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lw.svg-parser

SVG parser for LaserWeb/CNCWeb.

Supported tags

<svg> <title> <desc>
<g> <defs> <use>
<line> <polyline> <polygon>
<rect> <circle> <ellipse>
<path> <image> <text>

Features

  • ViewBox, PreserveAspectRatio
  • Clipping paths with Clipper.js
  • Promise mechanism
  • ES6 / UMD module

Demo

https://lautr3k.github.io/lw.svg-parser/dist/example/

Installation

Using NPM

npm install lw.svg-parser

Using GIT

git clone https://github.com/lautr3k/lw.svg-parser.git
cd svg-parser
npm install

Or download the last build from https://raw.githubusercontent.com/lautr3k/lw.svg-parser/master/dist/lw.svg-parser.js

<script src="./lw.svg-parser.js"></script>
<script>
  var parser = SVGParser.Parser();
</script>

Settings (all are optional)

let settings = {
  includes: ['svg', 'g', 'defs', 'use', 'line', 'polyline', 'polygon', 'rect', 'circle', 'ellipse', 'path', 'title', 'desc', 'image', 'text'],
  excludes: ['#text', '#comment'],
  traceSettings: { // Arc, Bezier curves only
    linear       : true, // Linear trace mode
    step         : 0.01, // Step resolution if linear mode = false
    resolution   : 100,  // Number of segments we use to approximate arc length
    segmentLength: 1     // Segment length
  },
  onTag: tag => {} // Called after a tag is parsed
}

Usages

import Parser from 'svg-parser'

let parser = new Parser(settings)

// <input> must be an raw XML string, XMLDocument, Element or File object
return parser.parse(input).then(tags => {
    console.log('tags:', tags);
    tags.forEach(tag => {
        tag.getPaths()  // return an array of Path objects (all contours + holes)
        tag.getShapes() // return an array of ExPolygons objects from Clipper.js (filled shapes)
    })
})
.catch(error => {
    console.error('error:', error);
});

After the main <svg> tag was parsed you can access this two properties on the parser instance :

parser.editor   // Editor info { name, version, fingerprint }
parser.document // Document info { width, height, viewBox }
                // where viewBox is { x, y, width, height }

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SVG parser for LaserWeb.

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