论文信息 - TRIANGULATED DIGITAL ELEVATION MODEL : DEFINITION OF A NEW REPRESENTATION

TRIANGULATED DIGITAL ELEVATION MODEL : DEFINITION OF A NEW REPRESENTATION

In this paper we discuss about the need of a new DEM representation for simulation in GIS. This leads us to analyse through quality criteria the current DEM structures. Then we propose a new DEM representation adapted for spatial and graph terrain analysis. An algorithm is presented and the qualities of this structure are analysed. Finally, this structure is used in a thematic application for analysis and protection against avalanches.

L. Rognant | S. Goze | J. G Planès

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