Geospatial – Solutions

Virtual 3D Globe

This solution uses the WebGL technology. Open Source, the application is also plugin free!

OpenWebGlobe consists of a high-performance 3D geobrowser and it also encompasses the software for processing very large volumes of geospatial data in highly parallel and scalable computing environments. The WebGL Version runs in the browser without plugin.

Using the resources of your map, the virtual WebGL globe integrates data by WMS flow. Open Source map engines such as OpenStreetMap or Blue Marble are available by default to support your 3D information. Using the WebGL library to develop the solution, Camptocamp ensures its compatibility with recent web browsers and different operating systems (Windows, MacOS, Linux…). The portability of your application is therefore guaranteed.

Basic Components

Open Source, the adaptations and the customization of the solution are simplified and truly match your  territory. Two data sources are required to build a referential:

  • a Digital Terrain Model -DTM- (to allow the 3D display);
  • an aerial image (to complete the DTM).

Integration of buildings

OpenWebGlobe

The Javascript client uses a streaming chunked level of detail algorithm to request only the data that is required for the current view. Detailed models of close objects are loaded, whereas only simplified models of distance objects are requested. This minimizes the data streamed to the client while still allowing the user to explore the data in full detail.

Textured buildings can be converted from the industry-standard Collada and CityGML formats and optimized for the web.

swiss3d.openwebglobe.org

An intuitive navigation

The navigation is similar to Google Earth’s ; the user can use the mouse and the keyboard or the navigation toolbar. Altitude, orientation and inclination can be selected. Places can be bookmarked (pre–configuration of cultural or natural territory).

NO plugin on the client side

The WebGL technology uses the graphic map resources directly from the browser. Our solution does not require the installation of a plugin on the client side; users can easily access the 3D geoportal without specific manipulation nor the adaptation of their workstation.

Smooth Transition between 2D and 3D

Cesium

OpenWebGlobe supports several data categories such as image data, elevation data, points of interest, vector data, and 3D objects. Before streaming over the Internet, this data must be pre-processed. Such pre-processing usually comprises a transformation from a local to a global reference system, creation of pyramid layers or levels of detail (LOD), tiling of the data.

Because data sets are usually large, containing several terabytes, advanced out-of-core rendering mechanisms with a level of detail approach are used for visualization.

Features

  • Large scale terrain rendering
  • Source Development Kit for custom applications
  • Display large imagery data

Advantages

  • Native HTML 5 no plugins required
  • Supported by all major browsers except IE
  • Open source licenced under MIT