How to crop the width of a cloned image using FabricJS?
In this tutorial we will learn how to crop the width in a cloned image using FabricJS. We can create an Image object by creating an instance of fabric.Image. since It is one of the basic elements of FabricJS and we can also customize it easily through the application Angle, opacity and other properties. To crop the width in the cloned image, we use WidthProperties
grammar
cloneAsImage( callback: function, { width: Number}: Object): fabric.Object
parameter
Callback (optional) - This parameter is a function that will be called with the cloned image instance as the first parameter.
< /里>Options (optional) - This parameter is an optional object that provides additional customization to our cloned image. Using this parameter we can set the multiplier, crop the cloned image, remove the current object transform or can change many other properties, where width is a property.
Option key
width - This property accepts a Number value, representing the clipping width. This attribute is optional.
Do not use widthAttribute
Example
Let's look at a code example to see how a cloned Image object displays when width Property is not used. In this case, the cloned image will not be cropped.
<!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>Without using the width property</h2>
<p>You can see that no cropping has been applied to the clone image</p>
<canvas id="canvas"></canvas>
<img src="https://www.tutorialspoint.com/images/logo.png" id="img1" style="display: none" />
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
// Initiating the image element
var imageElement = document.getElementById("img1");
// Initiate a shadow object
var shadow = new fabric.Shadow({
color: "#308080",
blur: 3,
});
// Initiate an Image object
var image = new fabric.Image(imageElement, {
top: 50,
left: 110,
skewX: 20,
shadow: shadow,
});
// Using cloneAsImage method
image.cloneAsImage(function(Img) {
Img.set("top", 150);
canvas.add(Img);
});
</script>
</body>
</html>
UsingWidthAttribute
Example
In this example, we used the width attribute and passed it the value 245, which is CropWidth. Therefore, width will be cropped.
<!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>Using the width property</h2>
<p>You can see that cropping has been applied to the clone image</p>
<canvas id="canvas"></canvas>
<img src="https://www.tutorialspoint.com/images/logo.png" id="img1" style="display: none" />
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
// Initiating the image element
var imageElement = document.getElementById("img1");
// Initiate a shadow object
var shadow = new fabric.Shadow({
color: "#308080",
blur: 3,
});
// Initiate an Image object
var image = new fabric.Image(imageElement, {
top: 50,
left: 110,
skewX: 20,
shadow: shadow,
});
// Using cloneAsImage method
image.cloneAsImage(
function(Img) {
Img.set("top", 150);
Img.set("left", 150);
canvas.add(Img);
}, {
width: 245,
}
);
</script>
</body>
</html>
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