# How to flip a Circle vertically using FabricJS?

FabricJSJavascriptHTML5 Canvas

In this tutorial, we are going to learn how we can flip a Circle object vertically using FabricJS. Circle is one of the various shapes provided by FabricJS. In order to create a circle, we will have to create an instance of fabric.Circle class and add it to the canvas. We can flip a circle object vertically using the flipY property.

## Syntax

new fabric.Circle({ flipY: 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 flipY is a property.

## Options Keys

• flipY − This property accepts a Boolean value. It allows us to flip an object vertically.

## Example 1

Passing flipY 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 flipY property a false value, the circle object will not be flipped vertically.

<!DOCTYPE html>
<html>
<!-- Adding the Fabric JS Library-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>

<body>
<h2>How to flip a Circle vertically using FabricJS?</h2>
<p>This is the default orientation of the object. We have set <b>flipY</b> as False, but even if we don't use it, <b>flipY</b> will be by default set to 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",
stroke: "#228b22",
strokeWidth: 2,
flipY: false
});

type: "linear",
coords: {
x1: 0,
y1: 0,
x2: 0,
y2: 50
},
colorStops: [{
offset: 0,
color: "red"
}, {
offset: 1,
color: "green"
}, ],
}));

// Adding them to the canvas
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
</script>
</body>
</html>

## Example 2

Passing the flipY property as key with a 'true' value

In this example, we have a circle object of radius 80px with a vertical linear gradient fill. As we apply the flipY property to the circle object, it flips vertically and thus we see that the gradient has flipped as well.

<!DOCTYPE html>
<html>
<!-- Adding the Fabric JS Library-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>

<body>
<h2>How to flip a Circle vertically using FabricJS?</h2>
<p>Here observe that the circle has flipped vertically (see the gradient), as we have set <b>flipY</b> to 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",
stroke: "#228b22",
strokeWidth: 2,
flipY: true
});

type: "linear",
coords: {
x1: 0,
y1: 0,
x2: 0,
y2: 50
},
colorStops: [{
offset: 0,
color: "red"
}, {
offset: 1,
color: "green"
}, ],
}));

// Adding them to the canvas
</html>