TerraVision II: visualizing massive terrain databases in VRML

Reddy, Martin; Leclerc, Yvan G.; Iverson, Lee; Bletter, N.

doi:10.1109/38.749120

Cited by 59 publications

(34 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Examples are the tessellations used for GeoVRML (Reddy M, Leclerc YG, Iverson L, Bletter N (1999) or VGIS (Lindstrom P, Koller D, Ribarsky W, Hodges LF, Op den Bosch A, Faust N (1997). It is also used as the storage coordinate system of many publicly available global data sets:…”

Section: Introductionmentioning

confidence: 99%

Projecting a Regular Grid onto a Sphere or Ellipsoid

Aasgaard

2002

Advances in Spatial Data Handling

View full text Add to dashboard Cite

This paper presents a new map projection intended for mapping regular Level-ofDetail structures like quad-trees, wavelets or Lindstrom/ROAM triangulations on a spherical/ellipsoidal earth. The projection maps the squares of regular structures to near-squares on the globe, even near the poles. The projection gives simple equations, visually pleasing graphic output and works well with familiar algorithms and data structures.

show abstract

Section: Introductionmentioning

confidence: 99%

Projecting a Regular Grid onto a Sphere or Ellipsoid

Aasgaard

2002

Advances in Spatial Data Handling

View full text Add to dashboard Cite

show abstract

“…Further examples of existing 3D research prototypes include Terrafly (Rishe et al, 2004), GeoVR (Huang and Lin, 1999) and TerraVisionII (Reddy et al, 1999). One noteworthy system, called GeoTime (Kapler and Wright, 2005) proposes an interesting solution to the problem of integrating timeline events into interactive GIS.…”

Section: Related Workmentioning

confidence: 99%

Multilayer hybrid visualizations to support 3D GIS

Brooks

Whalley

2008

Computers, Environment and Urban Systems

View full text Add to dashboard Cite

In this paper we present a unique hybrid visualization system for spatial data. Although some existing 3D GIS systems offer 2D views they are typically isolated from the 3D view in that they are presented in a separate window. Our system is a novel hybrid 2D/3D approach that seamlessly integrates 2D and 3D views of the same data. In our interface, multiple layers of information are continuously transformed between the 2D and 3D modes under the control of the user, directly over a base-terrain. In this way, our prototype system is able to depict 2D and 3D views within the same window. This has advantages, since 2D and 3D visualizations can each be easier to interpret in different contexts.In this work we develop this concept of a hybrid visualization by presenting a comprehensive set of capabilities within our distinctive system. These include new facilities such as: hybrid landmark, 3D point, and chart layers, the grouping of multiple hybrid layers, layer painting, the merging of layer controls and consistent zooming functionality.

show abstract

“…Targeting content distribution on the Web, [Reddy et al 1999] describe TerraVision II that is a geo-referenced VRML97 terrains viewer. A quadtree hierarchy of terrain grids is computed off-line.…”

Section: Out-of-core Techniquesmentioning

confidence: 99%

“…In order to perform the terrain transmission and management we used a classical tiling system [Pajarola 1998;Reddy et al 1999;Zhao et al 2001;Larsen and Christensen 2003]. The database is generated once by subdividing the full DEM and texture of the terrain.…”

Section: Overviewmentioning

confidence: 99%

Adaptive streaming and rendering of large terrains using strip masks

Pouderoux

Marvie

2005

Proceedings of the 3rd International Conference on Computer Graphics and Interactive Techniques in Australasia and South East A

View full text Add to dashboard Cite

Terrain rendering is an important factor in the rendering of virtual scenes. If they are large and detailed, digital terrains can represent a huge amount of data and therefore of graphical primitives to render in real-time. In this paper we present an efficient technique for outof-core rendering of pseudo-infinite terrains. The full terrain height field is divided into regular tiles which are streamed and managed adaptively. Each visible tile is then rendered using a precomputed triangle strip patch selected in an adaptive way according to an importance metric. Thanks to these two levels of adaptivity, our approach can be seen as a cross-platform technique to render terrains on any kind of devices (from slow handheld to powerful desktop PC) by only exploiting the device capacity to draw as much triangles as possible for a target frame rate and memory space.

show abstract

TerraVision II: visualizing massive terrain databases in VRML

Cited by 59 publications

References 9 publications

Projecting a Regular Grid onto a Sphere or Ellipsoid

Projecting a Regular Grid onto a Sphere or Ellipsoid

Multilayer hybrid visualizations to support 3D GIS

Adaptive streaming and rendering of large terrains using strip masks

Contact Info

Product

Resources

About