Nodejs | GM drawCircle() Function

The drawCircle() function is an inbuilt function in the GraphicsMagick library which is used to draw Circle with specified coordinates. The function returns the true value on success.

Syntax:

drawCircle( x0, y0, x1, y1 )

Parameters: This function accept four parameters as mentioned above and described below:.

  • x0: This parameter stores the x-coordinate value of the initial point.
  • y0: This parameter stores the y-coordinate value of the initial point.
  • x1: This parameter stores the x-coordinate value of the final point.
  • y1: This parameter stores the y-coordinate value of the final point.

Return Value: This function returns the GraphicsMagick object.

Original Image:



Example 1:

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// Include gm library
var gm = require('gm').subClass({imageMagick: true});
  
// Import the image
gm('1.png')
  
// set the color for the stroke
.stroke("#ffffff")
  
// Invoke drawCircle function with
// x0 as 30, y0 as 45, x1 as 300
// and y1 as 89
.drawCircle(30, 45, 300, 89)
  
// Process and write the image 
.write("drawCircle1.png", function (err) {
  if (!err) console.log('done');
});

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Output:

Example 2:

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// Include gm library
var 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 drawCircle function with
// x0 as 10, y0 as 145, x1 as 200
// and y1 as 199
.drawCircle(10, 145, 200, 199)
  
// Call to drawText Function
.drawText(100, 280, "GeeksforGeeks!")
  
// Process and write the image 
.write("drawCircle1.png", function (err) {
  if (!err) console.log('done');
});

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Output:

Reference:




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