https://github.com/heremaps/quantized-mesh-decoder

JavaScript decoder for the Quantized Mesh format
https://github.com/heremaps/quantized-mesh-decoder

3d cesiumjs quantized-mesh terrain

Last synced: 3 months ago
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JavaScript decoder for the Quantized Mesh format

• Host: GitHub
• URL: https://github.com/heremaps/quantized-mesh-decoder
• Owner: heremaps
• License: mit
• Created: 2018-08-23T13:34:01.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-10-21T09:07:37.000Z (over 4 years ago)
• Last Synced: 2024-04-14T01:45:56.699Z (10 months ago)
• Topics: 3d, cesiumjs, quantized-mesh, terrain
• Language: JavaScript
• Homepage:
• Size: 259 KB
• Stars: 39
• Watchers: 8
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

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README

        
Quantized Mesh Decoder

===========================================

JavaScript decoder for the [Quantized Mesh format](https://github.com/AnalyticalGraphicsInc/quantized-mesh).

Note: This is experimental code, expect changes. 

## Installation

### In Node.js

The module is installable via yarn (or npm):

```sh

yarn add @here/quantized-mesh-decoder

```

```sh

npm install @here/quantized-mesh-decoder

```

### API Reference

```javascript

import decode from '@here/quantized-mesh-decoder'

decode(buffer, options)

```

* buffer: [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer)

* options: [DecoderOptions](#decoderoptions)

##### DecoderOptions

* maxDecodingStep: Number  

  Limits how deep decoder should go.  Takes of the properties of the `DECODING_STEPS` map. See `import { DECODING_STEPS } from '@here/quantized-mesh-decoder' `.   

  Default: `DECODING_STEPS.extensions`.

### Links

* [Quantized Mesh Specification](https://github.com/AnalyticalGraphicsInc/quantized-mesh)

* [Quantized Mesh Viewer](https://github.com/heremaps/quantized-mesh-viewer)

* [TIN Terrain](https://github.com/heremaps/tin-terrain) — tool that generates Quantized Mesh tiles out of GeoTIFF

### Sample Tiles Attribution

- `./src/assets/tile-with-extensions.terrain`: [Cesium World Terrain from Cesium ion](https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/index.html?src=Terrain.html)

- `./src/assets/tile-opentin.terrain`: [Open data](ftp://geoftp.ibge.gov.br//modelos_digitais_de_superficie/modelo_digital_de_elevacao_mde/rj25/tif/mde_27453ne_v1.zip) from brazilian government [IBGE](https://ww2.ibge.gov.br/english/), processed using [TIN Terrain](https://github.com/heremaps/tin-terrain)

### License

Copyright (C) 2018-2019 HERE Europe B.V.

See the [LICENSE](LICENSE) file in the root of this project for license details.