Geoscience Reference
In-Depth Information
Multiscale Hypsometric Mapping
Timofey Samsonov
Faculty of Geography, Moscow State University
Russia
iamste@yandex.ru
Abstract
Multiple representations of geographic objects draw one of the main
focuses in modern cartographic research. Initial works were concentrated
on multiresolution databases and elevation models derivation through
generalization process. Development of interactive computer mapping in
90-00's lead to growth of interest in visual representations of multilevel
objects. However, the task of multiscale mapping of earth topography has
not been paid a due attention. In this work a complete technology of
making multiscale hypsometric maps is proposed, beginning from scales
and projection definition, walking through database design and DEM
generalization with novel algorithm and finally outlining map preparation
using hypsometric tints, contours and hill shading.
1- Background and objectives
Multiscale mapping is among the most prominent and problematic areas in
modern cartography. Casting away the limits of fixed-scale maps cartogra-
phers go into detail of multiresolution databases design, real-time generali-
zation, map layers structure, scale-dependent behavior and symbolization,
while trying to keep representation clear and credible. During the 80-00's
large amount of work had been done to develop and extend this area of
knowledge. Most of results were yielded in digital space, including data
generalization for multiresolution databases (Buttenfield 1993, Muller
et al. 1995, Li 2007) and optimal database structure (Jones et al. 1996,
Frye 2006).
