What is Node.js GM whitePoint() Function?

In this article, we will learn Node.js GM whitePoint() Function,This free Node.js tutorial for complete beginners will help you learn Node.js from scratch.

Node.js GM whitePoint() Function

Q: How to use Node.js GM whitePoint() Function in Node.js?

The whitePoint() function is an inbuilt function in the GraphicsMagick library which is used to make chromaticity white points

Node.js GM write() Function

The whitePoint() function is an inbuilt function in the GraphicsMagick library which is used to make chromaticity white points. The function returns the true value of success.

Syntax:

whitePoint(x, y)

Parameters: This function accepts two parameters as mentioned above and described below:

x: This parameter is used to specify the x-coordinate of the white point.
y: This parameter is used to specify the y-coordinate of the white point.

Return Value: This function returns the GraphicsMagick object.

Example:

javascript

// Include gm library 
const gm = require('gm'); 
 
// Import the image 
gm(500, 200, 'black') 
 
// Set the color for the stroke 
.stroke("green", 3) 
 
.background('green') 
.font("Helvetica.ttf", 60) 
 
.drawText(30, 160, "w3wiki!") 
 
// Invoke whitePoint function with 
// x, y as 250, 100 respectively. 
.whitePoint(250, 100) 
 
// Process and write the image 
.write("whitePoint1.png", function (err) { 
if (!err) console.log('done'); 
});