How To Create Svg Elements In Document Using Javascript

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Creating SVG elements in Document Object Model (DOM) is easy, and it is a powerful way to manipulate documents and improve the user experience on websites. With the help of JavaScript, you can use SVG elements to create interactive graphics, visualizations, and animations. SVG elements can also be used to create custom UI components that can be used in web and mobile applications. In this tutorial, we will discuss how you can use JavaScript to create SVG elements in document and how you can use them for a variety of purposes.

Table of Contents

What is SVG?

SVG stands for Scalable Vector Graphics, which is an XML-based vector image format for two-dimensional graphics. SVG images can be scaled to any size without losing any quality or detail. They are also resolution independent, meaning they can be viewed on any device with any screen resolution. SVG images are also lightweight compared to other image formats, making them ideal for web applications and mobile apps.

SVG elements are defined using XML. Each element is represented by an opening and closing tag and contains attributes that define how the element is drawn. SVG elements can be used to create interactive graphics and animations, visualizations, custom UI components, and more.

Creating SVG Elements in Document

In order to create an SVG element in Document, you need to use the createElementNS() method, which takes two parameters: the namespace URI and the qualified name of the element. The namespace URI is the URI of the namespace in which the SVG element will be defined. The qualified name of the element is the name of the element preceded by the namespace prefix. For example, if the namespace URI is “http://www.w3.org/2000/svg” and the element name is “rect”, the qualified name of the element will be “svg:rect”.

Example

The following code example creates a new SVG element with the qualified name “svg:rect”.

 var svgNS ="http://www.w3.org/2000/svg";
 var rect = document.createElementNS(svgNS, "svg:rect");

Using SVG Elements

Once you have created an SVG element, you can use it to create interactive graphics and animations, visualizations, custom UI components, and more. You can use the setAttribute() method to set the attributes of the SVG element. For example, if you want to create a rectangle with a width of 100 pixels and a height of 200 pixels, you would use the following code:

 rect.setAttribute("width", "100");
 rect.setAttribute("height", "200");

You can also use the getAttribute() method to get the value of an attribute. For example, if you want to get the width of the rectangle, you would use the following code:

 var width = rect.getAttribute("width");

In addition to setting and getting attributes, you can also use the appendChild() method to add the SVG element to the Document Object Model (DOM). For example, if you want to add the rectangle to the document, you would use the following code:

 document.body.appendChild(rect);

Conclusion

In this tutorial, we discussed how to create SVG elements in Document using JavaScript. We also discussed how to use the setAttribute() and getAttribute() methods to set and get the attributes of the SVG element, and how to append the element to the DOM using the appendChild() method. With the help of JavaScript, you can create interactive graphics, visualizations, and animations, as well as custom UI components, with SVG elements.