In this paper we consider the problem of defining and answering spatial queries on hierarchical terrain models that provide a multiresolution representation. In particular, we focus our attention on interference queries in which the query object is a spatial entity not belonging to the model. We propose algorithms for efficiently answering such queries on a triangle-based hierarchical model. -Authors
Spatial queries on a hierarchical terrain model
De Floriani L.;Puppo E.
1994-01-01
Abstract
In this paper we consider the problem of defining and answering spatial queries on hierarchical terrain models that provide a multiresolution representation. In particular, we focus our attention on interference queries in which the query object is a spatial entity not belonging to the model. We propose algorithms for efficiently answering such queries on a triangle-based hierarchical model. -Authors
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