Renderização de rios e lagoas em cenários 3 D a partir de informações geográficas

Abstract

This work proposes a technique for rendering rivers and lakes in a 3D scenario from geographic data. The solution developed uses as input vector data describing the geometry of rivers and lakes stored in ShapeFile format. In this format rivers are represented by lines and lakes by polygons, making it difficult to use them for 3D rendering. The data go through a pre-processing for adequacy with the objective of generating a polygonal mesh for easy access to other applications. Problems such as overlapping polygons and holes in the mesh are addressed. Finally, the mesh generated is applied in a military simulation system.