The Gmagick::getstrokeopacity() function is an inbuilt function in PHP which is used to return the opacity of stroked object outlines.
Syntax:
public GmagickDraw::getstrokeopacity( void )
Parameters: This function does not accept any parameter.
Return Value: This function returns the double describing opacity.
Errors/Exceptions: This function throws GmagickException on error.
Below programs illustrate the Gmagick::getstrokeopacity() function in PHP:
Program 1:
<?php // Create a GmagickDraw object $draw = new GmagickDraw();
// Create GmagickPixel object $strokeColor = new GmagickPixel( 'Red' );
$fillColor = new GmagickPixel( 'Green' );
// Set stroke opacity $draw ->setstrokeopacity(1);
// Set the width and height of image $draw ->setStrokeWidth(7);
$draw ->setFontSize(72);
// Function to draw circle $draw ->circle(250, 250, 100, 150);
$gmagick = new Gmagick();
$gmagick ->newImage(500, 500, 'White' );
$gmagick ->setImageFormat( "png" );
$gmagick ->drawImage( $draw );
// Using getstrokeopacity() function print_r( $draw ->getstrokeopacity());
?> |
Output:
1
Program 2:
<?php // Create a GmagickDraw object $draw = new GmagickDraw();
// Set the color $draw ->setFillColor( 'Green' );
// Set stroke opacity $draw ->setstrokeopacity(0.5);
// Function to draw line for ( $x = 0; $x < 40; $x ++) {
$draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
$draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
$draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
$draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500));
} $gmagick = new Gmagick();
$gmagick ->newImage(500, 500, 'White' );
$gmagick ->setImageFormat( "png" );
// Set the color $draw ->setFillColor( 'Black' );
// Set Font Size $draw ->setFontSize(25);
// Use of drawimage function $gmagick ->drawImage( $draw );
$gmagick ->annotateImage( $draw , 5, 120, 0,
'GeeksforGeeks: A computer science portal' );
// Display the stroke opacity echo $draw ->getstrokeopacity();
?> |
Output:
0.49999237048905
Reference:http://php.net/manual/en/gmagickdraw.getstrokeopacity.php