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react-svg-pan-zoom
Advanced tools
A react component that adds pan and zoom features to SVG
npm install --save react-svg-pan-zoom
http://chrvadala.github.io/react-svg-pan-zoom/
git clone https://github.com/chrvadala/react-svg-pan-zoom.git
cd react-svg-pan-zoom
npm install
npm start
import React from 'react';
import ReactDOM from 'react-dom';
import {Viewer, ViewerHelper} from 'react-svg-pan-zoom';
class MyComponent extends React.Component {
constructor(props) {
super(props);
this.state = {
value: ViewerHelper.getDefaultValue(),
tool: 'pan' //one of `none`, `pan`, `zoom`, `zoom-in`, `zoom-out`
};
}
handleChange(event) {
this.setState({value: event.value});
}
handleClick(event){
console.log('click', event.x, event.y, event.originalEvent);
}
render() {
return (
<div>
<Viewer width={400} height={400}
value={this.state.value} tool={this.state.tool}
onChange={event => this.handleChange(event)}
onClick={event => this.handleClick(event)}
onMouseMove={event => this.handleMouseMove(event)} >
<svg width={800} height={800} >
<rect x="30" y="50" width="100" height="70" fill="black"/>
<circle cx="210" cy="120" r="50" fill="blue"/>
</svg>
</Viewer>
</div>
);
}
}
width
– required – width of the viewer displayed on screen (if you want to omit this see below)height
– required – height of the viewer displayed on screen (if you want to omit this see below)background
– background of the viewer (default dark grey)style
- CSS style of the viewerspecialKeys
- array of keys that in zoom mode switch zoom in and zoom out (default Win/Cmd, Ctrl)SVGBackground
- background of the SVG (default white)value
- value of the viewer (current point of view)tool
- active tool ( one of none
, pan
, zoom
)onChange
- handler something changed fn(viewerEvent)
onClick
- handler click fn(viewerEvent)
onMouseUp
- handler mouseup fn(viewerEvent)
onMouseMove
- handler mousemove fn(viewerEvent)
onMouseDown
- handler mousedown fn(viewerEvent)
Your event handlers will be passed instances of ViewerEvent
. It has some useful attributes (See below). If, for your purpose, you need original React event instance (SyntheticEvent
), you can get it through event.originalEvent
.
SyntheticEvent originalEvent
- The original React eventnumber x
- x coordinate of the event mapped to SVG coordinatesnumber y
- y coordinate of the event mapped to SVG coordinatesnumber scaleFactor
- zoom levelnumber translationX
- x delta from the viewer originnumber translationY
- y delta from the viewer originSvgPanZoom requires width and height to work propertly. If you need a responsive component you can use ViewerResponsive
, a component that extends Viewer
and detects width and height trought its parent (See ReactDimension for details).
import {Viewer, ViewerHelper} from 'react-svg-pan-zoom';
become
import {ViewerResponsive, ViewerHelper} from 'react-svg-pan-zoom';
npm run build
Your contributions (issues and pull request) are appreciated!
MIT
FAQs
A React component that adds pan and zoom features to SVG
The npm package react-svg-pan-zoom receives a total of 61,506 weekly downloads. As such, react-svg-pan-zoom popularity was classified as popular.
We found that react-svg-pan-zoom demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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