VARIANT - Processing and Visualizing Terrains at Variable Resolution
L. De Floriani, P. Magillo, E. Puppo
Abstract
We describe VARIANT (VAriable Resolution Interactive ANalysis of Terrains),
a new prototype system for processing and visualizing terrains at
variable resolution, which is based on a multiresolution terrain model called
a Multi-Triangulation (MT).
The system architecture is based on a kernel, the MT-manager, which
provides access primitives for modifying and querying an MT.
MT-clients are application programs that manipulate the model based on such
primitives.
A special client is the MT-builder, which is used off-line to produce
an MT starting from raw data.
Some examples of MT-clients that have interest in GIS, and require
variable resolution are discussed:
perspective visualization and flight simulation, visibility,
drainage networks, windowing, local surface estimation.
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