DXF parser for node/browser.
Uses several ES6 features in the source code (import, classes, let, const, arrows) but is packaged using babel so you can use it legacy JS environments.
Version 2.0 is a complete rewrite from the first attempt to write it in a SAX style, which wasn't really appropriate for a document with nested references (e.g inserts referencing blocks, nested inserts).
Version 3.0 converted the codebase to use standard JS, ES6 imports, stopped using Gulp, and updated & removed some dependencies.
Version 4.x is in progress and the aim is to use native SVG elements where possible, e.g.
<ellipse /> etc. 4.0 introduces the
<circle /> element.
At this point in time, the important geometric entities are supported, but notably:
and some others are parsed, but are not supported for SVG rendering (see section below on SVG rendering)
There is an ES5 and ES6 example in the
examples/ directory that show how to use the library. There are exposed functions for advanced users, but for the majority of users you can use the
Helper object to get the data you're interested in (or convert to SVG):
const helper = new Helper(<DXF String>) // The 1-to-1 object representation of the DXF console.log('parsed:', helper.parsed) // Denormalised blocks inserted with transforms applied console.log('denormalised:', helper.denormalised) // Create an SVG console.log('svg:', helper.toSVG()) // Create polylines (e.g. to render in WebGL) console.log('polylines:', helper.toPolylines())
Running the Examples
Node ES5. Will write an SVG to
$ node examples/example.es5.js
Node ES6. Will write an SVG to
$ npx babel-node examples/example.es6.js
Browser. Compile to a browser bundle and open the example webpage:
$ npm run compile $ open examples/dxf.html
Geometric elements are supported, but dimensions, text, hatches and styles (except for line colors) are not.
Native SVG elements are used as far as possible for curved entities (
<ellipse/> etc.), except for the SPLINE entity, which is interpolated.
Here's an example you will find in the functional test output:
The library supports outputting DXFs as interpolated polylines for custom rendering (e.g. WebGL) or other applications, by using:
There is a command-line utility (courtesy of @Joge97) for converting DXF files to SVG:
$ npm i -g dxf $ dxf-to-svg Usage: dxf-to-svg [options] <dxfFile> [svgFile] Converts a dxf file to a svg file. Options: -V, --version output the version number -v --verbose Verbose output -h, --help output usage information
$ npm test
will execute the unit tests.
$ npm run test:functional will run the functional tests in a browser. Please open
toSVG.html when the file listing loads in the browser (or open
- Liam Mitchell https://github.com/LiamKarlMitchell
- Artur Zochniak https://github.com/arjamizo
- Andy Werner https://github.com/Gallore
- Ivan Baktsheev https://github.com/apla
- Jeff Chen https://github.com/jeffontheground
- Markko Paas https://github.com/markkopaas
- Kim Lokøy https://github.com/klokoy
- Erik Söhnel https://github.com/hoeck
- Teja https://github.com/hungerpirat
- Jakob Pallhuber https://github.com/Joge97