Node.js GM roll() Function
Last Updated :
31 Mar, 2023
The roll() function is an inbuilt function in the GraphicsMagick library which is used to roll an image vertically or horizontally. The function returns the true value on success.
Syntax:
roll( x, y )
Parameters: This function accepts two parameters as mentioned above and described below:
- x: This parameter is used to specify the value of the horizontal roll.
- y: This parameter is used to specify the value of vertical roll.
Return Value: This function returns the GraphicsMagick object.
Example 1:
Javascript
const gm = require( 'gm' );
gm( '1.png' )
.roll(60, 60)
.write( "roll1.png" , function (err) {
if (!err) console.log( 'done' );
});
|
Output:
Example 2:
Javascript
const gm = require( 'gm' );
gm(600, 300, 'white' )
.stroke( "green" , 3)
.font( "Helvetica.ttf" , 60)
.drawText(100, 280, "GeeksforGeeks!" )
.roll(300, 150)
.write( "roll2.png" , function (err) {
if (!err) console.log( 'done' );
});
|
Output:
Reference:
Like Article
Suggest improvement
Share your thoughts in the comments
Please Login to comment...