ImagickDraw::line()
(PECL imagick 2.0.0)
Draws a line
说明
ImagickDraw::line(float $sx,float $sy,float $ex,float $ey): bool
Warning本函数还未编写文档,仅有参数列表。
Draws a line on the image using the current stroke color, stroke opacity, and stroke width.
参数
- $sx
starting x coordinate
- $sy
starting y coordinate
- $ex
ending x coordinate
- $ey
ending y coordinate
返回值
没有返回值。
范例
Example #1 ImagickDraw::line()
<?php function line($strokeColor, $fillColor, $backgroundColor) { $draw = new \ImagickDraw(); $draw->setStrokeColor($strokeColor); $draw->setFillColor($fillColor); $draw->setStrokeWidth(2); $draw->setFontSize(72); $draw->line(125, 70, 100, 50); $draw->line(350, 170, 100, 150); $imagick = new \Imagick(); $imagick->newImage(500, 500, $backgroundColor); $imagick->setImageFormat("png"); $imagick->drawImage($draw); header("Content-Type: image/png"); echo $imagick->getImageBlob(); } ?>
<?php // a twist on the above radar screen. // This makes random colored spokes from a center point $width = 400; $height = 400; $image = new Imagick(); $image->newImage( $width, $height, new ImagickPixel( 'wheat' ) ); $draw = new ImagickDraw(); //$draw->setStrokeColor( new ImagickPixel( 'black' ) ); $rx = $width / 2; $ry = $height / 2; $total = 2*M_PI; $part = $total / 16; while( $total > 0 ) { $ex = $rx +$rx * sin( $total ); $ey = $ry +$ry * cos( $total ); $draw->line ( $rx, $ry, $ex, $ey ); $total -= $part; // We need three HEX numbers to create an RGB color code like '#FF33DD'. $draw->setStrokeColor( get_random_color() ); } $image->drawImage( $draw ); $image->setImageFormat( "png" ); header( "Content-Type: image/png" ); echo $image; exit; function get_random_color() // Thanks to Greg R. for this nice little function. { for ($i = 0; $i<6; $i++) { $c .= dechex(rand(0,15)); } return "#$c"; } ?>