Title :
An algorithm for the visualization of a terrain with objects
Author :
Szenberg, F. ; Gattass, Arcelo ; Carvalho, Pauloc Ezar Pinto
Author_Institution :
Grupo de Tecnologia em Comput. Grafica, PUC, Rio de Janeiro, Brazil
Abstract :
The article describes a method for object and terrain visualization by means of the combination of two algorithms, one for terrain data and one for objects. Our purpose is to generate, efficiently and rapidly, aerial images of terrain with objects such as houses, vehicles, and transmission lines, thus allowing a simulated flight. For the objects, described by lines and polygons, the Z-Buffer algorithm is used; for the terrain, described by height maps, an optimized ray casting algorithm, called Floating Horizon Algorithm, is used
Keywords :
cartography; data visualisation; geographic information systems; interactive systems; Floating Horizon Algorithm; Z-Buffer algorithm; aerial images; height maps; object visualization; optimized ray casting algorithm; simulated flight; terrain data; terrain visualization; Aerospace simulation; Casting; Data visualization; Image generation; Layout; Lighting; Navigation; Surface texture; Transmission lines; Vehicles;
Conference_Titel :
Computer Graphics and Image Processing, 1997. Proceedings., X Brazilian Symposium on
Conference_Location :
Campos do Jordao
Print_ISBN :
0-8186-8102-0
DOI :
10.1109/SIGRA.1997.625155
