three-dxf-loader

three-dxf-loader is a cross platform DXF file loader for THREE.js. It takes URL of a DXF file as input and returns THREE.js mesh entities. It internally uses dxf-parser for parsing DXF file. This library works out of the box with cross platform react-native and react-three-fiber.

#### Install
``
yarn add three-dxf-loader three
`
or
`
npm i three-dxf-loader three
`

#### Usage
`javascript
import * as THREE from 'three';
import { FontLoader } from "three/examples/jsm/loaders/FontLoader";
import { DXFLoader } from 'three-dxf-loader';

const fontLoader = new FontLoader();
fontLoader.load("/fonts/helvetiker_regular.typeface.json", (font) => {
const loader = new DXFLoader();
loader.setFont(font); // set fonts
loader.setEnableLayer(true); // set EnableLayer
loader.setDefaultColor(0x000000); // set DefaultColor : Default color will be applied when no color found for the entity
loader.setConsumeUnits(true); // consume units coming from DXF and scale the model to 'meter'
const scene = new THREE.Scene();
onLoad = (data) => {
if (data?.entity) {
scene.add(data.entity)
}
}
const onError = (error) => {
console.log(error);
}
const onProgress = (xhr) => {
console.log( ( xhr.loaded / xhr.total * 100 ) + '% loaded' );
}
loader.load(url, onLoad, onProgress, onError);
});
`

$3


`javascript
import * as THREE from 'three'
import { useLoader } from '@react-three/fiber'
import { DXFLoader } from 'three-dxf-loader'

function Scene() {
const data = useLoader(DXFLoader, url, (loader) => {
// loader.setFont(font); // set fonts
loader.setEnableLayer(true); // set EnableLayer
loader.setConsumeUnits(true); // consume units coming from DXF and scale the model to 'meter'
loader.setDefaultColor(0x000000); // set DefaultColor : Default color will be applied when no color found for the entity
})
return
}

`


#### Run Web Viewer Sample
!Example of the viewer

`


First, compile three-dxf-loader

> yarn install
> yarn build

then install the sample's dependencies

> cd sample
> yarn install

go back to the root and run http-server to run the sample

> cd ..
> npm install -g http-server@0.9.0
> http-server .

use http-server -c-1 . to prevent caching


`

After performing the steps above, you can see the example at http://127.0.0.1:8080/sample/index.html. You can use the DXF file included in the sample. NOTE: the latest version of http-server will go into a redirect loop if you exclude "/index.html" from the url.

$3

Supports:
* Header
* Most LW entities (lines, polylines, circles, polyfaces etc)
* Layers
* Some support for line types
* Simple Text
* Viewport
* Splines (Quadratic and Cubic)
* Ellipses
* 3DFace

Does not yet support:
* Attributes
* 3DSolids
* All types of Leaders
* MText
* other less common objects and entities.

$3

- Upgrade from 3. to 4.

Replace following code

`
loader.load(url, (data) => {
const { entities } = data
// do something with entities
}, onProgress, onError);
`

to

`
loader.load(url, (data) => {
const { entity } = data
// do something with entity or entity.children

}, onProgress, onError);
``

License

The MIT License