Desenvolvimento de uma Plataforma de Software para a Modelagem Digital de Terrenos baseada em TIN

Superficies topograficas podem ser representadas com um bom grau de precisao por meio de mapas. No entanto, estes nem sempre sao as melhores ferramentas para a compreensao de relevos mais complexos. Nesse sentido, a maior contribuicao desse trabalho e a especificacao e implementacao da arquitetura de uma plataforma de software opensource voltado para a representacao de modelos digitais de terrenos baseado em TIN (Triangular Irregular Network), segundo os paradigmas da programacao orientada a objetos e programacao generica e que possibilitaram a integracao de varias ferramentas de linguagem aberta (opensource), tais como GDAL, OGR, OpenGL, OpenSceneGraph e Qt. Alem disso, o nucleo de representacao da arquitetura tem a capacidade de trabalhar com multiplas estruturas de dados topologicas que permitem extrair em tempo constante, todas as relacoes de conectividade entre as entidades vertices, arestas e faces, presentes numa subdivisao planar triangular, facilitando enormemente a implementacao de aplicacoes de tempo real. Esta capacidade e muito importante, por exemplo, na utilizacao de dados de levantamentos a laser (Lidar, ALS, TLS), possibilitando a geracao de modelos de malhas triangulares da ordem de milhoes de pontos.

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