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three-dxf-loader

v5.2.0

Published

Cross platform DXF loader for three.js. Out of the box usable with react-three-fiber.

Downloads

1,015

Readme

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

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);
});

Usage in React app

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 <primitive object={data?.entity} />
}

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 [email protected]
> 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.

Supported DXF Features

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.

BREAKING CHANGES

  • 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