ImagickDraw::polyline
(PECL imagick 2, PECL imagick 3)
ImagickDraw::polyline — Draws a polyline
说明
public ImagickDraw::polyline(array
$coordinates
): bool警告
本函数还未编写文档,仅有参数列表。
Draws a polyline using the current stroke, stroke width, and fill color or texture, using the specified array of coordinates.
参数
-
coordinates
-
array of x and y coordinates: array( array( 'x' => 4, 'y' => 6 ), array( 'x' => 8, 'y' => 10 ) )
返回值
成功时返回 true
。
范例
示例 #1 ImagickDraw::polyline() example
<?php
function polyline($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(5);
$points = [
['x' => 40 * 5, 'y' => 10 * 5],
['x' => 20 * 5, 'y' => 20 * 5],
['x' => 70 * 5, 'y' => 50 * 5],
['x' => 60 * 5, 'y' => 15 * 5]
];
$draw->polyline($points);
$image = new \Imagick();
$image->newImage(500, 300, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>
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User Contributed Notes 1 note
kris at blackpepper dot co dot nz ¶
12 years ago
draw a filled Isosceles Triangle
<?php
$width = 601;
$height = 601;
$max_x = $width - 1;
$max_y = $height - 1;
$mid_y = $max_y / 2;
$mid_x = $max_x / 2;
$fillcolor = '#F00F00';
try {
$lo_img = new Imagick();
$lo_img->newImage( $width, $height, new ImagickPixel('transparent'));
$draw = new ImagickDraw();
$draw->setFillColor($fillcolor);
$draw->setStrokeWidth( 1 );
//start point //end point
$co_ords = array( array( 'x' => $mid_x, 'y' => 0 ),array('x'=>0,'y'=>$max_y)
,array( 'x' => 0, 'y' => $max_y ),array('x'=>$max_x,'y'=>$max_y)
,array( 'x' => $mid_x, 'y' => 0 ),array('x'=>$max_x,'y'=>$max_y)
);
$draw->polyline($co_ords);
$lo_img->drawImage( $draw );
$lo_img->setImageFormat( "png" );
header( "Content-Type: image/png" );
echo $lo_img;
$lo_img->destroy();
$draw->destroy();
exit;
} catch (Exception $ex) {
print_r($ex);
return;
}
?>