Um método de ajuste de superfície para grades triangulares considerando linhas características / A triangular surface fitting method using breaklines

AUTOR(ES)

Laércio Massaru Namikawa

DATA DE PUBLICAÇÃO

1995

RESUMO

In order to produce realistic Digital Terrain Models (DTM), one needs to preserve the ridges and valley lines (the breaklines). The use of triangular grids allows us to model real surfaces with better accuracy, since there is no need for intermediate interpolations, as in the case with rectangular grids. However the visualization with triangular irregular networks (TIN) tends to conceal the breaklines, thus producing a non realistic representation. This work presents a method that uses breakline information and triangular surface fitting, allowing a realistic DTM generation with the advantages of TIN representation.

ASSUNTO(S)

análise de terreno ajuste grades por computador triângulação superfícies curvas

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