Node.js GM drawBezier() Function

Last Updated : 30 Mar, 2023

The drawBezier() function is an inbuilt function in the GraphicsMagick library which is used to draw the Bezier curve with specified coordinates. The function returns the true value of success.

Syntax:

drawBezier( [x0, y0], ..., [xn, yn] )

Parameters: This function accepts the array of points having x and y coordinates.

Return Value: This function returns the GraphicsMagick object.

Original Image:

Example 1:

javascript

// Include gm library
const gm = require('gm').subClass({imageMagick: true});
 
// Import the image
gm('1.png')
 
// set the color for the stroke
.stroke("#ffffff")
 
// Invoke Bezier function
.drawBezier([30, 20], [390, 70], [140, 110],
        [45, 56], [98, 45], [123, 65])
 
// Process and write the image
.write("drawBezier1.png", function (err) {
    if (!err) console.log('done');
});

Output:

Example 2:

javascript

// Include gm library
const gm = require('gm');
 
// Import the image
gm(600, 300, 'white')
 
// Set the color for the stroke
.stroke("green", 3)
 
// Set the font
.font("Helvetica.ttf", 60)
 
// Invoke Bezier function
.drawBezier([30, 20], [390, 70], [140, 110],
    [45, 56], [98, 45], [123, 65], [500, 250])
 
// Call to drawText Function
.drawText(100, 280, "GeeksforGeeks!")
 
// Process and write the image
.write("drawBezier1.png", function (err) {
    if (!err) console.log('done');
});