Visualizing changes in a dynamic Voronoi data structure via time travel

Abstract:

In recent years there has been rapidly growing interest by the GIS community in new visualization methods for cartographic data. The visualization of map changes is important for several reasons: spatiotemporal analysis, process modelling, and animated maps. It is now widely recognized that current GIS software has no ability to maintain incremental change of spatio-temporal data, and therefore visualization of such data is limited to series of ‘snapshots’ of cartographic data (see [Peque94a]). The growing amount of research on spatio-temporal databases shows that today’s world of spatial data handling requires a dynamic and interactive environment for map visualization. In this paper we will present a conceptual approach for representing cartographic data changing in time and space. The approach emphasizes several research efforts: on the Voronoi spatial data structure, the reversibility of its map construction commands, and their applicability to map visualization and map animation.

Año de publicación:

1998

Keywords:

Fuente:

google