lines twice.
I'd probably do it by drawing 11 vertical lines and 11 horizontal lines.
function ImageGrid2(&$im,$startx,$starty,$width,$height,$xcols,$yrows,&$color) {
$endy = $starty + $height * $yrows;
for ( $x=0; $x <= $xcols; $x++ ) {
$x1 = $startx + $width * $x;
imageline ( $im, $x1, $starty, $x1, $endy, $color );
}
$endx = $startx + $width * $xcols;
for ( $y=0; $y <= $yrows; $y++ ) {
$y1 = $starty + $height * $y;
imageline ( $im, $startx, $y1, $endx, $y1, $color );
}
}`
Gros
09-Jan-2006 08:33
`1 rectangle = 4 lines.
It's easier...`
eustaquiorangel at yahoo dot com
17-Dec-2002 09:21
`If you want an empty rectangle, I mean, just the borders, fill it first with the ImageFilledRectangle function with the background color and then draw it with this function.`
jbenson at technologist dot com
27-Nov-2000 10:41
`For those wanting a function to draw a grid I've created one. I hope this is the right place to post it.
function ImageGrid(&$im,$startx,$starty,$width,$height,$xcols,$yrows,&$color) {
for ( $x=0; $x < $xcols; $x++ ) {
for ( $y=0; $y < $yrows; $y++ ) {
$x1 = $startx + ($width * $x);
$x2 = $startx + ($width * ($x+1));
$y1 = $starty + ($height * $y);
$y2 = $starty + ($height * ($y+1));
ImageRectangle($im, $x1, $y1, $x2, $y2, $color);
}
}
} // end function ImageGrid`
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Last updated: Fri, 26 Jan 2007
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