The drawEllipse() function is an inbuilt function in the GraphicsMagick library which is used to draw an ellipse with specified coordinates. The function returns the true value of success.
Syntax:
drawEllipse( x0, y0, x1, y1, r0, r1 )
Parameters: This function accepts six 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.
- r0: This parameter stores the x-radius value of the ellipse.
- r1: This parameter stores the y-radius value of the ellipse.
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 drawEllipse function with // x0 as 230, y0 as 45, x1 as 100, // y1 as 89, r0 as 50 and r1 as 40 .drawEllipse(230, 45, 300, 89, 50, 40) // Process and write the image .write("drawEllipse1.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)
//Call to drawText Function .drawText(100, 280, "GeeksforGeeks!")
// Invoke drawEllipse function with x0 // as 230, y0 as 45, x1 as 100, y1 as // 89, r0 as 50 and r1 as 40 .drawEllipse(290, 15, 300, 210, 20, 160) // Process and write the image .write("drawEllipse1.png", function (err) {
if (!err) console.log('done');
}); |
Output:
Reference: