<?php
/**
* Please note that if you use a stroke. ( Imagick::setStrokeWidth( 2 ) ) the
* stroke is drawn outside the ellipse dimensions.
*
* @param float $ox - Offset X, distance from the center of the ellipse till the left border of the image
* @param float $oy - Offset Y, distance from the center of the ellipse till the top of the image
* @param float $rx - X radius
* @param float $ry - Y radius
* @param float float $start - Starting angle in degrees.
* @param float float $end - End angle in degrees.
*
*/
ImagickDraw::ellipse( float $ox , float $oy , float $rx , float $ry , float $start , float $end );
?>
Example of drawing a full ellipse (from 0, 360) and outputting it as a PNG.
Do note, that this is by default anti-aliased unlike the GD functions which only support it on lines that aren't on a transparent background.
<?php
$width = 200;
$height = 100;
$border = 2;
$img = new Imagick();
$img->newImage( $width, $height, new ImagickPixel( 'transparent' ) );
$draw = new ImagickDraw();
$draw->setStrokeColor( new ImagickPixel( 'black' ) );
$draw->setStrokeWidth( 2 );
$draw->setFillColor( new ImagickPixel( 'transparent' ) );
//Substract the border from the radius so it doesn't fall outside the screen.
$draw->ellipse( $width/2, $height/2, ($width/2)-$border, ($height/2)-$border, 0, 360 );
$img->drawImage( $draw );
$img->setImageFormat( "png" );
header( "Content-Type: image/png" );
echo $img;
?>
ImagickDraw::ellipse
(PECL imagick 2.0.0)
ImagickDraw::ellipse — Draws an ellipse on the image
설명
bool ImagickDraw::ellipse
( float
$ox
, float $oy
, float $rx
, float $ry
, float $start
, float $end
)Warning
이 함수는 현재 문서화 되어있지 않습니다; 인수 목록만을 제공합니다.
Draws an ellipse on the image.
인수
-
ox -
-
oy -
-
rx -
-
ry -
-
start -
-
end -
반환값
값을 반환하지 않습니다.
예제
Example #1 ImagickDraw::ellipse()
<?php
function ellipse($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(2);
$draw->setFontSize(72);
$draw->ellipse(125, 70, 100, 50, 0, 360);
$draw->ellipse(350, 70, 100, 50, 0, 315);
$draw->push();
$draw->translate(125, 250);
$draw->rotate(30);
$draw->ellipse(0, 0, 100, 50, 0, 360);
$draw->pop();
$draw->push();
$draw->translate(350, 250);
$draw->rotate(30);
$draw->ellipse(0, 0, 100, 50, 0, 315);
$draw->pop();
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");
$imagick->drawImage($draw);
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
add a note
User Contributed Notes 1 note
Axeia ¶
15 years ago
