# Node 3D Portrayal Service

![](figures/home.jpg)

This is a 3D Portrayal Service implementation that is compatible with [3D Tiles](https://github.com/CesiumGS/3d-tiles) and [i3s](https://github.com/Esri/i3s-spec) specifications (returns metadata in the response).


## Installing

The service is implemented using [Node js](https://nodejs.org/en/). Install the dependencies with the `npm install` command. For the moment there is no bundler. Place the contents of the repository on your server with Node.js installed and run the "start" script with npm.

`npm run start`

If your server has a process manager installed, then configure accordingly.

## Usage

You can change the port in `config.js`, default port is 9000.
You access the service with the `/service/v1` endpoint and then provide additional query parameters:
* getCapabilities: `{host}:{port}/service/v1?`
* getCapabilities query parameters:

`service=3DPS`

`&acceptversions=1.0`

`&request=getCapabilities`

The getCapabilities request generates dynamically a response based on the `assets/assets.json` file.

* getScene: `{host}:{port}/service/v1?`
* getScene query parameters:

`service=3DPS`

`&acceptversions=1.0`

`&request=getScene`

`&layers=Buildings_Hamburg`

`&boundingbox=lon_1,lat_1,lon_2,lat_2` (optional)

`&crs=EPSG:4326`

When the query parameters are not valid an xml exception is returned.

## Examples

* [localhost getCapabilities](http://localhost:9000/service/v1?service=3DPS&acceptversions=1.0&request=getCapabilities)
* [localhost getScene](http://localhost:9000/service/v1?service=3DPS&acceptversions=1.0&request=getScene&layers=Niedernhall&boundingbox=9.6158087151,49.2935455509,9.6202933686,49.2963390299&crs=EPSG:4326)