What data formats/projections does Cesium support?

[Daniel Weaver]

Currently doing a trade study on different GIS applications, mainly Cesium, ARC GIS, QGIS, and World Wind.

I'm wondering if there is a list anywhere w/ all the possible data formats/projects Cesium supports? Haven't had much luck.

Thanks in advance.

[Mark Erikson]

Not sure if there's an absolute specific list somewhere.  You might want to quantify your question a bit more, specifically around what types of data you're interested in.

As a rough list off the top of my head:

- Terrain: Cesium's self-defined "heightmap" and "quantized-mesh" tile formats
- Imagery: Standard TMS-layout imagery tilesets containing PNG and JPG images, plus some support for Google Earth Enterprise servers
- General rasters: roughly anything that can be displayed by a browser
- Vectors: Cesium's own JSON-based CZML format, and most of the KML format
- 3D: less familiar with this. GLTF, Cesium's new 3DTiles format, etc.

[pink...@gmail.com]

Hi Daniel,

when I was looking into Cesium I found this:
https://cesiumjs.org/features.html
Hope it's useful for you

[Gabby Getz]

Hi Daniel,

Cesium supports the following:

Terrain:

  - Our own quantized-mesh format

  - heightmap

  - Google Earth Enterprise

  - See a showcase of different terrain providers, or take a look at the Terrain Tutorial for more information

Imagery:

  - Supports data from single tile, WMS, TMS, WMTS (with time dynamic imagery), ArcGIS, Bing Maps, Google Earth, Mapbox, and Open Street Map servers

  - See the Imagery Layers Showcase, or take a look at the Imagery Layers Tutorial for more information.

Vector formats:

  - KML, GeoJSON, and TopoJSON

  - Time dynamic scenarios using Cesium's CZML format. See the CZML Showcase as well.

3D Models: 

  - glTF models

  - We provide an online converter to convert COLLADA and OBJ files to glTF.

  - 3D Tiles streams heterogeneous 3D data, including photogrammetry models, 3D buildings, CAD and BIM exterior and interiors, and point clouds

The Features Checklist page is a great resource as well, thanks!

Let me know if you have any additional questions or feedback.

Thanks,

Gabby

[james.p...@gmail.com]

Still none the wiser as to which projections are supported. Like for example EPSG:4326 2D projection using WS84 expressed in Lat/lon order (https://www.epsg-registry.org/export.htm?wkt=urn:ogc:def:crs:EPSG::4326) ?

[Scott Reynolds]

Map images, via ImageryProviders, support Web Mercator and Equirectangular projections.

Supported vector formats CZML, GeoJSON, and KML require geometry coordinates in CRS urn:ogc:def:crs:OGC::CRS84 with optional height in meters above WGS84 ellipsoid.  CZML also supports cartesian coordinates in ECEF or ECI reference frames.

Hope that helps.

Scott

[Answer]

My problem hasn't been solved yet, because I'm a beginner and I don't know any better way to solve it.

If you have good methods, please advise.

------------------ 原始邮件 ------------------

发件人: "Scott Reynolds"<sc...@stk.com>;

发送时间: 2019年1月22日(星期二) 上午8:20

收件人: "cesium-dev"<cesiu...@googlegroups.com>;

主题: [cesium-dev] Re: What data formats/projections does Cesium support?

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[Omar Shehata]

I'm copying Scott's answer from this GitHub discussion:

Cesium supports map image data in Web Mercator or Plate Carree/Equirectangular projections. This issue captures community interest in having native support for other projections.

I think the easiest way to get it in Cesium is to reproject your imagery using a tool like GDAL before serving it in Cesium.

On Monday, January 21, 2019 at 7:27:42 PM UTC-5, Answer wrote:

My problem hasn't been solved yet, because I'm a beginner and I don't know any better way to solve it.

If you have good methods, please advise.

------------------ 原始邮件 ------------------

发件人: "Scott Reynolds"<sc...@stk.com>;

发送时间: 2019年1月22日(星期二) 上午8:20

收件人: "cesium-dev"<cesium-dev@googlegroups.com>;

To unsubscribe from this group and stop receiving emails from it, send an email to cesium-dev+unsubscribe@googlegroups.com.