react-svg-resizer

A simple React component for resizing SVG elements with ease.

Installation

pnpm add react-svg-resizer
# or 
yarn add react-svg-resizer

# or (Why?)
npm install react-svg-resizer

Usage

import React from 'react';
import SvgResizer from 'react-svg-resizer';

const MyComponent = () => {
  return (
    <SvgResizer size={30}>
      <svg width="100" height="100">
        <circle cx="50" cy="50" r="40" fill="blue" />
      </svg>
    </SvgResizer>
  );
};

export default MyComponent;

In this example, the SVG element inside SvgResizer will be scaled, so it's minimum axis would be 30 pixels (in this case 30x30 circle).

Means that if a svg shape size 50x100 was given and a size of 1 would be given, the shape would be scaled to 1x2.

Code sandbox demo

here's codesandbox with demo

Props

SvgResizer

Prop	Type	Default	Description
size	number	1	The desired size of the normalized SVG. It scales the SVG by the provided factor.
scaleByMax	boolean	'false'	Should the bigger axis should determine the size? by default, the final svg shape the determined relative to the smaller axis
svgProps	React.SVGProps<SVGSVGElement>	{}	Properties that would be passed down to the underlying svg react wrapper

This component can be used to wrap svgs element. You most probably want to use this component.

SvgGResizer

Prop	Type	Default	Description
size	number	-	The size of the normalized inner SVG.
center	boolean	false	Determines whether to center the SVG around the origin (0,0). Default is false.

This component is used to wrap inner SVG elements. For example <SvgGResizer><circle>...</circle></SvgGResizer>

Example

import React from 'react';
import SvgResizer, { SvgGResizer } from 'react-svg-resizer';

function App() {
  return (
    <>
      <h1>SvgResizer</h1>
      <SvgResizerDemo />{" "}
    </>
  );
}

const SvgResizerDemo = () => {
  return (
    <>
      <h2>unmodified svg</h2>
      <svg width="100" height="100">
        <circle cx="50" cy="50" r="40" fill="blue" />
      </svg>

      <h2>scale inner svg to 30</h2>
      <svg width="100" height="100">
        <SvgGResizer size={30} center={false}>
          <circle cx="50" cy="50" r="40" fill="blue" />
        </SvgGResizer>
      </svg>

      <h2>scale entire svg to 30</h2>
      <SvgResizer size={30}>
        <svg width="100" height="100">
          <circle cx="50" cy="50" r="40" fill="blue" />
        </svg>
      </SvgResizer>
    </>
  );
};

export default App;

The result:

the original svg shape is 80x80, and the scaled svg shape is 30x30.

How it works

under the hood, SvgResizer keeps track of the dimensions of the children svg by using the getBBox method, and scales the provided svg to the desired size.

License

This project is licensed under the MIT License.