In order to generate 3D worlds in an automated way it is important to solve the problem of integrating existing 2D and 3D data automatically. We explain some of the issues of this problem in this paper. We also introduce mechanisms for automated generation of integrated 3D geo-data sets, as well as a prototype that implements these. It is necessary to… (More)
In this paper we show how to efficiently integrate traditional GIS data into terrain models in order to generate complete 3D maps with little overhead for textures. The results meet the requirements for the Web 3D Service (W3DS), a proposal for the standardization for delivering 3D web maps. Our approach is designed to create fully vectorized 3D scenes that… (More)
Digital Elevation Models (DEM) and 3D spatial data plays an important role in typical earth science applications. Numerous simulations, e.g. flood modeling, and spatial analysis, requires very exact terrain data. During the acquisition of these data, for an example by means of laserscanning, very large data sets results due to the high measuring point… (More)
In this paper we introduce the concept and the implementation of an Emergency Route Service 3D (ERS3D), which is based on the already established OGC Standards OpenLS and which further covers the following two aspects: Firstly, the possibility to bypass restricted areas or closed streets during disaster situations and secondly the ability to return a 3D… (More)
Warning This document is not an OGC Standard. It is distributed for review and comment. It is subject to change without notice and may not be referred to as an OGC Standard. Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation.
In this paper, we describe an approach for efficiently streaming large and highly detailed 3D city models, which is based on open standards and open source developments. This approach meets both the rendering performance requirements in WebGL enabled web browsers and the requirements by 3D Geographic Information Systems regarding data structuring,… (More)
One major benefit of multi-touch interaction is the possibility for passive observers to easily follow interactions of active users. This paper presents a novel system which allows remote users to perform collaborative multi-touch interaction in a remote face-to-face situation with shared virtual material seamlessly integrated in a videoconference… (More)