blaze33 / Map33.js
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Live demo (you can double click to add missing tiles)
Installation
npm install map33
alternatively:
yarn add map33
Presentation and Usage
Map33.js takes two slippy map tilesets, one to fetch elevation data tiles, the other to texture the meshes built from said elevation data (any XYZ tileserver will do).
Live demo (you can double click to add missing tiles)
import { Map, Source, MapPicker } from 'map33' // import Map as Map33 if you use the default Map object.
const position = [45.916216, 6.860973]
const source = new Source('maptiler', '<your_maptiler_token>')
const map = new Map(scene, camera, source, position, {nTiles: 3, zoom: 11})
const mapPicker = new MapPicker(camera, map, renderer.domElement)
mapPicker.go(-45, 128)
Source class
Defines a tileset source used to fetch textures applied to the 3D terrain mesh.
const source = new Source(api, token)
| Argument | Description | Default Value |
|---|---|---|
| api | One of ['osm', 'mapbox', 'eox', 'maptiler']
|
- |
| token | Your api key when using mapbox or maptiler
|
- |
Map class
The main class of map33.js. Creates a 3D map using a grid of tiles.
const map = new Map(scene, camera, source, position, options)
| Argument | Description | Default Value |
|---|---|---|
| scene | A three.js Scene instance | - |
| camera | A three.js Camera instance | - |
| source | A map33.js Source instance | - |
| position | An array containing the latitude and longitude values used to center the map | - |
| options | An object to pass some options | {} |
The options schema is defined as follow:
| Option | Description | Default Value |
|---|---|---|
| nTiles |
Map.init() will display a grid of nTiles x nTiles
|
3 |
| zoom | Default zoom level | 11 |
| tileSize | Tile size at the default zoom level | 600 |
| tileSegments | Number of segments given to the PlaneBufferGeometry constructor. Maximum value is 256
|
100 |
| zScale | The raw elevation data is multiplied by zScale when building a Tile mesh | 0.045 |
Background
Long story short, I took what I liked most about droneWorld (cf. https://discourse.threejs.org/t/3d-world-engine-droneworld-prototype/1501), ie. making 3D terrain and started from scratch to build a library that, hopefully, will be much cleaner in order to build upon and reuse.
Interesting references:
https://github.com/w3reality/three-geo
https://blog.mapbox.com/bringing-3d-terrain-to-the-browser-with-three-js-410068138357
License and attributions
The map library code is MIT licensed.
InfiniteGridHelper.js used by the example is made by Fyrestar (Github repo)
This project was bootstrapped with Create React App.
Available Scripts
In the project directory, you can run:
yarn start
Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.
The page will reload if you make edits.
You will also see any lint errors in the console.
yarn test
Launches the test runner in the interactive watch mode.
See the section about running tests for more information.
yarn build
Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.
Your app is ready to be deployed!
See the section about deployment for more information.
yarn eject
Note: this is a one-way operation. Once you eject, you can’t go back!
If you aren’t satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
You don’t have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
Learn More
You can learn more in the Create React App documentation.
To learn React, check out the React documentation.
Code Splitting
This section has moved here: https://facebook.github.io/create-react-app/docs/code-splitting
Analyzing the Bundle Size
This section has moved here: https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size
Making a Progressive Web App
This section has moved here: https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app
Advanced Configuration
This section has moved here: https://facebook.github.io/create-react-app/docs/advanced-configuration
Deployment
This section has moved here: https://facebook.github.io/create-react-app/docs/deployment
yarn build fails to minify
This section has moved here: https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify