Node.js GM whitePoint() 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, "GeeksforGeeks!")

// 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');
});

Output:

Reference:

• http://www.graphicsmagick.org/GraphicsMagick.html#details-white-point
• https://www.npmjs.com/package/gm