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How to flip a Circle horizontally using FabricJS?
In this tutorial, we are going to learn how we can flip a Circle object horizontally using FabricJS. Circle is one of the various shapes provided by FabricJS. In order to create a circle, we have to create an instance of fabric.Circle class and add it to the canvas. We can flip a circle object horizontally using the flipX property.
Syntax
new fabric.Circle({ flipX: Boolean }: 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 flipX is a property.
Options Keys
flipX − This property accepts a Boolean value. It allows us to flip an object horizontally.
Example 1
Passing flipX as key with a 'false' value
Let's see an example that shows us the default orientation of a circle object in FabricJS. Since we are passing the flipX property a "False" value, the circle object will not be flipped horizontally.
<!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>How to flip a Circle horizontally using FabricJS?</h2>
<p>Here the circle has not flipped horizontally as we have set <b>flipX</b> as False. </p>
<canvas id="canvas"></canvas>
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
var circle = new fabric.Circle({
left: 215,
top: 50,
fill: "green",
radius: 80,
stroke: "#228b22",
strokeWidth: 2,
flipX: false
});
// Create gradient fill
circle.set("fill", new fabric.Gradient({
type: "linear",
coords: {
x1: 0,
y1: 0,
x2: 50,
y2: 0
},
colorStops: [{
offset: 0,
color: "red"
}, {
offset: 1,
color: "green"
}, ],
}));
// Adding them to the canvas
canvas.add(circle);
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
</script>
</body>
</html>
Example 2
Passing the flipX property as key with a 'true' value
In this example, we have a circle object of radius 80px with a horizontal linear gradient fill. As we apply the flipX property to the circle object, it flips horizontally and thus we see that the gradient has flipped as well.
<!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>How to flip a Circle horizontally using FabricJS?</h2>
<p>Here, notice that the circle has flipped horizontally (see the gradient) because we have set <b>flipX</b> as True. </p>
<canvas id="canvas"></canvas>
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
var circle = new fabric.Circle({
left: 215,
top: 50,
fill: "green",
radius: 80,
stroke: "#228b22",
strokeWidth: 2,
flipX: true
});
// Create gradient fill
circle.set("fill", new fabric.Gradient({
type: "linear",
coords: {
x1: 0,
y1: 0,
x2: 50,
y2: 0
},
colorStops: [{
offset: 0,
color: "red"
}, {
offset: 1,
color: "green"
}, ],
}));
// Adding them to the canvas
canvas.add(circle);
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
</script>
</body>
</html>
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