In this article, we are going to see how to change the fill color of a canvas circle using FabricJS. The canvas means the circle is movable and can be stretched according to requirement. Further, the circle can be customized when it comes to initial stroke color, fill color, stroke width, or radius.
Approach: To make it possible we are going to use a JavaScript library called FabricJS. After importing the library using CDN, we will create a canvas block in the body tag which will contain our circle. After this, we will initialize instances of Canvas and Circle provided by FabricJS and change the fill color of the circle using fill property and render the Circle on the Canvas as given in the example below.
Syntax:
fabric.Circle({
radius: number,
fill: string
});
Parameters: This function accepts two parameters as mentioned above and described below:
- radius: It specifies the radius of circle.
- fill: It specifies the color to be filled into the circle.
Example: This example uses FabricJS to change the fill color of a canvas circle.
<!DOCTYPE html> <html> <head> <title> Fabric.js | Circle fill Property </title> <!-- FabricJS CDN --> <script src= </script> </head> <body> <canvas id="canvas" width="600" height="200" style="border:1px solid #000000"> </canvas> <script> // Initiate a Canvas instance var canvas = new fabric.Canvas("canvas"); // Initiate a Circle instance var circle = new fabric.Circle({ radius: 50, fill: 'green' }); // Render the circle in canvas canvas.add(circle); </script> </body> </html> |
Output:
