Syntax:bool ImagickDraw::setStrokeAlpha ($opacity)
Parameters: This function takes opacity one parameter, which is used to specify the transparency of the stroke object. This is a floating point value, it ranges from 0 to 1.Returned value:This function does not return any value.The following programs illustrate function ImagickDraw::setStrokeAlpha()in PHP:Program 1:
// require_once (’ path / vendor / autoload.php ’);
// Create Imagick Draw object $draw = new ImagickDraw();
// Set stroke color $strokeColor = new ImagickPixel ( ’Green’ );
// Set the fill color $fillColor = new ImagickPixel ( ’Red’ );
// Set stroke color $draw -> setStrokeColor ( ’Green’ );
// Set fill color $draw -> setFillColor ( ’Red’ );
// Set the stroke width $draw -> setStrokeWidth (5);
// Set the opacity of the stroke $draw -> setStrokeOpacity (0.5); $smoothPointsSet = [ [[ ’x’ = > 10.0 * 5, ’y’ = > 10.0 * 5], [ ’x’ = > 30.0 * 5, ’y’ = > 90.0 * 5], [ ’x’ = > 25.0 * 5, ’y’ = > 10.0 * 5], [ ’x’ = > 50.0 * 5, ’y’ = > 50.0 * 5],] ]; foreach ( $smoothPointsSet as $points ) { $draw -> bezier ( $points ); }
// Create imagick object $imagick = new Imagick();
// Set image dimensions $imagick -> newImage (300, 300, ’White’ );
// Set image format $imagick -> setImageFormat ( "png" );
// Draw image $imagick -> drawImage ( $draw ); header ( "Content-Type: image / png" );
// Show image echo $imagick -> getImageBlob(); ?> Output: Program 2: < tbody>
// require_once (’ path / vendor / autoload.php ’);
// Create an ImagickDraw object $draw = new ImagickDraw();
// Set the stroke color $draw -> setStrokeColor ( ’Green’ );
// Set fill color $draw -> setFillColor ( ’Red’ );
// Set the stroke width $draw -> setStrokeWidth (7);
// Set the opacity of the stroke $draw -> setStrokeOpacity (0.5);
// Draw a rectangle-method/">rectangle $draw -> rectangle-method/">rectangle (40, 30, 200, 260);
// Create an Imagick object $image = new Imagick();
// Set image dimensions $image -> newImage (250, 300, ’White’ );
// Set image format $image -> setImageFormat ( "png" );
// Draw image $image -> drawImage ( $draw ); header ( "Content-Type: image / png" );
// Show image echo $image -> getImageBlob(); ?> Output: Link : http://php.net/manual/en/imagickdraw.setstrokealpha.php
