Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to set the colour of the controlling corners of a Circle using FabricJS?
In this tutorial, we are going to set the colour of controlling corners of Circle using FabricJS. The cornerColor property allows us to manipulate the colour of the controlling corners when the object is active.
Syntax
new fabric.Circle({ cornerColor: String }: Object)Parameters
options (optional) − This parameter is an Object which provides additional customizations to our circle. Using this parameter, properties such as colour, cursor, stroke width and a lot of other properties can be changed related to the object of which the cornerColor is a property.
Options Keys
cornerColor − This property accepts a String which allows us to assign a color to the controlling corners when the object is actively selected.
Example 1
Passing cornerColor as key with a color name as value
Let's see an example to change the colour by using the cornerColor property. In this case, we have assigned the value "black" to the key which makes the controlling corners appear black.
<!DOCTYPE html>
<html>
<head>
<!-- Adding the Fabric JS Library-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
<h2>Setting the colour of controlling corners of circle using FabricJS</h2>
<p>Select the object and notice the color of its controlling corners. Here we have used the <b>cornerColor</b> property to set the corners black. </p>
<canvas id="canvas"></canvas>
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
var cir = new fabric.Circle({
left: 215,
top: 100,
fill: "white",
radius: 50,
stroke: "#c154c1",
strokeWidth: 5,
borderColor: "#daa520",
cornerColor: "black"
});
// Adding it to the canvas
canvas.add(cir);
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
</script>
</body>
</html>Example 2
Assigning an RGBA value to the cornerColor property
Instead of passing a simple colour name as the String value to the key, we can also assign an RGBA value. RGBA stands for red, green, blue and alpha where alpha is the opacity. Let us see an example of how we can do that −
<!DOCTYPE html>
<html>
<head>
<!-- Adding the Fabric JS Library-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
<h2>Setting the colour of controlling corners of circle using FabricJS</h2>
<p>Select the object and notice the color of its controlling corners. Here we have used the <b>cornerColor</b> and assigned it an "rgba" value to set the corners purple. </p>
<canvas id="canvas"></canvas>
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
var cir = new fabric.Circle({
left: 215,
top: 100,
fill: "white",
radius: 50,
stroke: "#c154c1",
strokeWidth: 5,
borderColor: "#daa520",
cornerColor: "rgb(255,20,147)"
});
// Adding it to the canvas
canvas.add(cir);
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
</script>
</body>
</html>
94 Views
